2025 Program & Abstracts

Embargo Policy

Studies scheduled for presentation at the American Surgical Association's 145th Annual Meeting, April 24-26, 2025, in San Diego, California

The embargo on studies and their associated abstracts (including those posted online prior to the conference) scheduled for presentation at the American Surgical Association's 145th Annual Meeting, April 24-26, 2025, in San Diego, California, is the date and time of each individual scientific presentation (not the beginning of the overall session in which it has been scheduled). News media activities are restricted until the embargo lifts. Any news media activity about a study and its associated abstract must include the following: "The complete manuscript of this study and its presentation at the American Surgical Association's 145th Annual Meeting, April 2025, in San Diego, California, is anticipated to be published in the Annals of Surgery pending editorial review."

THURSDAY, APRIL 24

8:15 AM

Pacific Ballroom

OPENING SESSION
President's Opening Remarks
Secretary's Welcome & Introduction of New Fellows Elected in 2024
President's Introduction of Honorary Fellows
President's Introduction of ESA Fellows
Presentation of the Medallion for Scientific Achievement
Presentation of the Medallion for the Advancement of Surgical Care
Presentation of the Flance-Karl Award
Past President Eulogy
Report of the Committee on Arrangements

9:10 AM - 10:50 AM

Pacific Ballroom

SCIENTIFIC SESSION I
Moderator: Ronald J. Weigel, MD, PhD

9:10 AM - 9:35 AM

1. Results of a Phase III Randomized Controlled Trial of Pyloroplasty Versus No Pyloroplasty in Patients Undergoing Minimally Invasive Esophagectomy or Robot Assisted Minimally Invasive Esophagectomy
James Luketich, *Inderpal Sarkaria, *Ryan Levy, *Evan Alicuben, *William Gooding, *Omar Awais, *Neil Christie, *Renee Levesque, *Julie Ward, *John Ryan, *Matthew Schuchert, *Arjun Pennathur, University of Pittsburgh/UPMC MIE RAMIE Pyloroplasty Trial Study Group
Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, PA

9:35 AM - 10:00 AM

2. Impact of a Patient-Centered Program for Low Anterior Resection Syndrome: A Multicenter, Single-Blinded, Randomized Controlled Trial
*Richard Garfinkle¹, *Marie Demian¹, *Sarah Sabboobeh¹, *Sahir Bhatnagar¹, *Julie Savard¹, *Sebastien Drolet⁶, *Sender Liberman³, *Carl Brown⁴, *Jason Park⁵, *Joengyoon Moon¹, *Carmen Loiselle⁷, Steven D. Wexner², Liliana Bordeianou⁸, *Gabriela Ghitulescu¹, *Julio Faria¹, *Nancy Morin¹, *Carol-Ann Vasilevsky¹, *Marylise Boutros²
¹Colon and Rectal Surgery, Jewish General Hospital, Montreal, QC, Canada; ²Colorectal Surgery, Cleveland Clinic Florida, Weston, FL; ³Surgery, McGill University Health Center, Montreal, QC, Canada; ⁴Surgery, St. Paul's Hospital, Vancouver, BC, Canada; ⁵Surgery, Vancouver General Hospital, Vancouver, BC, Canada; ⁶Surgery, CHU de Quebec, Quebec City, QC, Canada; ⁷Oncology and Ingram School of Nursing, McGill University, Montreal, QC, Canada; ⁸Colorectal Surgery, Massachusetts General Hospital, Boston, MA

10:00 AM - 10:25 AM

3. Randomized Controlled Trial of New Oral Anticoagulants Versus Warfarin for Post Cardiac Surgery Atrial Fibrillation: The NEWAF Trial
*Adham Makarem, *Philicia Moonsamy, *Yunong Zhao, *Arminder Jassar, *Serguei Melnitchouk, *David D'Alessandro, *Oluwaseun Akeju, Thoralf Sundt, *Asishana Osho
Department of Surgery - Division of Cardiac Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA

10:25 AM - 10:50 AM

4. Practice Readiness of Chief Residents in a National Sample During the First Year of EPA Assessments
*Brenessa Lindeman¹, *Chandler Scott-Smith², *Andrew Jones², George A. Sarosi³, Rebecca Minter⁴, *Sarah Jung⁴, *Jonathan Jesneck⁵, *Ruchi Thanawala⁶, John Mellinger², *Carol L. Barry², Jo Buyske², Karen Brasel²
¹Surgery, University of Alabama at Birmingham, Birmingham, AL; ²American Board of Surgery, Philadelphia, PA; ³Surgery, University of Florida, Gainesville, FL; ⁴Surgery, University of Wisconsin, Madison, WI; ⁵Firefly Lab, Portland, OR; ⁶Surgery, Oregon Health Science University, Portland, OR

