Scientific Session I
Moderators: Walter E. Longo and Christina V. Angeles

1. The Emergency Surgery Score (ESS) is a Powerful Predictor of Outcome Across Multiple Surgical Specialties: A Nationwide Analysis
*Reem AlSowaiegh, *Reem AlSowaiegh, *Leon Naar, *Mohamad El Moheb, *Jonathan Parks, *Jason Fawley, *April Mendoza, *Noelle Saillant, George Velmahos, Haytham Kaafarani
Massachusetts General Hospital, Harvard Medical School, Boston, MA

+2. Geriatric Trauma Patients Are Not Just Older Adults: The Need For A Geriatric Specific Injury Severity Score Scale
*Carmen Fahlen, *Andrew H. Stephen, *Carla C. Moreira, Daithi S. Heffernan
Department of Surgery, Brown University, Providence, RI

+3. A Contemporary Experience of Posterior Retroperitoneoscopic Adrenalectomy in the United States
Alexander Chiu, *Susana Vargas-Pinto, *Sara Abou-Azar, *Richard Maduka, *Jianling Man, *Nicholas Peters, Tobias Carling, Courtney Gibson
Yale School of Medicine, New Haven, CT

+4. Guideline-Directed Prescribing and Proper Disposal of Excess Opioids After Inpatient Surgery: A Prospective Clinical Trial
Eleah D. Porter¹, *Ilda B. Molloy¹, *Sarah Y. Bessen², *Julia L. Kelly¹, Richard J. Barth^1
1Dartmouth-Hitchcock Medical Center, Lebanon, NH; ²Geisel School of Medicine, Hanover, NH

+5. Cost-Effectiveness Analysis: Lymph Node Transfer versus Lymphovenous Bypass for Breast Cancer Related Lymphedema
*Yurie Sekigami¹, *Sydney Char², *Cate Mullen¹, *Kathryn Huber¹, *Yu Cao¹, *Rachel Buchsbaum¹, Roger Graham¹, *Salvatore Nardello³, *Dhruv Singhal⁴, *Abhishek Chatterjee^1
1Tufts Medical Center, Boston, MA; ²Tufts University School of Medicine, Boston, MA; ³Tufts Community Care, Melrose, MA; ⁴Beth Israel Deaconess Medical Center, Boston, MA

^Brief 1. Prolonged Survival of Genetically Modified Pig Livers During Machine Perfusion With Human Blood
*Taylor M. Coe¹, *Danielle Detelich¹, *Charles G. Rickert¹, *Cailah Carroll¹, *Nikolaos Serifis¹, *Rudy Matheson¹, *Siavash Raigani¹, *Ivy Rosales¹, *Wenning Qin², *Yinan Kan², *Jacob Layer², *Michele Youd², *William Westlin², *Shoko Kimura¹, *Agnes Azimzadeh¹, *Luhan Yang², James F. Markmann^1
1Massachusetts General Hospital, Boston, MA; ²eGenesis, Cambridge, MA

Co-Recipient Brief Award Prize
^Brief 2. Non-Therapeutic, Low-Dose Unfractionated Heparin Administration Inhibits Pulmonary Growth and Development
*Victoria H. Ko, *Lumeng J. Yu, *Jordan D. Secor, *Duy T. Dao, *Amy Pan, Mark Puder
Boston Children's Hospital, Boston, MA

^Brief 3. Feasibility of Organoid-Based Modeling for Human Intraductal Papillary Mucinous Neoplasms of the Pancreas
*Nicholas V Peters, *Prashanth Gokare, *Nesrin Hasan, *Paulomi B Aldo, *Anup R Sharma, Ronald R Salem, Nita Ahuja, John W Kunstman
Yale University, New Haven, CT

^Brief 4. Does Size of Intensive Care Units Affect Mortality Among Sepsis Patients? Results of a Nationwide Retrospective Analysis
*Leon Naar, *Majed W. El Hechi, *Mohamad El Moheb, *Jason Fawley, *Jonathan Parks, *April E. Mendoza, *Noelle N. Saillant, George Velmahos, Haytham Kaafarani, *Jarone Lee
Massachusetts General Hospital, Harvard Medical School, Boston, MA

