Session Guide www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

SCHEDULE AT A GLANCE

Click on any Saturday, April 24, 2021 (pages 5-11) session title to 12:00 – 4:00 pm SYMPOSIUM: Practice Management jump to that page. SYMPOSIUM: Advance Practice Provider/Allied Health 1:00 - 4:00 pm WORKSHOP: Question Writing: Do You Know How to Write the Perfect Exam Question? 1:00 – 4:30 pm SYMPOSIUM: Advanced Techniques in Rectal Prolapse Surgery: Ventral Rectopexy Masterclass SYMPOSIUM: AIN and HRA: What the Colorectal Surgeon Needs to Know 1:00 – 5:30 pm WORKSHOP: Early Career Mock Orals and More Sunday, April 25, 2021 (pages 12-24) 7:00 – 9:00 am SYMPOSIUM: Critical Review of Manuscripts 7:30 – 9:45 am SYMPOSIUM: Advanced Endoscopy 8:00 – 9:30 am SYMPOSIUM: The Challenging Stoma 8:00 – 10:00 am SYMPOSIUM: Core Subject Update PLENARY ABSTRACT SESSION I: Benign Anorectal Disease and Pelvic Floor 10:00 – 10:15 am Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 10:15 am – 12:00 pm PLENARY ABSTRACT SESSION II: Rectal Cancer 10:15 – 11:45 am SYMPOSIUM: Management of Diverticulitis. Is There Anything We Were Taught That is True? SYMPOSIUM: Pelvic Floor: The Great Falling Out. QUICK SHOTS I: Quality, Cost and Education 12:00 – 1:00 pm Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 1:00 – 1:30 pm Welcome and Opening Announcements 1:30 – 2:15 pm Humanities in Surgery Lectureship 2:15 – 3:00 pm Memorial Lectureship Honoring David Margolin, MD 3:00 – 3:15 pm Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 3:15 – 4:30 pm SYMPOSIUM: Duty Hours and Evaluation Forms and Robots, Oh My! A Levelheaded Approach to Intraoperative Teaching 3:15 – 4:45 pm SYMPOSIUM: Paradigm Shifts in the Diagnosis and Neoadjuvant Treatment of Rectal Cancer PLENARY ABSTRACT SESSION III: Colorectal Cancer and Other Neoplasia 6:30 – 8:30 pm ASCRS Welcome Reception: ASCRS “TOGETHER IN SPIRIT” (Networking Lounge) Monday, April 26, 2021 (pages 25-38) 7:00 – 8:00 am LGBTQ+ and Allies Virtual Meet-up Meet the Professor Roundtables 7:30 – 9:15 am PLENARY ABSTRACT SESSION IV: Quality Cost and Education 7:45 – 9:15 am Quick Shots of Distinction 8:00 – 9:15 am ABSTRACT SESSION: General Surgery Forum 9:15 – 9:30 am Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 9:30 – 10:15 am Norman D. Nigro, MD, Research Lectureship 10:15 – 11:30 am QUICK SHOTS II: Benign Anorectal Disease and Pelvic Floor 10:15 – 11:45 am SYMPOSIUM: Enhancing Your Recovery Program SYMPOSIUM: From Pull-through to PSARP: Caring for Patients with Congenital and Pediatric Colorectal Disease as they Age PLENARY ABSTRACT SESSION V: Benign Abdominal Disease 11:45 am – 1:15 pm Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 1:15 – 2:00 pm Special Lectureship: Leadership in Turbulent Times

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SCHEDULE AT A GLANCE (continued) 2:00 – 3:15 pm SYMPOSIUM: Controversies in IBD Surgery SYMPOSIUM: How to Wake-Up from An Intra-Operative Nightmare SYMPOSIUM: Beyond the Knife. Personalized Colorectal Cancer Treatment – Genetics, Molecular Targets, Immunotherapy and More 3:15 – 3:30 pm Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 3:30 – 5:15 pm SYMPOSIUM: New Technologies 5:30 – 6:45 pm Residents’ Reception Tuesday, April 27, 2021 (pages 39-50) 7:00 – 8:00 am Diversity Virtual Meet-up 7:30 – 9:00 am QUICK SHOTS III: Rectal Cancer, Colorectal Cancer, and Other Neoplasia 8:00 – 9:00 am SYMPOSIUM: A Well-Made Anastomosis Could Be Your Best Sleep Medicine SYMPOSIUM: Diversity in Colorectal Surgery ABSTRACT SESSION: Research Forum 9:00 – 9:15 am Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 9:15 – 10:15 am ASCRS Annual Business Meeting and State of the Society Address 10:15 – 11:00 am Masters in Colorectal Surgery Lectureship Honoring Robert D. Fry, MD 11:00 – 11:15 am Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 11:15 am – 12:00 pm Ernestine Hambrick, MD, Lectureship 12:00 – 1:30 pm Virtual Engagement Break (ASCRS Central in the Exhibit Hall) Women and Allies for Women in Colorectal Surgery Virtual Meet-up 1:30 – 3:00 pm SYMPOSIUM: Complete Response after Neoadjuvant Therapy for Rectal Cancer: Cases and Considerations SYMPOSIUM: So, You Want to Be an Academic Colorectal Surgeon? Then Come to this Session PLENARY ABSTRACT SESSION VI: Inflammatory Bowel Disease QUICK SHOTS IV: Inflammatory Bowel Disease, and Benign Abdominal Disease 3:00 – 3:15 pm Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 3:15 – 4:15 pm Deep Roots Video Presidential Address 4:15 – 4:30 pm Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 4:30 – 6:00 pm Game Show: ASCRS JeoPARODY (Networking Lounge) Wednesday, April 28, 2021 (pages 51-57) 9:00 – 10:30 am PLENARY ABSTRACT SESSION VII: Best of 2020 (I) SYMPOSIUM: The Challenge of Caring for Geriatric Patients – Adopting Novel Studies in Everyday Practice SYMPOSIUM: Video Based Education Premiers: Robotic and Laparoscopic Techniques SYMPOSIUM: Best of the Diseases of the Colon & Rectum Journal 10:30 – 10:45 am Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 10:45 – 11:30 am Harry E. Bacon, MD, Lectureship 11:30 am – 12:30 pm Virtual Engagement Break (ASCRS Central in the Exhibit Hall) 12:30 – 1:15 pm PLENARY ABSTRACT SESSION VIII: Best of 2020 (II) 12:30 – 2:00 pm SYMPOSIUM: Anorectal Controversies: Let’s Get to the Bottom of This SYMPOSIUM: Alternate Career Options: From Manhattan to Rural America 2:00 – 2:45 pm QUICK SHOTS: Best of 2020 2:00 – 3:15 pm Abstract Video Session 3:30 pm Meeting Adjourns

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General Information All sessions are in the auditorium unless noted. All times are in Pacific Time. Please Note: Times and Speakers are subject to change. Continuing Medical Education Information Continuing Medical Education Mission Statement treatment in patients with diseases of the The American Society of Colon and Rectal colon, rectum and anus Surgeons (ASCRS) is dedicated to ensuring This activity is supported by educational grants high-quality patient care by advancing the science from commercial interests. Complete information through research and education for prevention will be provided to participants prior to the and management of disorders of the colon, activity. rectum, and anus. ASCRS takes responsibility for the content, quality Annual Meeting Scientific Meeting Goals, and scientific integrity of this CME activity. Purpose and Learning Objectives Accreditation The goals of the American Society of Colon and The American Society of Colon and Rectal Surgeons Annual Scientific Meeting are to Rectal Surgeons (ASCRS) is accredited improve the quality of patient care by maintaining, by the Accreditation Council for developing and enhancing the knowledge, skills, Continuing Medical Education (ACCME) professional performance and multidisciplinary to provide continuing medical education (CME) relationships necessary for the prevention, for physicians. ASCRS takes responsibility for the diagnosis and treatment of patients with diseases content, quality and scientific integrity of this CME and disorders affecting the colon, rectum and activity. anus. The Program Committee is dedicated to meeting these goals. Continuing Medical Education Credit This scientific program is designed to provide The American Society of Colon and Rectal surgeons with in-depth and up-to-date knowledge Surgeons (ASCRS) designates this live activity for relative to surgery for diseases of the colon, a maximum of 30.5 AMA PRA Category 1 Credits™ rectum and anus with emphasis on patient care, and designates these enduring activities for a teaching and research. maximum of 54 AMA PRA Category 1 Credits™. Physicians should claim only the credit Presentation formats include podium commensurate with the extent of their presentations followed by audience questions and participation in the activity. critiques, panel discussions, ePosters (ePoster presentations), video presentations and symposia Attendees can earn 1 CME credit for every 60 focusing on specific state-of-the-art diagnostic minutes of educational time. and treatment modalities. CME credits are subject to change The purpose of all sessions is to improve the quality of care of patients with diseases of the Continuing Nursing Education Accreditation colon and rectum. At the conclusion of this SynAptiv is an approved provider meeting, participants should be able to: of continuing nursing education by the California Board of • Recognize new information in colon and Registered Nursing. Provider approved by rectal benign and malignant treatments, California Board of Registered Nursing, Provider including the latest in basic and clinical #16031 for 25 contact hours. research • Describe current concepts in the diagnosis Continuous Certification Credit (Previously MOC) and treatment of diseases of the colon, Successful completion of the designated self- rectum and anus assessment activities enables the learner to earn up to 10 credits toward Self-Assessment • Apply knowledge gained in all areas of requirements of the American Board of Colon and colon and rectal surgery Rectal Surgery’s Continuous Certification program. • Recognize the need for multidisciplinary

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Daily Schedule

Saturday, April 24, 2021 Exhibit Hall Hours: 12:00 – 5:30 pm Ongoing Video Room: 12:00 – 5:30 pm ePosters: 12:00 – 5:30 pm 12:00 – 4:00 pm Co-Directors Jeffrey Cohen, MD, Hartford, CT SYMPOSIUM: Practice Management Jennifer Rea, MD, Lexington, KY CME Credit Hours: 4 12:00 pm Introduction CNE Credit Hours: 4 Jeffrey Cohen, MD, Hartford, CT Most physicians entering practice following Jennifer Rea, MD, Lexington, KY completion of their clinical training are poorly 12:05 pm The Art of Negotiation: Strategies prepared for the non-clinical aspects of the that Work practice of medicine. Whether joining a small Jennifer Rea, MD, CPE, Lexington, KY single specialty practice or becoming part of a large healthcare system, physicians have had 12:25 pm The Art of Negotiation: Does Gender little formal education and training in what is Matter? broadly described as the “business of Karin Hardiman, MD, PhD, Birmingham, AL medicine.” 12:45 pm Revenue Cycle 101 This multiyear symposium course is designed David O’ Brien, MD, Portland, OR to meet the needs of our membership by 1:00 pm Ancillary Services and teaching the basic principles of the business of Entrepreneurship clinical practice development and maintenance, Steven Fassler, MD, Abington, PA while also providing a “toolbox” for dealing with change management, organizational 1:20 pm Panel Discussion relationships, communication skills and All Faculty strategic thinking. While primarily focused on 2:00 pm Assessing Strategic Opportunities: colorectal surgeons in the first decade of their Leaving or Returning to Academia career, the topics presented will be relevant to Daniel Herzig, MD, Portland, OR the entire membership, in particular those that are contemplating transitions in their careers. 2:15 pm Assessing Strategic Opportunities: Choosing a New Institution Objectives Daniel Herzig, MD, Portland, OR At the conclusion of this session, participants 2:30 pm Marketing Your Practice in 2021 should be able to: Rebecca Stewart, Hartford, CT 1. Describe strategies to effectively negotiate 2:45 pm Leadership Lessons Learned During an employment contract and gender-specific the Time of COVID-19 issues related to contract negotiation Jeffrey Cohen, MD, Hartford, CT 2. Describe the common negotiation 3:00 pm Mentorship and Leadership: techniques, focusing on the concept of Perspectives from the Editor “getting to yes” Susan Galandiuk, MD, Louisville, KY 3. Define MACRA and know how it affects the income stream of your practice

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Saturday, April 24, 2021

Practice Management continued 5. Promote and build a national network of colon and rectal surgery APPs with a 3:15 pm Mentorship and Leadership: common mission, goals, and connection to Perspectives from a Program ASCRS Director Leander Grimm, Jr., MD, Mobile, AL Director 3:30 pm Panel Discussion Michele Rubin, MSN, APN, CNS-BC, CGRN, All Faculty Chicago, IL 4:00 pm Adjourn 12:00 pm Introductions Michele Rubin, MSN, APN, CNS-BC, CGRN, Chicago, IL 12:00 – 4:00 pm 12:05 pm Workup and Surgical Option for SYMPOSIUM: Advance Practice Provider/ Chronic Constipation Allied Health Karrie Ann Driscoll, MSN, ANP-BC CME Credit Hours: 4 12:25 pm Case Presentation: Low Anterior CNE Credit Hours: 4 Resection Syndrome Samantha Wolff, PA-C, Milwaukee, WI Advanced practice providers (APPs) and other allied health members have become a crucial 12:45 pm Perioperative Nutrition part of health care teams and are providing Kelly Issokson, MS, RD, CNSC, Los Angeles, CA front-line care to colorectal surgery patients. This symposium offers an opportunity for APPs 1:05 pm APP Practice Models/Scope of to come together with their surgeon partners Practice and other allied health members of the surgical Michele Rubin, APRN, CNS-BC, Chicago, IL team to further their knowledge on timely 1:30 pm Panel Discussion and Questions topics, as colorectal surgical teams become more diverse and utilize APPs in increasingly 2:00 pm Condyloma and HRA Clinic complex roles. Daniel Worrall, APRN, NP-BC, Boston, MA Objectives 2:20 pm Benign Anorectal: Hemorrhoids, At the conclusion of this session, participants Fissures and Fistulas should be able to: Marcia A. Dinsmore, APRN, NP-BC, 1. Recognize the varied practice roles APPs Rochester, NY have in colon and rectal Surgery 2:40 pm Ostomy Clinic 2. Realize the importance of nutrition peri- Janice Colwell APRN, CNS-BC, Chicago, IL operatively 3:00 pm J-Pouch Assessment and 3. Describe APP practice models that exist Surveillance Clinic within the inpatient, outpatient or Michele Rubin APRN, CNS-BC, Chicago, IL combination of settings. Optimizing APP scope of practice and utilization can lead to 3:25 pm Questions and Answer increased patient access to care, increased 4:00 pm Adjourn productivity of the team and improved APP and patient satisfaction 4. Gain insight and learn from other APP participants with facilitated round table discussions on APP roles, barriers to practice, job satisfaction and experience

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Saturday, April 24, 2021 1:00 - 4:00 pm 4. Develop a second order question that combines diagnosis and management and WORKSHOP: Question Writing: Do You format the answers in an acceptable form Know How to Write the Perfect Exam 5. Recognize the key differences between a Question? written question and question sequence CME Credit Hours: 3 developed for oral examination formats, as well as questions for various other Registration Required examination formats Link to be sent to pre-registered participants Co-Directors Limit: 70 participants Glenn Ault, MD, MSEd, Los Angeles, CA Please Note: 3:00 - 4:00 pm is live interaction Rebecca Hoedema, MD, Grand Rapids, MI with the faculty. 1:00 pm Introduction There are multiple areas of examination in the Glenn Ault, MD, MSEd, Los Angeles, CA realm of colon and rectal surgery that require Rebecca Hoedema, MD, Grand Rapids, MI written questions to assess knowledge. These include the qualifying written exam, the 1:05 pm Key Concept – The True certifying oral exam, continuous certification Foundation of a Good Question questions, CARSITE, CARSEP and CREST. Jennifer Beaty, MD, Omaha, NE Despite looking straightforward, it is extremely 1:25 pm The Stem – The Makings of a Good difficult to write a good exam question. Many Question concepts are controversial and what is not Shane McNevin, MD, Spokane, WA controversial can become trivial. There are 1:45 pm The Answers – They Can Ruin a basic guidelines that help the writer, and this is Great Stem a skill that can be learned and improve with Liana Tsikitis, MD, Portland, OR practice. In recent years emphasis has been placed on how to write an acceptable exam 2:05 pm Finalizing Questions – Rescue and question and guidelines have been published Salvage by organizations such as the National Board of Glenn Ault, MD, MSEd, Los Angeles, CA Medical Examiners. 2:20 pm Critiques – Painful but Very Objectives Important Rebecca Hoedema, MD, Grand Rapids, MI At the end of this session, participants should be able to: 2:40 pm The Art of Writing an Oral 1. Identify fundamental problems with Examination Question Scott Steele, MD, MBA, Cleveland, OH construction of questions developed for testing purposes 3:00 pm Let’s Write Questions 2. Explain the sequential thinking process used All Faculty to write an acceptable question and 4:00 pm Adjourn understand how a key concept drives question development 3. Demonstrate how to write a stem for a question utilizing the key concept as a foundation

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Saturday, April 24, 2021 1:00 – 4:30 pm Co-Directors Brooke Gurland, MD, Stanford, CA SYMPOSIUM: Advanced Techniques in James Ogilvie, Jr., MD, Grand Rapids, MI Rectal Prolapse Surgery: Ventral Andrew Stevenson, MD, Brisbane, Australia Rectopexy Masterclass 1:00 pm Introduction CME Credit Hours: 3.5 Brooke Gurland, MD, Stanford, CA CNE Credit Hours: 3.5 1:10 pm Principles and Evolution of Rectal prolapse is a relatively common Procedures for Rectal Prolapse debilitating condition with both functional and Anders Mellgren, MD, PhD, Chicago, IL anatomic sequelae. 1:25 pm Testing? What Helps Me Prior to Ventral Rectopexy (VR) is the current gold Prolapse/VR Repair? standard for treatment of rectal prolapse in Amy Thorsen, MD, Minneapolis, MN most countries outside of North America. VR 1:40 pm Rectal Prolapse Outcomes: How can correct full-thickness rectal prolapse, Does Ventral Rectopexy Measure Up rectoceles and internal rectal prolapse and can Mehraneh Dorna Jafari, MD, Irvine, CA be combined with vaginal prolapse procedures, such as sacrocolpopexy, in patients with 1:55 pm RVR Getting Started: VR / Initial multicompartment pelvic floor defects. Limiting Patient Selection and Booking Your dissection to the anterior rectum minimizes First Few Cases autonomic nerve damage associated with Kenneth Loh, MD, San Francisco, CA posterior dissection and division of the lateral 2:10 pm To Mesh or Not Mesh in stalks. Multicompartment Prolapse VR is technically demanding and requires a Liliana Bordeianou, MD, Boston, MA complete ventral dissection of the rectovaginal 2:25 pm LX VR – How I Do It septum (rectovesical in men) down to the James Ogilvie, Jr., MD, Grand Rapids, MI pelvic floor and suturing skills within a confined space that further maximizes the difficulty. 2:40 pm Robotic VR - How I Do It Poor technique minimizes the functional benefit Joseph Carmichael, MD, Irvine, CA and increases the risk for complications. Formal 2:55 pm VR for ODS and IRP training programs in VR can help to avoid Sara Vogler, MD, Cleveland, OH complications and improve outcomes. 3:10 pm Management and Prevention of VR Objectives Complications At the conclusion of this session, participants Elizabeth Raskin, MD, Loma Linda, CA should be able to: 3:25 pm Recurrent Rectal Prolapse: Where 1. Explain ventral rectopexy, indications and Does VR Fit In? long-term outcomes Ian Paquette, MD, Cincinnati, OH 2. Describe surgical steps for ventral rectopexy 3:40 pm Pelvic Mesh and Sacrocolopexy using a minimally invasive approach such as Pearls Applicable to VR laparoscopy or robotics Felicia Lane, MD, Irvine, CA 3. Distinguish how to avoid and how deal with 3:55 pm Cases and Panel Discussion surgical complication after prolapse surgery Brooke Gurland, MD, Stanford, CA 4. Refine VR technique and improve efficiency James Ogilvie, Jr., MD, Grand Rapids, MI Andrew Stevenson, MD, Brisbane, Australia 4:10 pm Question and Answer 4:30 pm Adjourn

