Golden Hour of Neonatal Life: Need of the Hour Deepak Sharma
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Airway Pressures and Volutrauma
Airway Pressures and Volutrauma Airway Pressures and Volutrauma: Is Measuring Tracheal Pressure Worth the Hassle? Monitoring airway pressures during mechanical ventilation is a standard of care.1 Sequential recording of airway pressures not only provides information regarding changes in pulmonary impedance but also allows safety parameters to be set. Safety parameters include high- and low-pressure alarms during positive pressure breaths and disconnect alarms. These standards are, of course, based on our experience with volume control ventilation in adults. During pressure control ventilation, monitoring airway pressures remains important, but volume monitoring and alarms are also required. Airway pressures and work of breathing are also important components of derived variables, including airway resistance, static compliance, dynamic compliance, and intrinsic positive end-expiratory pressure (auto-PEEP), measured at the bedside.2 The requisite pressures for these variables include peak inspiratory pressure, inspiratory plateau pressure, expiratory plateau pressure, and change in airway pressure within a breath. Plateau pressures should be measured at periods of zero flow during both volume control and pressure control ventilation. Change in airway pressure should be measured relative to change in volume delivery to the lung (pressure-volume loop) to elucidate work of breathing. See the related study on Page 1179. Evidence that mechanical ventilation can cause and exacerbate acute lung injury has been steadily mounting.3-5 While most of this evidence has originated from laboratory animal studies, recent clinical reports appear to support this concept.6,7 Traditionally, ventilator-induced lung injury brings to mind the clinical picture of tension pneumothorax. Barotrauma (from the root word baro, which means pressure) is typically associated with excessive airway pressures. -
Advanced Modes of Ventilation: Concerns for the OR
Scott, Benjamin K., MD Advanced Modes of Ventilation: Concerns for the OR WHAT I AM NOT GOING TO COVER ADVANCED MODES OF “Adaptive” Advanced Modes that focus on synchrony VENTILATION: ✪ Proportional assist CONCERNS FOR THE OR ✪ Adaptive Support ✪ Neurally Adjusted Ventilatory Assist BENJAMIN K. SCOTT, MD DEPARTMENT OF ANESTHESIOLOGY UNIVERSITY OF COLORADO SCHOOL OF MEDICINE Why? ✪ Evidence of benefit is lacking ✪ Generally interchangeable with standard intraop modes DISCLOSURES PATHOPHYSIOLOGY OF THE SICK LUNG 1. ARDS Ashbaugh and Petty: 1967 case series of 12 ICU patients ✪ Tachypnea and hypoxemia NONE ✪ Opacification on CXR ✪ Poor lung compliance ✪ Diversity of primary insult Ashbaugh DG, Bigelow DB, Petty TL et al. Acute Respiratory Distress in Adults. Lancet. 1967 LEARNING OBJECTIVES PATHOPHYSIOLOGY OF THE SICK LUNG ARDS: The Berlin Definition (c. 2011) 1. Review the pathophysiology of the diseased or injured lung 2. Understand recent strategies in mechanical ventilation, ARDS is an acute diffuse, inflammatory lung injury, leading to particularly focusing on “low‐stretch” and “open‐lung” increased pulmonary vascular permeability, increased lung weight, techniques. and loss of aerated lung tissue...[With] hypoxemia and bilateral radiographic opacities, associated with increased venous 3. Discuss strategies for OR management of patients on admixture, increased physiological dead space and decreased “advanced” vent modes lung compliance. 4. Apply these concepts to routine OR vent management The ARDS Definition Task Force*. Acute Respiratory Distress Syndrome: The Berlin Definition. JAMA. 2012;307(23):2526-2533 Scott, Benjamin K., MD Advanced Modes of Ventilation: Concerns for the OR PATHOPHYSIOLOGY OF THE SICK LUNG VENTILATING THE NON-COMPLIANT LUNG ARDS: The Berlin Definition (c. -
The Golden Hour of Trauma