Co-Recipient Brief Award Prize
^Brief 5. Under-triage of Severely Injured Older Adults: Do system-level factors explain it?
*Manuel Castillo-Angeles¹, *Tarsicio Uribe-Leitz¹, *Daniel Sturgeon¹, *Craig D. Newgard², *Zara Cooper¹, Ali Salim¹, *Molly P. Jarman^1
1Brigham and Women's Hospital, Boston, MA; ²Oregon Health & Science University, Portland, OR

Presidential Message & New Member Introductions
Reverence For The Past Often Predicts Success of The Future
Walter E. Longo

Scientific Session II
Moderators: Jennifer L. Irani and Peter J. Mazzaglia

+6. Peritoneal Carcinomatosis: A Population-Based Study on the Predictors of Improved Survival
*Nensi M. Ruzgar, *Holly N. Blackburn, *Anup Sharma, Nita Ahuja
Yale University School of Medicine, New Haven, CT

+7. Does Preoperative Calcium and Calcitriol Decrease Rates of Post-thyroidectomy Hypocalcemia? A Randomized Clinical Trial
*Colleen Donahue¹, *Haddon Pantel², *Bharat Yarlagadda¹, David Brams^1
1Lahey Hospital and Medical Center, Boston, MA; ²Yale New Haven Health, New Haven, CT

First Place Podium Prize Winner
+8. Teaching the Learner to Teach: An Effective Curriculum to Engage Residents as Educators
*Mollie R Freedman-Weiss, *Samantha L Ahle, *Erin M White, *Martin D Slade, *Dana W Dunne, *John A Encandela, Daniel G Solomon, *Kristen D Oliveira, Walter E Longo, *Janet P Hafler, Peter S Yoo
Yale School of Medicine, New Haven, CT

+9. Centers that Routinely Admit Postoperative EVARs to the ICU Have Similar Perioperative Outcomes with Longer Length of Stay Than Those That Do Not
*Thomas W. Cheng¹, Alik Farber¹, *Scott R. Levin¹, *Mahmoud B. Malas², *Philip P. Goodney³, *Virendra I. Patel⁴, *Denis Rybin⁵, Jeffrey J. Siracuse^1
1Boston University School of Medicine, Boston, MA; ²University of California San Diego, San Diego, CA; ³Dartmouth-Hitchcock Medical Center, Lebahnon, NH; ⁴Columbia University College of Physicians and Surgeons, New York City, NY; ⁵Boston University School of Public Health, Boston, MA

+10. Enteral nutrition is associated with high rates of pneumonia in intensive care unit (ICU) patients with acute pancreatitis
*Apostolos Gaitanidis, *Kerry Breen, *April Mendoza, *Noelle Saillant, *Jason Fawley, Haytham Kaafarani, *Jonathan Parks, George Velmahos, *Peter J Fagenholz
Massachusetts General Hospital, Boston, MA

+11. Combined HPB Volume Protects Hepatectomy Outcomes at Low-Volume Liver Centers
*Susanna W. de Geus, *Jian Zheng, *Krista Hachey, *Sing Chau Ng, David McAneny, Teviah E. Sachs, Jennifer F. Tseng
Boston Medical Center, Boston, MA

Scientific Session III
Moderators: Baird Mallory and Alisa Savetamal

+12. General Versus Neuraxial Anesthesia for Appendectomy: A Multicenter International Study
*Mohamad El Moheb¹, *Ava Mokhtari¹, *Kelsey Han¹, *Majed El Hechi¹, *Zhenyi Jia², *Napaporn Kongkaewpaisan³, *Manasnun Kongwibulwut⁴, *Gabriel Rodriguez¹, *Camilo Ortega⁵, *Huanlong Qin⁶, *Jun Yang², *Renyuan Gao⁷, *Zhiguo Wang⁸, *Zhiguang Gao⁹, *Supparerk Prichayudh¹⁰, *Gwendolyn van der Wilden¹¹, *Stephanie Santin¹², *Marcelo A.F. Ribeiro Jr¹³, *Napakadol Noppakunsomboom³, *Joseph Sakran¹⁴, *Bellal Joseph¹⁵, *Ramzi Alami¹⁶, Haytham Kaafarani^1
1Massachusetts General Hospital, Harvard Medical School, Boston, MA; ²Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China; ³Siriraj Hospital, Mahidol University, Bangkok, Thailand; ⁴Chulalongkorn University, Bangkok, Thailand; ⁵Hospital Departamental Villavicencio, Villavicencio, Colombia; ⁶Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China; ⁷Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, Shanghai, China; ⁸Changzheng Hospital, Navy Medical University, Shanghai, China; ⁹Shanghai East Hospital of Tongji University, Shanghai, China; ¹⁰King Chulalongkorn Memorial Hospital, Bangkok, Thailand; ¹¹Leiden University Medical Center, Leiden, Netherlands; ¹²Hospital Brasil Rede D'Or, São Paulo, Brazil; ¹³Hospital Servidor Publico Estadual IAMSPE, Hospital Moriah, São Paulo, Brazil; ¹⁴The Johns Hopkins University, Baltimore, MD; ¹⁵University of Arizona, Tucson, AZ; ¹⁶American University of Beirut, Beirut, Lebanon

