Moderators:

Shahin Ayazi, Pittsburgh, PA Renato Salvador, Padova, Italy Yalini Vigneswaran, Chicago, IL

Sp1082
IMPACT OF ANTIREFLUX SURGERY ON ESOPHAGEAL MOTILITY
Shahin Ayazi
Esophageal Institute, Department of Surgery, Allegheny Health Network, Pittsburgh, PA

Sp1083
50 YEARS OF ESOPHAGEAL PH MONITORING AND DEMEESTER SCORE
Steven R. DeMeester
CEO, Foundation for Research and Education in Esophageal and Foregut Disease

Sp1084
PREOPERATIVE NECESSITY AND PROGNOSTIC UTILITY OF MANOMETRY PRIOR TO ANTIREFLUX SURGERY
Brian E. Louie
Thoracic Surgery, Swedish Cancer Institute, Seattle, WA

Sp1085
VALUE OF ENDOFLIP BEFORE, DURING AND AFTER ANTIREFLUX SURGERY
Rasa Zarnegar
Surgery, Weill Cornell Medical College, New York, NY

Sp1086
ESOPHAGEAL PHYSIOLOGY TESTING IN ASSESSMENT OF SYMPTOMATIC PATIENTS AFTER ANTIREFLUX SURGERY
John C. Lipham
Surgery, Los Angeles, CA

Moderators:

Paulo Goffredo, Minneapolis, MN Fadwa Ali, Dallas, TX Sanjiv Haribhakti, Ahmedabad, India

1073. PLASMA LEVELS OF ACTVIN A SIGNIFICANTLY INCREASED IN PATIENTS WITH COLORECTAL CANCER COMPARED TO BENIGN DISEASE PATIENTS
Hmc Shantha Kumara*¹, Hiromichi Miyagaki², Yi-Ru Chen¹, Neil Mitra¹, Elizabeth Nilsson Sjolander¹, Xiaohong Yan³, Vesna Cekic¹, Richard L. Whelan^1
1Department of Surgery, Lenox Hill Hospital, Northwell Health, New York, NY; ²Department of Surgery, Otemae Hospital, Osaka, Chuo-ku, Osaka, Japan; ³Department of Pathology and Cell Biology, Columbia University Medical Center, Vanderbilt Clinic, New York, NY

1074. LONGITUDINAL OPERATIVE FEEDBACK TOOL FOR COLORECTAL SUBSPECIALTY TRAINING
Jerry Xiao*¹, Jeffrey Van Eps², Marianne Cusick^2
1Surgery, Houston Methodist Hospital, Houston, TX; ²UT Health Science Center, Houston, TX

1075. IMMUNOREACT 17: CD8+ T LYMPHOCYTE EXHAUSTION IN ELDERLY PATIENTS WITH RECTAL CANCER
Laura Marinelli*³, Andromachi Kotsafti⁴, Astghik Stepanyan¹, Gaia Tussardi¹, Melania Scarpa⁴, Antonio Rosato⁴, Ottavia De Simoni⁴, Francesca Bergamo⁴, Valerio Pellegrini⁵, Matteo Fassan⁵, Ivana Cataldo⁵, Carlotta Ceccon⁵, Anna Pozza⁵, Roberta Salmaso², Federico Scognamiglio¹, Cesare Ruffolo¹, Imerio Angriman², Silvia Negro², Chiara Vignotto¹, Luca Facci¹, Giorgio Rivella¹, Quoc R. Bao¹, Andrea Baldo¹, Giulia Pozza¹, Maurizio Zizzo⁶, Giovanni Pirozzolo⁷, Giovanni Bordignon⁷, Isabella Mondi⁷, Silvio Guerriero⁸, Giuseppe Portale⁹, Lavinia Ceccarini⁹, Mattia Barbareschi^3,10, Giovanni Bertalot^3,10, Alberto Brolese³, Giulia Noaro¹¹, Giulia Becherucci¹², Andrea Porzionato², Francesco Cavallin¹³, Barbara Di Camillo², Ignazio Castagliuolo², Gaya Spolverato², Marco Scarpa^2
1Chirurgia Generale ³, Azienda Ospedale Universita Padova, Padova, Veneto, Italy; ²Universita degli Studi di Padova, Padova, Veneto, Italy; ³Ospedale Santa Chiara di Trento, Trento, Trentino-Alto Adige, Italy; ⁴Istituto Oncologico Veneto IRCCS, Padova, Veneto, Italy; ⁵Azienda ULSS n ² Marca Trevigiana, Treviso, Veneto, Italy; ⁶Azienda Unita Sanitaria Locale - IRCCS Tecnologie Avanzate e Modelli Assistenziali in Oncologia di Reggio Emilia, Reggio Emilia, Emilia-Romagna, Italy; ⁷Azienda ULSS ³ Serenissima, Venezia, Veneto, Italy; ⁸Azienda Sanitaria Territoriale Fermo, Porto San Giorgio, Italy; ⁹Azienda ULSS ⁷ Pedemontana, Bassano del Grappa, Veneto, Italy; ¹⁰Universita degli Studi di Trento, Trento, Trentino-Alto Adige, Italy; ¹¹Azienda ULSS ⁶ Euganea, Padova, Veneto, Italy; ¹²Azienda ULSS n ¹ Dolomiti, Belluno, Veneto, Italy; ¹³Independent Statistician, Solagna, Veneto, Italy

1076. IMMUNOREACT 18: FAMILIAL PREDISPOSITION TO COLORECTAL CANCER AFFECTS THE IMMUNE LANDSCAPE IN RECTAL CANCER PATIENTS.
Silvia Negro², Melania Scarpa*³, Astghik Stepanyan¹, Sara Vedovato², Gaia Tussardi¹, Andromachi Kotsafti³, Antonio Rosato³, Ottavia De Simoni³, Francesca Bergamo³, Emanuele D. Urso², Valerio Pellegrini⁴, Ivana Cataldo⁴, Carlotta Ceccon², Anna Pozza⁴, Roberta Salmaso², Cesare Ruffolo¹, Imerio Angriman², Chiara Vignotto¹, Luca Facci¹, Giorgio Rivella¹, Andrea Baldo¹, Giulia Pozza¹, Maurizio Zizzo⁵, Giovanni Pirozzolo⁶, Giovanni Bordignon⁶, Roberto Merenda⁶, Licia Laurino⁶, Isabella Mondi⁶, Silvio Guerriero⁷, Giuseppe Portale⁸, Lavinia Ceccarini⁸, Laura Marinelli⁹, Mattia Barbareschi^9,10, Giovanni Bertalot^9,10, Alberto Brolese⁹, Giulia Noaro¹¹, Giulia Becherucci¹², Andrea Porzionato², Francesco Cavallin¹³, Barbara Di Camillo², Gaya Spolverato², Ignazio Castagliuolo², Matteo Fassan^4,2, Marco Scarpa^2
1Chirurgia Generale ³, Azienda Ospedale Universita Padova, Padova, Veneto, Italy; ²University of Padova, Padova, Italy; ³Istituto Oncologico Veneto IRCCS, Padova, Veneto, Italy; ⁴Azienda ULSS ² Marca Trevigiana, Treviso, Italy; ⁵Azienda Unita Sanitaria Locale - IRCCS Tecnologie Avanzate e Modelli Assistenziali in Oncologia di Reggio Emilia, Reggio Emilia, Italy; ⁶Azienda ULSS ³ Serenissima, Venezia, Italy; ⁷ASUR Area Vasta ⁴ Fermo, Fermo, Italy; ⁸Azienda ULSS ⁷ Pedemontana, Santorso, Italy; ⁹Ospedale Santa Chiara di Trento, Trento, Trentino-Alto Adige/South Tyrol, Italy; ¹⁰Universita degli Studi di Trento, Trento, Trentino-Alto Adige/South Tyrol, Italy; ¹¹Azienda ULSS ⁶ Euganea, Padua, Veneto, Italy; ¹²Azienda ULSS n ¹ Dolomiti, Belluno, Veneto, Italy; ¹³Independent Statistician, Solagna, Veneto, Italy

