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American Surgical Association
2021 Program and Abstracts

Embargo Policy
Studies scheduled for presentation at the American Surgical Association's Virtual 141st Annual Meeting, April 15-16, 2021.

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 Virtual 141st Annual Meeting, April 15-16, 2021, 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 Virtual 141st Annual Meeting, April 2021, is anticipated to be published in the Annals of Surgery pending editorial review."

All presentation times listed below are in Eastern Time.

11:00 AM - 11:55 AM
President's Opening Remarks
Secretary's Welcome & Introduction of New Fellows Elected in 2020
Introduction of Honorary Fellows
Presentation of the Medallion for Scientific Achievement
Presentation of the Medallion for the Advancement of Surgical Care
Past President Eulogies
11:55 AM - 12:00 PM
12:00 PM - 1:50 PM
SCIENTIFIC SESSION I (15 minutes / presentation inclusive of q&a)
Co-Moderators: Robin S. McLeod, MD and Mary T. Hawn, MD
12:00 PM - 12:05 PM
Housekeeping Notes
12:05 PM - 12:20 PM
1. IMPPACT (Intravenous Monotherapy For Postoperative Perforated Appendicitis In Children Trial) Randomized Clinical Trial Of Monotherapy Versus Multi-drug Antibiotic Therapy
*Justin Lee1, *Erin M Garvey1, *Nikkida Bundrant1, *Obiyo Osuchukwu2, *Angela Hargis-Villanueva1, *Charlene Dekonenko2, *Paul Kang3, *Wendy Jo Svetanoff2, Shawn St. Peter2, *Benjamin Padilla1, Daniel Ostlie1
1Phoenix Children's Hospital, Phoenix, AZ;2Children's Mercy Hospital, Kansas City, MO;3University of Arizona College of Public Health, Phoenix, AZ
12:20 PM - 12:35 PM
2. Pre-transplant T-cell Clonality: A Biomarker For Prediction of Sepsis In Liver Transplant Recipients
*Steven L Jones, *Linda W Moore, *Xian C Li, *Edward A Graviss, *Duc T Nguyen, *Ashish Saharia, *Constance Mobley, *Mark Hobeika, *Robert McMillan, *Joy Nolte Fong, *Laurie Minze, Ahmed O Gaber, R Mark Ghobrial
Houston Methodist Hospital, Houston, TX
12:35 PM - 12:50 PM
3. Early Prehospital Tranexamic Acid Following Injury Is Associated with a 30-Day Survival Benefit: A Secondary Analysis of a Randomized Clinical Trial
*Shimena Li1, *Francis Guyette1, *Joshua Brown1, *Mazen Zenati1, *Brian Eastridge2, *Raminder Nirula3, *Gary Vercruysse4, *Terence O'Keeffe4, *Bellal Joseph4, *Matthew Neal1, Brian Zuckerbraun1, Jason Sperry1
1University of Pittsburgh, Pittsburgh, PA;2University of Texas Health San Antonio, San Antonio, TX;3University of Utah, Salt Lake City, UT;4University of Arizona, Tucson, AZ
12:50 PM - 1:05 PM
4. Liver Transplantation in the Time of a Pandemic: A Widening of the Racial and Socioeconomic Health Care Gap during COVID-19
*Malcolm MacConmara1, *Benjamin Wang1, *Madhukar S Patel2, *Christine S Hwang1, *Lucia DeGregorio1, *Jigesh Shah1, *Steven I Hanish1, Dev Desai1, *Raymond Lynch3, *Bekir Tanriover4, Herbert Zeh, III1, *Parsia A Vagefi1
1University of Texas Southwestern Medical Center, Dallas, TX;2University of Toronto, Toronto, ON, Canada3Emory University, Atlanta, GA;4University of Arizona, Tuscon, AZ