Third Place Podium Prize Winner
+13. Laparoscopic Inguinal Hernia Repair Under Spinal Anesthesia
*Meagan Derbyshire, *Heather Grant, *Antonio Lam, *Victoria Pepper, *Gregory Banever, *David Tashjian, *Kevin Moriarty, Michael Tirabassi
Baystate Medical Center, Springfield, MA

^Brief 6. Early Video-Assisted Thoracoscopic Surgery May Reduce Hospital and ICU Length of Stay in Children With Traumatic Hemothorax
*Heather M. Grant^1,2,3, *Alexander Knee⁴, Michael V. Tirabassi^1,5
1UMass Medical School - Baystate Medical Center, Springfield, MA; ²Institute for Healthcare Delivery and Population Science, Springfield, MA; ³Tufts Clinical and Translational Science Institute, Boston, MA; ⁴Epidemiology and Biostatistics Research Core, Office of Research, Baystate Medical Center Department of Medicine, UMass Medical School - Baystate, Springfield, MA; ⁵Baystate Children's Hospital, Springfield, MA

Brief 7. Changes in Lymphadenectomy patterns for Sentinel Node Positive Melanoma at a high Volume skin cancer center following MSLT II publication
Laurence E. McCahill, *Mark Kosten, *Jensen Jantz
Metro Health University of Michigan Health, Grand Rapids, MI

^Brief 8. Impact of Modern Neoadjuvant Chemotherapy on Perioperative Outcomes in Patients Undergoing Pancreaticoduodenectomy for Adenocarcinoma.
*Sara Abou Azar, *Whitney S. Brandt, Raymond A. Jean, John W. Kunstman, Ronald R. Salem
Yale University School of Medicine, New Haven, CT

Panel: Hot Topics in Surgical Education

Moderator:	Peter S. Yoo, Yale University, New Haven, CT
Faculty:	David T. Harrington, Rhode Island Hospital, Providence, RI Douglas S. Smink, Brigham & Women's Hospital, Boston, MA

Scientific Session IV
Moderators: Kari Rosenkranz and Matthew A. Nehs

Paper of the Year.
14. Radiological and Surgical Implications of Neoadjuvant Treatment With FOLFIRINOX for Locally Advanced and Borderline Resectable Pancreatic Cancer
Cristina R. Ferrone ¹, Giovanni Marchegiani², Theodore S. Hong¹, David P. Ryan¹, Vikram Deshpande¹, Erin I. McDonnell³, Francesco Sabbatino⁴, Daniela Dias Santos¹, Jill N. Allen¹, Lawrence S. Blaszkowsky¹, Jeffrey W. Clark¹, Jason E. Faris¹, Lipika Goyal¹, Eunice L. Kwak¹, Janet E. Murphy¹, David T. Ting¹, Jennifer Y. Wo¹, Andrew X. Zhu¹, Andrew L. Warshaw¹, Keith D. Lillemoe¹, Carlos Fernández-del Castillo^1
1Massachusetts General Hospital ²University of Verona ³University of Notre Dame ⁴Harvard University

+15. Factors Associated with Improved Disease-Free Interval in Retroperitoneal Sarcoma
*Brooke C. Bredbeck, *Lia Delaney, *Jodi Wilkowski, *Rashmi Chugh, *Lesly A. Dossett, *Michael S. Sabel, Christina V. Angeles
University of Michigan, Ann Arbor, MI