1077. MINIMALLY INVASIVE COLORECTAL RESECTION (MICR) IS ASSOCIATED WITH SIGNIFICANTLY ELEVATED PLASMA LEVELS OF PRO ANGIOGENIC ENDOTHELIN -1 FOR THREE WEEKS AFTER COLORECTAL RESECTION
Hmc Shantha Kumara*¹, Yi-Ru Chen¹, Neil Mitra¹, Elizabeth Nilsson Sjolander¹, Xiaohong Yan², Vesna Cekic¹, Richard L. Whelan^1
1Department of Surgery, Lenox Hill Hospital, Northwell Health, Ney York, NY; ²Department of Pathology and Cell Biology, Columbia University Medical Center, Vanderbilt Clinic, ⁶³⁵ West ¹⁶⁸th Street, Ney York, NY

1078. IMMUNOREACT 12: PER-AND POLY-FLUOROALKYL SUBSTANCES (PFAS9 EXPOSURE IS ASSOCIATED WITH A LESS EFFICIENT ANTIGEN PRESENTATION IN HEALTHY MUCOSA OF RECTAL CANCER PATIENTS.
Luca Facci*¹, Giovanni Pirozzolo³, Melania Scarpa⁴, Sara Rosafio⁴, Astghik Stepanyan¹, Gaia Tussardi¹, Andromachi Kotsafti⁴, Antonio Rosato⁴, Ottavia De Simoni⁴, Francesca Bergamo⁴, Valerio Pellegrini⁵, Ivana Cataldo⁵, Carlotta Ceccon², Anna Pozza⁵, Roberta Salmaso², Cesare Ruffolo¹, Imerio Angriman², Gaya Spolverato², Silvia Negro¹, Chiara Vignotto¹, Giorgio Rivella¹, Quoc R. Bao¹, Andrea Baldo¹, Giulia Pozza¹, Maurizio Zizzo⁶, Giovanni Bordignon³, Roberto Merenda³, Isabella Mondi³, Daunia Verdi³, Silvio Guerriero⁷, Giuseppe Portale⁸, Lavinia Ceccarini⁸, Laura Marinelli⁹, Mattia Barbareschi^10,11, Giovanni Bertalot^10,11, Alberto Brolese⁹, Giulia Noaro¹², Giulia Becherucci¹³, Francesco Cavallin¹⁴, Barbara Di Camillo², Ignazio Castagliuolo², Matteo Fassan⁵, Marco Scarpa^2
1Chirurgia Generale ³, Azienda Ospedale Universita Padova, Padova, Veneto, Italy; ²Universita degli Studi di Padova, Padova, Veneto, Italy; ³Azienda ULSS ³ Serenissima, Venezia, Veneto, Italy; ⁴Istituto Oncologico Veneto IRCCS, Padova, Veneto, Italy; ⁵Azienda ULSS n ² Marca Trevigiana, Treviso, Veneto, Italy; ⁶Arcispedale Santa Maria Nuova IRCCS, Reggio Emilia, Italy; ⁷Azienda Sanitaria Territoriale Fermo, Porto San Giorgio, Italy; ⁸Azienda ULSS ⁷ Pedemontana, Bassano del Grappa, Veneto, Italy; ⁹Ospedale Santa Chiara di Trento, Trento, Trentino-Alto Adige, Italy; ¹⁰Ospedale Santa Chiara di Trento Unita Operativa Anatomia Patologica, Trento, Trentino-Alto Adige, Italy; ¹¹Universita degli Studi di Trento, Trento, Trentino-Alto Adige, Italy; ¹²Azienda ULSS ⁶ Euganea, Padova, Veneto, Italy; ¹³Azienda ULSS n ¹ Dolomiti, Belluno, Veneto, Italy; ¹⁴Independent Statistcian, Solagna, Italy

1079. THE RAPID EXPOSURE OF OXYGEN IN THE COLON DURING COLORECTAL SURGERY PROMOTES BACTERIAL COLLAGENASE PRODUCTION LEADING TO ANASTOMOTIC LEAK IN MICE
Bidisha Barat*, Mohsen Rouhani Ravari, Nicholas R. Suss, Benjamin D. Shogan
The University of Chicago Medicine, Chicago, IL

1080. ST6GAL1 OVEREXPRESSION DECREASES SURVIVAL IN AN ANIMAL MODEL OF RECTAL CANCER
Jeremie M. Lever*^1,2, Regina Irwin², Jacelyn E. Lever^1,2, Sameer Al Diffalha^1,2, Chandler McLeod², Karin M. Hardiman^1,2,3
1UAB Hospital, Birmingham, AL; ²The University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL; ³Birmingham VA Medical Center, Birmingham, AL

1082. REDUCING THE IMPACT OF HISTORICAL REDLINING AND SOCIOECONOMIC STATUS ON RECTAL CANCER OUTCOMES
Moustafa Moussally*, April Martinez, Maysoon GamalEldin, Joseph Trunzo, Champagne Bradley, Keshinro ajaratu, Kristen A. Ban, David Liska, David R. Rosen
Cleveland Clinic, Cleveland, OH

1083. SOCIAL DETERMINANTS IN HEALTH IN COLORECTAL CANCER: A MACHINE LEARNING ANALYSIS USING A BRAZILIAN POPULATION-BASED DATABASE
Felipe Mendes Delpino, Lucas Hernandes Correa, Marcelo P. Teivelis, Marina Martins Siqueira, Gabriely Rangel Pereira, Nelson Wolosker, Sergio Eduardo Alonso Araujo, Francisco Tustumi*
Sociedade Beneficente Israelita Brasileira Albert Einstein, Sao Paulo, São Paulo, Brazil

1084. EVALUATION OF SOCIAL SUPPORT, DISCRIMINATION, AND PERCEIVED HEALTH IN PATIENTS WITH GASTROINTESTINAL TRACT CANCERS
Samuel Butensky*¹, Jihoon Kim², Elizabeth Godfrey¹, David G. Su¹, Daniel Kerekes¹, Nita Ahuja¹, Caroline Johnson², Sajid A. Khan^1
1Yale University School of Medicine, New Haven, CT; ²Yale University Graduate School of Arts and Sciences, New Haven, CT

1085. IMPROVING HPV-RELATED ANAL CANCER SCREENING: UNDERSTANDING PHYSICIAN BARRIERS
Dharma Ayer*, Mona Ardeshna, Shreya Patel, Julia Liporace Hall, Sandra Dibrito
Albany Medical College, Albany, NY

1337. THE INCIDENCE AND MANAGEMENT OF ANASTOMOTIC BLEEDING REQUIRING ENDOSCOPIC OR SURGICAL INTERVENTION IN COLORECTAL SURGERY
Roy Hajjar*, Sidrah Khan, Ian Reynolds, Emilio Sanchez, Lauren Gleason, William Perry, Kellie L. Mathis, Nicholas P. McKenna
Surgery, Mayo Clinic Minnesota, Rochester, MN

Moderator:

Taylor S. Riall, Tucson, AZ

Sp1038
THE PAST, PRESENT AND FUTURE OF ACADEMIC SURGERY
Keith D. Lillemoe
Massachusetts General Hospital, Boston, MA

Charles J. Yeo, MD, FACS
Thomas Jefferson University, Philadelphia, PA

Faculty:

Taylor S. Riall, Tucson, AZ

Moderators:

Andreas M. Kaiser, Duarte, CA Terrah Paul-Olson, Johns Creek, GA Amber Shada, Madison, WI

1168. POSTOPERATIVE ANTIBIOTICS IN PEDIATRIC PERFORATED APPENDICITIS: COMPARATIVE OUTCOMES WITH MONOTHERAPY VS. MULTI-DRUG COVERAGE
Jaclyn R. Dempsey*, Aakash Srikanth, Geetha Radhakrishnan, Ravi Radhakrishnan
Surgery, University of Texas Medical Branch, Galveston, TX

1169. BIOLOGICS AND THEIR IMPACT ON DECREASING PREVALANCE OF SURGICAL INTERVENTION IN INFLAMMATORY BOWEL DISEASE: A RETROSPECTIVE ANALYSIS
Taylor E. Messick-Ngo*¹, Kaitlin Boyer^2,1
1General Surgery, Riverside Community Hospital, Riverside, CA; ²University of Riverside, Riverside, CA