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Saturday, April 24, 2021 1:00 – 4:30 pm 4. Describe different management strategies for pilonidal disease SYMPOSIUM: AIN and HRA: What the 5. Examine the utility and efficacy of cutting Colorectal Surgeon Needs to Know seton for anal fistula CME Credit Hours: 3.5 Co-Directors CNE Credit Hours: 3.5 Stephen Goldstone, MD, New York, NY Self-Assessment Credit: 3.5 Naomi Jay, RN, NP, PhD, San Francisco, CA Anorectal disorders are some of the most 1:00 pm Welcome common pathologies seen in a colon and rectal Stephen Goldstone, MD, New York, NY surgery practice. These entities can have a major impact on patients’ lives sometimes 1:05 pm Introduction to HPV: Scope of the leading to significant morbidity. When Problem Joel Palefsky, MD, San Francisco, CA operating on these complex conditions, including fistula, hemorrhoids, fissures and 1:20 pm Pathology and Cytology and the pilonidal cysts, many options are available to LAST Criteria the surgeon. With the multitude of options, Teresa Darragh, MD, San Francisco, CA how are practitioners making decisions 1:40 pm Fundamentals of HRA regarding operative treatment? When Naomi Jay, RN, NP, PhD, San Francisco, CA controversy exists over the best option, how do we tailor the treatment to the specific patient? 2:00 pm HRA Findings of AIN and Biopsy Patients with these conditions comprise a large J. Michael Berry-Lawhorn, MD, portion of our practice. For example, in 2004, San Francisco, CA the National Institutes of Health noted that the Naomi Jay, RN, NP, PhD, San Francisco, CA diagnosis of hemorrhoids was associated with 3:00 pm HRA Guided Treatment Options and 3.2 million ambulatory care visits, 306,000 Management Algorithms hospitalizations, and two million prescriptions Stephen Goldstone, MD, New York, NY in the United States. In-depth knowledge of Joel Palefsky, MD, San Francisco, CA these disease processes and the various treatment options are essential for proper 4:00 pm Incorporating HRA Into Your Practice management. In this symposium, we will Julian Sanchez, MD, Tampa, FL Rebecca Levine, MD, New York, NY highlight some of these controversies in Joseph Terlizzi, MD, New York, NY treatment and guide practitioners to make choices that may not be in their standard 4:20 pm Question and Answer arsenal. J. Michael Berry-Lawhorn, MD, San Francisco, CA Objectives Teresa Darragh, MD, San Francisco, CA At the conclusion of this session, participants Stephen Goldstone, MD, New York, NY should be able to: Naomi Jay, RN, NP, PhD, San Francisco, CA Rebecca Levine, MD, New York, NY 1. Describe how to operatively manage chronic Joel Palefsky, MD, San Francisco, CA anal fissures Julian Sanchez, MD, Tampa, FL 2. Recognize different treatment paths for Joseph Terlizzi, MD, New York, NY grade III internal hemorrhoids 4:30 pm Adjourn 3. Assess the utility and critically examine the evidence for anal dysplasia screening

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Saturday, April 24, 2021 1:00 – 5:30 pm The session will consist of an introduction and overview of the structure of the mock oral WORKSHOP: Early Career Mock Orals examination and then break into two tracks and More each composed of a Mock Oral Examination *CME Credit Hours: 3.5, Didactic Session and a Mini-Symposium, that will run (This symposium is pre-recorded and available concurrently. The Mock Oral Examinations will to view at your convenience) be conducted in a small group format and are administered by different examiners, with Link to be sent to pre-registered participants critique of the examinees’ performances in a **CME Credit Hours: 2.0 Real Time MOCK Exam format that replicates the actual ABCRS Oral Examination. Questions will be directed to one ** Live interaction with faculty during the tracks participant at a time, so other group members below. may observe their colleagues answer and Track I: 1:00 – 3:00 pm Pacific Time receive critique on scenarios. Scenarios covered CRS Residents/Fellows-in-Training will be those which are heavily tested on the Track II: 3:30 – 5:30 pm Pacific Time certifying oral examination and are commonly Physicians in Practice Applying for encountered in a standard colorectal practice. Board Certification Additionally, the session will also provide feedback on performance and guidance in Registration is Required treatment of these various disease processes by (This course is not intended for General Surgery members who are board-certified already. Residents) The Mini-Symposium consists of presentations Candidate Member Fee: $50 and a panel discussion on topics highly relevant Member Fee: $100 to the audience, such as board review, transition to practice, academic success, transition of Non-Member Fee: $125 careers and financial planning. This mini- Limit: 60 participants per Track symposium will be tailored to each track, which To achieve certification by The American Board was have a slightly different audience, i.e. of Colon and Rectal Surgery (ABCRS), a current ACGME fellows or those physicians in candidate must pass a Written Examination practice applying for board certification. (Part I) and an Oral Examination (Part II). The Objectives Oral Examination is taken once the candidate passes the Written Examination. Its objective is At the conclusion of this session, participants to evaluate candidates’ clinical experience, should be able to: problem-solving ability and surgical judgment, 1. Describe the structure of the oral examination and to ascertain the candidate’s knowledge of 2. Demonstrate the ability to answer colorectal the current literature on colon and rectal oral board style questions in a simulated, high diseases and surgery. Additionally, despite stakes format years of intensive surgical training, most fellows 3. Demonstrate knowledge among colleagues and faculty receive very little instruction on how and learn from other examinees to navigate through the obstacles faced while starting out in practice. The workshop aims to 4. Understand key topics relevant to his or her prepare candidates for these examinations and own career stage address critical needs of current fellows and recent graduates when they are beginning their practices.

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Saturday, April 24, 2021

Early Career Mock Orals and More continued **Live/Real Time Mock Oral Exams Didactic Symposium* Track I - CRS Residents/Fellows-in-Training 1:00 – 3:00 pm Pacific Time Co-Directors Track II - Physicians in Practice Applying for Anuradha Bhama, MD, Chicago, IL Board Certification Jennifer Davids, MD, Worcester, MA 3:30 – 5:30 pm Pacific Time Carrie Y. Peterson, MD, MS, Milwaukee, WI Young Surgeon’s Committee as Examiners: Introduction Christopher Buzas, MD, Danville, PA Jennifer Davids, MD, Worcester, MA Jad Chamieh, MD, Osford, MS Welcome Jessica Cohan, MD, Boston, MA Najjia Mahmoud, MD, Philadelphia, PA Marianne Cusick, MD, Houston, TX R. Scott Dougherty, MD, Baton Rouge, LA How to Prepare for the Written Exam Mark Hanna, MD, Duarte, CA Jennifer Agnew, MD, New York, NY Marjun Philip Duldulao, MD, Los Angeles, CA Things I Wish I Knew in My First Year of Samuel Eisenstein, MD, San Diego, CA Practice Leandro Feo, MD, Boca Raton, FL Tal Raphaeli, MD, Houston, TX Daniel Fish, MD, Springfield, MA John Gahagan, MD, Irvine, CA What No One Ever Teaches You: The Basics of Daniel Galante, MD, Winter Park , FL Billing and Coding Lindsey Goldstein, MD, Gainesville, FL Karen Zaghiyan, MD, Los Angeles, CA Leander Grimm, MD, Mobile, AL Michael Guzman, MD, Indianapolis, IN What Can ASCRS Do for You and What Can Wissam J. Halabi, MD, Davis, CA You Do for ASCRS? Jennifer Kaplan, MD, Minneapolis, MN Kellie Mathis, MD, Rochester, MN Deborah Keller, MD, New York, NY Finances 101 David Kleiman, MD, Burlington, MA Conan Mustain, MD, Little Rock, AR Ziad Kronfol, MD, Baytown, TX Pamela Lee, DM, San Diego, CA Must-Know Topics and Avoiding Pitfalls for the Robert Lewis,MD, Hartford, CT Oral Examination Jonaton Mitchem, MD, Columbus, OH David Row, MD, Phoenix, AZ Eric Nelson, MD, Chattanooga, TN Tal Raphaeli, MD, Humble, TX Building Your Practice and Defining Your Aashish Rajesh, MD, Houston, TX Niche Steven Scarcliff, MD, Birmingham, AL Jennifer Rea, MD, Lexington, KY Karen Sherman, MD, Raleigh, NC How to Make the Most of Your First 5 Years of Vlad Simianu, MD, Seattle, WA Practice Jacquelyn Turner, MD, Atlanta, GA Brian Bello, MD, Washington, DC Gabriela Vargas, MD, MS, Salt Lake City, UT Karen Zaghiyan, MD, Los Angeles, CA Teaching and Mentoring While You are Just Getting Your Own Feet Wet Heather Yeo, MD, MBA, New York, NY How to Navigate Changes in Your Practice: Tips for Success Leandro Feo, MD, Boca Raton, FL

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Daily Schedule Sunday, April 25, 2021 Exhibit Hall Open: 7:00 am – 8:30 pm Industry Representatives available for Live Chat: 12:00 – 1:00 pm Ongoing Video Room: 7:00 am – 8:30 pm ePosters: 7:00 am – 8:30 pm

7:00 – 9:00 am manuscripts of these four papers will be distributed to each symposium participant who SYMPOSIUM: Critical Review SOLD OUT will have the chance to read and critique them of Manuscripts as if they were primary reviewers. During the Link to be sent to pre-registered participants symposium, each participant will be assigned to a small group led by an editorial board CME Credit Hours: 2 member from DC&R. Following an introduction CNE Credit Hours: 2 of the manuscript by the faculty, the editorial board members will facilitate a working Please Note: 8:00 - 9:00 am is live interaction with the faculty. discussion and critique of each manuscript within the small groups. Board members will The peer review process is central to the have access to the original editorial comments continued advancement of surgical knowledge. and the changes that were requested by the Continuous critical review of new manuscripts editors prior to publication to enhance the ensures the best available evidence is discussion. The benefit to each individual disseminated within the surgical community. participant will be maximized with appropriate The volume of new material, the complexity of preparation time prior to the symposium. trial design and the increasingly nuanced conclusions require detailed and systematic Objectives critical review. At the conclusion of this session, participants This symposium is aimed at three groups: should be able to: present and prospective reviewers for Diseases 1. Recognize patient scenarios where of the Colon & Rectum (DC&R), the practicing observational studies are appropriate and surgeon who wants to increase their critical can potentially provide strong evidence appraisal skills and authors who wish to 2. Identify the advantages, limitations and improve their writing skills. It is designed to be proper use of studies using administrative hands on. Through an interactive symposium, databases we will explore the most common study methodologies, identify appropriate questions 3. Recognize the potential for bias and for each method, while identifying the methodological limitations involving advantages, the disadvantages and the randomized controlled trials common mistakes in study conduct, reporting 4. Recall the components of a valuable and conclusions. We will also explore essential comprehensive systematic review and resources for additional learning in this area. meta-analysis Previously published representative papers 5. Apply resources to enhance their critical from the four common methodologies will be appraisal skills identified in advance from Diseases of the Co-Directors Colon & Rectum. Six weeks prior to the Susan Galandiuk, MD, Louisville, KY symposium, the originally submitted unedited David Stewart, MD, Tucson, AZ

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Sunday, April 25, 2021

Critical Review of Manuscripts continued Objectives At the conclusion of this session, participants 7:00 am Introduction Susan Galandiuk, MD, Louisville, KY should be able to: 1. Explain methods to predict neoplastic lesions 7:05 am Observational Studies of the colon and select the best endoscopic Matthew Z. Wilson, MD, Lebanon, NH resection technique 7:17 am Administrative Database Studies 2. Recognize the available enhanced Kristen Crowell, MD, Boston, MA endoscopic visualization techniques 7:29 am Randomized Controlled Trials 3. Describe the indications and uses for Willem Bemelman, MD, PhD, Amsterdam, endoscopic submucosal resection for Netherlands colorectal neoplasia and the associated 7:41 am Systematic Reviews & Meta- learning curve Analyses 4. Explain available techniques for endoscopic Husein Moloo, MD, MBA, Ottawa, Ontario, closure of the bowel wall, stents and Canada hemostatic agents *Live interaction with faculty 7:30 am Introduction 7:53 – Breakout Rooms Kyle Cologne, MD, Los Angeles, CA 9:00 am Each assigned room will cover: 7:35 am The Art of Endoscopic Electro- • Observational Study surgery • Administrative Database Study Jennifer Hrabe, MD, Iowa City, IA • Randomized Controlled Trial 7:50 am Utility of Intraoperative • Systematic Reviews & Meta- Colonoscopy and Interventions Analysis Lea Lowenfeld, MD, New York, NY 9:00 am Adjourn 8:05 am Beyond Poypectomy: EMR, ESD Richard L. Whelan, MD, New York, NY 7:30 – 9:45 am 8:20 am Combined Endo-Laparoscopic SYMPOSIUM: Advanced Endoscopy Surgery (CELS) and Full Thickness CME Credit Hours: 2.25 Laparo-Endoscopic Excision CNE Credit Hours: 2.25 (FLEX) for Complicated Polyps David Rosen, MD, Cleveland, OH There has been significant expansion of new techniques and instrumentation for advanced 8:35 am ELSI (EndoLuminal Surgical endoscopic procedures. These techniques Interventions): ESD and Beyond broaden our ability to perform more complex Uzma D. Siddiqui, MD, Chicago, IL procedures in a much less invasive way. As 8:50 am Quality Metrics and Endoscopy – colorectal surgeons, we are positioned to adopt What do I need to Know, and these techniques and lead in this field. Who’s Watching? Yet as busy practicing surgeons, it is often Margarita Murphy, MD, Charleston, SC difficult to get exposure to state-of-the-art 9:15 am The Future of Endoluminal Surgery techniques. This symposium highlights new David Kleiman, MD, Burlington, MA advanced endoscopic techniques and their applications as well as existing platforms. 9:30 am Panel Discussion and Questions 9:45 am Adjourn

13 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021 8:00 – 9:30 am 8:50 am “There’s a Big Bump Under my Bag!” Diagnosis and Management of Late SYMPOSIUM: The Challenging Stoma Postoperative Stoma Complications CME Credit Hours: 1.5 Virginia Shaffer, MD, Atlanta, GA CNE Credit Hours: 1.5 9:05 am The Bottom of the Barrel: The stoma is the ultimate patient dissatisfier Challenging Case Presentations and and can drive up length of stay, readmissions Panel Discussion Jennifer Beaty, MD, Omaha, NE and complications—and exact even higher rates Michael McGee, MD, Chicago, IL of intangibles such as patient anxiety, cost and frustration. This session was built to better arm 9:30 am Adjourn surgical care teams with resources to help ostomates live a high-quality life even in the 8:00 – 10:00 am most challenging situations. From preoperative SYMPOSIUM: Core Subject Update planning and patient activation to technical considerations of operative construction, and CME Credit Hours: 2 management of common complications, this CNE Credit Hours: 2 session is intended to provide surgeons Self-Assessment Credit: 2 pragmatic, practice-ready advice on helping patients who are experiencing one of the most Maintaining proficiency across a wide array of life-altering events they will ever endure. conditions can be challenging for practicing surgeons particularly when advanced Objectives technologies and treatment options are rapidly At the conclusion of this session, participants changing. The Core Subject topics provide should be able to: expertise and a framework to explore the current 1. Explain principles of pre-operative stoma site understanding of a particular topic for surgeons marking seeking the opportunity to add to their knowledge base in critical areas and/or those 2. Incorporate “best practice” stoma creation conditions that are not seen routinely. principles 3. Diagnose and manage common Objectives postoperative stoma-related complications At the conclusion of this session, participants should be able to: Co-Directors Jennifer Beaty, MD, Omaha, NE 1. Describe the evaluation, management Michael McGee, MD, Chicago, IL options, and complications associated with anal fissures and hemorrhoids 8:00 am Introduction 2. Explain the pathophysiology and treatment Jennifer Beaty, MD, Omaha, NE options for rectal prolapse, intussusception, 8:05 am An Ounce of Prevention: and solitary rectal ulcer and to offer patients Preoperative Patient Preparation for a range of nonsurgical and surgical Stoma Creation treatment options Crina Floruta, RN, NP, Cleveland, OH 3. Review the literature for the current medical 8:20 am “It Won’t Reach!” Intraoperative and surgical treatment of ulcerative colitis Considerations for Stoma Creation 4. Recognize strategies for the management of Peter Cataldo, MD, Burlington, VT colorectal trauma and colonic volvulus 8:35 am “It Keeps Leaking and I’m Really 5. Explore advances in the management of Dizzy!” Diagnosis and Management benign and malignant anal tumors and of Early Postoperative Stoma retrorectal tumors Complications Samantha Hendren, MD, MPH, Ann Arbor, MI

14 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021 Satish Rao3, Donato F Altomare4, Adil E Bharucha5, Rebecca Burgell6, William D Core Subject Update continued Chey7, Guiseppe Chiarioni8, Phil Dinning9, Anton Emmanuel10, Ridzuan Farouk11, Director Richelle JF Felt-Bersma12, Kee Wook Mukta Krane, MD, Seattle, WA Jung13, Anthony Lembo14, Allison Malcolm15, Ravinder K Mittal16, Franҫois 8:00 am Introduction Mion17, Seung-Jae Myung13, P Ronan Mukta Krane, MD, Seattle, WA O’Connell18, Christian Pehl19, Jose María 20 21 8:05 am Remes Troche , R Matthew Reveille , Anal Fissure and Hemorrhoids 22 23 Jennifer Irani, MD, Boston, MA Carolynne J Vaizey , Veronique Vitton , William E Whitehead24, Reuben K Wong11, 8:24 am Discussion S Mark Scott1 (All members of the International Anorectal Physiology 8:28 am Prolapse/Intussusception/Solitary Working Group). 1Queen Mary, University Rectal Ulcer of London, United Kingdom; 2University Margarita Murphy, MD, Mt. Pleasant, SC of Zürich, Switzerland; 3Medical College 4 8:47 am Discussion of Georgia, USA; University Aldo Moro of Bari, Italy; 5Mayo Clinic, USA; 6Monash 8:51 am Ulcerative Colitis University and Alfred Health, Australia; Jonathan Abelson, MD, Burlington, MA 7Michigan Medicine, USA; 8AOUI Verona, Italy; 9Flinders University, Australia; 9:10 am Discussion 10University College London, UK; 11National 9:14 am Trauma, Colonic Volvulus University Hospital Singapore, Singapore; Cary Aarons, MD, Philadelphia, PA 12UMC Amsterdam, Netherlands; 13Asan Medical Center, Korea; 14Harvard Medical 9:33 am Discussion School, USA; 15University of Sydney and 9:37 am Benign and Malignant Anal Tumors/ Royal North Shore Hospital, Australia; 16 17 Retrorectal Tumors University of California, USA, Université Marcia Russell, MD, Los Angeles, CA de Lyon et Hospices Civils de Lyon, France; 18University College Dublin, 9:46 am Discussion Ireland; 19Krankenhaus Vilsbiburg and Technical University Munich, Germany; 10:00 am Adjourn 20University of Veracruz, Mexico; 21University of Colorado, Denver VAMC, 8:00 – 10:00 am USA; 22St Mark’s Hospital and Imperial PLENARY ABSTRACT SESSION I: Benign College London, UK; 23AP-HM - Aix- Marseille University, France; 24University Anorectal Disease and Pelvic Floor of North Carolina at Chapel Hill, USA. CME Credit Hours: 2 8:16 am SP3 Outcomes of an Algorithmic, 8:00 am Introduction Multidisciplinary Approach to Robert Goldstone, MD, New York, NY Rectourethral Fistula Repair; Amber Traugott, MD, Columbus, OH A Pre- and Post-Intervention Quasi- Experimental Study 8:08 am ACPGBI Travelling Fellow J. Hayden*1, W. Boysen1, U. Kowalik1, B. SP1 The International Anorectal Inouye1, J. Migaly1, C. Mantyh1, D. Physicology Working Group Erdmann1, A. Peterson1; 1Durham, NC (IAPWG) Recommendations: 8:24 am SP4 Risk of Anal Fistula Recurrence Standardized Testing Protocol in Immunocompromised and the London Classification Patients: A Case-control Study for Disorders of Anorectal 1 1 Function J.A. Nguyen* , A. Cioci , M.S. Meece1, F. Marchetti1, L. Sands1, V. Hui1; 1Miami, FL Emma V Carrington1, Henriette Heinrich2, Charles H Knowles1, Mark Fox2,

