Publications, Abstracts - GI Fellows


Cusumano VT, Laiji CL, Jensen DM. Definitive diverticular hemorrhage: Diagnosis and managementThe New Gastroenterologist (AGA). 2 November 2021

LeBrett WL, Iyengar PS, Lee AH, Chen FW, Chang L. High opioid prescribing profiles among gastroenterologists: A nationwide analysisClin Gastroenterol Hepatol. Online 16 October 2021

Najafian NWeber AT, Zuckerman JE, Zhang S, Saab S, Choi G. AL lambda amyloidosis activates acute liver failure in the absence of plasma cell dyscrasiaDigestive Diseases and Sciences. 15 October 2021

Yelenich E, Truong E, Widaman AM, Pignotti G, Yang L, Jeon Y, Weber AT, Shah R, Smith J, Sauk JS, Limketkai BN. Avoidant restrictive food intake disorder prevalent among patients with inflammatory bowel diseaseClin Gastroenterol Hepatol. 2021 Aug 11;S1542-3565(21)00864-8

Weissman S, Ahmed M, Baniqued MR, Ehrlich D, Tabibian JH. Best practices for prevention of post-endoscopic retrograde cholangiopancreatography pancreatitisWorld J Gastrointest Endosc. 2021 Jun 16;13(6):161-169. doi: 10.4253/wjge.v13.i6.161

Lenhart A, Dong TS, Mahurkhar-Joshi S, Shih W, Jaffe N, Choo C, Liu C, Jacobs JP, Lagishetty V, Labus JS, Gupta A, Tillisch K, Mayer EA, Chang L. Effect of exclusion diets on symptom severity and gut microbiota in patients with irritable bowel syndrome (IBS)Clin Gastroenterol Hepatol. 2021; S1542-3565(21)

Kuftinec G, Elmunzer BJ, Amin S, North American Cohort including Lenhart AThe role of endoscopy and findings in COVID-19 patients, an early North American CohortBMC Gastroenterol. 2021;21(1):205

Weissman S, Ahmed M, Baniqued M, Ehrlich D, Tabibian JH. Best practices for prevention of post-endoscopic retrograde cholangiopancreatography pancreatitisWorld J Gastrointest Endosc. Jun 16, 2021; 13(6): 161-169

Weissman S, Sharma S, Aziz M, Ehrlich D, Perumpail M, Sciarra M, Tabibian JH. Impact of Readmission for Variceal Upper Gastrointestinal Bleeding: A Nationwide AnalysisDigestive Diseases and Sciences. Online ahead of print May 2021

Ehrlich D, V. Raman Muthusamy. Device profile of the EXALT Model D single-use duodenoscope for endoscopic retrograde cholangiopancreatography: Overview of its safety and efficacyExpert Review of Medical Devices. 2021


Bangaru S, Benhammou JN, Tabibian JH. Noninvasive scores for the prediction of esophageal varices and risk stratification inpatients with cirrhosisWorld J Hepatol. 2020 Nov 27;12(11):908-918. doi: 10.4254/wjh.v12.i11.908

Grewal J, Condon A, Marya NB, Kim SUlcerative jejunitis in refractory celiac disease diagnosed on capsule endoscopyGastrointestinal endoscopy. Volume 92, issue 2, p430-432, August 1, 2020

Perumpail RE, Muthusamy VR. Gastrointestinal stents: Thinking outside the boxTechniques and Innovations in Gastrointestinal Endoscopy Published:May 12, 2020DOI:

El-Nachef WN, Bronner ME. De novo enteric neurogenesis in post-embryonic zebrafish from Schwann cell precursors rather than resident cell typesDevelopment Published June 2, 2020. DOI: 10.1242/dev.186619

Lenhart A, Bruce Naliboff B, Shih W, Gupta A, Tillisch K, Liu C, Mayer EA, Chang L. Postmenopausal women with irritable bowel syndrome (IBS) have more severe symptoms than premenopausal women with IBSNeurogastroenterology & Motility. May 29, 2020. 