1170. SARCOPENIA IN EARLY-ONSET COLORECTAL CANCER: A NEW AND PROMISING APPROACH
César Barsén Pérez Izquierdo¹, Luz Divina Juez¹, Juan Carlos García Pérez¹, Araceli Ballestero Pérez¹, Juan Ocaña¹, Jose A. Rueda⁴, Lorena Brandáriz², Sergio Hernández-Villafranca⁵, Riccardo Levi^6,3, Alessandra Caracciolo^6,3, Cristiana Bonifacio^6,3, Caterina Foppa^6,3, Javier Die Trill¹, José María Fernández Cebrián¹, Javier Blázquez¹, Antonino Spinelli^6,3, Jose Perea*^2,7
1General And Digestive Surgery Department, Hospital Universitario Ramon y Cajal, Madrid, Spain; ²Vithas Hospitales, Madrid, Madrid, Spain; ³IRCCS Humanitas Research Hospital, Rozzano, Lombardia, Italy; ⁴Hospital Universitario Fundacion Alcorcon, Alcorcón, Community of Madrid, Spain; ⁵Hospital Universitario Fundacion Jimenez Diaz, Madrid, Community of Madrid, Spain; ⁶Department of Biomedical Sciences, Humanitas University, Milan, Italy, Milan, Italy; ⁷Molecular Medicine Unit-Department of Medicine, Institute of Biomedical Research of Salamanca (IBSAL) and Institute of Molecular and Cellular Biology of Cancer (IBMCC), University of Salamanca-SACYL-CSIC, Salamanca, Spain, Salamanca, Spain

1171. MODIFYING THE GUT MICROBIOTA WITH PREBIOTICS STRENGTHENS THE GUT BARRIER AND PREVENTS THE DISSEMINATION AND GROWTH OF COLORECTAL CANCER CELLS
Roy Hajjar*^1,2, Ayodeji S. Ajayi^1,2, Manon Oliero^1,2, Gabriela Fragoso¹, Annie Calve¹, Thibault Cuisiniere^1,2, Claire McCartney^1,2, Ahmed Amine Alaoui^1,2, Nassima Taleb¹, Claire Gerkins^1,2, Carole Richard^2,1, Manuela M Santos^2,1
1Centre de Recherche du Centre Hospitalier de l'Universite de Montreal, Montreal, QC, Canada; ²Universite de Montreal, Montreal, QC, Canada

1172. LONG-TERM OUTCOMES OF HYBRID ENDOSCOPIC SUBMUCOSAL DISSECTION IN A TERTIARY CARE CENTER
Salih N. Karahan*, Mustafa Oruc, Kamil Erozkan, Joshua Sommovilla, Scott Steele, Emre Gorgun
Colorectal Surgery, Cleveland Clinic, Cleveland, OH

1173. ENHANCED VISUALIZATION OF COLONIC POLYPS USING FLUOROPHORE-CONJUGATED CLAUDIN-1 ANTIBODIES IN THE CPC-APC MOUSE MODEL
Shanglei Liu*¹, Kristin Cox¹, Siamak Amirfakhri¹, Sunidhi Jaiswal², Sumbal Talib², Mark Primeaux², Satish K. Singh³, Joseph R. Pisegna³, Aaron Mohs², Surinder Batra², Robert Hoffman¹, Punita Dhawan², Michael Bouvet^1
1Surgery, UC San Diego Health, San Diego, CA; ²University of Nebraska Medical Center, Omaha, NE; ³Veterans Health Administration Operations, Washington,

Moderators:

Stephanie Worrell, Tucson, AZ Michele Valmasoni, Padova, Italy Daniela Molena, New York, NY

Sp1154
IMPACT OF SOCIOECONOMIC STATUS ON DIAGNOSIS, PROGRESSION AND MANAGEMENT OF ESOPHAGEAL CANCER
Stephanie G. Wood
Surgery, Oregon Health & Science University, Portland, OR

Sp1155
A TARGETED APPROACH TO PERIOPERATIVE TREATMENT FOR ESOPHAGEAL AND GEJ
Stephanie Worrell
College of Medicine - Tucson, Tucson, AZ

Sp1156
NEW LANDSCAPE OF NEOADJUVANT THERAPY FOR ESOPHAGEAL CANCER
Peter P. Grimminger
Johannes Gutenberg University of Mainz, Mainz, Germany

Sp1157
ROBOTIC GASTRECTOMY AND ESOPHAGECTOMY: HOW DO WE SELECT PATIENTS?
Santiago Horgan
University of California San Diego, La Jolla, CA

Sp1158
ENDOSCOPIC THERAPY FOR EARLY CANCER: SHOULD ADENO AND SQUAMOUS BE TREATED THE SAME?
Nicholas J. Shaheen
University of North Carolina, Chapel Hill, NC

Sp1159
OLIGOMETASTATIC ESOPHAGEAL AND EGJ ADENOCARCINOMA: IS THERE A ROLE FOR SURGERY?
Daniela Molena
Memorial Sloan Kettering Cancer Center, New York, NY

Moderators:

Monica Dua, Stanford, CA Mariano Gimenez, Buenos Aires, Argentina Kim Washington, Fort Worth, TX

Sp1148, Sp1149
FLUORESCENCE GUIDED MIS LIVER RESECTION
Sp1150, Sp1151
MINIMALLY INVASIVE PANCREAS SPARING RESECTIONS (NON WHIPPLE) FOR BENIGN DISEASE IN HEAD OF PANCREAS VERSUS WHIPPLE
Sp1152, Sp1153
LAP TRANSGASTIC NECROSECTOMY VERSUS ENDOSCOPIC NECROSECROMY

HB Tract Moderators:	Jordan Cloyd, Columbus, OH Yifan Wang, Houston, TX
Stomach Moderators:	Safraz Hamid, New Haven, CT Collin Brathwaite, Minneola, NY

Authors available at their posters to answer questions 12:30 pm - 1:30 pm; posters on display 9:30 AM - 4 PM.

Moderators:

Talar Tatarian, Philadelphia, PA Stephanie Wood, Portland, OR Collin Brathwaite, Minneola, NY

1264. INTERPRETATION OF GASTRIC EMPTYING SCINTIGRAPHY FOR GASTROPARESIS: AN ASSESSMENT OF THE DELAYED EMPTYING AT 1, 2 OR 4 HOURS AND THEIR ASSOCIATION WITH PYLORIC DRAINAGE SURGERY OUTCOMES
Sven Eriksson*^1,3, Inanc Sarici^1,3, Marie-Lise Chrysostome¹, Mara Fryer¹, Ping Zheng¹, Shahin Ayazi^1,2,3
1Foregut Division, Surgical Institute, Allegheny Health Network, Pittsburgh, PA; ²Department of Surgery, Drexel University, Pittsburgh, PA; ³Chevalier Jackson Research Fellowship, Esophageal Institute, Western Pennsylvania Hospital, Allegheny Health Network, Pittsburgh, P

1265. REDO RATES AND OUTCOMES OF GASTRIC PERORAL ENDOSCOPIC MYOTOMY (G-POEM) VS PYLOROPLASTY: A RETROSPECTIVE ANALYSIS
Chamanthi Konidala, Cameron Dabbs, Ryan Shargo, Isaac Poonen-Honig, Bailey Blankenship, Salvatore Docimo, Christopher DuCoin, Rebecca Klam, Camille Thélin, Joseph Sujka*
GI Surgery, University of South Florida, Tampa, FL

1266. LUMEN-APPOSING METAL STENTS ARE EFFECTIVE AT MANAGING ANASTOMOTIC STRICTURES AFTER ENDOSCOPIC BARIATRIC REVISION THERAPIES
Kimberly F. Schuster*², Jonathan Melendez¹, Christopher C. Thompson^1
1Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA; ²Tufts University School of Medicine, Boston, MA

1267. IMPACT OF ENDOSCOPIC BARIATRIC AND METABOLIC THERAPY ON REPRODUCTIVE OUTCOMES IN WOMEN WITH OBESITY: A 8-YEAR RETROSPECTIVE ANALYSIS
Kimberly F. Schuster*^1,2, Alexandra Goad³, Cem Simsek⁴, Christopher C. Thompson^1
1Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA; ²Tufts Medical Center, Boston, MA; ³University of Louisville Hospital, Louisville, KY; ⁴Hacettepe Universitesi, Ankara, Ankara, Turkey

