Gastroenterology Fellowship (ACGME) - Research & Scholarly Activity

Publications during Fellowship

1. Lam AY, Lee JK. Low-Literacy Instructions Enable Successful Completion of Fecal Immunochemical Tests. Clin Gastroenterol Hepatol. 2019 Aug;17(9):1729-1731. PMID: 31055180
2. Lam AY, Li Y, Gregory DL, Prinz J, O’Reilly J, Manka M, Pandolfino JE, Keswani RN. Association between improved adenoma detection rates and interval colorectal cancer rates after a quality improvement program. Gastrointest Endosc. 2020 Aug;92(2):355-364.e5. PMID: 32092289

3. Lam AY. Author Spotlight: Angela Y. Lam. Dig Dis Sci. 2020 Jun;65(6):1577. PMID: 32350719
4. Gutin LS, Lam AY, Velayos FS, Santos SA. Going Viral: Management of IBD in the Era of the COVID-19 Pandemic. Dig Dis Sci. 2020 Jun;65(6):1571-1575. PMID: 32363528

5. Lam AY, Gutin LS, Nguyen Y, Velayos FS. Management of Recurrent Clostridioides Infection: A Difficile Problem in Inflammatory Bowel Disease Patients. Dig Dis Sci. 2020 Nov;65(11):3111-3115. PMID: 32749638
6. Guo H, Lam AY, Shaheen AA, Forbes N, Kaplan GG, Andrews CN, Laffin M, Singh S, Jairath V, Teriaky A, Lee JK, Ma C. Urban-Rural Disparities and Temporal Trends in Peptic Ulcer Disease Epidemiology, Treatment, and Outcomes in the United States. Am J Gastroenterol. 2021 Feb 1;116(2):296-305. PMID: 33105195
7. Lam AY, Lee JK. When Should We Let Colorectal Cancer Screening Get Personal? Am J Gastroenterol. 2021 Feb 1;116(2):278-279. PMID: 33298702
8. Lam AY, Lee JK, Levin TR. Simplifying ADR reporting – a worthy goal, but the devil is in the details. Clin Gastroenterol Hepatol. 2021 Apr 24:S1542-3565(21)00468-7. doi: 10.1016/j.cgh.2021.04.034. PMID: 33905770.
9. Lam AY, Ma C, Lee JK, Bredenoord AJ. Eosinophilic esophagitis: new molecules, better life? Curr Opin Pharmacol. 2022 Apr;63:102183. doi: 10.1016/j.coph.2022.102183. Epub 2022 Feb 15.  PMID: 35176546
10. Lam AY, Duloy AM, Keswani RN. Quality Indicators for the Detection and Removal of Colorectal Polyps and Interventions to Improve Them. Gastrointest Endosc Clin N Am. 2022 Apr;32(2):329-349. doi: 10.1016/j.giec.2021.12.010. Epub 2022 Feb 23.  PMID: 35361339
11. Lam AY, Lee JK. The New Kids on the Block: Emerging Complementary Colonoscopy Quality Metrics. Clin Gastroenterol Hepatol. 2023;21(1):26-28. PMID: 35552014.
12. Lee JK, Lam AY, Jensen CD, Marks AR, Badalov J, Layefsky E, Kao K, Ho NJ, Schottinger JE, Ghai NR, Carlson CM, Halm EA, Green B, Li D, Corley DA, Levin TR. Impact of the COVID-19 Pandemic on Fecal Immunochemical Testing, Colonoscopy Services, and Colorectal Neoplasia Detection in a Large United States Community-based Population. Gastroenterology. 2022;163(3):723-731. PMID: 35580655; PMCID: PMC9107101.
13. Lam AY, Lee JK, Merchant S, Jensen CD, Sedki M, Corley DA. Biopsy of Non-tumor Sites After Biopsy of a Colorectal Cancer is not Associated With Metachronous Cancers: A Case-control
14. Lam AY, Lee JK. CMV Colitis Masquerading as MALT Lymphoma in an Immunocompetent Patient. ACG Case Rep J. 2022;9(9):e00851. PMID: 36072358; PMCID: PMC9439750.
15. Lam AY, Gonsalves N. “Tickle me pink”: update in eosinophilic gastrointestinal disorders. Curr Opin Gastroenterol. 2023 Jan 1;39(1):36-42. PMID: 36504034.
16. Lam AY, Lee JK, et al. Epidemiologic Burden and Projections for Eosinophilic Esophagitis-Associated Emergency Department Visits in the United States. Clin Gastroenterol Hepatol. 2023.

