Volume and Patterns of Traumatic Injury under Stay-at-home Advisories during the COVID-19 Pandemic: the experience of a New England Level I Trauma Center
*Chloe Williams, Erin Scott, *Jon Dorfman, *Bruce Simon
UMASS, Worcester, MA

Seroprevalence of SARS-CoV-2 antibodies, associated epidemiological factors and antibody kinetics among healthcare workers in Connecticut
Pavlos Papasavas¹, *Sope Olugbile², *Ulysses Wu³, *Kenneth Robinson⁴, *Amity Roberts⁵, *David O'Sullivan⁶, *Tara McLaughlin¹, *Jeff Mather⁶, *Adam Steinberg⁷, Rocco Orlando⁷, *Ajay Kumar^8
1Surgery, Hartford Hospital, Hartford, CT, ²Cancer Institute, Hartford Hospital, Hartford, CT, ³Administration, Hartford Healthcare, Hartford, CT, ⁴Emergency Medicine, Hartford Hospital, Hartford, Connecticut, United States, ⁵Clinical Laboratory Services, Hartford Hospital, Hartford, CT, ⁶Research Program, Hartford Hospital, Hartford, CT, ⁷Medical Affairs, Hartford Healthcare, Hartford, CT, ⁸Clinical Affairs, Hartford Healthcare, Hartford, CT

Occult Traumatic Pneumothorax: Is Routine Follow Up Chest X-ray Necessary?
Bishwajit Bhattacharya, Kevin Schuster, *Rick O'Connor, Robert Becher, Kimberly A. Davis, Adrian A. Maung
Yale School of Medicine, New Haven, CT

Besieged in the Bronx: Lessons from an In-Hospital Mass Casualty. Report of a single institution's response to the largest mass casualty event in a hospital in the history of the United States.
*Kristen Bridges-Tran¹, *Pratibha Vemulapalli⁴, *Allen Deborah², *Bentley John³, Brian Gilchrist^1
1Surgery, Richmond University Medical Center, Staten Island, NY ²Orthopedic Surgery, Bronxcare, Bronx, NY, ³Surgery, Bronx Lebanon Hospital Center, Bronx, NY, ⁴Surgery, Brooklyn Hospital Center, Brooklyn, NY

Human Myeloid Cell Infiltration in Pancreatic Ductal Adenocarcinoma Is Increased in FLT3 Ligand Knockout Humanized Mice
*Hannah Buettner¹, *Jane Chuprin², *Michael Brehm², Giles Whalen^1
1Surgery, University of Massachusetts Memorial Medical Center, Worcester, MA, ²Department of Molecular Biology, University of Massachusetts Medical School, Worcester, MA

Examining the impact of COVID-19 visitor restrictions and communication modalities on family member satisfaction in the surgical intensive care unit
*Tessa Cattermole¹, *Emma Dunne², *Thomas Ahern¹, Ajai Malhotra¹, *Larson Erb^1
1Surgery, University of Vermont, Burlington, VT, ²Larner College of Medicine, University of Vermont, Burlington, VT

Impact of a covid free pathway on the outcomes of Living donor transplants
*SUMAN BHUSHAN KOGANTI, *Yee Lee Cheah, *Caroline J. Simon, *Miguel E. Tobon, *Edward Walshe, *Frederic Gordon, *Mohamed Akoad
HPB and Abdominal Transplantation, Lahey Hospital and Medical Center, Burlington, MA

Merkel Cell Carcinoma: Characteristics Associated with Recurrence Free Survival and Improved Overall Survival at a Single Institution
Andrew C. Esposito¹, *Daniel Jacobs², Stephan Ariyan³, *Anjela Galan⁴, *Harriet Kluger⁵, James Clune³, *Sarah Weiss⁵, *Thuy Tran⁵, Kelly Olino^1
1Department of Surgery, Division of Surgical Oncology, Yale-New Haven Hospital, New Haven, CT, ²Yale School of Medicine, New Haven, CT, ³Department of Surgery Division of Plastic Surgery, Yale School of Medicine, New Haven, CT, ⁴Department of Dermatology and Pathology, Yale School of Medicine, New Haven, CT, ⁵Department of Medicine, Division of Medical Oncology, Yale School of Medicine, New Haven, CT