1268. EFFICACY OF ENDOSCOPIC ULTRASOUND-GUIDED GASTROJEJUNOSTOMY VERSUS SURGICAL GASTROJEJUNOSTOMY IN PATIENTS WITH ADVANCED MALIGNANT GASTRIC OUTLET OBSTRUCTION
Kanin Sadudeemeechai*^1,2, Pradermchai Kongkam^1,3, Thanawat Luangsukrerk⁴, Suthira Taychakhoonavudh⁵, Nopphol Witvorapong⁶, Setthabutr Eaupanitcharoen⁷, Phatchara Horharin⁷, Phonthep Angsuwatcharakon⁸, Wiriyaporn Ridtitid^1,3, Rungsun Rerknimitr^1,3
1Division of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, The Thai Red Cross Society, Bangkok, Bangkok, Thailand; ²Department of Surgery, Maharat Nakhon Ratchasima Hospital, NakhonRatchasima, NakhonRatchasima, Thailand; ³Excellence Center for Gastrointestinal Endoscopy, King Chulalongkorn Memorial Hospital, Bangkok, Bangkok, Thailand; ⁴Excellence Center for Gastrointestinal Endoscopy, King Chulalongkorn Memorial Hospital, Bangkok, Bangkok, Thailand; ⁵Social and Administrative Pharmacy Department, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Bangkok, Thailand; ⁶Center of Excellence for Health Economics, Faculty of Economics, Chulalongkorn University, Bangkok, Bangkok, Thailand; ⁷Department of Surgery, Maharat Nakhon Ratchasima Hospital, NakhonRatchasima, NakhonRatchasima, Thailand; ⁸Excellence Center for Gastrointestinal Endoscopy, King Chulalongkorn Memorial Hospital, Bangkok, Bangkok, Thailand

1269. NOVEL MINIMALLY INVASIVE GASTRIC PER ORAL ENDOSCOPIC MYOTOMY FOR MANAGEMENT OF GASTROPARESIS: A SYSTEMATIC REVIEW AND META-ANALYSIS
Shradha Chervittara Karaveetil¹, Anmol Rao¹, Ananya Prasad¹, Vinay Chandramouli Bellur*¹, Aashray N. Alva¹, Deepika Reddy Aluru², Ankita Raj², Disha Prashanth¹, Adithya Sathya narayana¹, Shree Charan¹, Pavan Kumara Kasam Shiva², Advaith N. Rao¹, Sravani Bhavanam^3
1MS Ramaiah Medical College, Bangalore, Karnataka, India; ²Bangalore Medical College and Research Institute, Bangalore, KA, India; ³Brookdale University Hospital Medical Center, New York, NY

1270. TRANSORAL OUTLET REDUCTION FOR DUMPING SYNDROME AFTER ROUX-EN-Y GASTRIC BYPASS: A SYSTEMATIC REVIEW AND META-ANALYSIS
Azizullah Beran*¹, Khaled Alsabbagh Alchirazi², Daryl Ramai³, Abubaker Abdalla⁴, Eugene Nwankwo⁵, Mark A. Gromski^1
1Gastroenterology and Hepatology, Indiana University, Bloomington, IN; ²Aurora Health Care, Milwaukee, WI; ³Brigham and Women's Hospital, Boston, MA; ⁴University of Minnesota Twin Cities, Minneapolis, MN; ⁵Mayo Clinic Minnesota, Rochester, MN

1271. THE RACIAL, SEX AND SOCIOECONOMIC DIVIDE: AN ASSESSMENT OF THE IMPACT OF DISPARITIES ON OUTCOMES AFTER SURGICAL INTERVENTION FOR MEDICALLY REFRACTORY GASTROPARESIS
Emma Venard*¹, Sven Eriksson^1,3, Inanc Sarici^1,3, Himsikhar Khataniar⁴, Margaret Gardner¹, Ping Zheng¹, Shahin Ayazi^1,2,3
1Foregut Division, Surgical Institute, Allegheny Health Network, Pittsburgh, PA; ²Department of Surgery, Drexel University, Pittsburgh, PA; ³Chevalier Jackson Research Fellowship, Esophageal Institute, Western Pennsylvania Hospital, Allegheny Health Network, Pittsburgh, PA; ⁴Department of Medicine, Allegheny Health Network, Pittsburgh, PA

1272. IMPACT OF ENDOSCOPIC GASTRIC REMODELING ON GLYCEMIC CONTROL IN PATIENTS WITH DIABETES AND PRE-DIABETES
Ravi Teja Pasam*^1,2, Pichamol Jirapinyo¹, Christopher C. Thompson^1
1Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA; ²Wentworth-Douglass Hospital, Dover, NH

1273. INFECTION RATE IN PATIENTS AFTER ENTERRA DEVICE PLACEMENT WITH CONCURRENT PYLOROPLASTY
Tejasvi Paturu*, Katherine Englander, Samer Ganam, Vic Velanovich, Joseph Sujka
GI Surgery, University of South Florida, Tampa, FL

1274. DETECTION OF AUTONOMIC NERVOUS SYSTEM CHANGES DURING DUODENAL GLUCOSE INFUSION IN HUMANS: A PILOT STUDY
Florina Corpodean*, Michael Kachmar, Adam Lowe, Vance L. Albaugh
Louisiana State University Pennington Biomedical Research Center, Baton Rouge, LA

1275. MANAGEMENT OF GASTROGASTRIC FISTULA AS A SEQUELA OF MARGINAL ULCER: SURGICAL STRATEGIES AND OUTCOMES
Agustina A. Pontecorvo*, Tamar Tsenteradze, Enrique F. Elli
Mayo Clinic Florida, Jacksonville, FL

1276. CO-MORBID GASTROPARESIS IS ASSOCIATED WITH HIGHER LIKELIHOOD OF READMISSION AND REOPERATION AFTER METABOLIC AND BARIATRIC SURGERY
Safraz Hamid*, Elena Graetz, Eric B. Schneider, Saber Ghiassi, Karen E. Gibbs
Yale University School of Medicine, New Haven, CT

1277. ROBOTIC ENDOLUMINAL SLEEVE GASTROPLASTY (R-ESG): TECHNICAL FEASIBILITY OF A NOVEL PROCEDURE IN AN EX-VIVO PORCINE STOMACH
Nicha Srisuworanan*², Pichamol Jirapinyo¹, Christopher C. Thompson^1
1Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA; ²Mahidol University Faculty of Medicine Siriraj Hospital, Bangkok, Bangkok, Thailand

Moderators:

Tim E. Newhook, Houston, TX Sandra Dibrito, Houston, TX Bradford Kim, Pasadena, CA

1249. THE MANAGEMENT OF GALLBLADDER CANCER ACCORDING TO CONTEMPORARY SURGICAL ONCOLOGY PRINCIPLES WARRANTS SURVIVAL BENEFIT
Marcello Di Martino*¹, Benedetto Ielpo², Felice Giuliante³, John Martinie⁴, Guido Torzilli¹³, Luca Aldrighetti¹⁴, Francesco Izzo⁵, Michele Mazzola⁶, Oscar Guevara⁷, Hj Tan⁸, Iswanto Sucandy¹⁵, Francesco Lancellotti⁹, Aldo Rocca¹⁰, Pier Cristoforo Giulianotti¹¹, Luca Morelli¹², Matteo Donadon^1
1Universita degli Studi del Piemonte Orientale Amedeo Avogadro Scuola di Medicina, Novara, Piemonte, Italy; ²Hospital del Mar, Barcelona, Catalunya, Spain; ³Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Roma, Lazio, Italy; ⁴Carolinas Medical Center PinevilleCarolinas HealthCare System Pineville, Charlotte, NC; ⁵Istituto Nazionale Tumori IRCCS Fondazione Pascale, Napoli, Campania, Italy; ⁶ASST Grande Ospedale Metropolitano Niguarda De Gasperis Cardio Center, Milan, Lombardy, Italy; ⁷Instituto Nacional De Cancerología, Bogotá, Colombia, Bogotà, Colombia; ⁸Singapore General Hospital, Singapore, Singapore; ⁹Manchester Metropolitan University, Manchester, Manchester, United Kingdom; ¹⁰Pineta Grande Srl, Castel Volturno, Campania, Italy; ¹¹University of Illinois Chicago, Chicago, IL; ¹²Universita degli Studi di Pisa, Pisa, Toscana, Italy; ¹³Humanitas Mirasole Spa, Rozzano, Lombardia, Italy; ¹⁴IRCCS Ospedale San Raffaele, Milano, Italy; ¹⁵Tampa General Hospital, Tampa, FL