Lecture 4 Feb 27, 2018 THE GOLDEN HOUR OF TRAUMA DAVID KALB, MD MERCY HOSPITAL, COON RAPIDS, MN DR. R ADAMS COWLEY • July 25, 1917 – October 27,1991 • American surgeon • Pioneer in emergency medicine and trauma care • “Father of Trauma Medicine” • Founder of U.S’s first trauma center at U of MD, 1958 • Leader in use of helicopters for med evac of civilians, from 1969 • Founded the nation’s first statewide EMS system in 1972 ©AllinaHealthSystem Lecture 4 Feb 27, 2018 DR. R ADAMS COWLEY GOLDEN HOUR • Coined by Dr. Cowley • “There is a golden hour between life and death. If you are critically injured you have less than 60 minutes to survive. You might not die right then; it may be three days or two weeks later – but something has happened to your body that is irreparable.” (from U of MD website) • “the first hour after injury will largely determine a critically-injured person’s chances for survival” (MD State Medical Journal 1975) ©AllinaHealthSystem Lecture 4 Feb 27, 2018 GOLDEN HOUR GOLDEN HOUR ©AllinaHealthSystem Lecture 4 Feb 27, 2018 •What does the data show?? EVIDENCE IN FAVOR OF THE GOLDEN HOUR • 1993 Journal of Trauma Sampalis et al • Total prehospital time over 60 minutes was associated with significant increase in odds of mortality • 1999 Journal of Trauma Sampalis et al • Reduced prehospital time associated with reduced odds of dying • When outcomes controlled for • Severity of injury • Age of population ©AllinaHealthSystem Lecture 4 Feb 27, 2018 EVIDENCE IN FAVOR OF THE GOLDEN HOUR • Acad Emerg Med 2002 Blackwell et al • EMS response -
The Basics of Ventilator Management Overview How We Breath
3/23/2019 The Basics of Ventilator Management What are we really trying to do here Peter Lutz, MD Pulmonary and Critical Care Medicine Pulmonary Associates, Mobile, Al Overview • Approach to the physiology of the lung and physiological goals of mechanical Ventilation • Different Modes of Mechanical Ventilation and when they are indicated • Ventilator complications • Ventilator Weaning • Some basic trouble shooting How we breath http://people.eku.edu/ritchisong/301notes6.htm 1 3/23/2019 How a Mechanical Ventilator works • The First Ventilator- the Iron Lung – Worked by creating negative atmospheric pressure around the lung, simulating the negative pressure of inspiration How a Mechanical Ventilator works • The Modern Ventilator – The invention of the demand oxygen valve for WWII pilots if the basis for the modern ventilator https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRI5v-veZULMbt92bfDmUUW32SrC6ywX1vSzY1xr40aHMdsCVyg6g How a Mechanical Ventilator works • The Modern Ventilator – How it works Inspiratory Limb Flow Sensor Ventilator Pressure Sensor Expiratory Limb 2 3/23/2019 So what are the goals of Mechanical Ventilation • What are we trying to control – Oxygenation • Amount of oxygen we are getting into the blood – Ventilation • The movement of air into and out of the lungs, mainly effects the pH and level of CO 2 in the blood stream Lab Oxygenation Ventilation Pulse Ox Saturation >88-90% Arterial Blood Gas(ABG) Po 2(75-100 mmHg) pCO 2(40mmHg) pH(~7.4) Oxygenation How do we effect Oxygenation • Fraction of Inspired Oxygen (FIO 2) – Percentage of the gas mixture given to the patient that is Oxygen • Room air is 21% • On the vent ranges from 30-100% • So if the patient’s blood oxygen levels are low, we can just increase the amount of oxygen we give them 3 3/23/2019 How do we effect Oxygenation • Positive End Expiratory Pressure (PEEP) – positive pressure that will remains in the airways at the end of the respiratory cycle (end of exhalation) that is greater than the atmospheric pressure in mechanically ventilated patients. -
Ischemic Time in Patients Treated with Primary Angioplasty
Journal of the American College of Cardiology Vol. 54, No. 23, 2009 © 2009 by the American College of Cardiology Foundation ISSN 0735-1097/09/$36.00 Published by Elsevier Inc. doi:10.1016/j.jacc.2009.08.023 et al. (1). De Luca et al. (3) also reported on the time EDITORIAL COMMENT dependence of survival with relation to ischemic time in patients treated with primary angioplasty. The infarct size curve in Figure 1A in Francone et al. (1) was very Ischemic Time similar to the curve reported by De Luca et al. (3)in terms of rate of mortality. With the paper by Francone et The New Gold Standard al. (1), we now have hard physiologic evidence that for ST-Segment Elevation ischemic times Ͼ90 min result in relatively little myo- Myocardial Infarction Care* cardial salvage. As we begin to consider other treatment strategies that could potentially reduce ischemic times, we must also Richard W. Smalling, MD, PHD consider whether there are patient subsets that should Houston, Texas have the most aggressive therapy, namely “high-risk patients.” De Luca et al. (4) found that survival was inversely proportional to ischemic time in high-risk patients but was not correlated with ischemic times in In this issue of the Journal, Francone et al. (1) report an low-risk patients. Additionally, in patients with patent analysis of the relationship between time from the onset infarct-related arteries on initial angiography, there was a of symptoms to reperfusion (ischemic time) in ST- low mortality rate, which was not related to ischemic segment elevation myocardial infarction (STEMI) pa- time. -