1:05 PM - 1:20 PM
5. Courtesy Authorship Practices Among First And Senior Authors: Evaluation Of Motivations, Gender Bias, And Inequities
*Mary Condron1, Melina Kibbe2, Kenneth Azarow3, Matthew Martin4
1St Charles Medical Center, Bend, OR;2University of North Carolina, Chapel Hill, NC;3Oregon Health & Science University, Portland, OR;4Scripps Mercy Hospital, San Diego, CA
1:20 PM - 1:35 PM
6. A Randomized Controlled Trial Evaluating Electronic Symptom Monitoring After Ambulatory Cancer Surgery (pcori Contract #ihs-1602-34355)
Larissa Temple1, *Andrea Pusic2, *Jeanne Carter3, *Cara Stabile3, *Andrew Vickers3, *Kate Niehaus3, *Peter Stetson3, *Brett Simon3
1University of Rochester, Rochester, NY;2Brigham and Women's Hospital, Boston, MA;3Memorial Sloan Kettering Cancer Center, New York, NY
1:35 PM - 1:50 PM
7. The Hospital Volume - Outcome Relationship in Esophageal Cancer Surgery after the first wave of Centralization in the Dutch Upper Gastrointestinal Cancer Audit
*Daan M Voeten1, *Suzanne S. Gisbertz1, Jelle P. Ruurda2, Lorenzo Ferri3, *Richard van Hillegersberg2, *Mark Ivo van Berge Henegouwen1
1Amsterdam UMC, University of Amsterdam, Cancer Center Amsterdam, Amsterdam, the Netherlands; 2Utrecht University Medical Center, Utrecht, the Netherlands; 3Montreal General Hospital, Montreal, QC, Canada
1:50 PM - 1:55 PM
1:55 PM - 5:15 PM
SCIENTIFIC SESSION II (15 minutes / presentation inclusive of q&a)
Co-Moderators: Selwyn M. Vickers, MD and Jeffrey A. Drebin, MD
1:55 PM - 2:00 PM
Housekeeping Notes
2:00 PM - 2:15 PM
8. Failure To Rescue After Pancreatoduodenectomy: A Transatlantic Analysis
*Elizabeth M. Gleeson1, Henry A. Pitt2, *Tara M. Mackay3, *Ulrich F. Wellner4, *Caroline Williamsson5, *Oliver R. Busch3, *Bas Groot Koerkamp6, *Tobias Keck4, *Hjalmar C. van Santvoort7, *Bobby Tingstedt5, *Marc G. Besselink3
1Icahn School of Medicine at Mount Sinai, New York, NY; 2Rutgers Cancer Institute of New Jersey, New Brunswick, NJ; 3Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; 4University of Lubeck, Lubeck, Germany; 5Lund University, Lund, Sweden; 6Erasmus MC Cancer Institute, Rotterdam, the Netherlands; 7University Medical Center Utrecht, Utrecht, Netherlands
2:15 PM - 2:30 PM
9. Outcomes Of The First Virtual General Surgery Certifying Exam Of The American Board Of Surgery
Herbert Chen, David Spain, *John Stewart, Jennifer Tseng, Daniel Dent, Rabih Chaer, *Beatriz Ibanez Moreno, *Carol Barry, *Andrew Jones, Jo Buyske
American Board of Surgery, Philadelphia, PA
2:30 PM - 2:45 PM
10. Anti-C5 Antibody Tesidolumab Reduces Early Antibody Mediated Rejection And Prolongs Survival In Renal Xenotransplantation
*Andrew B Adams1, *Brendan P Lovasik1, *David A Faber1, *Cynthia Breeden1, *Jose L Estrada2, *Luz M Reyes2, *Rodrigo M Vianna2, *Matthew F Tector3, Alfred J Tector2
1Emory School of Medicine, Atlanta, GA;2University of Miami School of Medicine, Miami, FL;3Makana Therapeutics, Minneapolis, MN