Duodenal switch and single anastomosis duodeno-ileal bypass with sleeve gastrectomy for morbid obesity: a single institution experience
Piyush Gupta, *Brett Baker, *Tiare Pimentel, *Sara Tortorici, Dmitry Nepomnayshy, *Heather Ford, Thomas Schnelldorfer, Reuben Shin, David M. Brams
General Surgery, Lahey Hospital and Medical Center, Burlington, MA

Single vs Three Port Laparoscopic Appendectomy for Pediatric Acute Appendicitis
Max D. Hazeltine, *Brittany Dacier, Michael P. Hirsh, Jeremy T. Aidlen, Muriel A. Cleary
Surgery, University of Massachusetts Medical School, Worcester, MA

Sleeve Gastrectomy and GERD
*Jeremiah Hyslip, *Thuy Duong Doan, *Nicole Cherng, Richard Perugini
University of Massachusetts Medical School, Worcester, MA

Medicaid and Age Extremes Are Risk Factors for Readmission for Diverticulitis: A Retrospective Review of a Large Hospital System
*Gary Jain, *Daniel Ricaurte, *Lindsay Lynch, *Quian Callender, Rocco Orlando, Jonathan D. Gates, *Oscar Serrano, *Jane Keating
Hartford Hospital, Hartford, CT

Alcohol Withdrawal Syndrome in Trauma Patients: A Trauma Quality Programs Study
*Tyler Jones, Bishwajit Bhattacharya, Kevin Schuster, Robert Becher, *Lisa Kodadek, Kimberly A. Davis, Adrian A. Maung
Surgery, Yale School of Medicine, New Haven, CT

Effect of COVID-19 On General Surgery Residency Education: A Retrospective Analysis of Resident Performance and Resource Utilization
*Andrew Kemerley¹, Brian Shames¹, *Janice Hutchison¹, *Ilene Staff², *Bret Schipper¹, ³, *Alfred Croteau¹,³, *Oscar K. Serrano¹,^3
1Department of Surgery, University of Connecticut School of Medicine, Farmington, CT, ²Hartford HealthCare Research Administration, Hartford, CT, ³Department of Surgery, Hartford Hospital, Hartford, CT

Intersectionality of Demographics and Surgical Oncology: Influence of Insurance, Race, and Rurality on Lung and Colorectal Cancer Care
*Mary M. Leech², *Julie Weiss³, *Chad Markey², Andrew Loehrer^1
1Department of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH, ²Geisel School of Medicine at Dartmouth, Hanover, NH, ³Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH

Institutional Variation in Gastrostomy Tube Placement after Duodenal Atresia Repair in Children with Trisomy 21
Nathan L. Maassel¹, *Mary Elizabeth Guerra¹, Daniel Solomon², David Stitelman^2
1Surgery, Yale School of Medicine, New Haven, CT, ²Department of Surgery, Division of Pediatric Surgery, Yale School of Medicine, New Haven, CT

Timing of Tracheostomy in Neonates with Bronchopulmonary Dysplasia and Prolonged Mechanical Ventilation
Nathan L. Maassel¹, *Kiley Trott², Michael Caty³, Daniel Solomon^3
1Surgery, Yale School of Medicine, New Haven, CT, ²Department of Surgery, Otolaryngology, Yale School of Medicine, New Haven, CT, ³Department of Surgery, Division of Pediatric Surgery, Yale School of Medicine, New Haven, CT

Laparoscopic splenectomy prior to stem cell transplant for myelofibrosis with myeloid metaplasia may improve long-term survival
*Emily E. Mackey, Richard Perugini
Surgery, University of Massachusetts Medical Center, Worcester, MA