+18. Where Are They Now? Charting Careers for 32 Years of NESS Podium Presentation Winners
*Erin M. White, *Shawn Ahn, Peter S. Yoo
Yale University, New Haven, CT

^Brief 9. Surgical Treatment For Zenker's Diverticulum: A Critical Evaluation Of The Outcomes
*Haley Leesely, *Roberto Cortez, *Michael Kwok, *Lindsey Moran, Thomas Ng
Brown Medical School, Providence, RI

^Brief 10. Factors Predicting Hypocalcemia After Total Thyroidectomy. The CESQIP Experience
*Eva Fuentes, *Sean Wrenn, *Asmae Toumi, *Carrie C. Lubitz, *Sareh Parangi, Antonia E. Stephen
Massachusetts General Hospital, Cambridge, MA

^Brief 11. The of Effect of Indocyanine Green Angiography on Anastomotic Stricture Rate After Esophagectomy
*Pooja T Desai, *Osler Turner, Edward Borrazzo
University of Vermont Medical Center, Burlington, VT

Debate: Contralateral Prophylactic Mastectomy: Better Sleep or Too Much Creep?
Moderators: Kari Rosenkranz and Anne Larkin
Pro: Laura Dominici
Con: Jennifer LaFemina

Scientific Session V
Moderators: Erika L. Rangel and Donald T. Hess, Jr.

19. Surgeon Experience Does Not Impact Outcomes of Emergency Surgery, a Prospective Multi-center Study
Kevin M. Schuster¹, *Joshua P. Hazelton², *Deviny Rattigan², *Dennis Kim³, *Lara H. Spence³, *David Turray⁴, *Xina Luo-Owen⁴, *Javier M. Perez⁵, *Saraswati Deval⁵, *Melissa Blatt^5
1Yale School of Medicine, New Haven, CT; ²Cooper University Hospital, Camden, NJ; ³Harbor UCLA Medical Center, Torrance, CA; ⁴Loma Linda Medical Center, Loma Linda, CA; ⁵Hackensack University Medical Center, Hackensack, NJ

+20. Evaluation of Firearm-related Recidivism in Connecticut An Opportunity for Gun Violence Prevention
*Kathleen M. O'Neill, *James Dodington, Kimberly Davis, *Robert D. Becher
Yale New Haven Hospital, New Haven, CT

+21. Time Interval Between Radiotherapy and Surgery Does Not Affect Outcomes in Rectal Cancer
*Yasmeen Z. Qwaider, *Naomi M. Sell, *Robert N. Goldstone, *Christy E. Cauley, Rocco Ricciardi, Liliana G. Bordeianou, Hiroko Kunitake, David L. Berger
Massachusetts General Hospital, Boston, MA

+22. Direct admission to improve timely access to Level I trauma care: a cohort study
*Apostolos Gaitanidis, *Kerry Breen, *Alice Gervasini, *Ali Raja, *Peter Dunn, George Velmahos, *Kyan Safavi
Massachusetts General Hospital, Boston, MA

Scientific Session VI
Moderators: Ali Tavakkoli and Sandra Wong

+23. Incidence and Risk Factors of Long-term Mesh Explantation Due to Infection Following Hernia Surgery
*William J. O'Brien^1,2, *Radwan Dipp Ramos¹, *Kalpana Gupta³, Kamal Itani^1
1VA Boston Department of Surgery, Boston, MA; ²VA Boston Center for Healthcare Organization and Implementation Research, Boston, MA; ³VA Boston Department of Medicine, Boston, MA

Second Place Podium Prize Winner
+24. Transfer or Keep Criteria: Defining emergency general surgery (EGS) patients who can remain at the rural community hospital
*Jennifer MacDowell¹, Brad Cushing¹, *Crystal Russell¹, *Shantanu Razdan¹, *Josh Barnes-Livermore¹, *Jane Lee², *Ryan Knapp², *Eric Osborne^2
1Maine Medical Center, Portland, ME; ²Stephens Memorial Hospital, Norway, ME

^Brief 12. Primary Versus Staged Repairs of Gastroschisis; Clinical Outcomes and Hospital Costs in 2016
*Alex M. Lin, *Brendan R. McFall, Kevin P. Moriarty, Michael Tirabassi
Baystate Medical Center, Springfield, MA

