50Th Annual Meeting
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THE SOCIETY FOR SURGERY OF THE ALIMENTARY TRACT 50TH ANNUAL MEETING May 30 – June 3, 2009 McCormick Place Chicago, Illinois PROGRAM BOOK ABSTRACT SUPPLEMENT THE SOCIETY FOR SURGERY OF THE ALIMENTARY TRACT Table of Contents Schedule-at-a-Glance ............................................................................................................... 2 Monday Plenary and Video Session Abstracts......................................................................... 4 PROGRAM BOOK ABSTRACT SUPPLEMENT Tuesday Plenary, Video, and Quick Shot Session Abstracts .................................................. 15 FIFTIETH ANNUAL MEETING Wednesday Plenary, Video, and Quick Shot Session Abstracts............................................. 36 McCormick Place Monday Poster Session Abstracts........................................................................................... 51 Chicago, Illinois May 30–June 3, 2009 Tuesday Poster Session Abstracts ........................................................................................... 95 Wednesday Poster Session Abstracts.................................................................................... 135 PLEASE BRING THIS PROGRAM BOOK ABSTRACT SUPPLEMENT WITH YOU TO THE ANNUAL MEETING. 12:45 PM 12:30 PM 12:15 PM 12:00 PM 11:45 AM 11:30 AM 11:15 AM 11:00 AM 10:45 AM 10:30 AM 10:15 AM 10:00 AM 5:45 PM 5:30 PM 5:15 PM 5:00 PM 4:45 PM 4:30 PM 4:15 PM 4:00 PM 3:45 PM 3:30 PM 3:15 PM 3:00 PM 2:45 PM 2:30 PM 2:15 PM 2:00 PM 1:45 PM 1:30 PM 1:15 PM 1:00 PM 9:45 AM 9:30 AM 9:15 AM 9:00 AM 8:45 AM 8:30 AM 8:15 AM 8:00 AM 7:45 AM 7:30 AM 7:15 AM 7:00 AM THE SOCIETY FOR SURGERY OF THE ALIMENTARY TRACT OF THE ALIMENTARY THE SOCIETY FOR SURGERY SUNDAY SSAT SCHEDULE-AT-A-GLANCE SSAT S406b S505a S505b S504 S503 POSTGRADUATE COURSE PLENARY SESSION III CLINICAL CONTROVERSIES IN WARD GI SURGERY ROUNDS: DEBATES A: Bowel BILIARY Prep; NOTES vs Single DISEASE Port Surgery (PLENARY SESSION II) (PLENARY SESSION I) SSAT/ASCRS JOINT OPENING SESSION GUEST ORATION PRESIDENTIAL PRESIDENTIAL PRESIDENTIAL 2 SYMPOSIUM PLENARY B PLENARY A ADDRESS MONDAY VIDEO SESSION I: Clinical HPB / Upper GI South Hall POSTER SESSION I (authors available @ posters 12:00 PM - 2:00 PM) DDW CCS: DDW CCS: Hepatic Resection Barrett's and for Liver Masses Dysplasia MEET-THE- Other PROFESSOR DDW CCS: LUNCHEONS DDW CCS: Pancreatic Achalasia Cancer 12:45 PM 12:30 PM 12:15 PM 12:00 PM 11:45 AM 11:30 AM 11:15 AM 11:00 AM 10:45 AM 10:30 AM 10:15 AM 10:00 AM 5:45 PM 5:30 PM 5:15 PM 5:00 PM 4:45 PM 4:30 PM 4:15 PM 4:00 PM 3:45 PM 3:30 PM 3:15 PM 3:00 PM 2:45 PM 2:30 PM 2:15 PM 2:00 PM 1:45 PM 1:30 PM 1:15 PM 1:00 PM 9:45 AM 9:30 AM 9:15 AM 9:00 AM 8:45 AM 8:30 AM 8:15 AM 8:00 AM 7:45 AM 7:30 AM 7:15 AM 7:00 AM QUICK BASIC SCI S505a S505b S504 S503 PUBLIC POLICY SHOTS PLENARY PLENARY COMMITTEE SESSION SESSION V (PLENARY 30 – JUNE 3, 2009 • CHICAGO, IL 50TH ANNUAL MEETING • MAY PANEL II SESSION IV) CLINICAL CONTROVERSIES IN GI CLINICAL WARD SURGERY DEBATES B: QUICK WARD Synchronous Colorectal ROUNDS: Cancer Metastases; SHOTS ROUNDS: ANORECTAL Pancreatic Cancer SESSION I GASTRIC DISORDERS Resection TUMORS ANNUAL SSAT/AGA/ASGE STATE-OF- SSAT/AHPBA