Moving the Needle in Pancreatic Cancer: The Impact of Modern Treatment Paradigm on Survival
*Abdimajid Mohamed¹, Timothy Fitzgerald¹, Dougald Macgillivray², *Cynthia Hayward^3
1Surgical Oncology, Tufts University School Of Medicine/Maine Medical Center, Portland, ME, United States, ²Endocrine, Maine Medical Center, Portland, ME, ³Oncology, Maine Medical Center, Scarborough, ME

Impact of the COVID-19 Pandemic on Breast Cancer Presentation and Treatment Recommendations: A Multi-Hospital Health System Experience
*Shiva Niakan, *Jesse Casaubon, *Aixa M. Perez Caraballlo, *Danielle Lipoff, Holly Mason
Baystate Medical Center, Springfield, MA

The effects of total neoadjuvant therapy compared with traditional therapy in rectal cancer.
*Yasmeen Z. Qwaider¹, *Swati Sonal¹, *Chloe Boudreau¹, *Robert Goldstone¹, Rocco Ricciardi¹, Liliana G. Bordeianou¹, Hiroko Kunitake¹, David L. Berger^1
1General/Gastrointestinal Surgery, Massachusetts General Hospital, Boston, MA, ²All India Institute of Medical Sciences, New Delhi, New Dehli, India

Impact of Education Level on Patient Perception of Surgical Weight Loss Postoperative Support Needs: A Qualitative Analysis
*Rachel J. Reindorf¹, *Sara Tortorici², David M. Brams^2
1Tufts University School of Medicine, Boston, MA, ²Division of General Surgery, Lahey Hospital and Medical Center, Burlington, MA

Tumor Necrosis Factor-alpha Increases Paracrine Expression and Survivability of Vascular Smooth Muscle Cells
*Daniel C. Sasson, *Kaiti Duan, *Biraja C. Dash, *Henry C. Hsia
Section of Plastic and Reconstructive Surgery, Department of Surgery, Yale School of Medicine, New Haven, CT

The impact of a multidisciplinary COVID-19 testing protocol on surgical volume: the Hartford Healthcare experience.
*Bret Schipper, *Oscar Serrano, Pavlos Papasavas, *Mitch McClure, *Ajay Kumar, jeffrey Cohen, Steven Shichman, Rekha Singh, william Sardella, Rocco Orlando
University of Connecticut, Farmington, CT

Association between PCOS and Pilonidal Disease among Adolescent Girls
*Naomi Adjei, *Nicholas Yung, *Gwendolyn Towers, Daniel Solomon, *Alla Vash-Margita
Yale New Haven Hospital, Northford, CT

Efficacy and satisfaction of postoperative asynchronous TeleHealth compared to in-person visits following colorectal surgery
Catherine C. Beauharnais¹, *Susanna S. Hill², *Jennifer S. Davids¹, *Paul R. Sturrock¹, *Karim Alavi¹, Justin A. Maykel^1
1Colorectal Surgery, UMass Memorial Medical Center, Worcester, MA, ²Surgery, Albany Medical Center, Albany, NY

Evaluating 30-Day Readmission Rates after Ileostomy Reversal
Catherine C. Beauharnais¹, *Nicholas M. Sweeney², *Jennifer S. Davids¹, *Karim Alavi¹, Justin A. Maykel¹, *Paul R. Sturrock^1
1Colorectal Surgery, UMass Memorial Medical Center, Worcester, Massachusetts, United States, ²Rutgers University, New Brunswick, NJ

Physical activity before and after sleeve gastrectomy surgery and relationship to one year weight loss
*Richard Seip, *Erika Renkl, *Gabrielle Eustache, Darren Tishler, *Tara McLaughlin, *Diana King, *Godfrey Pearlson, *Devika Umashanker, *Marinka Koenis, Pavlos Papasavas
Hartford Hospital, Hartford, CT