10:50 AM - 12:00 PM

Pacific Ballroom

PRESIDENTIAL ADDRESS
Preserving the Academic Mission

10:50 AM - 11:00 AM

Introduction of the President
Edward E. Cornwell, III, MD

11:00 AM - 12:00 PM

Address by the President
Ronald J. Weigel, MD, PhD

1:30 PM - 5:15 PM

Pacific Ballroom

SCIENTIFIC SESSION II
Moderator: Jeffrey A. Drebin, MD, PhD

1:30 PM - 1:55 PM

5. The First National Effort to Standardize the Performance of Cancer Surgery by the American College of Surgeons Commission on Cancer and Cancer Surgery Standards Program: Early Results After Implementation of Operative Standards
Matthew H. Katz ¹, *Amanda Francescatti⁴, *Timothy W. Mullett³, *James Harris², *Aaron D. Bleznak⁵, Ronald J. Weigel⁴, *Erin K. Reuter⁴, *Bell M. Pastore⁴, *Elizabeth C. Funk⁴, *Kelley Chan⁴, *Peter J. Carpenter⁴, *William R. Burns⁶, *Mediget Teshome⁷, *Timothy J. Vreeland⁸, Kelly Hunt¹, *Tina J. Hieken⁹
¹The University of Texas MD Anderson Cancer Center, Houston, TX; ²Western Surgical Group, Reno, NV; ³Markey Cancer Center, Lexington, KY; ⁴American College of Surgeons, Chicago, IL; ⁵Riverside Health System, Williamsburg, VA; ⁶Johns Hopkins Medicine, Baltimore, MD; ⁷UCLA Health, Santa Monica, CA; ⁸Brooke Army Medical Center, San Antonio, TX; ⁹Mayo Clinic, Rochester, MN

1:55 PM - 2:20 PM

6. Timing Is Everything: Initiation of VTE Prophylaxis Within 24 Hours Following Major Trauma Is Effective and Safe
*Andrew J. Kerwin MD¹, *Saskya Byerly¹, *Dina Filiberto¹, *Emily Lenart¹, Martin Croce¹, Ernest Moore², Margaret Knudson³
¹Surgery, University of Tennessee Health Science Center, Memphis, TN; ²Surgery, University of Colorado School of Medicine, Denver, CO; ³Surgery, University of California, San Francisco, San Francisco, CA

2:20 PM - 2:45 PM

7. Mitochondrial Transplantation Reduces Injury and Improves Liver Function in a Porcine Model of Hepatic Ischemia/Reperfusion
*Christian Hobeika¹, *Avinash N. Mukkala², *Kun Wang³, *Nicola Pollmann³, *Sujani Ganesh³, *Francisco Calderon Novoa³, *Catherine Parmentier³, *Simon Qu³, *Ramadan Karrout², *Cindy Lin³, *Emma Mizdrak³, *Micka�l Lesurtel¹, *Nazia Selzner³, *Trevor Reichman³, *Oyedele Adeyi⁴, *Eno Hysi², Ori Rotstein², *Markus Selzner³
¹HPB Surgery and Liver transplantation, Beaujon Hospital, AP-HP, Universit� Paris-Cit�, Clichy, France; ²Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada; ³Ajmera Transplant Centre, Toronto General Hospital, University Health Network, Toronto, ON, Canada; ⁴Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN

2:45 PM - 3:10 PM

8. Improving Pediatric Surgery Quality by Widely Adopting an Evidence-Based Protocol: An Effort of the Pediatric Surgery Quality Collaborative
*Jeannette M. Joly¹, *Monica E. Lopez³, *Erich J. Grethel⁷, *Terry Fisher¹, *Krysta M. Sutyak¹, Martin L. Blakely¹, *Seokhun Kim², *Charles Green², *Jeffrey M. Burford⁸, *Nicole Chandler⁶, *Kathryn Danko⁷, *Raquel Gonzalez⁶, *Laura Jorg⁴, *Andrew Nuibe⁹, *Daniel K. Robie⁵, *Amanda Skaggs⁴, *Regan Williams¹⁰, Kevin P. Lally¹
¹Pediatric Surgery, University of Texas Health Science Center at Houston, Houston, TX; ²Institute for Clinical Research and Learning Health Care, McGovern Medical School, Houston, TX; ³Pediatric Surgery, Vanderbilt University School of Medicine, Nashville, TN; ⁴Perioperative Services, Dayton Children's Hospital, Dayton, OH; ⁵Surgery, Dayton Children's Hospital, Dayton, OH; ⁶Pediatric Surgery, Johns Hopkins All Children's Hospital, St. Petersburg, FL; ⁷Pediatric Surgery, Dell Children's Medical Center, Austin, TX; ⁸Pediatric Surgery, Arkansas Children's Hospital, Little Rock, AR; ⁹Pediatric Infectious Disease, Inova Health System, Fairfax, VA; ¹⁰Pediatric Surgery, The University of Tennessee Health Science Center, Memphis, TN

3:10 PM - 3:35 PM

9. The Impact of State Legislation on the Incidence of Births with Congenital Anomalies in Texas
*Neha Malik¹, *Connor Fritz¹, *Clark Andersen¹, *Krysta M. Sutyak², *Eric Bergh², Nancy D. Perrier¹, KuoJen Tsao², Kevin P. Lally², *Mary Austin¹
¹MD Anderson Cancer Center, Houston, TX; ²University of Texas McGovern School of Medicine, Houston, TX

3:35 PM - 4:00 PM

10. Anatomic Location Predicts Response Rates: Real World Outcomes with Over 1,100 Cycles of Talimogene Laherparepvec (TVEC)
*Gray B. Peery¹, *Kristen E. Dougherty¹, *Chris B. Agala¹, *Veronica P. Pham¹, *Morgan E. Gwynn², *Michael O. Meyers¹, *Karyn B. Stitzenberg¹, *Jonathan D. Sorah³, *Patricia K. Long¹, *Frances A. Collichio³, David W. Ollila¹
¹Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC; ²Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC; ³Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC

4:00 PM - 4:25 PM

11. Association of Traditional and New Wait Time Benchmarks for Curative-Intent Colorectal Cancer Surgery and Survival: A Population-Based Cohort Study
*Adom Bondzi-Simpson¹, *Rinku Sutradhar³, Frances C. Wright¹, *Tiago Ribeiro¹, *Sheron Perera², *Wing Chan³, *Andrea Covelli¹, *Aisha Lofters⁴, *Rebecca Snyder⁵, *Callisia N. Clarke⁶, Natalie G. Coburn¹, *Julie Hallet¹
¹Department of Surgery, University of Toronto, Toronto, ON, Canada; ²Department of Medicine, Division of Medical Oncology, University of Toronto, Toronto, ON, Canada; ³ICES, Toronto, ON, Canada; ⁴Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada; ⁵Departments of Surgical Oncology and Health Services Research, MD Anderson, Houston, TX; ⁶Department of Surgery, Medical College of Wisconsin, Milwaukee, WI

4:25 PM - 4:50 PM

12. Imaging Based Surgical Site Infection Detection Using Artificial Intelligence
*Hala Muaddi¹, *Frank Lee¹, *Ashok Choudhary², *Stephanie Anderson², *Elizabeth Habermann², *David Etzioni¹, Sarah Mclaughlin¹, *Michael Kendrick¹, *Hojjat Salehinejad², *Cornelius Thiels¹
¹Surgery, Mayo Clinic, Rochester, MN; ²Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN

4:50 PM - 5:15 PM

13. Genome-Wide Association Study (GWAS) Using the NIH Precision Medicine Initiative All of Us to Predict 12-Month Weight Loss Following Vertical Sleeve Gastrectomy
*Yu Hou¹, *Daniel Leslie¹, *Jinhua Wang², *Rui Zhang¹, Sayeed Ikramuddin¹
¹Surgery, University of Minnesota, Minneapolis, MN; ²Institute for Health Informatics, University of Minnesota, Minneapolis, MN

FRIDAY, APRIL 25

6:30 AM - 8:00 AM

Pacific Ballroom

INCLUSIVE EXCELLENCE FORUM

Inclusive Excellence in Politically Divided Times
Continental Breakfast provided

Co-Moderators:

Jeffrey B. Matthews, MD
Dana A. Telem, MD, MPH

Introduction
Jeffrey B. Matthews, MD
University of Chicago, Chicago, IL

Legislative Advocacy by Surgeons: How We Can Be Most Effective?
Selwyn O. Rogers, Jr, MD, MPH
University of Chicago, Chicago, IL

Far-Reaching Implications of the Changing Legal Climate for Reproductive Health
*Anna R. Kirkland, PhD, JD
University of Michigan, Ann Arbor, MI

Federal and State Regulation of Inclusive Excellence: What Is the Path Forward?
Gilbert R. Upchurch, Jr., MD
Gainesville, FL

8:00 AM - 10:30 AM

Pacific Ballroom

SCIENTIFIC SESSION III
Moderator: Ronald J. Weigel, MD, PhD

8:00 AM - 8:25 AM

14. The Intersection of Cancer and Disability: Improving Cancer Care for Patients with Disabilities
*Jiali Cai, *Oliver Eng, *Maheswari Senthil, Ninh Nguyen, *Thuy B. Tran
Surgery, University of California Irvine, Orange, CA

8:25 AM - 8:50 AM

15. Living in a Disadvantaged NYC Neighborhood Is Associated with Poorly Differentiated Breast Cancer and Shorter Overall Survival
*Claire Miller, *Tiana Le, *Thomas Amburn, *Srinivasa Veeravalli, *Audree Tadros, *Stephanie Downs-Canner, *George Plitas, *Andrea Barrio, Monica Morrow, *Neha Goel
Memorial Sloan Kettering Cancer Center, New York, NY

8:50 AM - 9:15 AM

16. Turning Tides: Evolving Comorbidity Profiles, Demographic Shift, and the Unexpected Rise of Major Lower Extremity Amputations
*Panos Kougias¹, *Sherene Sharath¹, *Claire Ferguson¹, *Sundar Natarajan², *Steven Medvedovsky¹, *Danylo Orlov¹, David H. Berger¹
¹Surgery, SUNY Downstate Health Sciences University, Brooklyn, NY; ²Medicine, NYU Grossman School of Medicine, New York City, NY

9:15 AM - 9:40 AM

17. Development, Validation, and Prospective Testing of a Novel Open Architecture AI Model for Automated Surgical Coding
*Mohamad El Moheb¹, *Kristin Putman¹, *Olivia Sears¹, *Jianjie Ma¹, *Yangfeng Ji², Melina Kibbe¹, Craig Kent¹, Allan Tsung¹
¹Department of Surgery, University of Virginia, Charlottesville, VA; ²Department of Computer Science, University of Virginia, Charlottesville, VA

9:40 AM - 10:05 AM

18. Over One-Third of Surgical Patients Report Inadequate Shared Decision-Making: Opportunities for Improvement from the ACS NSQIP PROMs Demonstration Project
*Jason B. Liu¹, *Anoosha Moturu², Larissa K. Temple³, Zara Cooper¹, Bruce L. Hall⁴, Clifford Y. Ko², Andrea L. Pusic¹
¹Surgery, Brigham and Women's Hospital, Boston, MA; ²American College of Surgeons, Chicago, IL; ³Surgery, University of Rochester Medical Center, Rochester, NY; ⁴University of California Davis Health, Sacramento, CA

10:05 AM - 10:30 AM

19. Assessment of the NIH Salary Cap Gap Reveals the Increasing Financial Burden of Training and Hiring Surgeon-Scientists
*Juliet Emamaullee¹, *Sarah Bangerth¹, *Krista Haines², *Shannon Jordan¹, David Linehan³, Arden Morris⁴, Anton Sidawy⁵, Timothy Donahue⁶, Ankush Gosain⁸, Todd Rosengart⁷
¹Surgery, University of Southern California, Los Angeles, CA; ²Surgery, Duke University, Durham, NC; ³Surgery, University of Rochester, Rochester, NY; ⁴Surgery, Stanford University, Palo Alto, CA; ⁵Surgery, George Washington University, Washington, ; ⁶Surgery, UCLA, Los Angeles, CA; ⁷Surgery, Baylor University, Houston, TX; ⁸University of Virginia, Charlottesville, VA

8:45 AM - 11:00 AM

OPTIONAL TOUR (Recommended for Spouses/Partners/Non-Physician Guests)
USS Midway Museum
Price: $55 per person; add this event during the Annual Meeting registration process
Participants will take a short, seven-minute walk to the USS Midway Museum to experience a private tour led by one of the USS Midway Museum's docents and see the ship like never before. Full details here.