Dong TS, Katzka W, Lagishetty V, Luu K, Hauer M, Pisegna J, Jacobs JP. A microbial signature identifies advanced fibrosis in patients with chronic liver disease mainly due to NAFLDScientific Reports, Volume 10, Article number: 2771

Fejleh MP, Tabibian JH. Colonic management of diverticular diseasesWorld J Gastrointest Endosc. 2020 Feb 16:12(2):53-59. doi 10.4253/wjge.v12.i2.53

Chen FW, LeBrett WG, Yang L, Chang L. Opioid prescription patterns among US fastroenterologists from 2013 to 2017Gastroenterology. 2020 Feb;158(3):776-779.e2. doi: 10.1053/j.gastro.2019.10.017. Epub 2019 Oct 21

Weber A, Sauk J, Limketkai B. P130 leading causes of mortality in inflammatory bowel disease: A nationwide analysisInflammatory Bowel Diseases, Volume 26, Issue Supplement_1, January 2020, Page S26,


Yamaguchi N, Weinberg EM, Nguyen A, Liberti MV, Goodarzi H, Janjigian YY, Paty PB, Saltz LB, Kingham TP, Loo JM, de Stanchina E, Tavazoie SF. PCK1 and DHODH drive colorectal cancer liver metastatic colonization and hypoxic growth by promoting nucleotide synthesisElife. 2019 Dec 16;8. pii: e52135. doi: 10.7554/ eLife.52135

Perumpail R, Marya NB, Betty L. McGinty BL, Muthusamy VR. Endoscope reprocessing: Comparison of drying effectiveness and microbial levels with an automated drying and storage cabinet with forced filtered air and a standard storage cabinetAmerican Journal of Infection Control, September 2019, Volume 47, Issue 9, Pages 1083-1089, DOI:

Kalani APhan J, Taefi A. Deshmukh M, Yamamoto A, Tabibian JH. Necrotizing pancreatitis: Common and uncommon sequelae and solutionsDig Dis Sci. 2019 Oct;64(10):3020-3023. doi: 10.1007/s10620-019-05634-2. Epub 2019 Apr 27

Grewal J, Doan A, Hong AS, Amin A, Scapa JV, Hanna R, Durazao F, Yanny B. Drug-induced autoimmune hepatitis from hydralazinel leading to acute liver failure and liver transplantationACG Case Reports Journal. October 2019 - Volume 6 - Issue 10 - p e00252 doi: 10.14309/crj.0000000000000252

Dong TS, Chang HH, Hauer M, Lagishetty V, Katzka, Rozengurt E, Jacobs JP, Eibl G. Metformin alters the duodenal microbiome and decreases the incidence of pancreatic ductal adenocarcinoma rromoted by diet-induced obesityAm J Physiol Gastrointest Liver Physiol. 2019 Sep 23. doi: 10.1152/ajpgi.00170.2019. [Epub ahead of print]

Hakimian JK, Dong TS, Barahona JA, Lagishetty V, Tiwari S, Azani D, Barrera M, Lee S, Severino AL, Mittal N, Cahill CM, Jacobs JP, Walwyn WM. Dietary supplementation with Omega-3 polyunsaturated fatty acids reduces opioid-seeking behaviors and alters the gut microbiomeNutrients. 2019 Aug 14;11(8). pii: E1900. [PMID: 31416242]

Malik A, Kardashian AA, Zakharia K, Bowlus CL, Tabibian JH. Preventative care in cholestatic liver disease: Pearls for the specialist and subspecialistLiver Res. 2019 Jun;3(2):118-127. doi: 10.1016/j.livres.2019.04.001. Epub 2019 May 27.

Marya NB, Tabibian JH. Role of endoscopy in the management of primary sclerosing cholangitisWorld J Gastrointest Endosc. 2019 Feb 16;11(2):84-94. doi: 10.4253/wjge.v11.i2.84. Review. PMID: 30788027

Dong TKalani A, Aby E, Le L, Luu K, Hauer M, Kamath R, Lindor K, Tabibian J. Machine learning-based development and validation of a scoring system for screening high-risk esophageal varicesClin Gastroenterol Hepatol. 2019 Jan 29. pii: S1542-3565(19)30072-2. doi: 10.1016/j.cgh.2019.01.025. [Epub ahead of print]  PMID: 30708109

May FP, Yano EM, Provenzale D, Brunner J, Yu CPhan J, Bharath P, Aby E, Dinh D, Ehrlich DS, Storage TRLin LDJamaluddin NN, Washington DL. Barriers to follow-up colonoscopies for patients with positive results from fecal immunochemical tests during colorectal cancer screeningClin Gastroenterol Hepatol. 2019 Feb;17(3):469-476. doi: 10.1016/j.cgh.2018.05.022. Epub 2018 May 29.