15 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021

Benign Anorectal Disease and Pelvic Floor 9:20 am SP11 Multi-institutional Safety continued Profile of Minimally Invasive Ventral Rectopexy in the 8:32 am SP5 Endorectal Advancement Flap United States with Fibrin Glue for Treatment G. Chitragari*1, G.B. Filosa1, J. Ogilvie1; of Trans-sphincteric Fistulas 1Grand Rapids, MI S.G. Lee*1, A. Ferrara1, J. Gallagher1, P. Williamson1, S. DeJesus1, R. Mueller1, J. 9:28 am SP12 Working Towards a Universal Karas1, M. Ferrara1; 1Orlando, FL Language: A Preliminary Report from the ASCRS Pelvic 8:40 am SP6 Outcomes of Virtual Visits for Floor Disorders Consortium on Anorectal Complaints During Pelvic Organ Prolapse (POP) the COVID-19 Pandemic Physical Exam (PE) Workgroup 1 1 1 K.K. Thanki* , J. Ayscue , M. Bayasi , S. M. Varma*1, D.S. Keller2, C. Grimes3, L. 1 1 1 1 Berkey , J. Fitzgerald , A. Kata , B. Bello ; Bordeianou4, E. PE Workgroup5; 1San 1 Washington, DC Francisco, CA, 2Columbia, SC, 3Valhalla, 4 5 8:48 am SP7 Does Adding a Fissurectomy to NY, Boston, MA, Multiple, MA Botox Injection Increase 9:36 am SP13 Does Concomitant Pelvic Success Rate or Just Cost? Organ Prolapse Repair at the K. Winter*1, M. Porter1, K. Quinn1, time of Rectopexy Impact T. Savolt1, N. Sanchez1; 1Wichita, KS Rectal Prolapse Recurrence Rates? A Retrospective Review 8:56 am SP8 Anorectal Abscess: The of a Prospectively Collected High-Cost of Unguided Care Pelvic Floor Disorders 1 1 1 V.C. Simon* , J.H. Frankel , B.C. Chapman , Consortium Quality 1 1 1 S.S. Michael , E. Birnbaum , J.D. Vogel ; Improvement Database 1Aurora, CO L. Bordeianou*1, J. Ogilvie2, B. Gurland3, P. 9:04 am SP9 Implementation of a QI Database Participants4; 1Boston, MA, Multimodal Enhanced 2Grand Rapids, MI, 3Palo Alto, CA, Recovery Protocol in 4Multiple, ME Ambulatory Anorectal Surgery: 9:44 am SP14 The Prevalence of Mental A Randomized Trial Health Disorders in Young 1 2 1 L. Yao* , A. Parrish , P. Fleshner , K. Patients with Rectal Prolapse 1 1 2 Zaghiyan ; Los Angeles, CA, Los Gatos, CA A. Whitlock*1, M.N. Fakler1, B.G. Allar1, T.E. 1 1 1 9:12 am Cataldo , K.T. Crowell , A. Fabrizio , E. SP10 Opioid Prescription Guidelines 1 1 for Anorectal Surgery - The Messaris ; Boston, MA Answer to a Missing Piece in 10:00 am Adjourn the Current Opioid Literature A. Althans*1, K. Hrebinko1, O. Olaitan1, 10:00 – 10:15 am M. Ettore1, J.Celebrezze1, D. Medich1, J. Holder-Murray1; 1Pittsburgh, PA Virtual Engagement Break, Join us at ASCRS Central in the Exhibit Hall!

16 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021 10:15 am – 12:00 pm 10:40 am SP23 An Improvement in Assessment of Response to PLENARY ABSTRACT SESSION II: Preoperative Rectal Cancer Chemoradiotherapy for Rectal CME Credit Hours: 1.75 Cancer Using MRI and Multigene Biomarker 10:15 am Introduction I. Park*1, E. Cho*1, Y. Kim1, S. Hong1, S. Lim1, C. Mary Kwann, MD, Los Angeles, CA Yu1, J. Kim1; 1Seoul, Korea (the Republic of) Bradford Sklow, MD, Cleveland, OH 10:48 am SP24 Total Neoadjuvant Therapy 10:16 am SP20 Association of Patient, Tumor, Significantly Increases Clinical and Operative Characteristics Complete Response with TME Intactness in Rectal R.L. Rettig*1, B.W. Beard1, J.J. Ryoo1, Surgery: Review of a Multi- R.A. Parker1, M. Tam1, V. Attaluri1; institutional Database 1Los Angeles, CA M. Mohammed*1, K.M. Reitz1, K. Hrebinko1, 10:56 am SP25 Trajectory of Low Anterior S. Regenbogen2, A. Hawkins3, A. Ejaz4, P. Bauer5, G. Balch6, J. Holder-Murray1; Resection Syndrome After 1Pittsburgh, PA, 2Ann Arbor, MI, 3Nashville, Restorative Proctectomy for TN, 4Columbus, OH, 5St. Louis, MO, Rectal Adenocarcinoma 6Atlanta, GA F. Alrashid*1, S. Robitaille1, P. Charlebois1, B.L. Stein1, L.S. Feldman1, J.F. Fiore Jr.1, 10:24 am SP21 Perineural Invasion is a A.S. Liberman1, L. Lee1; 1Montreal, QC, Reliable Predictor of Canada Recurrence and Response in Rectal Cancer Patients Who 11:04 am SP26 Transanal Endoscopic Underwent Curative Resection Microsurgery versus Total After Preoperative Mesorectal Excision in ypT0-1 Chemoradiotherapy Rectal Cancer after Pre- Y. Kim*1, C. Kim1, J. Lee1, Y. Yoon1, I. Park1, operative Radiochemotherapry: S. Lim1, C. Yu1, J. Kim1; 1Seoul, Korea (the Post-operative morbidity, Republic of) Functional Results, and Long- term Oncologic Outcome 10:32 am SP22 Post-treatment Rectal MRI for G. Rizzo*1, D.P. Pafundi1, F. Sionne1, C. Rectal Cancer Underestimates Mattana1, G. Pietricola1, R. Aversa1, L. Distance to Circumferential D’Agostino1, C. Coco1; 1Cerveteri, Italy Resection Margin (CRM) Particularly in Anterior Tumors 11:12 am SP27 Management and Outcomes of – A Comparison with Whole- Pathologic Upstaging of mount Pathological Specimens Clinical Stage 1 Rectal Cancers J.B. Yuval*1, H.M. Thompson1, C. Firat1, F.S. A. Lussiez*1, S.J. Rivard1, P. Bauer2, K. Verheij1, M. Widmar1, J. Shia1, M.J. Gollub1, Edwards-Hollingsworth3, S. Abdel-Misih4, J. Garcia-Aguilar1; 1New York, NY K. Hrebinko5, G. Balch6, L. Maguire1; 1Ann Arbor, MI, 2St. Louis, MO, 3Nashville, TN, 4Columbus, OH, 5Pittsburgh, PA, 6Atlanta, GA

17 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021 10:15 – 11:45 am

Rectal Cancer continued SYMPOSIUM: Management of 11:20 am SP28 Evaluation of Magnetic Diverticulitis. Is There Anything We Resonance – Tumor Regression Were Taught That is True? Grade for Prediction of CME Credit Hours: 1.5 Pathological Response to CNE Credit Hours: 1.5 Neoadjuvant Treatment in Rectal Cancer Self-Assessment Credit: 1.5 I. Sapci*1, A. Purysko1, M. Kalady1, E. The management of diverticulitis has changed Gorgun1, M.A. Valente1, S. Steele1, C. over the past decades. In this symposium, we Delaney1, D. Liska1; 1Cleveland, OH will discuss the shifts in the treatment paradigm of diverticulitis. We will review the evidence 11:28 am SP29 In Patients with Rectal Cancer behind the new guidelines for the treatment of who are Treated with Total this prevalent disease. Neoadjuvant Therapy, Rectal Resection May Be Superfluous Objectives in More than One-Third of At the conclusion of this session, participants Patients. should be able to: B.C. Chapman*1, S. Lai1, T. Friedrich1, E. Birnbaum1, M.D. McCarter1, J.D. Vogel1; 1. Explain the role of antibiotics in acute 1Aurora, CO diverticulitis 2. Discuss the role of surgical management of 11:36 am SP30 Deep Learning Based acute and chronic diverticulitis Assessment of Rectal Tumors after Total Neoadjuvant 3. Discuss minimal invasive tips and tricks for Therapy acute diverticulitis H.M. Thompson*1, R. Jimenez-Rodriguez2, 4. Recognize options for medical management J. Garcia-Aguilar1, H. Veeraraghavan1; 1New of diverticulitis York, NY, 2Sevilla, Spain Co-Directors 11:44 am SP31 Anastomotic Leak Does Not Jason Hall, MD, MPH, Boston, MA Affect Survival in Rectal Mehraneh Dorna Jafari, MD, Irvine, CA Cancer Patients Receiving Neoadjuvant Therapy: An 10:15 am Introduction Jason Hall, MD, MPH, Boston, MA Analysis of the US Rectal Mehraneh Dorna Jafari, MD, Irvine, CA Cancer Consortium K. Hrebinko*1, K.M. Reitz1, S. Regenbogen2, 10:20 am What is the Best Medical Therapy for A. Hawkins3, A. Ejaz4, P. Bauer5, G. Balch6, the Treatment of Acute J. Holder-Murray1; 1Pittsburgh, PA, 2Ann Noncomplicated Diverticulitis? Arbor, MI, 3Nashville, TN, 4Columbus, OH, Fergal Fleming, MD, Rochester, NY 5St. Louis, MO, 6Atlanta, GA 10:30 am Do All Complicated Presentations of 11:52 am SP32 The Efficacy of Adjuvant Diverticulitis Require Surgery? Chemotherapy on Oncologic Dana Hayden, MD, Chicago, IL Outcomes in Stage 2A Rectal 10:42 am When is Enough, Enough? Surgical Cancer Patients Management of Recurrent H. Ryu*1, J. Lee1; 1Seoul, Korea (the Uncomplicated Diverticular Disease Republic of) Sean Langenfeld, MD, Omaha, NE 12:00 pm Adjourn 10:52 am Tips and Tricks for the Minimally Invasive Management of Emergency Resections for Diverticulitis Lynn O’Connor, Huntington, NY

18 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021

Management of Diverticulitis continued pain management and functional medicine together for evaluation and holistic patient 11:12 am Is there Still a Role of for the treatment. Hartmann Procedure in the Management of Hinchey III and IV Objectives Diverticular Disease? At the conclusion of this session, participants Christy Cauley MD, MPH, Boston, MA should be able to: 11:23 am Case Presentations 1. Evaluate patients with pelvic floor disorders Jason Hall, MD, MPH, Boston, MA, by using data collection tools and pelvic Mehraneh Dorna Jafari, MD, Irvine, CA floor physiology tests, such as anorectal 11:45 am Adjourn manometry, ultrasound and defecography 2. ​Describe treatment pathways for common 10:15 – 11:45 am pelvic floor disorders: constipation, prolapse, SYMPOSIUM: Pelvic Floor: The Great incontinence Falling Out. 3. Explain the necessity for multidisciplinary collaboration in treating patients with pelvic CME Credit Hours: 1.5 floor disorders. Identify the specialists and CNE Credit Hours: 1.5 care providers that are necessary to optimize patient outcomes In the last decade, there has been a tremendous increase in new technologies, new 4. Develop a plan for organizing their own surgical techniques and new imaging modalities virtual or real pelvic floor center that impact the care of patients with pelvic Co-Directors floor disorders. Subsequently, the treatment Russell Farmer, MD, Louisville, KY pathways for common disorders such as Sarah Vogler, MD, MBA, Cleveland, OH constipation, prolapse, and incontinence have changed drastically. Approximately one 10:15 am Introduction quarter of all women suffer from at least one Russell Farmer, MD, Louisville, KY pelvic floor disorder in their lifetime. Urinary Sarah Vogler, MD, MBA, Cleveland, OH incontinence is the most common, with a 10:20 am Sacral Neuromodulation in 2021 – prevalence of 15-17%, whereas fecal What’s New? incontinence affects approximately 9% of adult Bidhan Das, MD Houston, TX women. Pelvic organ prolapse has an estimated prevalence of 3-8%, and 20% of women 10:35 am The Mystery Behind Rectoceles undergo stress urinary incontinence or prolapse Karmjit Koko Singh Khanduja, MD, repair surgery by the age of 80. As the aging Columbus, OH population grows, the number of women with 10:50 am Obstructive Defecation – Has the pelvic floor dysfunction will increase Evaluation and Care Pathway substantially and the demand for care of these Changed? disorders will continue to grow. Madulika Varma, MD, San Francisco, CA The need to work across subspecialties in a 11:05 am Ventral Rectopexy – When and multidisciplinary fashion is crucial to improving Why is this an Option? patient satisfaction and outcomes related to Kenneth Loh, MD, San Francisco, CA pelvic floor disorders. Successful and safe patient outcomes, and minimization of 11:20 am Stump The Experts – A Review of complications, depends on appropriate training Difficult Cases and collaboration in the care of pelvic floor Panel disorders. A multidisciplinary approach brings 11:35 am Question and Answer practitioners in urology, gynecology, colorectal, gastroenterology, physical therapy, radiology, 11:45 am Adjourn

19 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021 10:15 – 11:45 am 10:45 am QS6 Acceptability of Telemedicine for Routine Colorectal Care QUICK SHOTS I: Quality, Cost and C.M. Sokas*1, T.E. Cataldo1, K.T. Crowell1, Education E. Messaris1, A. Fabrizio1; 1Boston, MA CME Credit Hours: 1.5 10:50 am QS7 Outcomes of Open, 10:15 am Introduction Laparoscopic, and Robotic Michael Guzman, MD, Indianapolis, IN Colectomy in the Veterans Jennifer Paruch, MD, New Orleans, LA Health Administration: A 2008-2019 National Case 10:20 am QS1 Impact of Resident Review Involvement on Surgeon T.J. Holleran*1, M.A. Napolitano1, Productivity in Outpatient A. Sparks1, F. Brody1, J. Duncan1; Anorectal Procedures 1Washington, DC S. Whelan*1, M. Abdel-Rasoul1, D. Koller1, M. Magallanes1, S.S. Lansing1, J. Chen1, 10:55 am QS8 Enhanced Recovery Pathways S. Husain1; 1Columbus, OH Should be Mandatory in Elective Colorectal Operations 10:25 am QS2 Gender Differences in A. Talukder*1, D. Davenport1, A. Bhakta1, Reimbursement among J.A. Patel1; 1Lexington, KY Colorectal Surgeons in the United States 11:00 am QS9 Development and Validation of N. Sela*1, A. Hoffman1, I. Ramos1, a Colorectal Operative Severity B. Anderson1, S. Merani1, A. Stefanou2; Score: An Independent 1Omaha, NE, 2Detroit, MI Predictor of Postoperative Outcomes 10:30 am QS3 Fewer Complications Seen in 1 1 1 Rectal Cancer Patients Treated J. Mostales* , C. Qin , o. Owudunni , A. Gabre-Kidan1, S. Gearhart1; 1Towson, MD at National Accreditation Program for Rectal Cancer 11:05 am QS10 Ketamine Intolerance in (NAPRC) Sites Versus Enhanced Recovery after Non-NAPRC Sites. Surgery patients undergoing P. Johnson*1, M. Parikh1, J. Wright1, Colorectal Operations J. Lucking1, J.R. Monson1; 1Orlando, FL S. Stringfield*1, C. Keirsyn1, B. Burgess1, L. Dosselman1, A. Waddimba1, A. Fichera1, 10:35 am QS4 Cost Comparison of W. Peters1, K. Wells1; 1Dallas, TX Colectomies for Colon Cancer Performed by General or 11:10 am QS11 Colorectal Surgery During Colorectal Surgeons COVID: Sicker Patients, Similar I.C. Le Leannec*1, C.C. Jensen2; 1New York, Outcomes, More Readmissions NY, 2Minneapolis, MN D. Wong*1, C.M. Sokas1, T.E. Cataldo1, A. Fabrizio1, K.T. Crowell1, E. Messaris1; 10:40 am QS5 Modified Frailty Index 1Boston, MA is a Good Predictor of Postoperative Venous 11:15 am QS12 Acute Kidney Injury is a Thromboembolism Incidence Common and Significant in Colorectal Surgery Patients Complication After Ileostomy J. Ali Asgar*1, C. D’Adamo1, J. Wolf1, Formation S. Svoboda1, G. Metoyer1, A. Mavanur1; A. Loria*1, C.F. Justiniano1, J. Speranza1, 1Baltimore, MD C. Cellini1, R. Salloum1, L.K. Temple1, F. Fleming1; 1Rochester, NY

20 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021

Quality, Cost and Education continued 1:00 – 1:30 pm 11:20 am QS13 Comparison of 90-Day Welcome and Opening Announcements Outcomes for Robotic and Laparoscopic Colorectal 1:00 pm Neil Hyman, MD, Chicago, IL Surgery President, ASCRS S.S. Pervaiz*1, Y. Hung1, C. D’Adamo1, 1:05 pm Konstantin Umanskiy, MD, Chicago, IL A. Mavanur1, S. Svoboda1, J. Wolf1; Program Chair 1Baltimore, MD 1:10 pm Nitin Mishra, MD, Phoenix, AZ Awards Chair 11:25 am QS14 Association of Medicaid Expansion with Earlier Rectal 1:15 pm Ronald Bleday, MD, Boston, MA Cancer Stage at Diagnosis President, Research Foundation of M. Lin*1, C.M. Foglia2, S. Raman1, J. Franko1, the ASCRS S.Y. Chao2; 1Des Moines, IA, 2Flushing, NY 1:20 pm Michael Arvanitis, MD, Eatontown, NJ Public Relations Chair 11:30 am QS15 Discharge Prescribing Protocol Decreases Opioids in 1:25 pm Sean Langenfeld, MD, Omaha, NE Circulation and Does Not Social Media Chair Increase Refills after Colorectal 1:30 pm Adjourn Surgery P.S. Bauer*1, A. Damle1, J. Abelson1, 1:30 – 2:15 pm E. Otegbeye1, R. Smith1, S. Glasgow1, P. Wise1, S.R. Hunt1, M. Mutch1, M. Silviera1; Humanities in Surgery Lectureship 1St. Louis, MO CME Credit Hours: .75 11:35 am Discussion and Commentary CNE Credit Hours: .75 James Fleshman, Jr., MD, Dallas, TX Code Status: Cruelty or Kindness? Michael Guzman, MD, Indianapolis, IN Jennifer Paruch, MD, New Orleans, LA Piroska Kopar, MD Washington University in St. Louis, Assistant 11:45 am Adjourn Professor Center for Humanism and Ethics in Surgical 12:00 – 1:00 pm Specialties, Director Virtual Engagement Break, Join us St. Louis, MO at ASCRS Central in the Exhibit Hall! Introduction: John Griffin, MD Visit the exhibit hall and interact with exhibitors or drop by ASCRS Central to enjoy some fitness 2:15 – 3:00 pm bytes! Don’t forget to visit the Networking Memorial Lectureship Honoring David Lounge where you can chat with your Margolin, MD colleagues. CME Credit Hours: .75 Industry Representatives available for Live Chat: 12:00 – 1:00 pm CNE Credit Hours: .75 Industry Education Booth – Live Symposium The Doctor Who Failed: An Anthology • Takeda Pharmaceuticals Industry Education of Personal Experiences Symposium Steven Shackford, MD Professor and Chairman Emeritus University of Vermont College of Medicine San Diego, CA Introduction: Charles Whitlow, MD

21 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021 3:00 – 3:15 pm 3. How can I give difficult feedback effectively and without watching my teaching Virtual Engagement Break, Join us evaluations plummet? What is implicit bias at ASCRS Central in the Exhibit Hall! and could it be affecting me? Co-Directors 3:15 – 4:30 pm Emily Huang, MD, MEd, Columbus, OH SYMPOSIUM: Duty Hours and Evaluation Jesse Moore, MD, Burlington, VT Forms and Robots, Oh My! A 3:15 pm Introduction Levelheaded Approach to Emily Huang, MD, MEd, Columbus, OH Intraoperative Teaching 3:20 pm Getting Them to Put Down the CME Credit Hours: 1.25 Phone: Engaging Learners in the CNE Credit Hours: 1.25 Operating Room Anjali Kumar, MD, Spokane, WA This symposium is targeted to surgeons who regularly work with surgical trainees. It will 3:30 pm Striking the Balance: Autonomy in provide attendees specific skills to maximize the OR the effectiveness of their intraoperative Nell Maloney Patel, MD, New Brunswick, NJ teaching while keeping patients safe and the 3:45 pm Head in the Console: Tips for OR on time. Teaching Robotic Surgery Rebecca Hoffman, MD, MSCE, Danville, PA Objectives At the conclusion of this session, participants 3:55 pm How am I Doing? Providing should be able toanswer: Feedback Amy Halverson, MD, Chicago, IL 1. Why is it so difficult to verbalize something as simple as a retraction angle when I’m not 4:10 pm Question & Answer doing it myself (and how can I find the 4:30 pm Adjourn words)? 2. How do I know that I can trust the resident with this portion of this case, especially if it’s robotic and I must relinquish control completely?