VIDEO SESSION II: BUSINESS STATE-OF-THE-ART THE-ART JOINT BREAKFAST AT MEETING CONFERENCE LECTURE SYMPOSIUM THE MOVIES TUESDAY WEDNESDAY VIDEO SESSION III: NOTES APPEN- DECTOMY South Hall POSTER SESSION II (authors available @ posters 12:00 PM - 2:00 PM) 3 DDW CCS: Bariatrics DDW CCS: MEET-THE- Other DDW CCS: GI Surgery PROFESSOR Hepatitis C in the Elderly LUNCHEONS DDW CCS: GI Emergencies TRANSLATIONAL S505a S505b S504 PLENARY SCI PLENARY SESSION VII (PLENARY SESSION VI) QUICK EDUCATION SHOTS COMMITTEE SESSION III PANEL VIDEO SESSION IV: SSAT/ISDS JOINT SSAT/SAGES JOINT NOTES ó SPA BREAKFAST LUNCHEON SYMPOSIUM SURGERY SYMPOSIUM South Hall POSTER SESSION III (authors available @ posters 12:00 PM - 2:00 PM) DDW CCS: MEET-THE- DDW CCS: Other Colonic Dysplasia PROFESSOR Pelvic Floor in IBD LUNCHEONS Abnormalities THE SOCIETY FOR SURGERY OF THE ALIMENTARY TRACT 50TH ANNUAL MEETING • MAY 30 – JUNE 3, 2009 • CHICAGO, IL an increased mortality in patients with CTx-associated steato- peripheral glucose uptake (M-Value), gut and pancreatic SSAT Plenary, Video, and hepatitis. We, therefore, analyzed our recent experience hormone secretion, and body composition, while control- ABSTRACTS with potential hepatic injury and its association with CTx ling for energy balance; and 2) delineate the same changes MONDAY Quick Shot Session Abstracts and morbidity in patients undergoing surgery for CRC-LM. after massive weight loss at 6 months after GB. Printed as submitted by the authors. METHODS: From 2001 to 2007 179 patients underwent METHODS: Non-diabetic morbidly obese patients were indicates a paper that is also being presented at the Residents & Fellows Research Conference. primary liver resection for CRC-LM. Sufficient non-tumorous randomized to GB followed by standardized calorie restriction Participation in and attendance at this conference is by invitation only. liver parenchyma could be re-evaluated for this study in (GB, n = 10) or to caloric restriction only (Diet, n = 10). 102 patients. In these 102 patients (66% male, median age Metabolic evaluations were done at baseline and at 15 62 years, median BMI 26, 8% diabetes (IDDM); prospective days. Patients randomized to the Diet group underwent perioperative database) liver injury was classified by an GB after completing the initial evaluation. The 10 GB Monday, June 1, 2009 experienced pathologist using established criteria for steatosis patients were evaluated again at 6 months post-operatively. and sinusoidal injury (SinDilat) and then compared with RESULTS: Baseline body composition, fasting insulin, and 8:15 AM – 9:15 AM preoperative CTx and postoperative outcome. 59% of the HOMA-IR did not differ between groups. During baseline S504 operations were (extended) hemihepatectomies (ExtRes), euglycemic hyperinsulinemic clamp, insulin resistance 41% segmental or atypical resections (LimRes). Before was profound in all subjects; average M-Value was about PRESIDENTIAL PLENARY resection 66% had received CTx (34% FU-based (FU), 20% one-third of that for lean controls (2.3 ± 0.5 vs. 7.3 ± 0.3 oxaliplatin-based (Oxa), 10% irinotecan-based (Iri) and 3% mg/kg/min, p < 0.01). At 15 days, body composition and (PLENARY SESSION I) Oxa + Iri. The interval between CTx and surgery was ≥ weight loss did not differ between groups (% Excess always six weeks. Weight Loss, EWL; Diet, 8.1 + 0.9 vs. GB, 10.1 + 0.9, P = RESULTS: Mortality was 3/102 (2.9%). Any complication 0.19). During a 5-hour meal test, only the GB group had 285 those in group 1. No perioperative leaks or deaths occurred occurred in 48%, hepatic insufficiency in 5.9%. Hepatic altered patterns of glucose kinetics, GIP, GLP-1 and insulin in either group. Group 1 patients reported significant steatosis > 20% was found in 35% (half of them with secretions. At 15 days, fasting insulin and HOMA-IR Effect of Multiple Pre-Operative Endoscopic improvements in SF-36 bodily pain, energy, social function, steatosis > 50%). Patients with a BMI > 25 had a higher decreased similarly in both groups. M-Values did not change Interventions on Outcomes After Laparoscopic and general health scores, while HRQOL in group 2 remained rate of steatosis > 20% (45% vs. 24%; p < 0.04). No risk in either group (Diet, 2.3 ± 0.4 vs. GB, 2.5 ± 0.5, P = 0.78), Heller Myotomy for Achalasia unchanged. Five patients (3.7%) were diagnosed with factor for grade 2 and 3 SinDilat was found. Although but average serum insulin concentrations during clamp Christopher W. Snyder*1, Ryan C. Burton2, Lindsay E. Brown2, symptomatic gastroparesis post-operatively. Surgical failure there was a tendency Oxa and Iri were not significantly decreased in the GB group (–22 ± 5 vs. –2 ± 6, P = 0.032). Manasi S. Kakade1, Mary T. Hawn1 rate was 14.2%, and was higher in group 2 vs. group 1 correlated with hepatic injury. Neither a CTx per se nor At 6 months, GB patients had significant weight loss (% EWL 1Department of Surgery, University of Alabama-Birmingham, (28.3% vs. 6.8%, p = 0.001). On logistic regression modeling the different CTx-regimens nor the extent of hepatic 52 + 4.1), the altered pattern of glucose kinetics and gut with adjustment for confounders, having >1 pre-operative Birmingham, AL; 2School of Medicine, University of Alabama- injury showed any influence on mortality, complication and pancreatic hormones secretions persisted, fasting endoscopic intervention was found to be a significant inde- rate or hepatic insufficiency. Patients with IDDM had a insulin and HOMA-IR decreased further, and only then did Birmingham, Birmingham, AL pendent predictor of surgical failure (OR = 5.26, 95% C.I. higher mortality (25% vs. 1% without IDDM); p < 0.03), M-values improve significantly (4.3 ± 0.4, p < 0.01 vs. GB OBJECTIVE: Laparoscopic Heller myotomy (LHM) provides 1.61–17.17, p = 0.006). complication rate (75% vs. 46%; p = 0.05) and a higher Group at baseline and 15 days). Average serum insulin more durable relief of achalasia symptoms than endoscopic CONCLUSIONS: Multiple pre-operative endoscopic inter- rate of hepatic insufficiency (25% vs. 4%; p < 0.05). concentrations during clamp remained low. pneumatic dilation or botulinum toxin injection. The role ventions are independently associated with a higher surgical Patients undergoing ExtRes also had a higher complication CONCLUSIONS: The decrease in fasting insulin and HOMA-IR of pre-operative endoscopic therapy in surgical candidates failure rate after LHM for achalasia, suggesting that re- rate than patients with LimRes (p < 0.02).