Tabibian JH, Kalani A, Moran AM, Panganamamula K. Entranodal Marginal Zone B Cell  (MALT) lymphoma of the esophagusJ Gastrointest Cancer. 2019 Jan 8. doi: 10.1007/s12029-018-00187-5

Marya N, Jawaid S, Foley A, Han S, Patel K, Maranda L, Kaufman D, Bhattacharya K, Marshall C, Tennyson J, Cave DR. A randomized controlled trial comparing efficacy of early video capsule endoscopy with standard of care in the approach to nonhematemesis GI bleeding (with videos)GIE. Volume 89, Issue 1, January 2019, Pages 33-43.e4 of GIE. Video interview with Dr. Marya | ASGE podcast with Dr. Marya


Jacobs JP, Dong TS, Agopian V, Lagishetty V, Sundaram V, Noureddin M, Ayoub WS, Durazo F, Benhammou J, Enayati P, Elashoff D, Goodman MT, Pisegna J, Hussain S. Microbiome and bile acid profiles in duodenal aspirates from patients with liver cirrhosis: The microbiome, microbial markers and liver disease studyHepatol Res. 2018 Dec;48(13):1108-1117. doi: 10.1111/hepr.13207. Epub 2018 Jul 30.

Berry R, Han J, Kardashian AA, LaRusso NF, Tabibian JH. Hemobilia: Etiology, diagnosis and treatmentLiver Research. 2018 (Review)

Le LB, Kalani ADong TS, Lindor KD, Tabibian JH. Risk stratification for esophageal variceal screening in cirrhosis: A cohort studyGastroenterology. 2018;154(6):S1252-1253 and DDW 2018, Washington, DC, AASLD poster presentation.

Kalani A, Tabibian JH, Lindor KD Emerging therapeutic targets for primary schlerosing cholangitisExpert Opinion on Orphan Drugs. Volume 6, 2018 - Issue 7

Rubin ZA, Kim S, Thaker AM, Muthusamy VR. Safely reprocessing duodenoscopes: Current evidence and future directionsLancet Gastroenterol Hepatol. 2018 Jul;3(7):499-508. doi: 10.1016/S2468-1253(18)30122-5

Jacobs, J, Dong T, et al. Microbiome and bile acid profiles in duodenal aspirates from cirrhotics: The microbiome, microbial markers and liver disease studyHepatol Res. 2018 Jun 20. doi: 10.1111/hepr.13207

Dong T, Aby E, Benhammou JN, Kawamoto J, Han SH, May FP, Pisegna JR. Metabolic syndrome does not affect sustained virological response of direct-acting antivirals while hepatitis C clearance improves hemoglobin A1c. In Press. World J Hepatol. June 2018.

Phan J, Nguyen V, Sheinbaum A, et al. Hyperlipidemia and nonalcoholic steatohepatitis predispose to hepatocellular carcinoma development without cirrhosisJ Clin Gastroenterol. 2018 Jun 16. doi: 10.1097/MCG.0000000000001062

Aby E, Phan J, Saab S. Inadequate Hepatocellular Carcinoma Screening in Patients with Non-Alcoholic Steatohepatitis CirrhosisJ Clin Gastroenterol. 2018 Jun 16. doi: 10.1097/MCG.0000000000001075

Phan J, Muthusamy R. Managing Incidental Pancreatic CystsCurrent Gastroenterology Reports. 2018 Jun 9;20(7):32. doi: 10.1007/s11894-018-0638-5

May F, Yu C, Kaunitz JC. High Quality of Cancer Care in the Department of Veterans Affairs (VA)Am J Cancer Res. 2018 Apr 1;8(4):761-762. eCollection 2018

Thaker AM, Kim S, Sedarat A, Watson RR, Muthusamy VR. Inspection of Endoscope Instrument Channels After Reprocessing Using a Prototype BorescopeGastrointest Endosc. 2018 May 9. pii: S0016-5107(18)32696-8. doi: 10.1016/j.gie.2018.04.2366. [Epub ahead of print] PubMed PMID: 29753038

Thaker AM, Muthusamy VR, Sedarat A, Watson RR, Kochman ML, Ross AS, Kim S. Duodenoscope Reprocessing Practice Patterns in U.S. Endoscopy Centers: A Survey StudyGastrointest Endosc. 2018 Apr 20. pii: S0016-5107(18)32615-4. doi: 10.1016/j.gie.2018.04.2340. [Epub ahead of print] PubMed PMID: 29684387

Thaker AM, Muthusamy VR. Non-operative Treatment of Gastroesophageal Reflux Disease. In: Oleynikov, D and Fisichella M, editors. A Mastery Approach to Complex Esophageal Diseases. 2018. doi: 10.1007/978-3-319-75795-7