1250. PREDICTION OF NODAL STATUS ON PREOPERATIVE MRI FOR PATIENTS WITH INTRAHEPATIC CHOLANGIOCARCINOMA: AN APPARENT DIFFUSION COEFFICIENT-BASED MACHINE LEARNING MODEL
Flavio Milana*, Fabio Procopio, Giuseppe Ferrillo, Angela Ammirabile, Simone Famularo, Michele Fiordaliso, Eleonora Calafiore, Michela A. Polidoro, Jacopo Galvanin, Guido Costa, marco francone, Cristiana Bonifacio, Guido Torzilli
Surgery, IRCCS Humanitas Research Hospital, Rozzano, Lombardia, Italy

1251. WEIGHT MATTERS: LONG-TERM EVALUATION OF WEIGHT REGAIN AND FISTULA RECURRENCE POST ENDOSCOPIC ULTRASOUND-DIRECTED TRANSGASTRIC ERCP
Yervant Ichkhanian*, Adel Hajj Ali, Jeffrey J. Easler, Itegbemie Obaitan, James L. Watkins, Evan L. Fogel, Nasir Saleem, John M. Dewitt, Mohammad A. Al-Haddad, Mark A. Gromski, Sujani Yadlapati
Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, IN

1252. INTERNATIONAL MULTI-INSTITUTIONAL PROPENSITY SCORE-MATCHED COMPARISON OF ROBOTIC VERSUS OPEN REPAIR FOR IATROGENIC BILE DUCT INJURY
Hasan Al Harakeh*, Fabrizio Di Benedetto, Roberta Odorizzi, Christiano Guidetti, Sharona B. Ross, Garnet Vanterpool, Kristina Milivojev Covilo, Ismael Dominguez Rosado, Iswanto Sucandy
Digestive Health Institute, Advent Health Tampa, Tampa, FL

1253. ANALYSIS ON CLINICOPATHOLOGICAL CHARACTERISTICS AND PROGNOSTIC FACTORS OF GALLBLADDER CARCINOMA FROM ADENOMA
Rui-Qi Zou*, Yu-Shi Dai, Fei Liu, FuYu Li
West China Hospital of Sichuan University, Chengdu, Sichuan, China

1254. LAPAROSCOPIC CHOLECYSTECTOMY IS SAFE IN THE SETTING OF HEREDITARY COAGULATION DISORDERS: A PROPENSITY MATCHED ANALYSIS OF THE NATIONWIDE READMISSIONS DATABASE
Sean H. Nguyen*, John Martone, Colin Tang-Whitmore, Pravin D. Meshram, Cheyenna M. Espinoza, Mark T. Reding, Todd Costantini, James V. Harmon
University of Minnesota Medical School, Minneapolis, MN

1255. PANCREATICODUODENECTOMY WITH HILAR BILE DUCT RESECTION FOR WIDESPREAD DISTAL CHOLANGIOCARCINOMA
Ryosuke Umino*, Minoru Esaki, Takahiro Mizui, Akinori Miyata, Satoshi Nara
National Cancer Center Hospital, Tokyo, Japan

1256. THE TIMING DILEMMA: EARLY VS. INTERVAL CHOLECYSTECTOMY IN PATIENTS WITH MODERATELY-SEVERE BILIARY ACUTE PANCREATITIS
Donghyun Ko*², Do Han Kim³, Pedro J. Palacios⁴, Wilhelm S. Basegoda⁵, Jose A. Porres⁶, Klaus E. Monkemuller⁷, Paul T. Kröner^1
1Gastroenterology / Interventional Endoscopy, Riverside Health System, Newport News, VA; ²Bridgeport Hospital, Bridgeport, CT; ³Mount Sinai Health System, New York, NY; ⁴Jefferson Health, Wayne, PA; ⁵University of South Alabama, Mobile, AL; ⁶Universidad Francisco Marroquin, Guatemala City, Guatemala, Guatemala; ⁷Virginia Polytechnic Institute and State University, Blacksburg, VA

1257. TYPE II GALL BLADDER PERFORATION: A MANAGEMENT CONUNDRUM OR A SURGICAL INDECISION?!
Marco M. Youssef*, Mina N. Aziz, Ashraf Rasheed
General and Gastrointestinal Surgery, The Grange University Hospital, Cwmbran, Wales, United Kingdom

1258. INDICATIONS AND OUTCOMES OF BILE DUCT RECONSTRUCTION OVER TIME IN THE NSQIP DATABASE
Veer S. Sawhney*^1,2, Sing Chau Ng^1,2, Anays Murillo^1,2, Kelly Kenzik^1,2, Teviah Sachs^1,2, Jennifer F. Tseng^2
1Surgery, Boston Medical Center, Boston, MA; ²Boston University Chobanian & Avedisian School of Medicine, Boston, MA

1259. COMPARING THE MANAGEMENT AND OUTCOMES OF PATIENTS WITH ACUTE CALCULOUS CHOLECYSTITIS ADMITTED TO SURGICAL VERSUS MEDICAL WARDS
Yodsakorn Anukulkarnkusol*¹, Wiriyaporn Ridtitid^2,3, Natsida Rathanaviriyachai^2,3, Phonthep Angsuwatcharakon^3,4, Parit Mekaroonkamol^2,3, Pradermchai Kongkam^2,3, Rungsun Rerknimitr^2,3
1Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand; ²Division of Gastroenterology, Department of medicine, Faculty of medicine, Chulalongkorn University, Bangkok, Thailand; ³Excellence Center for Gastrointestinal Endoscopy, King Chulalongkorn Memorial Hospital, Bangkok, Thailand; ⁴Division of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand

1260. ENHANCING SAFETY IN LAPAROSCOPIC CHOLECYSTECTOMY: INSIGHTS FROM A PROSPECTIVE STUDY ON CRITICAL VIEW OF SAFETY AND CASE FOR EARLY ADOPTION
Lovenish Bains*, Aman Agarwal, Pawan Lal, Uday Kumar
Surgery, Maulana Azad Medical College, New Delhi, Delhi, India

1261. CHARACTERSITICS OF NON-OBSTRUCTIVE RECURRENT CHOLANGITIS IN PATIENTS WITH SURGICALLY ALTERED ANATOMY: A RETROSPECTIVE COHORT STUDY
Rahul Karna*, Gaurav Suryawanshi, Suchapa Arayakarnkul, Gregory Beilman, David Martin, Karthik Ramanathan, Martin L. Freeman, Melena Bellin, Guru Trikudanathan
Gastroenterology, University of Minnesota Medical School, Minneapolis, MN

1262. LONG TERM OUTCOMES AND QUALITY OF LIFE AFTER REAPIR OF BENIGN BILIARY STRICTURE OF POST CHOLECYSTECTOMY BILE DUCT INJURY
Jyoti Kharel, Thakur D. Yadav, Rajesh Gupta, Harjeet Singh*
Post Graduate Institute of Medical Education and Research, Chandigarh, India

1263. EVALUATING THE PRACTICE OF CHOLECYCSTECTOMY DURING CYTOREDUCTIVE SURGERY WITH HIPEC
Moustafa Moussally*, Oscar Hernandez Dominguez, Scott Steele, David Liska, Emre Gorgun, Daniel Joyce, Michael Valente
Cleveland Clinic, Cleveland, OH

Moderators:

Lee Ocuin, Allentown, PA Flavio Rocha, Portland, OR Trang Nguyen, Indianapolis, IN

Sp1214, Sp1215
HIGH RISK RESECTABLE INTRAHEPATIC CHOLANGIOCARCINOMA - OPTIONS AND RATIONALE FOR NEOADJUVANT THERAPY
Sp1212, Sp1213
NEOADJUVANT TREATMENT FOR RESECTABLE PANCREATIC ADENOCARCINOMA DEBATE
Sp1216, Sp1217
SYNCHRONOUS METASTATIC RECTAL CANCER TO THE LIVER