22 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021 3:15 – 4:45 pm 3:30 pm Radiation: When is Less More Bashar Safar, MD, Baltimore, MD SYMPOSIUM: Paradigm Shifts in the 3:45 pm Chemotherapy: Options and Diagnosis and Neoadjuvant Treatment Outcomes of Rectal Cancer Maria Widmar, MD, MPH, New York, NY CME Credit Hours: 1.25 4:00 pm Putting it All Together: Matching the CNE Credit Hours: 1.25 Tool with the Goal Eric Dozois, MD, Rochester, NY Neoadjuvant therapy has been a well- established component of rectal cancer 4:15 pm Case Presentation and Question and treatment. Increasing understanding of the Answer heterogeneity of rectal cancer has led to the Matthew Silviera, MD, St. Louis, MO recognition that a one-size-fits-all neoadjuvant 4:30 pm Adjourn regimen is suboptimal. Recently, a variety of neoadjuvant regimens have been investigated. 3:15 – 4:45 pm This symposium will provide surgeons with a comprehensive understanding of the oncologic PLENARY ABSTRACT SESSION III: outcomes and toxicity profiles associated with Colorectal Cancer and Other Neoplasia the various regimens and to provide a CME Credit Hours: 1.5 framework for tailoring neoadjuvant therapy to an individual patient’s tumor. 3:15 pm Introduction John Byrn, MD, Ann Arbor, MI Objectives Seth Felder, MD, Tampa, FL At the conclusion of this session, participants should be able to: Killingback Award Winner 3:17 pm SP35 Establishing and Characterising 1. Recognize radiographic features that a Panel of Human Anal SCC correlate with favorable vs. unfavorable Cell Lines prognosis Glen R. Guerra1-4, Joseph C. Kong MS1-4, 2. Describe the key distinguishing features Matthew Read 2-4, David S Liu 2-4, associated with short vs. long course pelvic Rosemary M. Millen2,3, Shienny Sampurno3, radiation Vignesh Narasimhan1-4, Toan D Pham2-4, 3. Explain the different neoadjuvant Sara Roth3, Maria-Pia Bernardi1, Robert G. chemotherapy regimens and their side Ramsay2-4, Wayne A. Phillips1-4, Alexander effects G. Heriot1,2,4; 1Department of Surgery; 2Sir Peter MacCallum Department of Co-Directors Oncology, University of Melbourne; Y. Nancy You, MD, Houston, TX 3Division of Cancer Research, 4Division of Matthew Silviera, MD, St. Louis, MO Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia 3:15 pm Introduction- Defining the Goal and Understanding the Trade-offs 3:25 pm SP36 Improved Survival in Patients Y. Nancy You, MD, Houston, TX Over Age 75 with FIT-detected Colorectal Cancer 3:20 pm Tools for Risk Stratifying Rectal C. Cahill*1, M.E. Lipson1, T. Maclean1, C. Cancers Wong2, A. Afzal1, S. Roen1, W. Buie1; Marc Gollub, MD, New York, NY 1Calgary, AB, Canada, 2Edmonton, AB, Canada

23 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Sunday, April 25, 2021

Colorectal Cancer and Other Neoplasia 4:13 pm SP42 A Prospective, Multicenter Trial continued of Circumferential Radiofrequency Ablation 3:33 pm SP37 Activation of the Urokinase- (cRFA) of Anal High-grade plasminogen System is Squamous Intraepithelial Associated with Postoperative Lesions (HSIL) Nodal Recurrence in a Mouse S.E. Goldstone*1, J. Terlizzi1, R.A. Levine2, Colorectal Cancer Resection P. Tobia2, B. Pereira Vera1; 1New York, NY, 1 1 1 J. Vigneswaran* , H. Koo , R. Morgan , 2Bronx, NY L. Alpert1, J.C. Alverdy1, O. Zaborina1, B.D. Shogan1; 1Chicago, IL 4:21 pm SP43 Impact of Frailty on Long-term Survival in Patients with 3:41 pm SP38 Do Immune Inflammatory Colorectal Cancer Markers Correlate with Anal J.A. Dressler*1, K.T. Crowell1, A. Fabrizio1, Dysplasia and Anal Cancer Risk T.E. Cataldo1, E. Messaris1; 1Boston, MA in Patients Living with HIV? J. Stem*1, Q. Yang1, E. Carchman1, 4:29 pm SP44 Ileal Pouch-Anal Anastomosis R. Striker1, C. Geltzeiler1; 1Madison, WI is more “Desmoidogenic” than Ileorectal Anastomosis In 3:49 pm SP39 Prognostic Value of CEA to Patients with Familial Maximum Tumor Diameter Adenomatous Polyposis Ratio in Patients with Stage II J. Sommovilla*1, D. Liska1, M. Kalady1, Colorectal Cancer B. Sklow1, S. Steele1, C. Burke1, B.H. Leach1, 1 1 1 1 1 X. Li* , m. xie , Z. Xiong , Y. Chen , L. Jin , J. Church1; 1Cleveland, OH P. Lan1, L. Lian1; 1Guangzhou, Guangdong, China 4:37 pm SP45 Tumor Genotypes Account for Survival Differences in Right 3:57 pm SP40 The Effects of Routine MMR and Left-sided Colon Cancers Testing on the Management of T. Ward*1, C.E. Cauley1, C. Stafford1, R.N. Patients with Colorectal Goldstone1, L. Bordeianou1, H. Kunitake1, Cancer D. Berger1, R. Ricciardi1; 1Boston, MA S.J. Rheinhardt*1, P. Pacheco1, J. Rakinic1, N. Engelking1, M. Brandt1; 1Springfield, IL 4:45 pm Adjourn

4:05 pm SP41 Germline Cancer Risk Profiles 6:30 – 8:30 pm of Young-Onset Colorectal Cancer Patients: Findings From ASCRS Welcome Reception: A Universal Germline Testing ASCRS “TOGETHER IN SPIRIT” and Tele-Genetics Program 1 1 1 Tonight’s welcome reception will be held in the Y. You* , J. Moskowitz , M. Mork , Networking Lounge starting at 6:30 pm which M. Rodriguez-Bigas1, B.K. Bednarski1, will feature an exhilarating performance by the C. Messick1, M.M. Tillman1, J.M. Skibber1, D. Renaud1, S. Nguyen1, S. Kopetz1, E. Vilar band Green 14! Guaranteed, you will want to Sanchez1, G.J. Chang1; 1Houston, TX put on your dancing shoes! OR, join sommelier Christian Sparkman for a wine tasting. You should have registered for this in advance to participate with the specific wines, but all are welcome to drop in. And….calling all ASCRS talent!!!! Join your ASCRS colleagues for “ASCRS Got Talent" To join, please go to the Networking Lounge.

24 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Daily Schedule . Monday, April 26, 2021 Exhibit Hall Open: 7:00 am – 6:45 pm Industry Representatives available for Live Chat: 11:30 am – 1:00 pm Ongoing Video Room: 7:00 am – 6:45 pm ePosters: 7:00 am – 6:45 pm

7:00 – 8:00 am Objectives At the conclusion of this session, participants LGBTQ+ and Allies Virtual Meet-up should be able to: Open to all registered attendees 1. Discuss management of pouch This meet-up is open to all meeting registrants complications, including fistulas, leaks, pre and is intended to provide an opportunity for pouch stenosis and functional problems all ASCRS members to interact with society 2. Develop an operative approach to complex members who are members of the LGBTQ+ and Crohn’s disease, including stricturoplasty, Allies community. Join us to network and gain a management of the mesentery, bowel better appreciation of the aspects of the preserving surgery, and fistula management practice of colon and rectal surgery pertinent 3. Explain management options for complex to both physicians and patients who are perianal disease in IBD members of the LGBTQ+ and Allies community. Co-Directors Facilitated by: Helen MacRae, MD, Toronto, ON, Canada Alexander Sender Liberman, MD, Stanford, CA Randolph Steinhagen, MD, New York, NY Samantha Quade, MD, Everett, WA Kirstin Wilkins, MD, Edison, NJ 7:00 – 8:00 am MTP-M2 Anorectal SOLD OUT Meet the Professor Roundtables CME Credit Hours: 1 Please bring cases you would like to discuss in MTP-M1 Inflammatory addition to the topics below for discussion Bowel Disease SOLD OUT during this Meet the Professor Roundtable. CME Credit Hours: 1 1. Management of Grade 2-3 internal This roundtable will discuss complex IBD cases, hemorrhoids including management of pouch related 2. Management of trans-sphincteric anal fistulas complications, intraoperative management of and rectovaginal fistulas complex Crohn’s disease and management of 3. Management of Paget’s disease perianal disease in IBD. Objectives Please bring specific cases you would like to discuss with the experts. At the conclusion of this session, participants should be able to: 1. Explain to patients the options including risks and benefits for management of symptomatic Grade 2-3 internal hemorrhoids

25 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021

Meet the Professor Roundtables continued 7:30 – 9:15 am 2. Determine appropriate evaluation and PLENARY ABSTRACT SESSION IV: Quality discuss management alternatives for patients with trans-sphincter anal fistulas or Cost and Education rectovaginal fistulas CME Credit Hours: 1.75 3. Select candidates for operative and non- 7:30 am Introduction operative care for perianal Paget’s disease Aneel Damle, MD, Minneapolis, MN Co-Directors Elise Lawson, MD, Madison, WI Stephen Gorfine, MD, New York, NY 7:31 am MP1 The Impact of an Enhanced Ann Lowry, MD, Minneapolis, MN Recovery After Surgery Bruce Orkin, MD, Kissimmee, FL Program in a Non-Academic MTP-M3 Colorectal Cancer SOLD OUT Hospital System K.A. Beiermeister*1, M.J. Worsey1, CME Credit Hours: 1 C. Chieco1; 1La Jolla, CA Although operative principles are essentially 7:38 am MP2 Association Between Ileostomy stable, the timing, approach and Creation, Postoperative Acute multidisciplinary care of colorectal cancer is a Kidney Injury, and Progression moving target. In this session, we will review to Chronic Kidney Disease principles and discuss translation of new data after Rectal Cancer Surgery: into clinical care. The discussion will be built A Propensity-score Matched around and in response to audience-presented Analysis complex colorectal cancer cases. Q. Teo*1, D. Chua1, W.J. Tan1, N. Syn1, Objectives S. Chew1, C. Tang1, M. Chew1; 1Singapore, At the conclusion of this session, participants Singapore should be able to: 7:46 am MP3 Pelvic 3D Modeling for Rectal 1. Recall ongoing principles of colorectal Cancer and Complex Fistula in cancer operative management through any Ano approach C. Koerner*1, A. Bastawrous1; 1Seattle, WA 2. Build and maintain a multidisciplinary team 7:54 am MP4 Antiseptic Skin Preparation for care Agents to Prevent Surgical Site 3. Respond to unexpected intra-operative Infection in Colorectal Surgery: findings A Three-armed Randomized Clinical Trial Co-Directors F.S. Reid*1, B. Stephensen2, S. Smith2; George Chang, MD, MPH, Houston, TX 1Kensington, Victoria, Australia, 2Newcastle, John Monson, MD, Orlando, FL New South Wales, Australia Arden Morris, MD, MPH, Stanford, CA Larissa Temple, MD, Rochester, NY 8:02 am MP5 Liposomal Bupivacaine TAP Blocks in Laparoscopic Colorectal Resections: A Single Institution Randomized Controlled Trial G. Chevrollier*1, H. Green1, C. Whitlow1, H. Vargas1, B. Kann1, W.F. Johnston1, J. Paruch1, D. Margolin1; 1New Orleans, LA

26 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021

Quality Cost and Education continued 8:42 am MP10 Targeted Colorectal Surgery Enhanced Recovery Pathway 8:10 am MP6 Factors Influencing Rank on Strategies Decrease the Colon and Rectal Surgery Readmissions Resident Candidate 1 1 1 Assessment S. Stapler , K. Brockhaus , M. Battaglia , S. Mahoney1, R.K. Cleary*1; 1Ann Arbor, MI S.S. Lansing*1, W.M. Oslock1, L.R. Coleman1, M. Abdel-Rasoul2, S. Noria1, 8:50 am MP11 Decreasing Hospital M. Magallanes1, M. Kalady1, S. Husain1; Readmissions After Ileostomy 1Columbus, OH, 2Colbus, OH Creation (DRAIC) Through a Perioperative Counseling 8:18 am MP7 Comparison of Textbook Program versus 3D Animation versus 1 2 1 1 Cadaveric Training Video in A. Hsu* , C. Todd , X. Zhou , B. Safar , J. Efron1, C. Atallah1, P. Najjar1, S. Fang1; Teaching Laparoscopic Rectal 1 2 Surgery: A Prospective Baltimore, MD, Philadelphia, PA Randomized Clinical Trial from 8:58 am MP12 Effect of Incisional Negative Tertiary Care Centre Pressure Wound Therapy on C. Benlice*1, A. Elcircevi1, B. Kutlu1, Surgical Site Infections in High D. Dogan1, H.I. Acar1, A. Kuzu1; 1Ankara, Risk Re-operative Colorectal Turkey Surgery: A Randomized Controlled Trial 8:26 am MP8 Validation of Task-specific 1 1 1 Metrics for the Assessment of I. Sapci* , T. Hull , J.H. Ashburn , M.A. Valente1, S.D. Holubar1, C. Delaney1, Hand-sewn Bowel 1 1 1 Anastomoses: Developing a S. Steele , D. Liska ; Cleveland, OH Virtual Reality-based 9:06 am MP13 An Observational Survey Study Colorectal Surgical Trainer on Quality and Efficacy of L.M. Parker*1, A. Khan2, C. Telemedicine Visits in Kumwendawilson1, T. Halic3, S. De4, G. Outpatient Colorectal Surgical Sankaranarayanan1, J.W. Fleshman1; Clinic During COVID-19 1Dallas, TX, 2Nashville, TN, 3Conway, AR, Pandemic 4 Troy, NY W. Liu*1, D. Blitzer1, D. Lisle1, J. Ferris1; 8:34am MP9 Incidence of Acute Kidney 1Baltimore, MD Injury Following Colorectal 9:15 am Adjourn Surgery with Use of Ureteral Stents Before and After the Implementation of ERAS Protocol: A Single Surgeon Experience A. Rather1, L. Chew*2, A. Fisher1, D. Chun1; 1Dover, DE, 2Philadelphia, PA

27 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021 7:45 – 9:15 am 8:15 am QSD6 Are Improvements in Surgical Care Leaving Quick Shots of Distinction African American IBD CME Credit Hours: 1.5 Patients Behind? D. Koller*1, M. Abdel-Rasoul1, 7:45 am Introduction M. Magallanes1, J. Chen1, S.S. Lansing1, Marjun Philip Duldulao, MD, Burbank, CA S. Whelan1, A. Afzali1, S. Husain1; Sarah Koller, MD, Los Angeles, CA 1Columbus, OH New Jersey Society of Colon and 8:20 am QSD7 High Grade Dysplasia in Rectal Surgeons Award (Best Basic Inflammatory Bowel Disease Science Quick Shot) - Time for Colectomy? 7:50 am QSD1 Microbiome Diversity E. Olecki*1, S. King1, N. Razavi1, J.S. Scow1; Predicts Surgical Success in 1Hershey, PA Patients with Rectovaginal 8:25 am Fistula QSD8 Revisiting the Volume 1 2 2 2 Outcome Relationship D.A. Leach* , J. Chen , L. Yang , H. Chua , in Rectal Cancer: Do All M. Walther-Antonio2, J.A. Occhino2; High-Volume Hospitals Have 1Portsmouth, VA, 2Rochester, MN Improved Outcomes? 7:55 am QSD2 Non-Randomized A. Becerra*1, J.M. Underhill1, Retrospective Comparative M.W. Grunvald1, A.R. Bhama1, Study of Laser D.M. Hayden1; 1Chicago, IL Sphincterolysis Versus 8:30 am Surgical Sphincterotomy for QSD9 Early Rectal Cancer is Not the Treatment of Chronic Always So Early: Should We Anal Fissure Recommend Neoadjuvant Therapy For cT2N0 Tumors? M.S. Eftahia*1; 1Amman, Jordan G.A. Rubio*1, R.D. Hurst1, K. Umanskiy1, 8:00 am QSD3 Do General Surgery B.D. Shogan1, N. Hyman1, K.B. Skowron1; Residents Retain Knowledge 1Chicago, IL After an Anorectal Skills 8:35 am QSD10 Left-Sided Prevalence and Workshop? Advanced Stage at 1 1 1 M.C. Ginesi* , A. Ofshteyn , J.T. Brady , Presentation of Early Onset J.T. Bliggenstorfer1, K. Bingmer1, S.L. Stein1, 1 1 Colorectal Cancers: Enough E. Steinhagen ; Cleveland, OH to Justify Earlier Screening? 8:05 am QSD4 Impact of the Early C.M. Tom*1, N.A. Jeganathan1, M. Deutsch1, COVID-19 Surge on the W. Koltun1, J.S. Scow1; 1Hershey, PA Outcomes of Diverticulitis 8:40 am QSD11 Risk of Malignancy and T.H. Aulet*1, S.B. Spencer1, J. Abelson1, 1 1 Outcomes of Presacral E. Breen1, A. Kuhnen , J. Saraidaridis , Tailgut Cysts: A P. Marcello1, D.A. Kleiman1; ¹Burlington, MA Contemporary Review of the 8:10 am QSD5 Management of Acute Mayo Clinic Experience Diverticulitis In S. Broccard*1, L. Stocchi1, E. Dozois2, Immunocompromised N. Mishra3, K.L. Mathis2, K. Maimone1, Patients- The Mayo Clinic K.T. Behm2, D. Colibaseanu1, A. Merchea1; Experience 1Jacksonville, FL, 2Rochester, MN, 3 S. He*1, N. Mishra1, D. Etzioni1, S. Kelley2, Phoenix, AZ A. Merchea3; 1Scottsdale, AZ, 2Rochester, MN, 3Jacksonville, FL

28 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021

Quick Shots of Distinction continued 8:00 – 9:15 am 8:45 am QSD12 Trends in General Surgery ABSTRACT SESSION: General Surgery Resident Experience with Forum Colorectal Surgery: An Analysis of the Accreditation CME Credit Hours: 1.25 Council for Graduate 8:00 am Introduction Medical Education Case Sandy Kavalukas, MD, Louisville, KY Logs Alicia Logue, MD, San Antonio, TX S.M. Kling*1, S. Raman1, M. Philp1, J. Poggio1,