10:30 AM - 12:00 PM

Pacific Ballroom

FORUM DISCUSSION
Ensuring Quality Surgical Care in the 21st Century
Moderator:Ronald J. Weigel, MD, PhD

Improving Surgical Care Through Accreditation Programs
Patricia L. Turner, MD, MBA
American College of Surgeons, Chicago, IL

The Role of The Joint Commission in Quality Surgical Care
*James I. Merlino, MD
The Joint Commission, Oakbrook Terrace, IL

Incentivizing Quality Surgical Care
Dora L. Hughes, MD, MPH (Invited)
Centers for Medicare & Medicaid Services, Baltimore, MD

Transforming Registries with AI/ML and Digital Capabilities
Genevieve B. Melton-Meaux, MD, PhD
University of Minnesota, Minneapolis, MN

1:30 PM - 4:00 PM

Pacific Ballroom

SCIENTIFIC SESSION IV
Moderator: Edward E. Cornwell, MD

1:30 PM - 1:55 PM

20. Over Thirty Years of Living Liver Donation in North America: Mortality Associated with Donation
*Elizabeth A. King⁸, Roberto Hernandez Alejandro³, *Juliet Emamaullee⁶, *David Al-Adra⁴, *Matthew Byrne³, *Nazia Selzner⁷, *Blaire Anderson⁵, Elizabeth Pomfret², Kim M. Olthoff¹
¹Surgery, University of Pennsylvania, Philadelphia, PA; ²Surgery, University of Colorado, Denver, CO; ³Surgery, University of Rochester, Rochester, NY; ⁴Surgery, University of Wisconsin, Madison, WI; ⁵Surgery, University of Alberta, Edmonton, AB, Canada; ⁶Surgery, University of Southern California, Los Angeles, CA; ⁷Ajmera Transplant Institute, University of Toronto, Toronto, ON, Canada; ⁸Surgery, Johns Hopkins University, Baltimore, MD

1:55 PM - 2:20 PM

21. Intent vs Execution: Failure to Achieve Balanced Resuscitation in Bleeding Trauma Patients
*Jan-Michael Van Gent¹, *Thomas W. Clements¹, Jeremy Cannon², Martin Schreiber³, Ernest Moore⁴, Nicholas Namias⁵, Jason L. Sperry⁶, Bryan A. Cotton¹
¹Surgery, UT Houston, Schertz, TX; ²University of Pennsylvania, Philadelphia, PA; ³Oregon Health & Science University, Portland, OR; ⁴University of Colorado Health Sciences Center, Denver, CO; ⁵University of Miami/Jackson Memorial Hospital, Miami, FL; ⁶University of Pittsburgh, Pittsburgh, PA

2:20 PM - 2:45 PM

22. Mitochondrial Injury Assessed During Normothermic Machine Perfusion Predicts Outcomes and Costs After Liver Transplantation - A Prospective Validation and Cost-Effectiveness Analysis
*Chase J. Wehrle¹, *Elizabeth Dewey², *Chunbao Jiao³, *Keyue Sun³, *Rebecca Panconesi³, *Sangeeta Satish¹, *Omer F. Karakaya³, *Khaled Ali¹, *Minghy Zhang¹, *Mazhar Khalil¹, *Alejandro Pita¹, *Jaekeun Kim¹, *Federico Aucejo¹, *David C. Kwon¹, *Robert Fairchild¹, *Masato Fujiki¹, *Antonio D. Pinna⁴, *David Meierhofer⁵, *Belinda Udeh², *Koji Hashimoto¹, Charles Miller¹, *Andrea Schlegel¹
¹Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, OH; ²Center for Population Health Research, Cleveland Clinic, Cleveland, OH; ³Inflammation & Immunity, Cleveland Clinic, Cleveland, OH; ⁴Transplantation, Cleveland Clinic Florida, Weston, FL; ⁵Genomics, Max Planck Institute, Berlin, Germany

2:45 PM - 3:10 PM

23. Bypass Versus Endovascular Therapy for Elective Infrapopliteal Interventions in Chronic Limb-Threatening Ischemia: Propensity Score-Matched Analyses of Vascular Quality Initiative Registry
*Sina Zarrintan¹, *Mohammed Hamouda¹, Joseph Mills², Michael S. Conte³, Alik Farber⁴, Mahmoud Malas¹
¹Department of Surgery, University of California San Diego, San Diego, CA; ²Michael E. Debakey Department of Surgery, Baylor College of Medicine, Houston, TX; ³Department of Surgery, University of California San Francisco, San Francisco, CA; ⁴Department of Surgery, Boston University Chobanian & Avedisian School of Medicine, Boston, MA