2:45 PM - 3:00 PM
11. Molecular Genomic Assessment Of Neuroendocrine Tumor Disease Using A Blood-based mRNA Signature Predicts Tumor Recurrence With 93% Accuracy
*Irvin M Modlin1, *Mark Kidd2, *Andrea Frilling3, *Massimo Falconi4, *Pier Luigi Filosso5, *Anna Malczewska6, *Ignat A Drozdov2, *Alexandra Kitz2, Edward L Kaplan7
1Yale University, New Haven, CT;2Wren Laboratories, Branford, CT;3Imperial College London, London, United Kingdom;4Ospedale San Raffaele IRCCS, Milan, Italy;5University of Torino, Turin, Italy;6Medical University of Silesia, Katowice, Poland;7The University of Chicago Medicine, Chicago, IL
3:00 PM - 3:15 PM
12. Midterm Outcomes of a Prospective, Nonrandomized Study to Evaluate Endovascular Repair of Complex Aortic Aneurysms Using Fenestrated and Branched Endografts
Gustavo S Oderich1, *Emanuel R Tenorio1, *Bernardo C Mendes2, *Guilherme B Lima1, *Giulianna B Marcondes1, *Joshua Wong1, *Naveed U Saqib1, *Thanila A Macedo1
1University of Texas at Houston, Houston, TX;2Mayo Clinic, Rochester, MN
3:15 PM - 3:30 PM
13. Identification Of Slc38a7 As A Prognostic Marker And Potential Targeted Driver Gene Of Lung Squamous Cell Carcinomas
*Naoki Haratake1, *Qingjiang Hu1, *Tatsuro Okamoto2, *Tomoko Jogo1, *Tetsuzo Tagawa1, *Yoshinao Oda3, *Chie Kikutake4, *Mikita Suyama1, *Motoko Unoki5*Hiroyuki Sasaki5, Motosugu Shimokawa6, Masaki Mori1
1Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan;2Department of Thoracic Oncology, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan;3Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan;4Department of Systems Life Sciences, Graduate School of Systems Life Sciences and Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan;5Division of Epigenomics, Medical Institute of Bioregulation, and Epigenome Network Research Center, Kyushu University, Fukuoka, Japan;6Department of Biostatistics, Graduate School of Medicine, Yamaguchi University, Yamaguchi, Japan
3:30 PM - 3:45 PM
14. Patient Social Vulnerability And Hospital Community Racial/Ethnic Integration: Do All Patients Get The Same Care Across Hospitals?
*J. Madison Hyer, *Rayyan Mirdad, *Adrian Diaz, *Diamantis I Tsilimigras, *Djhenne Dalmacy, Timothy M Pawlik
The Ohio State University, Columbus, OH
3:45 PM - 4:00 PM
15. Comparison Of Operative And Endoscopic Transgastric Debridement For Patients With Necrotizing Pancreatitis
*Tom K Maatman, *Sean P McGuire, *Jeffrey J Easler, *Mohammad A Al-Haddad, *Benjamin L Bick, *Eugene P Ceppa, *John M Dewitt, *Katelyn F Flick, *Evan L Fogel, *Mark A. Gromski, Michael G House, *Mackenzie G. Madison, *Atilla Nakeeb, Christian M Schmidt, *Stuart Sherman, Nicholas J Zyromski
Indiana University, Indianapolis, IN
4:00 PM - 4:15 PM
16. Patient Reported Outcomes After Metabolic Surgery Versus Medical Therapy For Diabetes: Insights From The STAMPEDE Randomized Trial
*Ali Aminian1, *Sangeeta R Kashyap1, *Kathy Wolski1, Stacy A Brethauer2, *John P Kirwan3, *Steven E Nissen1, *Deepak L Bhatt4, Philip R Schauer3