H. Ross1, L.E. Kuo1; 1Philadelphia, PA 2020 General Surgery Forum Best Paper Award The Southern California Society of 8:03 am GS1 ASCL1: A Candidate Colon and Rectal Surgeons (Best Epigentically-Regulated Tumor Clinical Quick Shot) Suppressor in HPV-Associated 8:50 am QSD13 Association of Medicaid Malignancies Expansion with Earlier Colon L. Hendrick*1, A. Elahi1, D. Wong1, Cancer Stage at Diagnosis A. Ajidahun1, M. Husain1, J. Lomax1, M. Lin*1, C.M. Foglia2, S. Raman1, J. Franko1, I. Getun1, R. Kansal1, E.S. Glazer1, S.Y. Chao2; 1Des Moines, IA, 2Flushing, NY D. Shibata1; 1Memphis, TN 8:55 am QSD14 Ketorolac is Not Associated Discussant Grace Lee, MD, Boston, MA with Increased Complications Following 8:12 am GS2 Venous Thromboembolism Segmental Colectomy Rates in Colorectal Cancer K.Y. Hu*1, L.E. Rein1, R. Sparapani1, Patients Before and After C. Peterson1, K.A. Ludwig1, T. Ridolfi1; Extended Prophylaxis 1Milwaukee, WI Guidelines 1 1 1 1 9:00 am Summary and Commentary A. Ore* , P. Raje , A. Fabrizio , T.E. Cataldo , K.T. Crowell1, E. Messaris1; 1Boston, MA Marjun Philip Duldulao, MD, Burbank, CA Sarah Koller, MD, Los Angeles, CA Discussant Patrick Sullivan, MD, Atlanta, GA Kent Peterson, MD, Milwaukee, WI 9:15 am Adjourn 8:21 am GS3 Multiple High-Risk Features in Stage II Colon Carcinoma Portend Worse Survival Than Stage III Disease B.C. Herritt*1, C. Castellucci1, L. Hajirawala1, Y. Yi 1, A. Klinger1, G.R. Orangio1, K. Davis1, J.S. Barton1; 1New Orleans, LA Discussant Paul McClelland, MD, Brooklyn, NY

29 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021

General Surgery Forum continued 9:30 – 10:15 am 8:30 am GS4 Adjuvant Treatment and Norman D. Nigro, MD, Research Survival in Patients with Stage Lectureship II/III Small Bowel Adenocarcinoma CME Credit Hours: .75 B. Li*1, E.C. Brown1, F. Egawa1, J. Lambrecht1, CNE Credit Hours: .75 1 1 D.M. Krishnamurty ; Omaha, NE The History and Future of Infection Discussant Prevention Following Colorectal Surgery: Sarah Morgan Kling, MD, Philadelphia, PA SSIs, Leaks and Beyond 8:39 am GS5 Risk Factors for Microscopic John C. Alverdy, MD Disease Positivity at Ileocolic Sarah and Harold Lincoln Thompson Professor Resection Margins for Crohn’s of Surgery Disease University of Chicago A. Truong*1, J. Chough1, K. Zaghiyan1, Chicago, IL P. Fleshner1; 1Los Angeles, CA Introduction: Gregory D. Kennedy, MD, PhD Discussant Ashlyn Whitlock, MD, Boston, MA 10:15 – 11:30 am 8:48 am GS6 Colorectal Surgery ERAS: Lessons Learned Years Later QUICK SHOTS II: Benign Anorectal A.M. Madiedo*1, G. Rasic1, U.R. Phatak1, Disease and Pelvic Floor J.F. Hall1, J. Favuzza1; 1Allston, MA CME Credit Hours: 1.25 Discussant 10:15 am Introduction Scott Nguyen, MD, Honolulu, HI Nathalie Mantilla, MD, Chicago, IL 8:57 am GS7 The Association Between Sex Maria Michailidou, MD, Porto Rafti, and Survival for HPV Positive Greece Anal Squamous Cell Carcinoma 10:17 am QS20 Obstacle or Miracle? V.M. Welten*1, A.C. Fields1, R.A. Malizia1, A Modified Bareness of J. Yoo1, J. Irani1, R. Bleday1, J. Goldberg1, External Anal Sphicter N. Melnitchouk1; 1Boston, MA (BEAS) for High Horeshoe Discussant Anal Fistula Based on a Dalun Tang, MD, Ann Arbor, MI Cohort Study. 1 1 1 1 9:06 am GS8 Mediating Factors Between J. Zhu , Q. Wang* , Z. Mei , W. Yang ; 1 Patient Race and Time to Shanghai, China Colorectal Cancer Treatment 10:22 am QS21 Botulinum Toxin M.W. Grunvald*1, J.M. Underhill1, C.T. Chemodenervation for Anal Aquina1, A.R. Bhama1, D.M. Hayden1, Fissure: Survey of ASCRS A. Becerra1; 1Chicago, IL Members Discussant A.R. Bhama*1, B.C. Chapman2, J.S. Davids3, Stevie-Jay Stapler, MD, Ann Arbor, MI S.G. Eisenstein4, D.R. Fish5, K. Sherman6, V. Simianu7, K. Zaghiyan8, M.B. Zoccali9; 9:15 am Adjourn 1Chicago, IL, 2Aurora, CO, 3Worchester, MA, 4La Jolla, CA, 5Springfield, MA, 9:15 – 9:30 am 6Durham, NC, 7Seattle, WA, 8Los Angeles, 9 Virtual Engagement Break, Join us CA, New York, NY at ASCRS Central in the Exhibit Hall!

30 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021

Benign Anorectal Disease and Pelvic Floor 10:52 am QS27 Sacral Nerve Stimulation for continued Fecal Incontinence: Can Demographics and 10:27 am QS22 Transanal Hemorrhoidal Diagnosis Predict Success? Dearterialization: Long-term Results of a Retrospective Outcomes from a Single- Chart Review. center Retrospective Study R.J. Straker*1, P.T. Hernandez1, D. Murken1, in the US E.C. Paulson1, J.I. Bleier1; 1Philadelphia, PA C.F. Fong*1, S. Kim1; 1New York, NY 10:57am QS28 Which Radiographic or 10:32 am QS23 A Randomized Trial of Deep Clinical Findings Best Breathing Exercises to Predict Outcome Following Reduce Postoperative Pain Ventral Rectopexy for Following Obstructed Defecation Hemorrhoidectomy Syndrome? 1 1 1 1 J.F. Hall* , U.R. Phatak , D. Kent , S. Talutis , K.A. Kelley*1, J. Ogilvie1; 1Grand Rapids, MI S. Lajoie1, A. Kuhnen2, J. Favuzza1; 1Boston, MA, 2Burlington, MA 11:02 am QS29 Sacral Nerve Stimulation for Treatment of Fecal 10:37 am QS24 A New Pathway of Spread of Incontinence: Complication Pus/Sepsis in the Outer Rates, and Post-Revision Fibers of External Ana Outcomes Sphincter: Evidence and Its 1 1 1 Implications in Management P.T. Hernandez* , R.J. Straker , D. Murken , E.C. Paulson1, J.I. Bleier1; 1Philadelphia, PA of Anal Fistulas P. Garg*1, K. Singla1, S.S. Sodhi1, 11:07 am QS30 Laparoscopic Posterior J. Chowdhry2; 1Panchkula, Haryana, India, Suture Rectopexy (LPSR) vs. 2Mumbai, Maharashtra, India Laparoscopic Ventral Mesh Rectopexy (LVMR) in the 10:42 am QS25 A Simple New Protocol to Management of Rectal Effectively Manage Anal Prolapse Fistulas with No Obvious 1 1 1 Internal Opening:An Audit M.N. Fakler* , A. Whitlock , B.G. Allar , 1 1 1 of 757 Operated Cases T.E. Cataldo , K.T. Crowell , A.C. Fabrizio , E. Messaris1; 1Boston, MA P. Garg*1, K. Singla1, S.S. Sodhi1, J. Chowdhry2; 1Panchkula, Haryana, India, 11:12 am QS31 Prospective Evolution of 2Mumbai, Maharashtra, India Natural Orifice Transanal Endoscopic Rectopexy as a 10:47 am QS26 Use of Botulinum Toxin novel treatment for Injections for the Treatment Complete Rectal Prolapse. of Chronic Anal Fissure: 1 1 1 Results from an American A. Chandra* , P. Rajan , N. Kumar , 1 1 1 Society of Colon and Rectal V. Gupta , A. Pai , M. Rajashekhara , R. Patel1, B. Sangal1; 1Lucknow, Uttar Surgeons National Survey Pradesh, India A. Studniarek*1, D.J. Borsuk2, J.J. Park2, S.J. Marecik2, A. Mellgren1, K. Kochar2; 1Chicago, IL, 2Park Ridge, IL

31 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021

Benign Anorectal Disease and Pelvic Floor Objectives continued At the conclusion of this session, participants should be able to: 11:17 am QS32 Correlation of Symptoms and Pelvic Floor 1. Identify administrative barriers and Dysfunctions with Levator mitigation strategies for successful ERP Ani Muscle Defect in Female implementation Patients after Vaginal 2. Recognize the differences in techniques and Delivery efficacy of various regional anesthesia S.M. Murad-Regadas*1, A.d. Vilarinho1, modalities L.B. Veras1, L.B. Batista1, D. Lima2, F.S. 3. Explore the association between NSAIDs and Regadas Filho1, M.T. Oliveira1, M. Macedo1; surgical complications 1Fortaleza, Ceara, Brazil, 2Cascavel, Brazil 4. Describe the components of Prehabilitation 11:22 am Discussion and Commentary Co-Directors Nathalie Mantilla, MD, Chicago, IL Maria Michailidou, MD, Porto Rafti, Greece Amanda Hayman, MD, Portland, OR Juan Nogueras, MD, Cleveland, OH Traci Hedrick, MD, Charlottesville, VA 11:30 am Adjourn 10:15 am Introduction Amanda Hayman, MD, Portland, OR 10:15 – 11:45 am Traci Hedrick, MD, Charlottesville, VA 10:20 am Making your ERP Case to SYMPOSIUM: Enhancing Your Recovery Administration Program Daniel Chu, MD, Birmingham, AL CME Credit Hours: 1.5 10:33 am ERP in Special Populations: CNE Credit Hours: 1.5 Emergent/ACS, Medical Enhanced Recovery Protocols (ERP) have Comorbidities, Geriatric, Opiate- become common in colorectal surgery based tolerant Patient Thomas Curran, MD, MPH, Charleston, SC on a multitude of data demonstrating improvement in surgical outcomes. A cross- 10:46 am The Latest and Greatest in Regional disciplinary team of experts, drawn from every Anesthesia: TAPs, Spinals, Blocks, point of surgical care, is critical to the and Beyond successful development, implementation and Anoushka Afonso MD, New York, NY maintenance of ERPs. While many institutions 10:59 am NSAIDS: Friend or Foe? have adopted ERPs, sustained success can be Jessica Cohan, Salt Lake City, UT challenging and there are many unanswered questions. In this multidisciplinary symposium 11:12 am Prehabilitation: ERP’s Next Frontier we will review practical tips and tricks relevant Melissa Chang, MD, MSE, Ypsilanti, MI to the practicing surgeon for optimizing 11:25 am Panel Discussion outcomes within Enhanced Recovery. 11:45 am Adjourn

32 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021 10:15 – 11:45 am 11:00 am Neurogenic Bowel: Definition, Associated Conditions, Treatment SYMPOSIUM: From Pull-through to and Long-term Considerations PSARP: Caring for Patients with Kristin Fiorini, MD, Philadelphia, PA Congenital and Pediatric Colorectal 11:15am Barriers to Transitioning Colorectal Disease as they Age Care from Pediatric to Adult Centers CME Credit Hours: 1.5 Meagan Costedio, MD, Cleveland, OH CNE Credit Hours: 1.5 11:30 am Closing Comments Erin Teeple, MD, Wilmington, DE Self-Assessment Credit: 1.5 11:35 am Panel Discussion & Questions As surgical and medical care for children have improved, they are living longer and healthier 11:45 am Adjourn lives. The approach to transition of colorectal patients from the pediatric to adult systems 10:15 – 11:45 am needs a collaborative and educated approach to reduce recidivism and ensure smooth PLENARY ABSTRACT SESSION V: Benign transition. The needs of congenital colorectal Abdominal Disease patients require knowledge of the embryology, CME Credit Hours: 1.5 repair and long-term consequences. 10:15 am Introduction Objectives Sami Chadi, MD, Toronto, ON Canada At the conclusion of this session, participants Bruce Robb, MD, Indianapolis, IN should be able to: 10:25 am MP21 Should We Scope Beyond 1. Explain anorectal malformation: anatomy and the Age-Limit of Guidelines? repair as well as long term considerations Adenoma Detection Rates 2. Review Hirschsprung’s Disease: anatomy and and Outcomes of Screening repair as well as long term considerations and Surveillance 3. Review neurogenic bowel, associated Colonoscopies in Patients diagnoses, treatment and long-term Aged 75 -79 Years Old considerations of treatment with antegrade Z. Harra*1, C. Vasilevsky1, G. Ghitulescu1, continent enterostomy, cecostomy/chait N. Morin1, M. Boutros1, A. Pang1; 1Montreal, QC, Canada 4. Discuss barriers to transition, both from pediatric as well as adult viewpoints, and 10:33 am MP23 Recurrence and Need for how to overcome Surgery After Acute Diverticulitis: Does Family Co-Directors History Matter? Alessandra Gasior, DO, Columbus, OH J.N. Cohan*1, J.J. Horns1, H.A. Hanson1, Erin Teeple, MD, Wilmington, DE K. Allen-Brady1, M.C. Kieffer1, J. Hotaling1, 1 1 10:15 am Introduction B.S. Brooke ; Salt Lake City, UT Alessandra Gasior, DO, Columbus, OH 10:41 am MP24 Rare Loss of Function 10:30 am Anorectal Malformations: Genetic Variants Associated Embryology, Anatomy, Treatment with Diverticular Disease and Long-term Considerations H.D. Schaeffer*1, S. Saylors1, D.T. Smelser1, Payam Saadai, MD, Sacramento, CA J. Dove1, K. Long1, C. Buzas1, D.J. Carey1, R. Hoffman1; 1Danville, PA 10:45 am Hirschsprung’s Disease: Embryology, Anatomy, Treatment and Long-term Considerations Erin Teeple, MD, Wilmington, DE

33 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021

Benign Abdominal Disease continued 11:29 am MP30 Impact of COVID-19 On Colorectal Surgery; Effect 10:49 am MP25 The Impact of Extended on Postoperative Postoperative Antibiotics on Respiratory Events the Incidence of Surgical 1 1 2 Site Infections after Surgery R.N. Goldstone* , C.E. Cauley , J. Zhang , C. Stafford1, L. Bordeianou1, H. Kunitake1, for Diverticulitis. T. Francone1, R. Ricciardi1; 1Boston, MA, T. Peponis*1, R. Bleday1, M. Rubin2, 2New Haven, CT C.E. Cauley1, R.N. Goldstone3, R. Ricciardi1, K. Ahmed1, L. Bordeianou1; 1Boston, MA, 11:45 am Adjourn 2Salem, MA, 3Newton, MA 10:57 am MP26 Provocative Mesenteric 11:45 am – 1:15 pm Angiograms – It’s Not As Virtual Engagement Break, Join us Risky As You Might Think at ASCRS Central in the Exhibit Hall! G. Thiry*1, S. Dhand2, A. Gregorian1, Visit the exhibit hall and interact with exhibitors N. Shah3; 1Whittier, CA, 2Los Angeles, CA, 3Providence, RI or drop by ASCRS Central to enjoy some fitness bytes! Don’t forget to visit the Networking 11:05 am MP27 Playing the Long Game: Lounge where you can chat with your A Cross Sectional Survey of colleagues. Patient Reported Outcomes Industry Representatives available for Live Chat: in the Management of 11:30 am – 1:00 pm Recurrent Diverticulitis N.J. Harrison*1, M. Hopkins1, M. Ford1, Industry Education Booth – Live Symposia R. Muldoon1, D. Beck1, A. Khan1, • BD Industry Education Symposium 1 1 1 T.M. Geiger , A. Hawkins ; Nashville, TN • Baudax Bio, Inc. Industry Education 11:13 am MP28 Surgical Management of Symposium Patients with Gastrointestinal Tuberculosis 1:15 – 2:00 pm E.T. Limpin*1, M.J. Lopez1, S. Maglangit1, J. Torres1, M.S. Onglao1, M.C. Cabanilla- Special Lectureship Manuntag1, R. Maralit1, R. Dofitas1; 1Manila, CME Credit Hours: .75 Metro Manila, Philippines CNE Credit Hours: .75 11:21 am MP29 Enterococcus Faecalis is Leadership in Turbulent Times Associated with Anastomotic Leak in Tracy L. Hull, MD Patients Undergoing Professor of Surgery Colorectal Surgery Cleveland Clinic Lerner College of Medicine of Case Western Reserve University D. Anderson*1, R. Keskey1, M.T. Ackerman1, O. Zaborina1, N. Hyman1, J.C. Alverdy1, Department of Colon and Rectal Surgery B.D. Shogan1; 1Chicago, IL The Cleveland Clinic Foundation Cleveland, OH Introduction: Neil H. Hyman, MD

34 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021 2:00 – 3:15 pm 2:00 pm Introduction Syed Husain, MD, Columbus, OH SYMPOSIUM: Controversies in IBD Sharon Stein, MD, Cleveland, OH Surgery 2:05 pm Three-stage Procedure for Chronic CME Credit Hours: 1.25 Ulcerative Colitis is Preferable to CNE Credit Hours: .75 Two-stage Procedures Karen Zaghiyan, MD, Los Angeles, CA There are many controversies in the treatment of inflammatory bowel disease. This 2:10 pm Two-stage Procedure for Chronic symposium will focus on three areas of Ulcerative Colitis is Preferable to controversy: Three-stage Procedures Hiroko Kunitake, MD, Boston, MA 1. Two vs three-stage pouch for patients with ulcerative colitis 2:15 pm Case Presentation and Panel 2. Cessation of biologics prior to semi-elective Discussion resection for patients with Crohn’s disease Syed Husain, MD, Columbus, OH Sharon Stein, MD, Cleveland, OH 3. Treatment of low-grade dysplasia in the setting of ulcerative colitis 2:30 pm Preoperative Cessation of A case-based discussion, with invited quick Immunosuppression is Necessary in review of the relevant literature, audience Steroid Dependent Crohn’s Patients polling and participation, and discussion of Before Semi-Elective Surgeries Lisa Cannon, MD, Rochester, NY risks benefits and caveats by an expert panel in the medical and surgical management of 2:35 pm Preoperative Cessation of inflammatory bowel disease. Immunosuppression is Not Necessary in Steroid Dependent Crohn’s Objectives Patients Before Semi-Elective At the conclusion of this session, participants Surgeries should be able to: Stefan Holubar, MD, Cleveland, OH 1. Discuss the clinical scenarios where two- 2:40 pm Case Presentation and Panel stage pouch procedures would be preferable Discussion to three-stage operations, and vice versa. Syed Husain, MD, Columbus, OH 2. Explore the nuances in perioperative Sharon Stein, MD, Cleveland, OH management of immunosuppression in 2:55 pm Low-grade Dysplasia is an Absolute steroid dependent patients: is active disease Indication for Total Proctocolecotmy at the time of surgical intervention in Chronic Ulcerative Colitis Patients associated with worse outcomes than active Samuel Eisenstein, MD, La Jolla, CA immunosuppression? 3:00 pm 3. Evaluate if a total proctocolectomy is Not All Chronic Ulcerative Colitis essential in all CUC patients with low-grade Patients with Low-grade Dysplasia dysplasia; is there any role of surveillance in Require Total Proctocolectomy Karen Zaghiyan, MD, Los Angeles CA the era of image-enhanced endoscopy? 3:05 pm Case Presentation and Panel Co-Directors Discussion Syed Husain, MD, Columbus, OH Syed Husain, MD, Columbus, OH Sharon Stein, MD, Cleveland, OH Sharon Stein, MD, Cleveland, O 3:15 pm Adjourn