3:10 PM - 3:35 PM

24. Development of the Perihilar Cholangiocarcinoma Risk Estimation of Tumor REcurrence After Transplant (PRETREAT) Score - Insights from 30 Years of Experience
*Zhihao Li, *Timucin Taner, *Sumera Ilyas, *John Eaton, *Ty Diwan, *Gregory Gores, Julie Heimbach
Mayo Clinic, Rochester, MN

3:35 PM - 4:00 PM

25. Moderate and High-Grade Blunt Liver and Spleen Injuries Warrant Repeat Imaging to Identify Treatable Complications: Results of the Radiographic Evaluation of Delayed Solid Organ Complications (REDSOC) Multicenter Trial
*Lindsey L. Perea¹, *Kelsey L. Fletcher², *Madison E. Morgan¹, *Allison G. McNickle³, *Douglas Fraser³, *Martin Rosenthal⁴, *Ethan Wang⁴, *Anna Goldenberg⁵, *Emily Hancin⁵, *Alison A. Smith⁶, *Jack A. Leoni⁶, *Jonathan Meizoso⁷, *Christopher F. O'Neil⁷, *Matthew Noorbakhsh⁸, *Khalid Almahmoud⁹, *David Lapham¹⁰, *Erica Sais¹⁰, *Daniel Cullinane¹¹, *Carolyne Falank¹¹, *Adrian A. Maung¹², *Bishwajit Bhattacharya¹², *Paul Bjordahl¹³, *Jenny Guido¹³, *Alexandra Dixon¹⁴, *Amanda Carlson¹⁴, *Pascal Udekwu¹⁵, *Chloe Shell¹⁵, *Jaroslaw Bilaniuk¹⁶, *Zoltan Nemeth¹⁶, *Christopher A. Butts¹⁷, *Julia Zorn¹⁷, *Kellie Bresz¹⁸, *Michael Horst¹⁸, Andrew Bernard¹⁹, *Joshua P. Hazelton²⁰
¹Department of Surgery, Penn Medicine Lancaster General Health, Lancaster, PA; ²Department of Surgery, Penn State Health, Hershey, PA; ³Department of Surgery, University of Nevada, Las Vegas, NV; ⁴Department of Surgery, Loma Linda University Medical Center, Loma Linda, CA; ⁵Department of Surgery, Cooper University Hospital, Camden, NJ; ⁶Department of Surgery, Louisiana State University Health Sciences Center, New Orleans, LA; ⁷DeWitt Daughtry Family Department of Surgery, University of Miami; Ryder Trauma Center, Jackson Memorial Hospital, Miami, FL; ⁸Department of Surgery, University of Virginia Health University Hospital, Charlottesville, VA; ⁹Department of Surgery, Allegheny General Hospital, Pittsburgh, PA; ¹⁰Department of Surgery, Jefferson University, Philadelphia, PA; ¹¹Department of Surgery, Maine Medical Center, Portland, ME; ¹²Department of Surgery, Yale New Haven Hospital, New Haven, CT; ¹³Department of Surgery, Sanford USD Medical Center Sioux Falls, Sioux Falls, SD; ¹⁴Department of Surgery, Legacy Emanuel Medical Center, Portland, OR; ¹⁵Department of Surgery, Wake Med Health and Hospitals, Raleigh, NC; ¹⁶Department of Surgery, Atlantic Health Morristown Medical Center, Morristown, NJ; ¹⁷Department of Surgery, Reading Hospital, Reading, PA; ¹⁸Data and Analytics, Penn Medicine, Philadelphia, PA; ¹⁹Department of Surgery, University of Kentucky Healthcare, Louisville, KY; ²⁰Department of Surgery, Wellspan York Hospital, York, PA

4:00 PM - 5:00 PM

Pacific Ballroom

EXECUTIVE SESSION
ASA Fellows Only

6:30 PM

ANNUAL RECEPTION Bayview Ballroom and Terrace
Black tie/evening dress preferred, business formal acceptable