1Cleveland Clinic, Cleveland, OH;2Ohio State University Wexner Medical Center, Columbus, OH;3Pennington Biomedical Research Center, Baton Rouge, LA;4Harvard Medical School, Boston, MA
4:15 PM - 4:30 PM
17. Chemotherapy Versus Chemotherapy Plus Chemoradiation As Neoadjuvant Therapy For Resectable Gastric Adenocarcinoma: A Multi-institutional Analysis
*Casey J Allen1, *David T Pointer2, *Alisa N. Blumenthaler1, *Rutika J. Mehta2, *Sarah E. Hoffe2, *Bruce D. Minsky1, *Grace L. Smith1, *Mariela Blum1, *Paul F. Mansfield1, *Naruhiko Ikoma1, *Prajnan Das1, *Jaffer Ajani1, *Sean P. Dineen2, Jason B. Fleming2, *Brian D. Badgwell1, *Jose M Pimiento2
1University of Texas MD Anderson Cancer Center, Houston, TX;2H. Lee Moffitt Cancer Center, Tampa Bay, FL
4:30 PM - 4:45 PM
18. National Institutes Of Health (NIH) Career Development (K) Awards To Young Surgeons: An Academic Milestone Or One-hit Wonder?
*Jose Wilson Mesquita Neto1, *William Dailey1, *Donald Weaver1, *Jashodeep Datta2, *Francis Macedo3, Nipun Merchant2
1Wayne State University School of Medicine, Detroit, MI;2Sylvester Comprehensive Cancer Center / University of Miami Miller School of Medicine, Miami, FL;3North Florida Regional Medical Center / University of Central Florida College of Medicine, Gainesville, FL
4:45 PM - 5:00 PM
19. Expanding The Donor Pool: First Use Of Hepatitis B Virus NAT Positive Solid Organ Allografts Into Seronegative Recipients
*Aaron M Delman, *Kevin M Turner, *Latifa S Silski, *Tiffany C Lee, *Keith Luckett, *Madison C Cuffy, *Kamran Safdar, *Nadeem Anwar, *Ralph C Quillin, III, *Amit Govil, *Khurram Bari, Shimul A Shah
The University of Cincinnati, Cincinnati, OH
5:00 PM - 5:15 PM
20. Age-Related Opioid Exposure In Trauma: A Secondary Analysis Of The Multimodal Analgesia Strategies For Trauma (MAST) Randomized Trial
*Gabrielle E Hatton, *Heather R Kregel, *Thaddeus J Puzio, *Sasha D Adams, *Charles E Wade, Lillian S Kao, *John A Harvin
McGovern Medical School at UTHealth, Houston, TX
11:00 AM - 11:35 AM
Going Green in the OR
11:00 AM - 11:05 AM
Introduction of the President
Karen E. Deveney, MD
11:05 AM - 11:35 AM
Address by the President
Robin S. McLeod, MD
11:35 AM - 2:50 PM
SCIENTIFIC SESSION III (15 minutes / presentation inclusive of q&a)
Moderator: Karen E. Deveney, MD and Jeffrey A. Drebin, MD
11:35 AM - 11:40 AM
Housekeeping Notes
11:40 AM - 11:55 AM
21. Value Analysis Of Methods Of Inguinal Hernia Repair
*Robert E Glasgow, Sean J Mulvihill, *Brigitte K Smith, *David R Ray, *Jeffrey T Young, Samuel RG Finlayson
University of Utah, Salt Lake City, UT
11:55 AM - 12:10 PM
22. Management of Five Hundred Patients with Malrotated Gut: Thirty Years of Experience with the Introduction of Novel Surgical Techniques
Kareem Abu-Elmagd1, George Mazariegos2, *Neha Parekh1, *Ajai Khanna2, *Marissa Scalish1, *Sherif Armanyous1, *Mohammed Osman1, *Masato Fujiki1, *Giuseppe D'Amico1, *Guilherme Costa1, *Erick Remer1, Matthew Walsh1
1Cleveland Clinic, Cleveland, OH;2University of Pittsburgh Medical Center, Pittsburgh, PA