Lights and Siren Use by Emergency Medical Services (EMS): Above All Do No Harm
U. S. Department of Transportation National Highway Traffic Safety Administration Office of Emergency Medical Services (EMS) Lights and Siren Use by Emergency Medical Services (EMS): Above All Do No Harm Author: Douglas F. Kupas, MD, EMT-P, FAEMS, FACEP Submitted by Maryn Consulting, Inc. For NHTSA Contract DTNH22-14-F-00579 About the Author Dr. Douglas Kupas is an EMS physician and emergency physician, practicing at a tertiary care medical center that is a Level I adult trauma center and Level II pediatric trauma center. He has been an EMS provider for over 35 years, providing medical care as a paramedic with both volunteer and paid third service EMS agencies. His career academic interests include EMS patient and provider safety, emergency airway management, and cardiac arrest care. He is active with the National Association of EMS Physicians (former chair of Rural EMS, Standards and Practice, and Mobile Integrated Healthcare committees) and with the National Association of State EMS Officials (former chair of the Medical Directors Council). He is a professor of emergency medicine and is the Commonwealth EMS Medical Director for the Pennsylvania Department of Health. Disclosures The author has no financial conflict of interest with any company or organization related to the topics within this report. The author serves as an unpaid member of the Institutional Research Review Committee of the International Academy of Emergency Dispatch, Salt Lake City, UT. The author is employed as an emergency physician and EMS physician by Geisinger Health System, Danville, PA. The author is employed part-time as the Commonwealth EMS Medical Director by the Pennsylvania Department of Health, Bureau of EMS, Harrisburg, PA. -
The Golden Hour > How Time Shapes Airway Management > by Charlie Eisele,BS,NREMT-P
September 2008 The A supplement to JEMS (the Journal of Emergency Medical Services) Conscience of EMS JOURNAL OF EMERGENCY MEDICAL SERVICES Sponsored by Verathon Inc. ELSEVIER PUBLIC SAFETY The Perfect View How Video Laryngoscopy Is Changing the Face of Prehospital Airway Management A supplement to September 2008 JEMS, sponsored by Verathon Inc. 4 Foreword > To See or Not to See, That Is the Question > By A.J.Heightman,MPA,EMT-P 5 5 The Golden Hour > How Time Shapes Airway Management > By Charlie Eisele,BS,NREMT-P 9 The Video Laryngoscopy Movement > Can-Do Technology at Work > By John Allen Pacey,MD,FRCSc 11 ‘Grounded’ Care > Use of Video Laryngoscopy in a Ground 11 EMS System: Better for You, Better for Your Patients > By Marvin Wayne,MD,FACEP,FAAEM 14 Up in the Air > Video Laryngoscopy Holds Promise for In-Flight Intubation > By Lars P.Bjoernsen,MD,& M.Bruce Lindsay,MD 16 16 The Military Experience > The GlideScope Ranger Improves Visualization in the Combat Setting > By Michael R.Hawkins,MS,CRNA 19 Using Is Believing > Highlights from 72 Cases Involving Video Laryngoscopy at Martin County (Fla.) Fire Rescue > By David Zarker,EMT-P 21 Teaching the Airway > Designing Educational Programs for 21 Emergency Airway Management > By Michael F.Murphy,MD; Ron M.Walls,MD; & Robert C.Luten,MD COVER PHOTO KEVIN LINK Disclosure of Author Relationships: Authors have been asked to disclose any relationships they may have with commercial supporters of this supplement or with companies that may have relevance to the content of the supplement. Such disclosure at the end of each article is intended to provide readers with sufficient information to evaluate whether any material in the supplement has been influenced by the writer’s relationship(s) or financial interests with said companies. -
The Future of Mechanical Ventilation: Lessons from the Present and the Past Luciano Gattinoni1*, John J