^Brief 13. What are the Long-Term Changes to Bowel Function Patient-Reported Outcomes After Elective Sigmoidectomy for Diverticular Disease?
*Phillip Gray, Jenaya Goldwag, *Mark Eid, Srinivas Ivatury
Dartmouth Hitchcock Medical Center, Lebanon, NH

Posters of Distinction Session
Moderators: Daniel Solomon and Annmarie Dunican

Best Poster Award Winner
POD 1. A Single Intratumoral Injection of Ipilimumab Induces Changes in T-lymphocytes and Delays Subsequent Tumor Growth
*Hannah Buettner, *Jane Chuprin, *Michael Brehm, Giles Whalen
University of Massachusetts Medical Center, Worcester, MA

POD 2. The Emergency Surgery Score (ESS) Accurately Predicts the Need for Post-Discharge Respiratory and Renal Support after Emergent Laparotomies: A Prospective Multicenter Study
*Majed El Hechi, *Napaporn Kongkaewpaisan, *Leon Naar, Haytham M.A. Kaafarani
The EAST-ESS Collaborative Massachusetts General Hospital, Harvard Medical School, Boston, MA

POD 3. Risk Factors for Developing Ischemic Gastrointestinal Complications in Patients Undergoing Open Cardiac Surgical Procedures: A Single-Center Experience of 6,862 Consecutive Patients
*Leon Naar, *Napaporn Kongkaewpaisan, *Nikolaos Kokoroskos, *George Tolis, *Serguei Melnitchouk, *Mauricio Villavicencio-Theoduloz, *April E. Mendoza, George Velmahos, Haytham Kaafarani, *Arminder Singh Jassar
Massachusetts General Hospital, Harvard Medical School, Boston, MA

POD 4. Postoperative Opioid Prescription in The United States: A Nationwide County-Level Analysis
*Apostolos Gaitanidis, *Inge van Erp, *Kerry Breen, *Lydia Maurer, *Leon Naar, *Mohamad El Moheb, *April Mendoza, *Noelle Saillant, George Velmahos, Haytham Kaafarani
Massachusetts General Hospital, Harvard Medical School, Boston, MA

POD 5. An ACS NSQIP Analysis of Surgical Outcomes for Intraductal Papillary Mucinous Neoplasms of the Pancreas
*Samuel M Miller, *Joseph T King, *Vanita Ahuja, Ronald R Salem, John W Kunstman
Yale University School of Medicine, New Haven, CT

POD 6. Preoperative factors associated with major bleeding in patients with ESRD undergoing elective abdominal surgeries: a retrospective NSQIP cohort study
*Joy Zhou, Sivamainthan Vithiananthan
Warren Alpert Medical School of Brown University, Providence, RI

POD 7. The effect of anticoagulation on pulmonary function and endothelial cell survival
*Lumeng J. Yu, *Victoria H. Ko, *Amy Pan, *Jordan D. Secor, *Duy T. Dao, *Lorenzo Anez-Bustillos, Mark Puder
Boston Children's Hospital, Boston, MA

POD 8. Ketogenic diet combined with inhibition of glycolysis improves survival in an orthotopic mouse model of anaplastic thyroid cancer
*Bixiao Zhao, *Abha Aggarwal, *Jessica Marshall, Matthew Nehs
Brigham and Women's Hospital, Boston, MA

POD 9. Factors Associated With Tunneled Dialysis Catheter Placement at the Time of Initial Hemodialysis Arteriovenous Access Creation
*Tyler Ryan¹, Alik Farber¹, *Thomas W. Cheng¹, *Stephen Raulli¹, *Kristiana Sather², *Quinten Dicken¹, *Yixin Zhang¹, Jeffrey J. Siracuse^1
1Boston University School of Medicine, Boston, MA; ²University of Minnesota, Minneapolis, MN

POD 10. The effect of Hepatitis B Virus Infection on Long-Term Outcomes after Kidney Transplantation
*Qing Yuan^1,2,3, *Shanjuan Hong¹, *Eve Roth^1,3, *Andric Perez-Ortiz¹, Nahel Elias^1,3
1Massachusetts General Hospital, Boston, MA; ²⁸th Medical Center, Chinese PLA General Hospital, Beijing, China; ³Harvard Medical School, Boston, MA