Abbas AM, Strong AT, Diehl DL, Brauer BC, Lee IH, Burbridge R, Zivny J, Higa JT, Falcão M, El Hajj II, Tarnasky P, Enestvedt BK, Ende AR, Thaker AM, Pawa R, Jamidar P, Sampath K, de Moura EGH, Kwon RS, Suarez AL, Aburajab M, Wang AY, Shakhatreh MH, Kaul V, Kang L, Kowalski TE, Pannala R, Tokar J, Aadam AA, Tzimas D, Wagh MS, Draganov PV; LA-ERCP Research Group. Multicenter Evaluation of the Clinical Utility of Laparoscopy-assisted ERCP in Patients with Roux-en-Y Gastric BypassGastrointest Endosc. 2018 Apr;87(4):1031-1039. doi: 10.1016/j.gie.2017.10.044. Epub 2017 Nov 10. PubMed PMID: 29129525

Zanazanian A, Kalani A, Tabibian JH. Pseudocirrhosis in a Patient with New-onset Dysphagia and History of Ovarian CarcinomaACG Case Rep J. 2018 Apr 11;5:e29. doi: 10.14309/crj.2018.29. eCollection 2018

Benhammou JN, Ko A, Alvarez M, Rankin C, Padua D, Garske K, Kaminska D, Bhagat Y, Pihlajamaki J, Pisegna JR, Pajukanta P. The Role of a Novel Long Intergenic Non-coding RNA, OLMALINC, in the Regulation of SREBP2 and SCD1. UCLA CURE Research Symposium, March 2018. (Distinguished Abstract)

Benhammou JNDong TS, May FP, Kawamoto J, Dixit R, Jackson S, Dixit V, Bhattacharya D, Han S, Pisegna JR. Race Affects SVR12 in a Large and Ethnically Diverse Hepatitis C Infected Patient Population Following Treatment with Direct Acting Antivirals: Analysis of a Single Center Department of Veteran’s Affairs CohortPharmacology Research and Perspectives, 2018 Feb 22; 6:e00379. PMC5821896 

Fung BM, Kalani A, Tabibian JH. Variceal Hemorrhage with White Nipple Sign Associated with Strangulated Umbilical Hernia in a Patient with CirrhosisClin Gastroenterol Hepatol. 2018 Feb 6. pii: S1542-3565(18)301221-6. doi: 10.1016/j.cgh.2018.01.050


Patel AA, Walling AM, May FP, Saab S, Wenger N. Palliative Care and Health Care Utilization for Patients With End-Stage Liver Disease at the End of LifeClinical Gastroenterology and Hepatology 2017. Oct;15(10):1612-1619.e4. doi: 10.1016/j.cgh.2017.01.030. Epub 2017 Feb 4

Aby E, Dong T, Kawamoto J, Pisegna JR and Benhammou JNImpact of Sustained Virologic Response on Chronic Kidney Disease Progression in Hepatitis CWorld J Hepatol, 2017 Dec 28; 9:1352-1360. PMC5756725

Wang J, Thaker AMNoor El-Nachef W, Watson RR. Transhiatal Herniation of the Pancreas: A Rare Cause of Acute PancreatitisACG Case Rep J. 2017 May 10;4:e66. doi: 10.14309/crj.2017.66. eCollection 2017. PubMed PMID: 28516111; PubMed Central PMCID: PMC5425284

Jackson SB, Villano NP, Benhammou JN, Lewis M, Pisegna JR, Padua D. Gastrointestinal Manifestations of Hereditary Hemorrhagic Telangiectasia (HHT): A Systematic Review of the LiteratureDig Dis Sci. 2017 Oct;62(10):2623-2630. doi: 10.1007/s10620-017-4719-3. Epub 2017 Aug 23

Aby E, Dong T, Kawamoto J, Pisegna JR, Benhammou JNImpact of Sustained Virological Response on Chronic Kidney Disease Progression in Hepatitis CWorld J Hepatol. 2017 Dec 28;9(36):1352-1360

Gu P, Huang B, Rezaie A. An Unexpected Cause of Small Bowel ObstructionGastroenterology. 2017 May;152(6):e14-e15. doi: 10.1053/j.gastro.2016.09.057. Epub 2017 Apr 4