Moderators:

Motaz Qadan, Boston, MA Konstantinos Spaniolas, Stony Brook, NY

Sp1167
ENDOSCOPIC APPROACHES TO ACCESS THE BILARY TREE
Kumar Krishnan
Massachusetts General Hospital, Boston, MA

Sp1168
MIS APPROACHES TO BENIGN BILIARY OBSTRUCTION
Margaux Mustian
University of Alabama at Birmingham, Birmingham, AL

Sp1169
COMPLEX CASE PRESENTATION AND GROUP DISCUSSION
Onur Kutlu
University of Miami, Miami, FL

Moderators:

Alicia Gingrich, Reno, NV Steffen Deichmann, Lübeck, Germany Talar Tatarian, Philadelphia, PA

1362. VALIDATION OF A NOVEL ENDOSCOPIC ROBOTIC SIMULATOR
Ravi Teja Pasam*^1,2, Trent Walradt¹, Vishal Chandel^1,2, Daniel Szvarca¹, Leander Heisterberg^4,1, Dongsuk Shin^3,1, Pichamol Jirapinyo¹, Christopher C. Thompson^1
1Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA; ²Wentworth-Douglass Hospital, Dover, NH; ³EndoQuest Robotics Inc, Houston, TX; ⁴ERBE Elektromedizin GmbH, Tübingen, BW, Germany

1363. DEVELOPMENT AND VALIDATION OF A STRUCTURED HANDS-ON SURGICAL SKILLS TRAINING MODULE FOR OPEN DUCT-TO-MUCOSA PANCREATICO-JEJUNOSTOMY USING ANIMAL TISSUES
Rajesh Panwar*, Siva Prasanna K, Sujoy Pal, Rashmi Ramachandran, Vuthaluru Seenu
All India Institute of Medical Sciences New Delhi, New Delhi, Delhi, India

1364. VALIDATION OF A STRUCTURED HANDS-ON SURGICAL SKILLS TRAINING MODULE FOR HEPATICOJEJUNOSTOMY
Rajesh Panwar, Sujoy Pal*, Hemanga K. Bhattacharjee, Ambuj Roy, Vuthaluru Seenu, Peush Sahni
Gastrointestinal Surgery & Liver Transplantation, All India Institute of Medical Sciences, New Delhi, Delhi, India

1365. FIRST 48: ASSOCIATION OF EXCESS PERIOPERATIVE INTRAVENOUS FLUIDS AND OPIOID ADMINISTRATION ON COMPLICATIONS AFTER PANCREATECTOMY
Brittany C. Fields*, Adriana C. Gamboa, Jessica E. Maxwell, Zhouxuan Li, Laura R. Prakash, Morgan L. Bruno, Elsa M. Arvide, Whitney L. Dewhurst, Naruhiko Ikoma, Rebecca A. Snyder, Michael P. Kim, Jose Soliz, Matthew Katz, Ching-Wei D. Tzeng
The University of Texas MD Anderson Cancer Center, Houston, TX

1366. OPTIMIZING POST-HEPATECTOMY CARE PATHWAYS: INDEX HOSPITALIZATION FACTORS ASSOCIATED WITH 90-DAY READMISSIONS
Anneliese N. Hierl*, Elsa M. Arvide, Esther N. Dekker, Brittany C. Fields, Laura R. Prakash, Yun Shin Chun, Hop S. Tran Cao, Timothy E. Newhook, Jean-Nicolas Vauthey, Ching-Wei D. Tzeng
The University of Texas MD Anderson Cancer Center, Houston, TX

1367. FACTORS ASSOCIATED WITH EARLY VS. DELAYED PCA DISCONTINUATION AFTER PANCREATECTOMY
Yifan Wang*, Brittany C. Fields, Anneliese N. Hierl, Zhouxuan Li, Laura R. Prakash, Morgan L. Bruno, Elsa M. Arvide, Whitney L. Dewhurst, Jessica E. Maxwell, Naruhiko Ikoma, Rebecca A. Snyder, Michael P. Kim, Matthew Katz, Ching-Wei D. Tzeng
Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX

1368. ASSOCIATION OF HOSPITAL QUALITY AND SOCIAL DETERMINANTS OF HEALTH WITH SHORT-TERM SURGICAL OUTCOMES AMONG MEDICARE BENEFICIARY PATIENTS UNDERGOING ELECTIVE CANCER SURGERY
Abolfazl Salari*, Mengyuan Ruan, Terhas Weldelase, Jiping Wang, Joel S. Weissman, George Molina
Brigham and Women's Hospital, Boston, MA

1369. BRIDGING THE GAP: IMPROVING PATIENT-PROVIDER COMMUNICATION IN FOREGUT CANCER
Ioannis Liapis*¹, Jaspinder S. Sanghera¹, Michelle Holland¹, Alfonsus Adrian H. Harsono¹, Katie West², Krista Mehari³, Smita Bhatia¹, Martin Heslin¹, Annabelle L. Fonseca^1
1Surgical Oncology, The University of Alabama at Birmingham, Birmingham, AL; ²University of South Alabama, Mobile, AL; ³Vanderbilt University, Nashville, TN

1370. DID THE AFFORDABLE CARE ACT'S MEDICAID EXPANSION HAVE A SUSTAINABLE IMPACT ON ACCESS TO COLORECTAL CANCER SURGERY IN THE MIDWEST?
Jillian Timperley*¹, Mark Pedersen¹, Danielle B. Dilsaver¹, Alexander Hall¹, Awinder Singh¹, Scott R. Reetz¹, James Hazen¹, Jennifer F. Tseng², Ryan W. Walters¹, Waddah Al-Refaie^1
1Creighton University School of Medicine, Omaha, NE; ²Boston University, Boston, MA

1371. RISK FACTORS FOR WITHDRAWAL OF CARE AFTER ELECTIVE SURGERY FOR GASTROINTESTINAL CANCERS: A NATIONAL ANALYSIS
Rebecca Tang*, Sarah Rudasill, Christy Cauley, Grace Lee, Hiroko Kunitake, Rocco Ricciardi
Massachusetts General Hospital Department of Surgery, Boston, MA

1372. TOWARD OPIOID-FREE AMBULATORY SURGERY: ARE REGIONAL NERVE BLOCKS ASSOCIATED WITH IMPROVED PAIN CONTROL AND DECREASED OPIOID CONSUMPTION WHEN USED WITH A MULTIMODAL POSTOPERATIVE ANALGESIC REGIMEN IN GENERAL SURGERY?
Stefanie C. Rohde*, Divyaam Satija, Savannah Renshaw, William T. Head, Dylan S. Goto, Sidhant Kalsotra, Peter Edwards, Kiana Shannon, Benjamin Poulose
Surgery, The Ohio State University Wexner Medical Center, Columbus, OH

1373. PATIENT ACTIVATION PHENOTYPES AMONG PATIENTS UNDERGOING SURGERY IN RURAL ALABAMA
Alizeh Abbas*¹, Lauren Wood¹, Wendelyn Oslock^1,2, Robert H. Hollis¹, Alfonsus Adrian H. Harsono¹, Gianina Hernandez Marquez¹, Gregory Kennedy¹, Manu Kaushik¹, Daniel I. Chu^1
1Surgery, The University of Alabama at Birmingham, Birmingham, AL; ²Birmingham Veterans Affairs Medical Center, Birmingham, AL

Moderators:

Catherine Davis, Dallas, TX Tobias Keck, Luebeck, Germany Onur Kutlu, Miami, FL

1347. ACHIEVING OPTIMAL OUTCOMES IN ROBOTIC PANCREATICODUODENECTOMY IN THE MODERN ERA: A CLINICAL VARIABLE ANALYSIS
Hasan Al Harakeh*, Garnet Vanterpool, Iswanto Sucandy, Melanie Mendez, Kristina Milivojev Covilo, Sharona B. Ross
Digestive Health Institute, Advent Health Tampa, Tampa, FL