12:10 PM - 12:25 PM
23. Racial And Ethnic Bias Impact Perceptions Of Surgeon Performance
*Thuy B Tran, *Mustafa Raoof, Loretta Erhunmwunsee, *Veronica Jones, *Namgyal Kyulo, *Mohammad Z Shaikh, *Laleh G Melstrom, Yuman Fong, *Susanne G Warner
City of Hope National Medical Center, Duarte, CA
12:25 PM - 12:40 PM
24. Achieving Highly Reliable Perioperative Care: How Do We Get There?
*Chelsea P Fischer1, *Leandra Knapp2, *Mark E. Cohen2, Clifford Y Ko3, *Elizabeth Wick4
1Loyola University Medical Center, Chicago, IL;2American College of Surgeons, CHICAGO, IL;3UCLA, Los Angeles, CA;4UCSF, San Francisco, CA
12:40 PM - 12:55 PM
25. Optimal Timing Of Administration Of Direct-Acting Antivirals For Patients With Hepatitis C-Associated Hepatocellular Carcinoma Undergoing Liver Transplantation
*Michael K. Turgeon1, Shimul A. Shah2, *Aaron A. Delman2, *Benjamin V. Tran3, *Vatche G. Agopian3, *Joel P. Wedd1, *Joseph F. Magliocca1, *Matthew P. Anderson4, *Chandrashekhar A. Kubal4, *Robert M. Cannon5, Jayme E. Locke5, *Mary A. Simpson6, *Mohamed E. Akoad6, *Chelsey P. Wongjirad7, *Juliet Emamaullee7, *Amika Moro8, *Federico Aucejo8, *Cyrus A. Feizpour9, *Parsia A. Vagefi9, *Mindie H. Nguyen10, Carlos O. Esquivel10, *Kiran Dhanireddy11, *Vijay Subramanian11, *Maia S. Anderson12, *Christopher J. Sonneday12, *Dimitrios Moris13, Debra L. Sudan13, *Marwan Abdouljoud14, *Reena J. Salgia14, *Swaytha R. Ganesh15, Abhinav Humar15, Majella Doyle16, William C. Chapman16, Shishir K. Maithel1
1Emory University, Atlanta, GA;2University of Cincinnati College of Medicine, Cincinnati, OH;3David Geffen School of Medicine at UCLA, Los Angeles, CA;4Indiana University Health, Indianapolis, IN;5University of Alabama, Birmingham, AL;6Lahey Hospital and Medical Center, Boston, MA;7Keck School of Medicine of University of Southern California, Los Angeles, CA;8Cleveland Clinic Foundation, Cleveland, OH;9UT Southwestern Medical Center, Dallas, TX;10Stanford University, Stanford, CA;11Tampa General Hospital, Tampa, FL;12University of Michigan, Ann Arbor, MI;13Duke University School of Medicine, Durham, NC;14Henry Ford Health System, Detroit, MI;15University of Pittsburgh Medical Center, Pittsburgh, PA;16Washington University School of Medicine at St. Louis, St. Louis, MO
12:55 PM - 1:10 PM
26. Participation In A Landmark Critical Limb Ischemia (CLI) Trial Is Inversely Correlated With Amputation Rate In CLI Patients
Alik Farber1, *Maria Fernanda Villarreal Rodriguez1, *Matthew Menard2, *Maxwell Van Over3, *Mark Cziraky3, *Kenneth Rosenfield4, Philip Goodney5
1Boston Medical Center, Boston, MA;2Brigham and Womens Hospital, Boston, MA;3Healthcore Inc, Watertown, MA;4Massachussets General Hospital, Boston, MA;5Dartmouth-Hitchcock Medical Center, Boston, MA
1:10 PM - 1:25 PM
27. Interleukin-10 Producing T-lymphocytes Attenuate Dermal Fibrosis
*Walker D Short, *Xinyi Wang, *Hui Li, *Ling Yu, *Aditya Kaul, *Swathi Balaji, Sundeep G Keswani
Baylor College of Medicine, Houston, TX
1:25 PM - 1:40 PM