Carr RM, Patel A, Oranu A, Kerner C, Praestgaard A, Forde KA, Reddy KR, Lichtenstein GR. Intestinal Inflammation Does Not Predict Nonalcoholic Fatty Liver Disease Severity in Inflammatory Bowel Disease PatientsDig Dis Sci. 2017 May;62(5):1354-1361. doi: 10.1007/s10620-017-4495-0. Epub 2017 Mar 6

Thaker AM, Muthusamy VR. The Role and Utility of Cholangioscopy for Diagnosing Indeterminate Biliary StricturesGastrointestinal Intervention. 2017;6(1):2-8. doi: 10.18528/gii160035

Ge PS, Muthusamy VR. Endoscopic Mucosal Resection for Barrett's EsophagusJ Laparoendosc Adv Surg Tech A. 2017 Apr;27(4):404-411. doi: 10.1089/lap.2016.0532. Epub 2016 Nov 30 

Saab S, Phan J, Jimenez M, Grotts J, Walters L, Hathaway K, Patel K, Lankarani A, Herman M, Holloman D, Nieto J. Endoscopic Ultrasound Liver Biopsies Accurately Predicts the Presence of Fibrosis in Patients with Fatty LiverClin Gastroetnerol Hepatol. 2017

Chalifoux S, Vu M, Ho W. Colonic Hemosuccuus PancreaticusClin Gastroenterol Hepatol. 2017 Apr;15(4):e82-e83. doi: 10.1016/j.cgh.2016.09.151. Epub 2016 Oct 3

Nguyen KT, Jimenez M, Moghadam N, Wu C, Farid A, Grotts J, Elashoff D, Choi G, Durazo FA, El-Kabany MM, Han SB, Saab S. Decrease of Alpha-fetoprotein in Patients with Cirrhosis Treated with Direct-acting Antivirals  J Clin Transl Hepatol 2017;5(1):43–49. DOI: 10.14218/JCTH.2016.00057 Received: November 3, 2016 Accepted: February 1, 2017 Published: March 28, 2017

Wang J, Benhammou JN, Ghassemi K, Kim S, Sedarat A, Farrell J, Pisegna JR. Endoscopic Ultrasound-Guided Fine Needle Aspiration Accurately Diagnoses Smaller Pancreatic Neuroendocrine Tumors Compared To Computer Tomography-Guided Fine Needle AspirationJ Gastroenterol Pancreatol Liver Disord. 2017;4(2):1-7. doi: 10.15226/2374-815X/4/2/00186. Epub 2017 Mar 27. 

Thaker AM, Muthusamy VR. Advanced Imaging Techniques in Gastrointestinal EndoscopyJ Laparoendosc Adv Surg Tech A. 2017 Mar;27(3):234-241. doi: 10.1089/lap.2016.0566. Epub 2016 Dec 20. Review. PubMed PMID: 27996369

Ge PS, Muthusamy VR, Gaddam S, Jaiyeola DM, Kim S, Sedarat A, Donahue TR, Hosford L, Wilson RH, Grande DP, Keswani RN, Kushnir VM, Mullady D, Edmundowicz SA, Early DS, Komanduri S, Wani S, Watson RR. Evaluation of the 2015 AGA Guidelines on Pancreatic Cystic Neoplasms in a Large Surgically Confirmed Multicenter CohortEndosc Int Open. 2017 Mar;5(3):E201-E208. doi: 10.1055/s-0042-122010

Benhammou JN, Phan J, Lee H, Ghassemi K, Parsons W, Grody WW, Pisegna JR. A Sodium Channel Myotonia Presenting with Intermittent Dysphagia as a Manifestation of a Rare SCN4A VariantJ Mol Neurosci. 2017 Mar;61(3):312-314. doi: 10.1007/s12031-016-0878-5. Epub 2016 Dec 23

Minalyan A, Benhammou JN, Arthashesyan A, Lewis MS, Pisegna JR. Autoimmune Atrophic Gastritis: Current PerspectivesClin Exp Gastroenterol. 2017 Feb 7;10:19-27. doi: 10.2147/CEG.S109123. eCollection 2017

Patel AA, Walling AM, May FP, Saab S, Wenger N 2017. Palliative Care and Healthcare Utilization for Patients with End-Stage Liver Disease at the End of LifeClin Gastroenterol Hepatol. 2017 Feb 4. pii: S1542-3565(17)30143-X. doi: 10.1016/j.cgh.2017.01.030

Nguyen KT, Han SH. (2017) Hepatitis A and E. in Friedman L, Martin P (eds.) Handbook of Liver Disease, 4th Edition, Elsevier. Chapter 3 in press