Gattinoni et al. Critical Care (2017) 21:183 DOI 10.1186/s13054-017-1750-x REVIEW Open Access The future of mechanical ventilation: lessons from the present and the past Luciano Gattinoni1*, John J. Marini2, Francesca Collino1, Giorgia Maiolo1, Francesca Rapetti1, Tommaso Tonetti1, Francesco Vasques1 and Michael Quintel1 Abstract The adverse effects of mechanical ventilation in acute respiratory distress syndrome (ARDS) arise from two main causes: unphysiological increases of transpulmonary pressure and unphysiological increases/decreases of pleural pressure during positive or negative pressure ventilation. The transpulmonary pressure-related side effects primarily account for ventilator-induced lung injury (VILI) while the pleural pressure-related side effects primarily account for hemodynamic alterations. The changes of transpulmonary pressure and pleural pressure resulting from a given applied driving pressure depend on the relative elastances of the lung and chest wall. The term ‘volutrauma’ should refer to excessive strain, while ‘barotrauma’ should refer to excessive stress. Strains exceeding 1.5, corresponding to a stress above ~20 cmH2O in humans, are severely damaging in experimental animals. Apart from high tidal volumes and high transpulmonary pressures, the respiratory rate and inspiratory flow may also play roles in the genesis of VILI. We do not know which fraction of mortality is attributable to VILI with ventilation comparable to that reported in recent clinical practice surveys (tidal volume ~7.5 ml/kg, positive end-expiratory pressure (PEEP) ~8 cmH2O, rate ~20 bpm, associated mortality ~35%). Therefore, a more complete and individually personalized understanding of ARDS lung mechanics and its interaction with the ventilator is needed to improve future care. -
Emergency Medical Services First Responder Certification Level's Impact on Ambulance Scene Times Devin Todd Price Walden University
Walden University ScholarWorks Walden Dissertations and Doctoral Studies Walden Dissertations and Doctoral Studies Collection 2018 Emergency Medical Services First Responder Certification Level's Impact on Ambulance Scene Times Devin Todd Price Walden University Follow this and additional works at: https://scholarworks.waldenu.edu/dissertations Part of the Public Administration Commons, Public Health Education and Promotion Commons, and the Public Policy Commons This Dissertation is brought to you for free and open access by the Walden Dissertations and Doctoral Studies Collection at ScholarWorks. It has been accepted for inclusion in Walden Dissertations and Doctoral Studies by an authorized administrator of ScholarWorks. For more information, please contact [email protected]. Walden University College of Social and Behavioral Sciences This is to certify that the doctoral dissertation by Devin T. Price has been found to be complete and satisfactory in all respects, and that any and all revisions required by the review committee have been made. Review Committee Dr. Robert Levasseur, Committee Chairperson, Public Policy and Administration Faculty Dr. Patricia Ripoll, Committee Member, Public Policy and Administration Faculty Dr. Daniel Jones, University Reviewer, Public Policy and Administration Faculty Chief Academic Officer Eric Riedel, Ph.D. Walden University 2018 Abstract Emergency Medical Services First Responder Certification Level’s Impact on Ambulance Scene Times by Devin T. Price MS, University of San Diego, 2002 BS, University of Phoenix, 1999 Dissertation Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Public Policy and Administration Walden University November 2018 Abstract The foundation of modern-day emergency medical service (EMS) systems began in 1966, based on hospital medical care. -
Mechanical Ventilation
Fundamentals of MMeecchhaanniiccaall VVeennttiillaattiioonn A short course on the theory and application of mechanical ventilators Robert L. Chatburn, BS, RRT-NPS, FAARC Director Respiratory Care Department University Hospitals of Cleveland Associate Professor Department of Pediatrics Case Western Reserve University Cleveland, Ohio Mandu Press Ltd. Cleveland Heights, Ohio Published by: Mandu Press Ltd. PO Box 18284 Cleveland Heights, OH 44118-0284 All rights reserved. This book, or any parts thereof, may not be used or reproduced by any means, electronic or mechanical, including photocopying, recording or by any information storage and retrieval system, without written permission from the publisher, except for the inclusion of brief quotations in a review. First Edition Copyright 2003 by Robert L. Chatburn Library of Congress Control Number: 2003103281 ISBN, printed edition: 0-9729438-2-X ISBN, PDF edition: 0-9729438-3-8 First printing: 2003 Care has been taken to confirm the accuracy of the information presented and to describe generally accepted practices. However, the author and publisher are not responsible for errors or omissions or for any consequences from application of the information in this book and make no warranty, express or implied, with respect to the contents of the publication. Table of Contents 1. INTRODUCTION TO VENTILATION..............................1 Self Assessment Questions.......................................................... 4 Definitions................................................................................ -