28. The Correlation Between Case Total Work Relative Value Unit, Operative Stress And Patient Frailty
*Katherine M Reitz1, *Patrick R Varley1, *Nathan L Liang1, *Ada Youk1, *Elizabeth L George2, *Myrick C Shinall, Jr.3, Paula K Shireman4, *Shipra Arya5, Edith Tzeng1, *Daniel E Hall1
1University of PIttsburgh Medical Center, Pittsburgh, PA;2Stanford University School of Medicine, Standford, CA;3Vanderbilt University Medical Center, Nashville, TN;4University of Texas Health San Antonio, San Antonio, TX;5Stanford University School of Medicine, Stanford, CA
1:40 PM - 1:55 PM
29. The Vertical Sleeve Gastrectomy and Gastroesophageal Reflux Disease Outcomes
*Daniel Leslie, *Eric Wise, *Adam Sheka, *Hisham Abdelwahab, *Ryan Irey, *Ashley Benner, Sayeed Ikramuddin
University of Minnesota, Minneapolis, MN
1:55 PM - 2:10 PM
30. De-escalation Of Endocrine Therapy In Early Hormone Receptor-positive Breast Cancer: When Is Local Treatment Enough?
*Roi Weiser, *Efstathia Polychronopoulou, Douglas S Tyler, V Suzanne Klimberg
UTMB, Galveston, TX
2:10 PM - 2:25 PM
31. Biomarker Evidence Of The Persistent Inflammation, Immunosuppression And Catabolism Syndrome (PICS) In Chronic Critical Illness (CCI) After Surgical Sepsis
*Dijoia B Darden, *Scott C Brakenridge, Philip A Efron, *Gabriela Ghita, *Brittany P Fenner, *Lauren S Kelly, *Alicia M Mohr, *Lyle M Moldawer, Frederick A Moore
University of Florida, Gainesville, FL
2:25 PM - 2:40 PM
32. Outcomes Of Subtotal Parathyroidectomy Versus Total Parathyroidectomy With Autotransplantation For Tertiary Hyperparathyroidism: Multi-instutional Study.
*Woong Y Chung1, *Mohamed A Aboueisha2, *Abdallah S. Attia2, *Mahmoud Omar2, *Ahmad ELnahla2, *Eman A Toraih2, *Mohamed Shama2, *Ryeon Choi1, *Jong J Jeong3, Emad Kandil2
1Department of Surgery, Yonsei University College of Medicine, Seoul, Korea, Democratic People's Republic of2Tulane School of Medicine, Surgery Department, New Orleans, LA;3Department of Surgery, Yonsei University College of Medicine, Seoul, Korea, Republic of
2:40 PM - 2:50 PM
2:50 PM - 4:25 PM
A Public Health Approach to Prevent Firearm Related Injuries and Deaths
Co-Moderators: Robin S. McLeod, M.D.
University of Toronto, Toronto, ON, Canada

Ernest E. Moore, M.D.
University of Colorado, Denver, CO

Effect of Changes Following the Port Arthur Massacre
John A. Crozier, M.D.
Liverpool Hospital, Sydney, Australia

Current Status in New Zealand
Ian D. Civil, MBChB
Auckland City Hospital, Auckland, New Zealand

Current Status of Injuries and Deaths Due to Firearms in the USA
Ronald M. Stewart, M.D.
University of Texas Health Science Center, San Antonio, TX

Can Doctors Play a Role in Decreasing the Risk of Firearm Injuries and Deaths?
Najma Ahmed, M.D.
University of Toronto, Toronto, ON, Canada

Recommendations from the American Collee of Surgeons Medical Summit on Firearm Injury Prevention: What Is Next?
Eileen M. Bulger, M.D.
Harborview Medical Center, Seattle, WA
4:30 PM - 5:25 PM
ASA Fellows Only

Presentation of the Flance-Karl Award
5:25 PM

* By Invitation