7:30 PM

Pacific Ballroom

ANNUAL BANQUET
Black tie/evening dress preferred, business formal acceptable

SATURDAY, APRIL 26

8:00 AM - 11:00 AM

Pacific Ballroom

SCIENTIFIC SESSION V
Moderator: New President-Elect

8:00 AM - 8:25 AM

26. National Practice Variation and Disparities in Pediatric Umbilical Hernia Repair Under Five
*Sean H. Nguyen, *Eileen K. Peterson, Sayeed Ikramuddin, *James Harmon, *Randi L. Lassiter
Surgery, University of Minnesota, Minneapolis, MN

8:25 AM - 8:50 AM

27. Precision Medicine in Surgery: Regeneration Strategies Come of Age for Treatment of Immunologic and Surgical Diseases.
*Mingyang Ma¹, *Preeti Chhabra¹, *Gordon Laurie², Kenneth L. Brayman¹
¹Surgery, University of Virginia, Charlottesville, VA; ²Cell Biology, University of Virginia, Charlottesville, VA

8:50 AM - 9:15 AM

28. How Volume of Neurosurgical Interventions Impacts Patient Outcomes: An Analysis of 30,000 Craniectomies and Craniotomies
*Louis Magnotti, *Muhammad Haris Khurshid, *Adam Nelson, *Omar Hejazi, *Tanya Anand, *Francisco Castillo Diaz, *Lourdes Castanon, *Mohammad Al Ma'ani, *Michael Ditillo, Bellal Joseph
University of Arizona, Tucson, AZ

9:15 AM - 9:40 AM

29. Improvement of the Natural Progression of Extremity Lymphedema Treated with Lymphatic Microsurgery
*Marco Pappalardo¹, *Chia-Yu Lin², *Chieh Lin³, Kevin Chung⁴, *Ming-Huei Cheng²
¹Division of Plastic and Reconstructive Surgery, Department of Medical and Surgical Sciences, University of Modena and Reggio, Emilia, Italy; ²A+ Surgery Clinic, Taipei, Taiwan; ³Department of Nuclear Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan; ⁴Division of Plastic Surgery and Hand Surgery, Michigan Medicine, Ann Arbor, MI

9:40 AM - 10:05 AM

30. Age-Specific Increase in Vasopressin-Induced Coronary Microvascular Contractile Response in Patients Undergoing Cardiac Surgery
*Debolina Banerjee, *Sharif Sabe, William Cioffi, Thomas Miner, *Neel Sodha, *Afshin Ehsan, *Janelle Li, *M Ruhul Abid, *Jun Feng, Frank Sellke
Department of Surgery, Brown University, Providence, RI

10:05 AM - 10:30 AM

31. Mutational Status of Driver Genes in Patients with Resected Pancreatic Ductal Adenocarcinoma Is Associated with Pathological Characteristics and Overall Survival
*Brady A. Campbell¹, *Marco Dal Molin¹, *Dario Solinas¹, *Julia Purchla¹, *Thomas McPhaul¹, *Swathikan Chidambaram¹, John Cameron¹, *Amanda L. Blackford², *Ralph H. Hruban³, *Christopher R. Shubert¹, *Kelly J. Lafaro¹, *Richard A. Burkhart¹, *William R. Burns¹, *Jin He¹
¹Surgery, Johns Hopkins University School of Medicine, Baltimore, MD; ²Oncology, Johns Hopkins University School of Medicine, Baltimore, MD; ³Pathology, Johns Hopkins University School of Medicine, Baltimore, MD

10:30 AM - 10:55 AM

32. A 10-Year Real World Assessment of Longitudinal Outcomes Following Bailout Procedures for Severe Cholecystitis
*Zhi Ven Fong¹, *Pei-Wen Lim¹, *Po Hong Tan¹, *Yu-Hui Chang¹, *Mehrdad Motamed¹, *Irving Jorge¹, *Megan H. Nelson¹, *Peter F. Johnston¹, *Chee-Chee H. Stucky¹, *Nabil Wasif¹, *James A. Madura¹, Keith D. Lillemoe²
¹Surgery, Mayo Clinic Arizona, Phoenix, AZ; ²Surgery, Massachusetts General Hospital, Boston, MA

11:00 AM

ADJOURNMENT

* By Invitation

The American Surgical Association wishes to recognize and thank the following company for their ongoing educational grant support:

Wolters Kluwer is the Publisher of the Annals of Surgery, the official publication for the papers presented at the Scientific Sessions of the Annual Meeting of the American Surgical Association.