1348. LOW PARENTERAL AMINO ACID DOSES RATHER THAN LOW PARENTERAL ENERGY WERE ASSOCIATED WITH WORSE CLINICAL OUTCOMES IN PATIENTS UNDERGOING GASTROINTESTINAL CANCER SURGERY: A COHORT STUDY USING REAL-WORLD DATA
Yoshikuni Kawaguchi*¹, Kenta Murotani², Naoki Hayashi³, Satoru Kamoshita^3
1The University of Tokyo, Tokyo, Japan; ²Kurume University, Fukuoka, Japan; ³Otsuka Pharmaceutical Factory, Inc., Tokyo, Japan

1349. ASSOCIATION OF NEIGHBORHOOD LEVEL FACTORS AND RESPONSE TO NEOADJUVANT CHEMOTHERAPY IN PATIENTS WITH PANCREATIC DUCTAL ADENOCARCINOMA
Muhammad Maisam Ali*, Manasa Ventkatesh, Clayton T. Marcinak, Syed Nabeel Zafar
University of Wisconsin School of Medicine and Public Health, Madison, WI

1350. SURVIVAL IN PANCREATIC EWING'S SARCOMA FAMILY OF TUMORS IMPROVED WITH IFOSFAMIDE AND ETOPOSIDE REGIMENS: A SYSTEMATIC REVIEW AND SURVIVAL ANALYSIS
Kaiser O. Sadiq*¹, RIshab Belavadi², Swetha Lakshminarayanan¹, Patricia Ruiz Cota^1
1UC San Diego Health, San Diego, CA; ²Mayo Clinic Arizona, Scottsdale, AZ

1351. PANCREATICODUODENECTOMY FOR PANCREATIC CANCER AT SPECIALIZED VERSUS COMMUNITY-BASED CARE FACILITIES: A VALUE-BASED ASSESSMENT
Muhammad Muntazir Mehdi Khan*, Edward A. Joseph, Brandon Weiss, Philip E. Schumacher, Casey Allen
Surgical Oncology, Allegheny Health Network, Pittsburgh, PA

1352. IMMEDIATE RETURN OF ISLET FUNCTION AND INSULIN INDEPENDENCE AFTER SIMULTANEOUS INTRA AND EXTRAHEPATIC TRANSPLANTATION OF UNPURIFIED AUTOLOGOUS ISLETS IN TOTAL PANCREATECTOMY AND ISLET CELL TRANSPLANTATION
Patrick T. Wang*, Onur Kutlu, Xiumin Xu, Jodie A. Barkin, Jose M. Martinez, Camillo Ricordi
University of Miami Miller School of Medicine, Miami, FL

1353. CHEMOTHERAPY DOSE-INTENSITY AND OUTCOMES IN RESECTED PANCREATIC CANCER
Nicholas Galouzis*, Evelyn V. Alexander, Maria K. Fotinos, Olivia Mitchel, Lusine Mesropyan, Carrie Luu, Mohammad R. Khreiss, Taylor S. Riall
Department of Surgery, Banner - University Medical Center Tucson, Tucson, AZ

1354. POST-PANCREATECTOMY ACUTE PANCREATITIS: A FIRST NATIONAL DATABASE PERSPECTIVE
Andrew J. Thyen*, Thomas K. Maatman, Alex M. Roch, Ryan J. Ellis, Eugene Ceppa, Michael G. House, Max Schmidt, Nicholas J. Zyromski
General Surgery, Indiana University School of Medicine, Indianapolis, IN

1355. POSITIVE NET BENEFIT OF MACHINE LEARNING: PREDICTING POSTOPERATIVE PANCREATIC FISTULA AFTER PANCREATICODUODENECTOMY
Rachel L. Wolansky*¹, Tyler Zander¹, Joseph Sujka¹, Richard A. Jacobson¹, Timothy M. Nywening¹, Eric M. Toloza², Paul Kuo^1,3, Melissa A. Kendall^1
1Surgery, USF Health, Tampa, FL; ²Moffitt Cancer Center, Tampa, FL; ³C W Bill Young Department of Veterans Affairs Medical Center, Bay Pines, FL

1356. DECODING THE IMPACT OF NEOADJUVANT THERAPY MODALITY AND DURATION ON PROGNOSTIC FACTORS IN PANCREATIC DUCTAL ADENOCARCINOMA
Emily Papai*¹, Jennifer Hwang¹, Leonard Miller², Joseph Krempa², Hal Rives², Jordan D. Fredette¹, Anthony Villano¹, Sanjay S. Reddy^1
1Surgery, Fox Chase Cancer Center, Philadelphia, PA; ²Temple University Lewis Katz School of Medicine, Philadelphia, PA

1357. IRON-DEFICIENCY ANEMIA DECREASES SURVIVAL IN POST-PANCREATICODUODENECTOMY PANCREATIC DUCTAL ADENOCARCINOMA PATIENTS
Joseph Gorman*², Zachary Kaplan², Matthew Kraft², Elijah Hoffman², Harish Lavu^1,2, Wilbur Bowne^1,2, Charles Yeo^1,2, Avinoam Nevler^1,2
1Department of Surgery, Thomas Jefferson University, Philadelphia, PA; ²Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, PA

1358. INTERSECTION OF RACE AND SOCIOECONOMIC STATUS WITH PATHOLOGIC RESPONSE AFTER NEOADJUVANT THERAPY FOR PDAC
K K. Akinola*, Victor Perim, Chandler McLeod, Herbert Chen, Smita Bhatia, J B. Rose, Andrea Gillis
University of Alabama at Birmingham, Birmingham, AL

1359. OCTOGENARIANS UNDERGOING PANCREATICODUODENECTOMY VERSUS DEFINITIVE RADIOTHERAPY FOR LOCOREGIONAL THERAPY OF PANCREATIC DUCTAL ADENOCARCINOMA
Muhammad Muntazir Mehdi Khan*, Edward A. Joseph, Sricharan Chalikonda, David Bartlett, Casey Allen
Surgical Oncology, Allegheny Health Network, Pittsburgh, PA

1360. POST-PANCREATODUODENECTOMY COMPLICATIONS DELAY AND LIMIT THE RECEIPT OF ADJUVANT CHEMOTHERAPY IN RESECTABLE PANCREATIC CANCER: A CONTEMPORARY, POPULATION-LEVEL ANALYSIS
Dillon C. Cheung*, Yu-Hui Chang, Lena K. Egbert, John A. Jenkins, Richard Bold, Chee-Chee Stucky, Nabil Wasif, Zhi Ven Fong
Surgery, Mayo Clinic Arizona, Scottsdale, AZ

1361. SYNOPSIS OF PANCREATECTOMY OPERATIONS AND THEIR OUTCOMES IN CHILDREN: A NSQIP-PEDIATRIC ANALYSIS
Muhammed Ali Colak*¹, Shruthi Srinivas², Yueran Zhang¹, Lindsey Asti³, A. J. Freeman¹, Sara K. Rasmussen¹, Jaimie D. Nathan^1
1Abdominal Transplant and Hepatopancreatobiliary Surgery, Nationwide Children's Hospital, Columbus, OH; ²The Ohio State University Wexner Medical Center, Columbus, OH; ³Nemours Children's Hospital Delaware, Wilmington, DE

Moderators:

Melanie Morris, Birmingham, AL Kim C. Lu, Portland, OR Nigel D’Souza, Southampton Hampshire, United Kingdom

1332. USE OF HUMAN AMNION/CHORION MEMBRANE (HACM) ALLOGRAFTS IN COLORECTAL SURGERY ARE ASSOCIATED WITH SIGNIFICANT DECREASES IN HOSPITAL READMISSIONS AND ANASTOMOTIC LEAKS
Bidhan Das*², Nezar Jrebi³, Dennis Choat⁴, Matthew Bardin^1
1STC Clinical, LLC, Tampa, FL; ²Southwest Surgical Associates, Houston, TX; ³North Texas Surgical Specialists, Ft. Worth, TX; ⁴Piedmont Physicians Colon and Rectal Surgery of Fayetteville, Fayetteville, GA

1333. REVISED TEXTBOOK OUTCOME FOR COLECTOMY: A NOVEL TARGET FOR ERAS PROGRAMS
Matthew P. Zeller*¹, Rachel Ma³, Joseph Wetherell¹, Andrea P. Solis- Pazmino³, Moshe Barnajian³, Jessica Felton^1,2, Yosef Nasseri³, Joshua H. Wolf^1,2
1Surgery, Sinai Hospital, Baltimore, MD; ²The George Washington University School of Medicine and Health Sciences, Washington, ; ³Cedars-Sinai Medical Center, Los Angeles, CA