35 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 20211 2:00 – 3:15 pm SYMPOSIUM: How to Wake-Up from An 2:00 pm Introduction Steven Lee-Kong, MD, New York, NY Intra-Operative Nightmare Dipen Maun, MD, Mooresville, IN CME Credit Hours: 1.25 2:05 pm Was That the Ureter? CNE Credit Hours: .75 Sergey Khaitov, MD, New York, NY This symposium will highlight potential 2:11 pm How Did all that Blood Get There? complications that can occur during common Alodia Gabre-Kidan MD, Columbia, MD colorectal surgical procedures, as well as describe/illustrate methods for rapid 2:17 pm Had to Be a Stapler Misfire! identification and management of these serious Toyooki Sonoda, MD, Garden City, NY adverse events. The presenters will review brief 2:23 pm TaTME – What Plane am I In? videos, when possible, which capture difficulties Jutin Maykel, MD, Worcester, MA that surgeons may encounter. Detailed review of the encountered complications and how one can 2:29 pm Not Really that NICE recover from them will be reviewed. Jean-Paul LeFave, MD, Houston, TX 2:35 pm Is That the Peritoneum We are Objectives Looking at? At the conclusion of this session, participants Garrett Friedman, MD, Las Vegas, NV should be able to: 2:41 pm Collateral Damage During “Routine” 1. Explain the potential intra-operative Colectomy? complications that may occur during Matthew Mutch, MD, St. Louis, MO common surgical procedures 2:47 pm Pelvic Surgery in the Morbidly Obese 2. Identify the above potential complications David Dietz, MD, Cleveland, OH 3. Employ surgical management strategies to manage the above complications 2:53 pm Question & Answer Co-Directors 3:15 pm Adjourn Steven Lee-Kong, MD, New York, NY Dipen Maun, MD, Mooresville, IN

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Monday, April 26, 2021 2:00 pm – 3:15 pm Co-Directors Emily Steinhagen, MD, Cleveland, OH SYMPOSIUM: Beyond the Knife. Paul Wise, MD, St. Louis, MO Personalized Colorectal Cancer 2:00 pm Introduction and Opening Comments Treatment – Genetics, Molecular Emily Steinhagen, MD, Cleveland, OH Targets, Immunotherapy and More Paul Wise, MD, St. Louis, MO CME Credit Hours: 1.25 2:05 pm When in Doubt, Take it Out? Extent CNE Credit Hours: .75 of Surgery in Lynch Syndrome Colorectal cancer always has a genetic etiology, Sonia Ramamoorthy, MD, San Diego, CA with at least 5% of cases due to germline 2:20 pm Gene-mutation Negative Polyposis: mutations, and even patients with sporadic Now What? cancers due to somatic gene mutations James Church, MD, Cleveland, OH demonstrating genetic alterations in the tumor 2:35 pm What is the Tumor Telling Us? A that may guide their treatment. While patients Primer in Tumor Profiling with certain types of colorectal cancer may Heather Hampel, MS, LGC, Columbus, OH benefit from immunotherapy and other novel 2:50 pm Immunotherapy: When & For Whom? and new treatments, those patients with Aaron Miller, MD, PhD, San Diego, CA hereditary colorectal cancer syndromes require 3:05 pm Panel Discussion and Questions complex decision-making regarding their care, including deciding on the best surgical options 3:15 pm Adjourn in their management. 3:15 – 3:30 pm Objectives At the conclusion of this session, participants Virtual Engagement Break, Join us should be able to: at ASCRS Central in the Exhibit Hall! 1. Describe the surgical options for patients Visit the exhibit hall and interact with exhibitors with Lynch Syndrome and explain when each or drop by ASCRS Central to enjoy some fitness is appropriate bytes! Don’t forget to visit the Networking 2. Recognize the importance of genetic testing Lounge where you can chat with your as well as phenotype in surgical decision- colleagues. making for patients with polyposis syndromes 3. Classify tumors (and treatments) by genetic alterations for both sporadic and hereditary colorectal cancer patients 4. Discuss the role of immunotherapy in the treatment of colorectal cancer

37 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Monday, April 26, 2021 3:30 – 5:15 pm 4:23 pm NT3 Natural Orifice Endo- sonographic SYMPOSIUM: New Technologies Colposuspension with (Non-CME) Rectopexy for Comorbid The New Technologies Symposium has become Rectal & Vaginal Pelvic an annual event at the ASCRS Annual Scientific Organ Prolapse Meeting and serves as a unique opportunity to A. Chandra*1, P. Rajan1, M. Rajashekhara1, work with ASCRS members and industry to V. Gupta1, N. Kumar1, A. Pai1, R. Patel1, present new technologies in the field of colon P. Shah1; 1Lucknow, Uttar Pradesh, India and rectal surgery in a non-CME forum. 4:35 pm Industry Sponsored Presentation: Colospan Co-Directors Protection of Colorectal Anastomosis Sam Atallah, MD, Orlando, FL with an Intraluminal Bypass Device Patricia Sylla, MD, New York, NY Instead of a Diverting Stoma – A 3:30 pm Introduction Potential Paradigm Shift Sam Atallah, MD, Orlando, FL Surya Nalamati, MD Patricia Sylla, MD, New York, NY 4:47 pm NT4 Initial Experience in Robotic 3:35 pm NT1 Closing the Gaps: Improving Colorectal Resection Using a Quality of Life and Patient Novel Modular Robotic Reported Outcomes For Surgical System: Ostomates A Dual-center Case of 51 Patients L. Auerbach*1, P. Gallagher1, B. Dinh1, 1 1 B. Reel1, R. Fearn2; 1Irivine, CA, 2Irvine, CA P.G. Vaughan-Shaw* , J. Vojak , A. Le Saint Grant1, D.R. Collins1, H. Paterson1, A.S. 3:47 pm NT2 Magnetic Assisted Nizar2, H. Tilney2, D. Speake1; 1Edinburgh, Laparoscopic Right United Kingdom, 2Frimley, United Hemicolectomy with 4:59 pm Intracorporeal Anastomosis Summary and Conclusion Sam Atallah, MD, Orlando, FL 1 1 1 R. Cox* , M. Downs , J. Salgado , Patricia Sylla, MD, New York, NY C.H. Olson1; 1Dallas, TX 5:15 pm Adjourn 3:59 pm Industry Sponsored Presentation: ColubrisMX 5:30 – 6:45 pm Advancing Endoluminal Colorectal Surgery through Robotics Residents’ Reception Todd Wilson, MD Open to General Surgery residents and 4:11 pm Industry Sponsored Presentation: Colorectal Surgery program directors only LumenEye® This event is an opportunity for general surgery A Prospective Observational residents to network with colorectal surgery Analysis of a Novel Digital program directors and learn more about the Rectoscope: LumenEye® specialty and the Society. James Kinross, MD Advance registration is required. Residents can win a copy of the ASCRS Textbook of Colon and Rectal Surgery, the ASCRS Manual of Colon and Rectal Surgery or free registration to the 2022 Annual Scientific Meeting.

38 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Daily Schedule

Tuesday, April 27, 2021 Exhibit Hall Open: 7:00 am – 6:00 pm Industry Representatives available for Live Chat: 12:00 – 1:30 pm Ongoing Video Room: 7:00 am – 6:00 pm ePosters: 7:00 am – 6:00 pm

7:00 – 8:00 am 7:45 am QS37 Pathological Complete Response in Patients with Diversity Virtual Meet-up ypT0 Primary Tumor After Open to all registered attendees Neoadjuvant Therapy for Rectal Cancer ASCRS is proud of its diversity and wants to 1 1 1 1 ensure all voices are heard at the 2021 Annual S. Qureshi* , C. Reickert , M. Asai ; Detroit, MI Scientific Meeting. Come celebrate diversity 7:50 am QS38 Impact of Total Neoadjuvant with us and learn how to get more involved Therapy on Perioperative with the society. We seek to have many races, Outcomes After ethnicities and backgrounds involved at every Proctectomy for Rectal level. Everyone is welcome. Cancer 1 1 1 1 Facilitated by: Z. Xu* , M.A. Valente , B. Sklow , D. Liska , E. Gorgun1, H. Kessler1, D. Rosen1, S. Steele1; Jonathan Laryea, MD, Louisville, KY 1Cleveland, OH Lynn O’Connor, MD, Huntington, NY 7:55 am QS39 Management of Patients 7:30 – 9:00 am with Rectal Cancer in QUICK SHOTS III: Rectal Cancer, Wisconsin: Implications for Improving Quality and Colorectal Cancer, and Other Neoplasia Addressing Disparities CME Credit Hours: 1.5 D. Livingston-Rosanoff*1, J. Schumacher1, J. Peters1, M. Venkatesh1, D. Yang1, 7:30 am Introduction E. Lawson1; 1Madison, WI Ayana Chase, MD, Atlanta, GA David Rosen, MD, Cleveland, OH 8:00 am QS40 Using CT Based Pelvimetry 7:35 am QS35 Postoperative Outcomes for and Visceral Obesity Non-Metastatic Rectal Measurements to Predict Cancer in Academic Versus TME Quality for Patients Community Cancer Centers: Undergoing Rectal Cancer An Analysis of The National Surgery Cancer Database V. Bolshinsky*1, D. Sweet2, D. Vitello2, I. Sapci2, X. Jia2, S.D. Holubar2, B. Herts2, M.L. Horsey*1, A. Sparks1, M. Ng1, V. Obias1; S. Steele2; 1Melbourne, Victoria, Australia, 1Washington, DC 2Cleveland, OH 7:40 am QS36 Preoperative Chemoradiotherapy in cT2N0 Distal Rectal Cancer Patients is Justifiable? M. Park*1, C. Yu1, J. Lee1, Y. Yoon1, I. Park1, S. Lim1, J. Kim1; 1Seoul, Korea (the Republic of)

39 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Tuesday, April 27, 2021

Rectal Cancer, Colorectal Cancer, and Other 8:35 am QS47 Quantitative Indocyanine Neoplasia continued Green Fluorescence Imaging Assessment for Peritoneal 8:05 am QS41 Transanal TME Surgery For Metastases location. First Rectal Cancer: Oncological RCP Study. Outcomes in a Single UK C. González*1, A. Besa1, B. De Lacy1, Centre S. Valverde1, R. Almenara1, A.M. Lacy1; 1 1 1 M. Taylor* , E. Courtney ; Bath, United 1Barcelona, Spain Kingdom 8:40 am QS48 Malignant Colon Polyps: 8:10 am QS42 Lack of Complete An Under-Over Surgical Pretreatment Staging is Treatment Dilemma Associated with Omission S. Naffouje*1, N. Manguso1, B. Powers1, of Neoadjuvant Therapy for J. Sanchez1, S. Dessureault1, S. Felder1; Rectal Cancer: A Statewide 1Tampa, FL Study D. Tang1, S.J. Rivard1, w. weng1, C. Ramm1, 8:45 am QS49 Performance Evaluation of R.K. Cleary*1, S. Hendren1; 1Ann Arbor, MI Stool DNA Methylation Tests in Colorectal Cancer 8:15 am QS43 Racial Disparities: Effects on Screening Treatment and Survival for M. Gachabayov*1, E. Lebovics1, Rectal Cancer A. Rojas1, M. McGuirk1, C. Anderson1, B. Aibuedefe*1, K. Hamilton1, S.M. Kling1, R. Bergamaschi1; 1Valhalla, NY J. Poggio1; 1Philadelphia, PA 8:50 am QS50 Does Colonic Stenting for 8:20 am QS44 Zebrafish Patient Derived Malignant Large Bowel Xenograft Model of Colon Obstruction Increase Cancer as Personalized Surgical Risk? Medicine Tool to Predict the S. Stafford*1, G. Poles1, L.K. Temple1, Most Effective Treatment F. Fleming1, L. Cannon1, C. Cellini1, R. Strategy Salloum1, J. Speranza1, J. Dux1; 1Rochester, G. Di Franco*1, A. Usai1, M. Piccardi1, NY P. Cateni1, C. Cremolini1, L. Pollina1, V. Raffa1, L. Morelli1; 1Pisa, Italy 8:55 am Discussion and Commentary Ayana Chase, MD, Atlanta, GA 8:25 am QS45 Does Small Bowel Lynn O’Connor, MD, New York, NY Adenocarcinoma Portend David Rosen, MD, Cleveland, OH a Worse Prognosis than 9:00 am Adjourn Colonic Adenocarcinoma? A Case-matched Comparison K.O. Wells1, G. Ogola1, A. Waddimba1, M. Al-temimi*2; 1Dallas, TX, 2San Francisco, CA 8:30 am QS46 Racial Disparity in Age and Stage at Diagnosis for Colorectal Cancer: Is it Time to Rethink Screening Recommendations V. Nfonsam*1, S. Saeed1, E. Thompson1, C. Villa1, P. Hsu1, M. Hamidi1, D.M. Hayden2; 1Tucson, AZ, 2Chicago, IL

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Tuesday, April 27, 2021 8:00 – 9:00 am 8:41 am Managing Anastomotic Leaks Karin Hardiman MD, PhD, Birmingham, AL SYMPOSIUM: A Well-Made Anastomosis 8:53 am Panel Question and Answer Could Be Your Best Sleep Medicine 9:00 am Adjourn CME Credit Hours: 1 CNE Credit Hours: 1 8:00 – 9:00 am Mastery of anastomotic construction is one, SYMPOSIUM: Diversity in Colorectal Surgery if not the most, important technical skill CME Credit Hours: 1 within the field of colorectal and many other abdominopelvic surgical specialties. Therefore, it CNE Credit Hours: 1 is critically important that colorectal surgeons be This symposium will shed light on the current armed with the skills on how to construct a healthcare trends that promote disparities in perfect anastomosis for the patient lying before medical care as it relates to racial and ethnic them and be able to navigate difficult decisions minorities in this country. Our guest speakers and such as whether or not to divert them, or how to panel discussion will focus on solutions to address avoid an anastomosis altogether. We have healthcare disparities in terms of equity of brought leaders from around the country who healthcare outcomes, research, and recruitment have specifically chosen to share their particular and education of trainees to affect change. interest and experience with various anastomotic techniques including handsewn, stapled Objectives (including the historical aspects) and the IPAA. At the conclusion of this session, participants should be able to: Objectives 1. Recognize how implicit biases have led to the At the conclusion of this session, participants inequities in the American healthcare system should be able to: 2. State how changes in approach to patient 1. Describe techniques for optimal handsewn care combat the biases and disparities anastomotic techniques 3. Explain how modifying trainee recruitment 2. Recall the history and limitations of the and research practices can lead to better stapled anastomotic technique outcomes for the disparate patient population 3. Discuss the risks and benefits of handsewn vs. stapled IPAA construction Co-Directors Erin King-Mullins, MD, Atlanta, GA Co-Directors Wayne B. Tuckson, MD, Louisville, KY Emina Huang, MD, Cleveland, OH Benjamin Shogan, MD, Chicago, IL 8:00 am Welcome and Introduction Erin King-Mullins, MD, Atlanta, GA 8:00 am Introduction Wayne B. Tuckson, MD, Louisville, KY Emina Huang, MD, Cleveland, OH Benjamin Shogan, MD Chicago, IL 8:05 am Speaker Dayna Bowen Matthew, JD, PhD, 8:05 am Sewing Yourself Out of Trouble Washington, DC Evie Carchman, MD, Madison, WI 8:35 am Panel and Discussion 8:17 am Do You Know How to Correctly Use Dayna Bowen Matthew, JD, PhD, the Staplers? Washington, DC Muneera Kapadia MD, MME, Chapel Hill, NC Charles, Friel, MD, Charlottesville, VA Dana Hayden, MD, Chicago, IL 8:29 am Methods to Ensure Adequate Blood Valentine Nfonsam, MD, Tucson, AZ Flow to Your Anastomosis – Do They Work? 8:55 am Closing Remarks/Wrap-Up Daniel Popowich MD, New York, NY 9:00 am Adjourn

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Tuesday, April 27, 2021 8:00 – 9:00 am 8:33 am RF4 A Novel Continuous Professional Development ABSTRACT SESSION: Research Forum Program for Colorectal CME Credit Hours: 1 Surgeons S.J. Rivard*1, C. Varlamos1, C. Hibbard1, 8:00 am Introduction A. Duby1, M.J. Callow1, J.B. Dimick1, Nelya Melnitchouk, MD, Boston, MA J.C. Byrn1, M.E. Byrnes1; 1Ann Arbor, MI Karen Zaghiyan, MD, Los Angeles, CA Discussant 2020 Works in Progress Award Nicole Lopez, MD, La Jolla, CA 8:06 am RF1 Mucinous Adenocarcinoma of 8:42 am RF5 Parastomal Hernia Rates and the Rectum: A Whole-genome Exercise Following Ostomy Sequencing Study Surgery I.S. Reynolds*1, E. O’Connell1, V. Thomas1, J. Park*1, S.J. Rivard1, L. Maguire1, D.A. McNamara1, E.W. Kay1, J.H. Prehn1, C. Varlamos1, A. Duby1, S. Hendren1; S.J. Furney1, J. Burke1; 1Dublin, Leinster, 1Ann Arbor, MI Ireland Discussant Discussant Anthony De Buck Van Overstraeten, MD, Mehraneh Dorna Jafari, MD, Irvine, CA Toronto, ON, Canada 8:15 am RF2 Long Non-coding RNA ZFAS1 8:51 am RF6 Rectal Cancer Survivorship: Knockdown is Associated with Utilizing Photoelicitation to Decreased Tumorigenesis Study Patient Needs Through Decreased Cellular 1 1 1 Proliferation and Migration S.J. Rivard* , C. Vitous , C. Varlamos , A. Duby1, P.A. Suwanabol1; 1Ann Arbor, MI S.J. O’Brien*1, M. Paas1, A. Patel1, S. Galandiuk1; 1Louisville, KY Discussant Trevor Wood, MD, Thunder Bay, ON, Discussant Canada Deborah Keller, MS, MD, New York, NY 9:00 am Adjourn 8:24 am RF3 SDF-1 to Regenerate the Anal Sphincter After a Chronic 9:00 – 9:15 am Injury. Does Dose Matter? A. Billups1, S. Li2, A. Rietsch1, M. Damaser1, Virtual Engagement Break, Join us M. Zutshi*2; 1Cleveland, OH, 2Cleveland at ASCRS Central in the Exhibit Hall! Heights, OH Visit the exhibit hall and interact with exhibitors Discussant or drop by ASCRS Central to enjoy some fitness Lisa Cannon, MD, Rochester, MN bytes! Don’t forget to visit the Networking Lounge where you can chat with your colleagues.