Pediatric Trauma and Critical Care Provides Six (6) Hours of Continuing Education Credit
PEDIATRIC TRAUMA AND CRITICAL CARE PROVIDES SIX (6) HOURS OF CONTINUING EDUCATION CREDIT AGENDA 0800-0830 Registration 0830-0930 Transport Pearls for the Neonate Patty Duncan, BSN, RNC 0930-0940 Break 0940-1140 Pediatric Airway and Prehospital Golden Hour Dave Duncan, MD 1145-1215 Lunch 1215-1315 State of the Art EMS Protocols are Created, Not Born That Way Paul S. Rostykus, MD, MPH, FAEMS 1315-1325 Break 1325-1525 Pediatric Trauma Heather Summerby, RN 1525-1530 Evaluation Transport Pearls for the Neonate Patty Duncan There are not many careers where your decisions and interactions can positively impact the life of a human for up to 80 plus years. Dr. Stephen Butler PEARLS OF NEONATAL TRANSPORT FROM A 35 YEAR NICU RN PATTY DUNCAN BSN RNC PATTY DUNCAN BSN RNC • ADVANCED LIFE SUPPORT COORDINATOR • ALS NICU TRANSPORT COORDINATOR • ASSISTANT NURSE MANAGER 61 BED LEVEL 3 NICU • STABLE INSTRUCTOR • NRP INSTUCTOR NICU TRANSPORT TEAM • VIA GROUND, FIXED WING AND ROTOR • SERVE 27 COUNTIES IN NORTHERN CA • 3 OUT OF HOUSE TRANPORT ISOLETTE CONTAIN CONV VENT HFJV NITRIC OXIDE ACTIVE COOLING TECOTHERM BCPAP THE NEONATE-WHY THEY ARE SPECIAL • OF, RELATING TO ,OR AFFECTING THE NEWBORN AND ESPECIALLY THE HUMAN INFANT DURING THE FIRST MONTH AFTER BIRTH • MERRIAM-WEBSTER Large surface area compared to size keep them warm (BSA is 3X greater than adult) Correct ventilation is the key to solving most issue be smart Glucose is their energy source - keep them sweet NEONATES: MASTERS OF DISGUISE KEY = TREAT THE SYMPTOM! • Tachypnea: the most common symptom! • Respiratory Distress Syndrome • Transient tachypnea of the newborn, Hyaline Membrane Disease, pneumothorax, pneumonia • Sepsis-bacterial, virus • Cardiac-ductal dependent vs non ductal dependent • Metabolic Acidosis • Hypoglycemia, • Hypothermia TREAT THE SYMPTOMS! THE DIAGNOSIS WILL FOLLOW (MAYBE) S.T.A.B.L.E. -
Pressure Control Ventilation .Pdf
Crit Care Clin 23 (2007) 183–199 Pressure Control Ventilation Dane Nichols, MD*, Sai Haranath, MBBS Division of Pulmonary & Critical Care Medicine, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Mailcode UHN-67, Portland, OR 97239, USA As mechanical ventilators become increasingly sophisticated, clinicians are faced with a variety of ventilatory modes that use volume, pressure, and time in combination to achieve the overall goal of assisted ventilation. Although much has been written about the advantages and disadvantages of these increasingly complex modalities, currently there is no convincing evi- dence of the superiority of one mode of ventilation over another. It is also important to bear in mind that individual patient characteristics must be considered when adopting a particular mode of ventilatory support. As em- phasized in the 1993 American College of Chest Physicians Consensus Con- ference on Mechanical Ventilation, ‘‘although the quantitative response of a given physiologic variable may be predictable, the qualitative response is highly variable and patient specific’’ [1]. Partly because of the inherent difficulties in working with pressure venti- lation, the Acute Respiratory Distress Syndrome (ARDS) Network chose to use a volume mode of support for their landmark low tidal volumetrial [2]. The preference for volume ventilation at ARDS Network centers was later demonstrated in a retrospective study of clinicians’ early approach to me- chanical ventilation in acute lung injury/ARDS. Pressure control was used in only 10% of the patient population before study entry. There was a mod- est tendency to use pressure control ventilation (PCV) in patients with more severe oxygenation defects (PaO2/FiO2, or P/F !200) and a greater toler- ance for higher airway pressures when using this mode.