1334. THE IMPACT OF SURGICAL ANASTOMOTIC TECHNIQUE ON MORTALITY AND HOSPITAL LENGTH OF STAY: A MULTICENTER RETROSPECTIVE STUDY
Taylor E. Messick-Ngo*, Sara Hajizadeh-Barfjani
General Surgery, Riverside Community Hospital, Riverside, CA

1335. EVIDENCE BEHIND THE USE OF EXTENDED VENOUS THROMBOEMBOLISM PROPHYLAXIS IN COLORECTAL SURGERY: A SYSTEMATIC REVIEW
Lauren Weaver*¹, Lindsay Welton¹, Alexander Troester¹, Julia Kohn¹, Nicholas Klemen², Cyrus Jahansouz¹, Mary Butler¹, Bronwyn Southwell¹, Paolo Goffredo^1
1University of Minnesota Twin Cities, Minneapolis, MN; ²National Institutes of Health, Bethesda, MD

1336. ARE THE SIMPLIFIED VERSIONS OF ENHANCED RECOVERY AFTER SURGERY (ERAS) PROGRAMS RELIABLE?
Maria Luiza V. Olivé, Ana S. Portilho, Rodrigo Moisés d. Leite, Giovana M. Minchillo, Francisco Tustumi*, Lucas S. Gerbasi, Rafael Vaz Pandini, Lucas C. Stolzemburg, Victor Edmond Seid, Sergio Eduardo Alonso Araujo
Sociedade Beneficente Israelita Brasileira Albert Einstein, Sao Paulo, São Paulo, Brazil

1338. ALVIMOPAN ADDITION TO ENHANCED RECOVERY PROGRAM SPEEDS RECOVERY FOLLOWING COLORECTAL SURGERY
Charles A. James*¹, Ray S. King¹, Ana De Roo¹, Dana Hayden¹, Evie H. Carchman^1,2,3, Charlea Heise¹, Cristina Sanger^1,2, Elise H. Lawson¹, Julia R. Berian^1
1Surgery, University of Wisconsin-Madison, Madison, WI; ²VA Medical Center Madison, Madison, WI; ³University of Wisconsin-Madison Carbone Cancer Center, Madison, WI

1339. THE IMPACT OF SURGICAL TOOLS AND TECHNIQUES ON LOW ANTERIOR RESECTION SYNDROME AFTER RECTAL SURGERY
Evan D. Adams*, Sydney Castellanos, Chandler Lowe, Sidhant Kalsotra, Matthew Kalady, Mark Arnold, Alessandra Gasior, syed Husain
Surgery, The Ohio State University, Columbus, OH

1340. ROBOTIC-ASSISTED SINGLE INCISION LAPAROSCOPIC COLORECTAL SURGERY USING A MULTI-PORT ROBOTIC SYSTEM IS SAFE AND FEASIBLE
Kaiser O. Sadiq*, Ashley Alden, Jin Kim, Robert D. Bennett
University of South Florida Morsani College of Medicine, Tampa, FL

1341. ROLE OF INDOCYANINE GREEN IN EVALUATING VASCULARITY OF BOWEL ENDS PRIOR TO ANASTOMOSIS IN COLORECTAL OPERATIONS
Ramesh Ardhanari*, Mohan Narasimhan, Srinivasan Ramachandran, RaviTeja Oleti
GI Surgery and GI Onncology, Meenakshi Mission Hospital and Research Centre, Madurai, Tamil Nadu, India

1342. A VIDEO-BASED COMMUNICATION INTERVENTION FOR FECAL OSTOMY SURGERY (CI-OSURG): RESULTS OF THE OPEN PILOT TESTING
Atziri Rubio-Chavez*^1,2, Sevdenur Cizginer Konuk^3,9, Mary E. Brindle^2,4, Zara Cooper^5,6,8, Ana-Maria Vranceanu⁷, Christine S. Ritchie⁹, Christy Cauley^1,2,9
1Massachusetts General Hospital Department of Surgery, Boston, MA; ²Harvard T H Chan School of Public Health Ariadne Labs, Boston, MA; ³Massachusetts General Hospital, Division of Palliative Care and Geriatric Medicine, Department of Medicine, Boston, MA; ⁴University of Calgary Cumming School of Medicine, Department of Surgery, Calgary, AB, Canada; ⁵Brigham and Women's Hospital Department of Surgery, Boston, MA; ⁶Brigham and Women's Hospital Center for Surgery and Public Health, Boston, MA; ⁷Massachusetts General Hospital Department of Psychiatry, Boston, MA; ⁸Hinda and Arthur Marcus Institute for Aging Research, Boston, MA; ⁹Massachusetts General Hospital Mongan Institute, Boston, MA

1343. COST-EFFECTIVENESS ANALYSIS OF EARLY SURGERY VERSUS PERCUTANEOUS DRAIN PLACEMENT WITH INTERVAL SURGERY FOR COMPLICATED DIVERTICULITIS WITH ABSCESS FORMATION
Gabriela Esnaola*¹, Kurt Schultz³, Miranda Moore², Haddon Pantel³, Eric B. Schneider¹, Ira Leeds^3
1Yale University School of Medicine, New Haven, CT; ²MEDSUR Center for Health Services & Outcome Research, New Haven, CT; ³Yale University Department of Surgery, New Haven, CT

1344. SAFETY AND EFFICACY OF CHEMOPREVENTION FOR FAMILIAL ADENOMATOUS POLYPOSIS: A SYSTEMATIC REVIEW AND META-ANALYSIS
Kaique Flávio Xavier Cardoso Filardi4, Thaís Cabral de Melo Viana2, Eric T. Nakamura2, Amanda Park3, Rodrigo Moisés d. Leite1, Pedro Luiz Serrano Usón Junior1, Francisco Tustumi*1
1Sociedade Beneficente Israelita Brasileira Albert Einstein, Sao Paulo, São Paulo, Brazil; 2Universidade de Sao Paulo, Sao Paulo, Brazil; 3Centro Universitario Lusiada, Santos, São Paulo, Brazil; 4Beth Israel Deaconess Medical Center, Boston, MA

1345. PREDICTORS OF UNDERGOING HARTMAN PROCEDURE AS AN INITIAL INTERVENTION FOR SIGMOID VOLVULUS
Monica Patten*, Aisha Shaikh, Saad Shebrain
General Surgery, Western Michigan University Homer Stryker MD School of Medicine, Kalamazoo, MI

1346. MULTIMORBIDITY BURDEN AND DEVELOPMENTAL TRAJECTORY IN RELATION TO APPENDECTOMY: EVIDENCE FROM A LARGE-SCALE COHORT STUDY
Meng Kang¹, Tian Fu^2,1, Yuexin Zhu³, Tianyi Che⁴, Fangmin Jing¹, Xixian Ruan¹, Sidan Wang¹, Xiaocang Cao⁵, Xiaoyan Wang¹, Jie Chen*^1
1Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China; ²Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, School Of Medicine, Westlake University, Hangzhou, China; ³Beijing Anzhen Hospital, Capital Medical University, Beijing, China; ⁴Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; ⁵Department of Hepato-Gastroenterology, Tianjin Medical University General Hospital, Tianjin Medical University, Tianjin, China

Discussants from the SSAT, AASLD, AGA, and ASGE will review their societies' top presentations; attend this session to get an overview of the latest, best, and most thought-provoking research presented all week. Consult MyDDW for the schedule of expert critiques.

Sp1219
INTRODUCTIONS
Loren Laine
Yale School of Medicine, New Haven, CT

Sp1220
BEST OF SSAT
Lee M. Ocuin
Surgery, Atrium Health, Cleveland, OH

Sp1221
BEST OF AGA
Samir Gupta
University of California San Diego, San Diego, CA

Sp1222
BEST OF AASLD
Monika Sarkar
University of California, San Francisco, San Francisco, CA

Sp1223
BEST OF ASGE
Drew B. Schembre
Digestive Health, John Muir Health, Orinda, CA