42 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Tuesday, April 27, 2021 9:15 – 10:15 am 12:00 – 1:30 pm ASCRS Annual Business Meeting and Virtual Engagement Break, Join us State of the Society Address at ASCRS Central in the Exhibit Hall! Visit the exhibit hall and interact with exhibitors 10:15 – 11:00 am or drop by ASCRS Central to enjoy some fitness bytes! Don’t forget to visit the Networking Masters in Colorectal Surgery Lounge where you can chat with your Lectureship Honoring Robert D. Fry, MD colleagues. CME Credit Hours: .75 Industry Representatives available for Live Chat: CNE Credit Hours: .75 12:00 – 1:30 pm Robert D. Fry: A Legacy of Education and Industry Education Booth – Live Symposia Mentorship and Colorectal Surgery • Intuitive Industry Education Symposium Najjia Mahmoud, MD • Ethicon Industry Education Symposium Professor of Surgery University of Pennsylvania Philadelphia, PA 12:00 – 1:30 pm Introduction: Joshua Bleier, MD Women and Allies for Women in 11:00 – 11:15 am Colorectal Surgery Virtual Meet-up Open to all registered attendees Virtual Engagement Break, Join us Hosted By at ASCRS Central in the Exhibit Hall! Jennifer Davids, MD, Worcester, MA Erin King-Mullins, MD, Atlanta, GA 11:15 am – 12:00 pm The Women’s Virtual Meet-up offers an Ernestine Hambrick, MD, Lectureship opportunity for everyone to renew friendships CME Credit Hours: .75 and make new contacts. While the focus of the meet-up is to hear from exceptional speakers CNE Credit Hours: .75 about unique challenges and opportunities Understanding the Business of Healthcare: specifically facing women in colorectal surgery, When to Say YES any Annual Meeting attendee who supports the advancement of women is welcome to attend. Susan Moffatt-Bruce, MD, PhD, MBA, FRCSC Chief Executive Officer, The Ohio State Trainees are particularly encouraged to attend, University as this will provide an opportunity to interact Columbus, OH with experienced colon and rectal surgeons from a variety of settings. Introduction: Elizabeth Wick, MD

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Tuesday, April 27, 2021 1:30 – 3:00 pm Director Kirk Ludwig, MD, Milwaukee, WI SYMPOSIUM: Complete Response after Neoadjuvant Therapy for Rectal 1:30 pm Introduction Cancer: Cases and Considerations Kirk Ludwig, MD, Milwaukee, WI CME Credit Hours: 1.5 1:35 pm Case #1 The Patient is So Young: Is This Dangerous? CNE Credit Hours: 1.5 Who Should Be Considered Current treatment for mid- and low rectal cancer for a Watch-and-Wait involves a multidisciplinary approach aimed at Approach? reducing local failure rates in the pelvis and Erin Kennedy, MD, PhD, Toronto, ON, potentially improving survival. For years, the Canada standard sequence has been neo-adjuvant chemotherapy and radiation therapy followed 1:54 pm Case #2 Looks Good, But Does Not by surgery, whether a low anterior resection Feel Perfect. or an abdominal perineal resection, followed How Can MR Imaging Help by a course of adjuvant chemotherapy. in Assessment of Tumor However, many studies have shown that up Response? to 25% of patients treated with neo-adjuvant Regina Beets-Tan, MD, PhD, Amsterdam, chemotherapy and radiation therapy have a Netherlands pathology report that shows no residual tumor. 2:08 pm Case #3 We Are So Close to a Given that neo-adjuvant treatments produce a Complete Response. complete response in a significant number of Can We Get There? patients and given that the operations offered How to Get to a Complete for these mid- and low lying rectal cancers can Response and Can We Get have a dramatic effect of a patient’s quality of From a Near-Complete life, there is growing enthusiasm for trying to Response to a Complete clinically identify patients who have had a Response? CH/RT, TNT, More complete response, and sparing them a major RT or Change Who We Treat? operation. Sphincter preservation has changed, Julio Garcia-Aguilar, MD, PhD, New York, NY potentially, to organ preservation, but there is still much to learn before not operating on 2:22 pm Case #4 The Tumor Looks Like It Has patients who are judged to have had a complete Regrown. Now What? response to their neo-adjuvant therapies Reasonable Plans for Watch- becomes the new paradigm. Colorectal surgeons and-Wait and What If There would like to offer resection to those who need is Tumor Regrowth? resection and safely not operate on those who Matthew Kalady, MD, Columbus, OH predictably have no tumor left in the pelvis. 2:36 pm Panel Discussion and Audience Objectives Questions At the conclusion of this session, participants 3:00 pm Adjourn should be able to: 1. Recognize what a complete response clinically and radiographically 2. Recognize what patients should be treated and how they should be treated when a complete response is the goal of therapy 3. Explain what a reasonable watch and wait strategy looks like and the consequence of tumor regrowth

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Tuesday, April 27, 2021 1:30 – 3:00 pm Co-Directors James Yoo, MD, Boston, MA SYMPOSIUM: So, You Want to Be an Elizabeth Wick, MD, San Francisco, CA Academic Colorectal Surgeon? Then 1:30 pm Introduction Come to this Session James Yoo, MD, Boston, MA CME Credit Hours: 1.5 1:40 pm Turning a Research Skill Set into an CNE Credit Hours: 1.5 Independent Research Program This symposium will discuss the key elements Amy Lightner, MD, Cleveland, OH needed to establish and maintain a successful 1:55 pm The Role of Mentorship and Getting career as an academic colorectal surgeon. a “K” Award Invited speakers from different career stages Alexander Hawkins, MD, Nashville, TN will discuss how they developed a research skill set, the importance of mentorship, tips to 2:10 pm Maintaining your Research Efforts – sustain an independent research program and Navigating Pitfalls to Keep it Going ways to achieve long-term career fulfillment Valentine Nfonsam, MD, Tucson, AZ and success. 2:25 pm Academic Longevity – The Art of Reinvention and Expanding Your Objectives Skillset At the conclusion of this session, participants Elizabeth Wick, MD, San Francisco, CA should be able to: 2:40 pm Panel Discussion, Question & Answer 1. Describe how to develop a research skill set that can lead to an independent research 3:00 pm Adjourn program 2. Recognize the importance of mentorship on career development 3. Explain how to overcome challenges to achieve academic longevity and career fulfillment

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Tuesday, April 27, 2021 1:30 – 3:00 pm 2:12 pm TP6 Short- and Long-term Outcomes of Intestinal Pouch PLENARY ABSTRACT SESSION VI: Creation in Obese, Ulcerative Inflammatory Bowel Disease Colitis Patients CME Credit Hours: 1.5 I. Leeds*1, S.D. Holubar1, T. Hull1, J. Church1, J. Lipman1, A. Lightner1, B. Sklow1, 1:30 pm Introduction S. Steele1; 1Cleveland, OH Jennifer Davids, MD, Worcester, MA Vitaliy Poylin, MD, Boston, MA 2:20 pm TP7 Inpatient Infliximab Therapy for Acute Crohn’s Disease Flare 1:32 pm TP1 Patients Undergoing Ileoanal A. Whitlock*1, I. Zakopoulos1, D. Wong1, J-Pouch Surgery Experience K.T. Crowell1, S. Kaul1, E. Messaris1; 1Boston, a Unique Syndrome: A Report MA from the Patient Reported Outcomes after Pouch Surgery 2:28 pm TP8 High Resolution Analysis of (PROPS) Delphi Consensus Colitis Associated Cancer Study In- vivo and In-vitro P.M. Cavallaro*1, N. Fearnhead2, I. Bissett3, Co-cultures S. Wexner4, S. Hendren5, P. Myrelid6, R.K. DeHaan*1, R. Fisher1, E. Huang1; L. Bordeianou1, O. PROPS Delphi Scientific 1Cleveland, OH Committee1; 1Boston, MA, 2Cambridge, 2:36 pm United Kingdom, 3Auckland, New TP9 Is Pelvic Sepsis After Zealand, 4Weston, FL, 5Ann Arbor, MI, Transabdominal Re-do IPAA 6Linkoping, Sweden Associated with Worse Functional Outcomes and 1:40 pm TP2 Increasing Experience with Quality of Life? LIFT Procedure in Crohn’s E. Esen*1, M. Grieco1, A. Erkan1, E. Aytac2, Disease Patients with Complex A. Sutter1, J. Esterow1, P. Lynn1, H.T. Kirat1, Anal Fistula F.H. Remzi1; 1New York, NY, 2Istanbul, T. Wood*1, A. Truong1, A. Mujukian1, Turkey K. Zaghiyan1, P. Fleshner1; 1Los Angeles, CA 2:44 pm TP10 A Prospective Single-Center 1:48 pm TP3 Tip of the J-Pouch Leaks: Comparative Study of Diagnosis, Management and Transabdominal and Transanal Long-term Pouch Survival Ileal Pouch-Anal Anastomosis. R. Rajamanickam*1, E. Gorgun1, M.A. Has the Bar Been Raised? Valente1, A. Lightner1, T. Hull1, J. Church1, L. Park*1, K. Zaghiyan1, P. Fleshner1; 1West S. Steele1, S.D. Holubar1; 1Cleveland, OH Hollywood, CA 1:56 pm TP4 Stoma-less Ileal-Pouch-Anal- 2:52 pm TP11 Synoptic Reporting Necessary Anastomosis is Not Associated for Crohn’s Disease Surgery? with Increased Long-term Variability in Operative Pouch Failure Rates in Patients Reports Across Inflammatory with Ulcerative Colitis Bowel Disease Referral Centers E. Olecki*1, A.P. Kronfli1, K.A. Stahl1, A. Mujukian*1, K. Zaghiyan1, A. Truong1, S. King1, N. Razavi1, W. Koltun1; 1Hershey, PA E. Steinhagen2, P.S. Vaidya2, A. Lightner2, F. Morin3, A. de Buck van Overstraeten3, 2:04 pm TP5 High Amplitude Peristaltic P. Fleshner1; 1Los Angeles, CA, 2Cleveland, Contractility: Another Factor OH, 3Toronto, ON, Canada Impacting IPAA Function? J. Stem*1, E. Carchman1, C. Heise1, 3:00 pm Adjourn N. Marka1, B. Harms1; 1Madison, WI

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Tuesday, April 27, 2021 1:30 – 3:00 pm 1:55 pm QS55 Use of a 5-Item Modified Frailty Index for Assessing QUICK SHOTS IV: Inflammatory Bowel Outcomes after Hartmann Disease, and Benign Abdominal Feversal: An ACS- NSQIP Disease Study 1 1 1 CME Credit Hours: 1.5 D.C. Palange* , A. Ata , D. Chismark , J. Canete1, B.T. Valerian1, E.C. Lee1; 1:30 pm Introduction 1Menands, NY Jeffrey Barton, MD, New Orleans, LA 2:00 pm David Kleiman, MD, Burlington, MA QS56 A National Inpatient Sample (NIS) Analysis of Racial 1:35 pm QS51 Colectomy for Diverticulitis: Disparities After Segmental Contributing Factors for Colectomy for Inflammatory Readmission Colorectal Diseases T. Jerome*1, E. Thompson1, K. Bakia1, J. Frieder*1, C. Ortiz Gomez1, A. Arias1, E. Krall1, V. Nfonsam1; 1Tucson, AZ F. De Stefano1, L. Montorfano1, F. Ferri1, S. Wexner1, E.C. Lee1, H. Gilshtein1, 1:40 pm QS52 Keep Them on the Table: R. Rosenthal1, J.K. Bohl2, N. Wieghard2, Improved Outcomes After E. Rivet2, J. Peysha2, S. Sharp2; 1Weston, Minimally Invasive FL, 2Richmond, VA Colectomy Despite Longer Operative Times in High- 2:05 pm QS57 Is Bariatric Surgery a Risk Diverticulitis Patients Protective Factor to Avoid S.B. Jochum*1, A. Becerra1, Y. Zhang1, Recurrent Diverticulitis in H.R. Govekar1, D.M. Hayden1, T.J. Obese Patients? Saclarides1, A.R. Bhama1; 1Chicago, IL I. Setton*1, F.L. Okida1, H. Liang1, E. Lomenzo1, G. Dasilva1, R. Rosenthal1, 1:45 pm QS53 Colectomy in Patients with S. Wexner1; 1Weston, FL Liver Disease: Albumin- Bilirubin Score Accurately 2:10 pm QS58 Comprehensive Assessment Predicts Outcomes of Quality of Life and S.M. Kling*1, G. Taylor1, A.M. Fagenson1, Functional Outcomes After J. Poggio1, M. Philp1, H. Ross1, H.A. Pitt2, Transanal Ileal Pouch-Anal K.N. Lau1; 1Philadelphia, PA, 2New Anastomosis: A Prospective Brunswick, NJ Single-Center Experience L. Park*1, K. Zaghiyan1, P. Fleshner1; 1West 1:50 pm QS54 To Divert or Not? A Hollywood, CA Coarsened Exact Matched Cohort Comparing Primary 2:15 pm QS59 Redo Ileocolic Resection is Anastomosis with or Not an Independent Risk Without Diversion for Acute Factor for Anastomotic Leak Perforated Diverticulitis in in Recurrent Crohn’s Disease the Emergency Setting S. Yang*1, M. Camargo1, A. Lightner1, Using the ACS-NSQIP J. Lipman1, M.A. Valente1, T. Hull1, S. Steele1, Database S.D. Holubar1; 1Cleveland, OH 1 1 F. Abdul Raheem* , D. Marinescu , 2:20 pm 1 1 QS60 Significant Decrease in the M. Abou Khalil , N. Wong-Chong , Incidence of Ileoanal A. Pang1, N. Morin1, C. Vasilevsky1, Anastomosis Surgery: M. Boutros1; 1Montreal, QC, Canada Analysis of the ACS NSQIP Database M. Parikh*1, J. Lucking1, J.R. Monson1, J. Wright1, M. Soliman1, B.A. Orkin1; 1Orlando, FL

47 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Tuesday, April 27, 2021

Inflammatory Bowel Disease, and Benign 2:45 pm QS65 Are Patients Undergoing Abdominal Disease continued Ileocolic Resection for Crohn’s Disease Meeting the 2:25 pm QS61 Frailty is a Stronger Current Standards for Predictor Than Age for Surveillance and Recurrence Post-Operative Morbidity in Prevention? Crohn’s Disease F. Rouleau Fournier*1, Q. Parker1, T. Phang1, 1 1 1 J. Wolf* , T. Hassab , S. Svoboda , M. Raval1, A. Karimuddin1, A. Roshan1, 1 1 1 C. D’Adamo , M. Katlic ; Baltimore, MD K. Yoo1, G. Rosenfeld1, C. Brown1; 1 2:30 pm QS62 Mental Health Disorders in Vancouver, BC, Canada IBD Patients: The Effect on 2:50 pm Discussion and Commentary Surgical Outcomes Jeffrey Barton, MD, New Orleans, LA U.R. Phatak*1, A. Giron1, L. Merlotti1, David Kleiman, MD, Burlington, MA A. Kim1, J.F. Hall1, J. Favuzza1; 1Boston, MA Jonathan Laryea, MD, Little Rock, AR 2:35 pm QS63 Perioperative Use of NSAIDs 3:00 pm Adjourn and the Risk for Short-term Endoscopic Recurrence in 3:00 – 3:15 pm Crohn’s Disease Patients I.A. Gaytan Fuentes*1, C. Cordova-Cassia1, Virtual Engagement Break, Join us K.T. Crowell1, A. Fabrizio1, T.E. Cataldo1, at ASCRS Central in the Exhibit Hall!! 1 1 E. Messaris ; Brookline, MA Visit the exhibit hall and interact with exhibitors 2:40 pm QS64 Patient Preferences in or drop by ASCRS Central to enjoy some fitness Surgical vs. Medical bytes! Don’t forget to visit the Networking Management of Lounge where you can chat with your Inflammatory Bowel colleagues. Disease: A Discrete Choice Experiment 3:15 – 4:15 pm B.E. Haac*1, U. Wong2, A. Yang3, J. Deitschel4, A.C. Bafford2; 1New York, NY, Deep Roots Video 2Baltimore, MD, 3Bethesda, MD, 4Wright- Presidential Address Patterson AFB, OH CME Credit Hours: 1.0 The Curmudgeon and the Categorical Imperative Neil H. Hyman, MD Professor of Surgery Section Chief, Colon and Rectal Surgery Co-Director, Digestive Diseases Center The University of Chicago Medicine Chicago, IL Introduction: Peter Cataldo, MD

4:15 – 4:30 pm Virtual Engagement Break, Join us at ASCRS Central in the Exhibit Hall!

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Tuesday, April 27, 2021 4:30 – 6:00 pm Game Show: ASCRS JeoPARODY (Non-CME) Host Sean Langenfeld, MD, Omaha, NE Director Emily Huang, MD, Med, Columbus, OH Join your colleagues for a night of laughs while they play a team version ASCRS JeoPARODY! Team A and Team B go head to head for 2 rounds of intense colorectal and ASCRS focused questions and answers. Who takes home the title of ASCRS JeoPARODY Champion?....you’ll have to tune in to see!

TEAM A TEAM B Sonia Ramamoorthy, MD, La Jolla, CA Team Captain Joshua Bleier, MD, Philadelphia, PA Team Captain Joseph Carmichael, MD, Orange, CA Participants Lillias Maguire, MD, Ann Arbor, MI Participants Peter Marcello, MD, Burlington, MA Karen Zaghiyan, MD, Los Angeles, LA Justin Maykel, MD, Worcester, MA Jorge Marcet, MD, Tampa, FL Jennifer Paruch, MD, New Orleans, LA Steven Wexner, MD, PhD, Weston, FL

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Daily Schedule Wednesday, April 28, 2021 Exhibit Hall Open: 7:00 am – 3:30 pm Industry Representatives available for Live Chat: 11:30 am – 12:30 pm Ongoing Video Room: 7:00 am – 3:30 pm ePosters: 7:00 am – 3:30 pm 9:00 – 10:30 am 9:20 am WP3 Unbundling Bundles: Evaluating the Effectiveness PLENARY ABSTRACT SESSION VII: of Individual Components of a Best of 2020 (I) Colorectal Surgical Site CME Credit Hours: 1.5 Infection (SSI) Reduction Bundle in a Statewide 9:00 am Introduction Collaborative Emily Carter Paulson, MD, Philadelphia, PA 1 1 1 Timothy Ridolfi, MD, Milwaukee, Wi C.R. Schlick* , R. Huang , B.C. Brajcich , A.L. Halverson1, A. Yang1, L. Kreutzer1, K.Y. 2020 New England Society of Colon Bilimoria1, M.F. McGee1; 1Chicago, IL & Rectal Surgeons Award 9:28 am WP4 Correlation of Colorectal 9:04 am WP1 A Prospective Randomized Surgical Skill with Patient Trial of Transversus Abdominis Outcomes – A Cautionary Tale Plane Intraoperative Block with 1 1 Bupivacaine Against Liposomal A.E. Kanters* , S. Evilsizer , S. Regenbogen1, S. Hendren1, Bupivacaine: The TINGLE Trial D.A. Campbell1, J.B. Dimick1, J.C. Byrn1; A. Truong*1, P. Fleshner1, J. Mirocha1, H. Tran1, 1Ypsilanti, MI R. Shane1, K. Zaghiyan1; 1Los Angeles, CA 9:36 am WP5 Improved Morbidity and 2020 Ohio Valley Society of Colon & Gastrointestinal Restoration Rectal Surgeons Award Rates without Compromising 9:12 am WP2 Perfusion Assessment in Left- Survival Rates for Diverting Sided/Low Anterior Resection Loop Ileostomy with Colonic (PILLAR III): A Randomized, Lavage vs. Total Abdominal Controlled, Parallel, Colectomy for Fulminant Multicenter Study Assessing Clostridioides difficile Colitis: Perfusion Outcomes with A Multicenter Retrospective PINPOINT Near-Infrared Cohort Study Fluorescence Imaging in Low M. Abou Khalil*1, C. Vasilevsky1, Anterior Resection A.S. Liberman1, M. Poirier1, P. Montpetit1, M.D. Jafari*1, A. Pigazzi1, E.C. McLemore2, H. Sebajang1, N. Morin1, M. Demian1, M. Mutch3, E. Haas4, S. Rasheid5, A.D. Wait3, S. Demyttenaere1, R. Younan1, I.M. Paquette6, D. Margolin7, O. Bardakcioglu8, F. Schwenter1, M. Boutros1; 1Montreal, QC, B. Safar9, R.G. Landmann10, M. Varma11, Canada D. Maron12, J. Martz13, J. Bauer13, V. George14, J.W. Fleshman15, S. Steele16, M.J. Stamos1; 1Orange, CA, 2Los Angeles, CA, 3St Louis, MO, 4Houston, TX, 5Tampa, FL, 6Cincinnati, OH, 7New Orleans, LA, 8Las Vegas, NV, 9Baltimore, MD, 10Jacksonville, FL, 11San Francisco, CA, 12Weston, FL, 13New York, NY, 14Charleston, SC, 15Dallas, TX, 16Cleveland, OH

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Wednesday, April 28, 2021 patients are unique and their colorectal surgery care should be individualized and approached in a Best of 2020 (I) continued multidisciplinary fashion. 9:44 am WP6 Prospective Evaluation Objectives of a Standardized Opioid At the conclusion of this session, participants Prescribing Guidelines for should be able to: Anorectal Operations D.C. Meyer*1, S.S. Hill1, A. Resnick1, A.C. 1. Identify the most useful frailty screening Purkayastha1, J.S. Davids1, P.R. Sturrock1, tools at a surgeon’s disposal J.A. Maykel1, K. Alavi1; 1Worcester, MA 2. Recognize the key metrics of functional recovery and know how to measure them in 9:52 am WP7 When the P-Value Doesn’t Cut the post-operative patient population It: The Fragility Index Applied to Colorectal Surgery Related 3. Identify signs of delirium and methods to Randomized Controlled Trials prevent and treat delirium D. Nelms*1, H. Vargas2, R. Bedi2, D. Margolin2, 4. Explain how to identify the key metrics that J. Paruch2; 1La Crosse, WI, 2New Orleans, LA matter most to geriatric patients 10:00 am Adjourn Co-Directors Julia Berian, MD, Madison, WI 9:00 – 10:30 am Nicole Saur, MD, Philadelphia, PA SYMPOSIUM: The Challenge of Caring 9:00 am Introduction for Geriatric Patients – Adopting Novel Julia Berian, MD, Madison, WI Studies in Everyday Practice Nicole Saur, MD, Philadelphia, PA CME Credit Hours: 1.5 9:05 am Frailty Screening and Geriatric Co-Management: An Untapped CNE Credit Hours: 1.5 Resource to Decrease Post- Self-Assessment Credit: 1.5 Operative Morbidity and Mortality Despite growing evidence and discussion about Armin Shahrokni, MD, New York, NY frailty as a determinant of outcomes in older adults, 9:15 am What Really Matters to Geriatric chronological age is often still used to justify under- Patients: Patient Reported Outcomes or over treatment of these patients. Complicating Jessica Zerillo, MD, Boston, MA factors such as predisposition for complications or 9:25 am How to Measure and Prioritize Bowel delirium are not identified by a standard pre- Recovery in Geriatric Patients operative interview. Therefore, clinicians must screen Marylise Boutros, MD, Montreal, PQ, for frailty and identify patients who are at risk for Canada these events in the perioperative period. In addition, 9:35 am pre-operative optimization of functional status and Final Results of the GOSAFE Multi- comorbidities is essential to achieve post-operative Center International Study functional recovery. Evaluating Functional Recovery after Cancer Surgery in 1000 Patients When looking at treatment options, the standard of Isacco Montroni, MD, PhD, Faenza, Italy care does not always translate into the best tailored 9:45 am treatment when treating geriatric patients. How to Prevent and Treat Delirium in Personalized care is essential to treat the patient Post-Operative Patients Tammy Hshieh, MD, MPH, Boston, MA based on their disease state, fitness and individual treatment goals. A multidisciplinary approach is 9:55 am Leveraging the Literature to needed to prioritize the patients’ needs and wishes, Establish and Maintain a Geriatric rather than conform to the physicians’ skills. Colorectal Surgery Program Nicole Saur, MD, Philadelphia, PA We will highlight how surgeons can use past studies and experiences to build a multidisciplinary team to 10:05 am Panel Discussion take care of geriatric patients in their everyday 10:30 am Adjourn practices. From all angles, it is clear that older adult

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Wednesday, April 28, 2021 9:00 – 10:30 am 9:15 am Robotic Right Hemicolectomy Greta Bernier, MD, Renton, WA SYMPOSIUM: Video Based Education 9:25 am Discussion Premiers: Robotic and Laparoscopic Techniques 9:35 am Laparoscopic LAR Sharon Stein, Cleveland, OH CME Credit Hours: 1.5 9:45 am Robotic LAR CNE Credit Hours: 1.5 Jose Guillem, MD, MPH, MBA Chapel Hill, NC The field of colon and rectal surgery is 9:55 am constantly evolving. A better understanding of Discussion the pathophysiology and natural history of the 10:05 am Laparoscopic Sigmoid Resection colorectal diseases enables us to tailor our Marco Bertucci Zoccali, MD, New York, NY surgical approaches to achieve the best clinical 10:15 am Discussion results with the least disruption of quality of life. There is no doubt that the future of colon 10:30 am Adjourn and rectal surgery is in minimally invasive techniques that are in constant evolution. 9:00 – 10:30 am As the national organization with a very strong SYMPOSIUM: Best of the Diseases of the international reputation, it is our responsibility to provide educational tools for our trainees as Colon & Rectum Journal well as for surgeons in practice to learn new CME Credit Hours: 1.5 techniques, to master and improve our skills CNE Credit Hours: 1.5 and to generate new ideas. This symposium is designed for the practicing This symposium will focus on minimally invasive colorectal surgeon who has a desire to stay videos of commonly performed colon and up-to-date on the latest in the management of rectal procedures, not to showcase the rare and colon and rectal diseases. Due to increasing unusual cases, but rather to illustrate in a demands of daily practice, the ability to stay standardized fashion the key steps. Narration current on the highest quality and most-cited will be given live during the presentation in a publications can be difficult. In this symposium, very simple and didactic fashion. A brief we will review and summarize the most highly discussion will follow to further highlight the cited papers from the Diseases of the Colon and key points of the operation, describing the Rectum over the last two years. Presentations alternative approaches and potential pitfalls. and discussion will focus on study design and Objectives results, practical implications of the data, and a critical review of submitted work. At the conclusion of this session, participants should be able to: Objectives 1. Recall key parts of a given operation At the conclusion of this session, participants 2. Describe the alternative surgical approaches should be able to: 3. Avoid the potential pitfalls associated with 1. Describe the basics of the top papers the operation illustrated published in the DC&R 2. Distinguish the qualities of a manuscript that Director provides value to the practicing surgeon Alessandro Fichera, MD, Dallas, TX 3. Identify further questions that warrant 9:00 am Introduction additional research Alessandro Fichera, MD, Dallas, TX 4. Identify at least one key point from the 9:05 am Laparoscopic Right Hemicolectomy presentations that will guide further research Giovanni Dapri, MD, Brussels Belgium or change practice patterns for the care of patients with colorectal disease

52 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Wednesday, April 28, 2021 Best of the Diseases of the Colon & Rectum 10:45 – 11:30 am Journal continued Harry E. Bacon, MD, Lectureship Director CME Credit: .75 Susan Galandiuk, MD, Louisville, KY CNE Credit Hours: .75 9:00 am Introduction Climbing Mount Kilimanjaro: Reflections Susan Galandiuk, MD, Louisville, KY From a Surgeon’s Journey 9:10 am The Impact of Muscle and Adipose Maher Abbas, MD Tissue on Long-term Survival in Professor of Surgery Dubai Colorectal Clinic Patients with Stage I to III Colorectal United Arab Emirates Cancer Jessica Hopkins, MD, Edmonton, Alberta, Introduction: Thomas Read, MD Canada 9:25 am Achieving a Complete Clinical 11:30 am – 12:30 pm Response After Neoadjuvant Virtual Engagement Break, Join us Chemoradiation That Does Not at ASCRS Central in the Exhibit Hall! Require Surgical Resection: It May Take Longer Than You Think! Visit the exhibit hall and interact with exhibitors Rodrigo Oliva Perez, MD, PhD, São Paulo, or drop by ASCRS Central to enjoy some fitness Brazil bytes! Don’t forget to visit the Networking Lounge where you can chat with your 9:40 am Risk of Invasive Anal Cancer in colleagues. HIV-Infected Patients with High- Grade Anal Dysplasia: A Population- Industry Representatives available for Live Chat: Based Cohort Study 11:30 am – 12:30 pm Keith Sigel, MD, New York, NY Industry Education Booth – Live Symposium 9:55 am Prolonged Postoperative Ileus • Ethicon Industry Education Symposium Significantly Increases the Cost of • Natera Inpatient Stay for Patients Undergoing Elective Colorectal Surgery: Results of a Multivariate 12:30 – 1:15 pm Analysis of Prospective Data at a PLENARY ABSTRACT SESSION VIII: Single Institution Ian Bissett MD, Auckland, New Zealand Best of 2020 (II) CME Credit: .75 10:10 am Does Coffee Intake Reduce Postoperative Ileus After 12:30 pm Introduction Laparoscopic Elective Colorectal Scott Regenbogen, MD, MPH, Ann Arbor, MI Surgery? A Prospective, Randomized Julia Saraidaridis, MD, Burlington, MA Controlled Study: The Coffee Study Antonio Nocito, MD, Zurich, Switzerland 2020 Canadian Society of Colon & Rectal Surgeons Award 10:30 am Adjourn 12:33 pm WP10 How Does Microsatellite Instability Affect Prognosis in Stage 10:30 – 10:45 am II Colon Cancer With High-Risk Virtual Engagement Break, Join us Features? P.M. Cavallaro*1, C. Stafford1, C.E. Cauley1, at ASCRS Central in the Exhibit Hall! D. Berger1, L. Bordeianou1, H. Kunitake1, T. Francone1, R. Ricciardi1; 1Boston, MA

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Wednesday, April 28, 2021 12:30 – 2:00 pm Best of 2020 (II) continued SYMPOSIUM: Anorectal Controversies: 2020 Chicago Society of Colon & Let’s Get to the Bottom of This Rectal Surgeons Durand Smith, MD, CME Credit Hours: 1.5 Award CNE Credit Hours: 1.5 12:40 pm WP11 High-Risk HPV Testing in Anorectal disorders are some of the most Anal Pap Smear: Can It common pathologies seen in a colon and rectal Optimize the Screening for surgery practice. These entities can have a Anal Cancer? major impact on patients’ lives sometimes C.M. Kimura*1, C.R. Nahas1, E. Vieira da leading to significant morbidity. When Silva Filho1, V. Lacerda Ribeiro1, F. Ferraz de Paes Alcantara2, A. Mendes Paiva1, I. operating on these complex conditions, Cecconello1, S.C. Nahas1; 1São Paulo, São including fistula, hemorrhoids, fissures and Paulo, Brazil, 2São Paulo, São Paulo, Brazil pilonidal cysts, many options are available to the surgeon. With the multitude of options, 12:47 pm WP12 Incidence and Management how are practitioners making decisions of Anal Transitional Zone regarding operative treatment? When Neoplasia in Patients with controversy exists over the best option, how do Familial Adenomatous we tailor the treatment to the specific patient? Polyposis Patients with these conditions comprise a large C. Lee*1, M. Kalady1, M. Abbass1, J. Church1; portion of our practice. For example, in 2004, 1 Cleveland, OH the National Institutes of Health noted that the 12:54 pm WP13 Financial and Occupational diagnosis of hemorrhoids was associated with Impact of Low Anterior 3.2 million ambulatory care visits, 306,000 Resection Syndrome in hospitalizations, and two million prescriptions Rectal Cancer Survivors in the United States. In depth knowledge of R. Garfinkle*1, A. Ky1, A. Singh1, N. Morin1, these disease processes and the various G. Ghitulescu1, J. Faria1, C. Vasilevsky1, M. treatment options are essential for proper Boutros1; 1Montreal, QC, Canada management. In this symposium, we will highlight some of these controversies in 1:01 pm WP14 Quality of Life Assessment treatment and guide practitioners to make in Patients with Low choices that may not be in their standard Anterior Resecton Syndrome arsenal. after Transanal Irrigation B. Deoti1, F. Rodrigues1, K.C. Buzatti1, R.G. Objectives 1 1 Campanati* , M.M. Profeta da Luz , R. At the conclusion of this session, participants Gomes da Silva1, A. Lacerda Filho1; 1Belo should be able to: Horizonte, Minas Gerais, Brazil 1. Describe how to operatively manage chronic 1:08 pm WP15 Perioperative Blood anal fissures Transfusions are Associated with Worse Overall Survival 2. Recognize different treatment paths for but not Disease-Free grade III internal hemorrhoids Survival After Curative 3. Assess the utility and critically examine the Rectal Cancer Resection: A evidence for anal dysplasia screening Propensity Matched Analysis 4. Describe different management strategies D. Hanna*1, A.C. Gamboa2, G. Balch2, S. for pilonidal disease 3 4 Regenbogen , J. Holder-Murray , S. 5. Examine the utility and efficacy of cutting 5 6 1 Abdel-Misih , M. Silviera , A. Hawkins ; seton for anal fistula 1Nashville, TN, 2Atlanta, GA, 3Ann Arbor, MI, 4Pittsburgh, PA, 5Stony Brook, NY, 6St. Louis, MO 1:15 pm Adjourn

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Wednesday, April 28, 2021

Anorectal Controversies continued career satisfaction and enhanced enjoyment of life, and it may also be a hedge against career Co-Directors burn-out. Ariane Abcarian, MD, Chicago, IL Lilian Chen, MD, MSEd, Boston, MA Objectives At the conclusion of this session, participants 12:30 pm Introduction should be able to: Ariane Abcarian, MD, Chicago, IL Lilian Chen, MD, MSEd, Boston, MA 1. Recognize potential opportunities for establishing a CRS practice in an unexpected 12:35 pm My Doctor Says I Have Hemorrhoids! locale: rural/underserved area versus private – Treatment of Grade 3 Hemorrhoids practice in an intensely populated metropolis Gifty Kwakye, MD, MPH, Ann Arbor, MI 2. Identify ways of overcoming the challenges 12:50 pm Treatment of AIN3 – What are the of establishing a CRS practice in an Guidelines? unexpected locale: rural/underserved area Terrah Paul Olson, MD, Atlanta, GA versus private practice in an intensely 1:05 pm The Use of Cutting Setons. Is the Old populated metropolis New Again? 3. Explain the significant rewards, both tangible Michael Valente, DO, Cleveland, OH and intangible, of practicing CRS in an unexpected locale: rural/underserved area 1:20 pm Surgical Management of Chronic versus an intensely populated metropolis Anal Fissures Kellie L. Mathis, MD, Rochester, MN Co-Directors 1:35 pm Pilonidal Problems: Cystectomy or William Cirocco, MD, Phoenix, AZ Flap? Lynda Dougherty, MD, Oakland, MD Jeffrey Sternberg, MD, San Francisco, CA 12:30 pm Introduction 1:50 pm Discussion William Cirocco, MD, Phoenix, AZ Lynda Dougherty, MD, Oakland, MD 2:00 pm Adjourn 12:35 pm Big (Surgical Specialist) Fish in a 12:30 – 2:00 pm Little Pond Michael Liu, MD, Cleveland, OH SYMPOSIUM: Alternate Career Options: 12:45 pm Head for the Hills From Manhattan to Rural America Lynda Dougherty, MD, Oakland, MD CME Credit Hours: 1.5 12:55 pm I’ll Take Manhattan CNE Credit Hours: 1.5 T. Cristina Sardinha, MD, New Hyde Park, NY Colorectal surgeons are scarce in smaller 1:05 pm Goodbye Yellow Brick Road towns, in part because of perceived barriers to William Cirocco, MD, Phoenix, AZ developing a successful CRS practice. 1:15 pm Furthermore, there has been a free-fall of Panel Discussion ASCRS members engaged in private practice, 2:00 pm Adjourn from an era of nearly 90% to < 50% of ASCRS membership. Establishing a CRS private practice or developing a colorectal surgical practice in a more rural, underserved area may be a viable career option and offer significant rewards for both the colorectal surgeon and the patients of the community they serve. Colorectal surgeons in these practices often accrue intangible benefits, such as heightened

55 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21 American Society of Colon & Rectal Surgeons Annual Scientific Meeting 2021

Wednesday, April 28, 2021 2:00 – 2:45 pm QUICK SHOTS: Best of 2020 2:17 pm QS193 Adding Narrow-Band Imaging to CME Credit: .75 Chromoendoscopy for the 2:00 pm Introduction Evaluation of Tumor Nicole Saur, MD, Philadelphia, PA Response to Neoadjuvant Matthew Whealon, MD, Orange, CA Therapy in Rectal Cancer 1 2 2 2020 Pennsylvania Society of Colon T. Konishi* , M. Ishioka , A. Chino , S. Nagayama2, T. Akiyoshi2, T. Yamaguchi2, & Rectal Surgeons Award T. Nagasaki2, Y. Fukunaga2, J. Fujisaki2; 2:02 pm QS190 CD4/CD8 Ratio as a Marker 1Houston, TX, 2Tokyo, Japan for Increased Risk of High- grade Anal Dysplasia and 2:22 pm QS194 Hand-Sewn Versus Stapled Anal Cancer in Veterans Ileal Pouch Anal Anastomoses in Living with HIV: A Regional Re-Do Setting: Indications, Patient Retrospective Cohort Study Characteristics, Operative, Function, C.B. Geltzeiler*1, Y. Xu1, E. Carchman1, and Quality of Life Outcomes 1 1 2 1 E. Lawson1, C. Heise1, R. Striker1, C. Voils1; E. Esen* , A. Erkan , E. Aytac , J. Esterow , 1 1 1 1Madison, WI M.J. Grieco , H.T. Kirat , F.H. Remzi1; New York, NY, 2Istanbul, Turkey 2020 Southern California Society of Colon & Rectal Surgeons Award 2:27 pm QS197 Readiness of Graduating 2:07 pm QS191 Short and Long-term General Surgery Residents Outcomes Following to Perform Colorectal Surgical Resection of Procedures Presacral Tumors: A Single J.V. Vu* 1, B.C. George1, S.J. Rivard1, 1 1 1 Center Series of 133 Patients M. Clark , S. Regenbogen , G. Kwakye ; 1Ann Arbor, MI R. Pride*1, P. Davis2, S. Kelley2, K.L. Mathis2, D. Larson2, A. Merchea2, E. Dozois2; 2:32 pm Discussion and Commentary 1 2 Carmel, IN, Rochester, MN Nicole Saur, MD, Philadelphia, PA 2:12 pm QS192 Careful Examination of Matthew Whealon, MD, Orange, CA Venous Invasion and 2:37 pm Adjourn Subsequent Chemotherapy Improves Oncologic Outcomes in Stage IIA Colon Cancer: A Scenario of Venous Invasion- Chemotherapy-Survival H. Kim*1, G. Choi1, J. Park1, S. Park1, A. Seo1, S. Cho1; 1Daegu, Korea (the Republic of)

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Wednesday, April 28, 2021 2:00 – 3:15 pm 2:33 pm V5 Trigone-Sparing Robotic Anterior Extramesorectal Abstract Video Session Excision (EME) in an CME Credit Hours: 1.25 Overweight Male S.J. Marecik*1, D. Schlund1, J. Pearl1, C. 2:00 pm Introduction Donahue1, K. Kochar1, J.J. Park1; 1Park Brian Bello, MD, Washington, DC Ridge, IL Todd Francone, MD, Newton, MA 2:40 pm V6 Robotic Transanal Minimally 2020 Barton Hoexter, MD Best Video Invasive Surgery: Award Rectouretheral Fistula Closure 2:05 pm V1 Endorectal Mucosal N. Naik*1, A. Allawi1, K. Hebert1, B. Viers1, Advancement Flap by S. Kelley1, K.T. Behm1; 1Rochester, MN Transanal Endoscopic Microsurgery 2:47 pm V7 Technical Tips and Tricks of J. Frezin*1, P. Bouchard1, A. Bouchard1; Colonic Interposition 1Quebec, QC, Canada R.A. Malizia*1, P. Lu1, J. Yoo1, N. Melnitchouk1, J. Irani1, J. Wang1, R. Bleday1, 2:12 pm V2 Laparoscopic Lateral Pelvic J. Wee1, J. Goldberg1; 1Medford, MA Lymph Node Dissection for Rectal Cancers – Key 2021 Barton Hoexter, MD Best Video Anatomical and Technical Award Details! 2:54 pm V8 Laparoscopic Ventral Mesh S. Patel*1, V. Sukumar1, S.S. Bankar1, Rectopexy for Recurrent Rectal J. Rohila1, A.L. Desouza1, A. Saklani1; Prolapse 1 Mumbai, India G. Filosa*1, G. Chitragari1, J. Ogilvie1; 1 2:19 pm V3 Prostate Sparing Robotic Grand Rapids, MI Assisted LAR with Bilateral 3:01 pm V9 Modified Duhamel Procedure Removal of Seminal Vesicles for Adult Hirschsprung’s C.J. Newton*1, R. Essani1; 1Temple, TX Disease 1 1 1 2:26 pm V4 The Robotic Natural Orifice M.P. Villanueva* , M.S. Onglao , M.J. Lopez ; 1Manila, Metro Manila, Philippines IntraCorporeal Anastomosis with Extraction (NICE) 3:08 pm V10 The Cleft Lift Procedure, a Procedure: The NICE Rotation and Advancement Procedure with Intracorporeal Flap for Pilonidal Disease: Handsewn Anastomosis The Pilonidal RAF Procedure E. Haas*1, R.L. Saracho1, T. Reif de Paula1, J.A. Sternberg*1; 1San Francisco, CA M.S. Smith1, J. LeFave1; 1Houston, TX 3:15 pm Adjourn

Call for Abstracts Abstract Submission Site Opens: May 2021 Abstract Submission Site Closes: October 17 11:59 pm Eastern Time

57 Session Guide (Back to Schedule at a Glance) All Times are Pacific Daylight Time (PDT) www.fascrs.org #ASCRS21