Abstracts during Fellowship

1. Lam AY, Lee JK, Merchant S, Jensen CD, Sedki M, Corley DA. Biopsy of non-tumor sites after biopsies of a colorectal cancer is associated with metachronous cancers: a case-control study. ACG Meeting 2021
2. Lam AY, Lee JK, et al. Impact of the COVID-19 Pandemic on Fecal Immunochemical Testing, Colonoscopy Services, and Colorectal Neoplasia Detection in a Large United States Community-based Population. DDW 2022.

Awards and Honors

1. ACG Presidential Abstract Award 2021

Publications during Fellowship

1. Lam AY, Gutin LS, Nguyen Y, Velayos FS. Management of Recurrent Clostridioides Infection: A Difficile Problem in Inflammatory Bowel Disease Patients. Dig Dis Sci. 2020 Nov;65(11):3111-3115. PMID: 32749638
2. Gutin LS. Author Spotlight: Liat Gutin. Dig Dis Sci. 2020 Jun;65(6):1576. PMID: 32377897
3. Gutin LS, Lam AY, Velayos FS, Santos SA. Going Viral: Management of IBD in the Era of the COVID-19 Pandemic. Dig Dis Sci. 2020 Jun;65(6):1571-1575. PMID: 32363528
4. Gutin LS, Yao F, Dodge JL, Grab J, Mehta N. Comparison of Liver Transplant Wait-List Outcomes Among Patients With Hepatocellular Carcinoma With Public vs Private Medical Insurance. JAMA Netw Open. 2019 Aug 2;2(8):e1910326. PMID: 31469395
5. Gutin LS, Piceno Y, Fadrosh D, Lynch K, Zydek M, Kassam Z, LaMere B, Terdiman J, Ma A, Somsouk M, Lynch S, El-Nachef N. Fecal microbiota transplant for Crohn disease: A study evaluating safety, efficacy, and microbiome profile. United European Gastroenterol J. 2019 Jul;7(6):807-814. PMID: 31316785
6. Fine LS, Zhu S, Shirazi A, Lee JK, Velayos FS. Increased Risk of Hospitalization, Surgery, and Venous Thromboembolism Among Patients With Inflammatory Bowel Disease and Malnutrition in a Large, Community-Based Health Care System. Am J Gastroenterol. 2023 Epub ahead of print. PMID: 36892512.

Abstracts during Fellowship

1. Gutin LS, Piceno Y, Fadrosh D, Lynch K, Zydek M, Kassam Z, LaMere B, Terdiman J, Ma A, Somsouk M, Lynch S, El-Nachef N. Fecal microbiota transplant for Crohn disease: A study evaluating safety, efficacy, and microbiome profile. UEGW Meeting 2019
2. Gutin LS, Zhu S, Shirazi A, Lee JK, Velayos FS. Increased Risk of Hospitalization, Surgery and Venous Thromboembolism Among Patients With Inflammatory Bowel Disease and Malnutrition in a Large, Community-Based Healthcare System. ACG Meeting 2021
3. Gutin LS, Zhu S, Shirazi A, Lee JK, Velayos FS. Factors associated with the development of malnutrition among patients with inflammatory bowel disease in a large community-based healthcare system. ACG Meeting 2021

Awards and Honors

1. UEGW Top Paper of the Year 2019
2. ACG Governor’s Award for Clinical Research 2021
3. ACG Outstanding Poster Presentation Award 2021

Publications during Fellowship

1. Ngamruengphong S, Ferri L, Aihara H, Draganov PV, Yang DJ, Perbtani YB, Jue TL, Munroe CA, Boparai ES, Mehta NA, Bhatt A, Kumta NA, Othman MO, Mercado M, Javaid H, Aadam AA, Siegel A, James TW, Grimm IS, DeWitt JM, Novikov A, Schlachterman A, Kowalski T, Samarasena J, Hashimoto R, Chehade NEH, Lee J, Chang K, Su B, Ujiki MB, Mehta A, Sharaiha RZ, Carr-Locke DL, Chen A, Chen M, Chen YI, Khoshknab MP, Wang R, Kerdsirichairat T, Tomizawa Y, von Renteln D, Kumbhari V, Khashab MA, Bechara R, Karasik M, Patel NJ, Fukami N, Nishimura M, Hanada Y, Wong Kee Song LM, Laszkowska M, Wang AY, Hwang JH, Friedland S, Sethi A, Kalloo AN. Efficacy of Endoscopic Submucosal Dissection for Superficial Gastric Neoplasia in a Large Cohort in North America. Clin Gastroenterol Hepatol. 2020 Jun 18:S1542-3565(20)30834-X. PMID: 32565290
2. Boparai ES, Velayos FS, Roy A, Li C, Alkoraishi AS, Munroe CA. Elevating the Technique: Resecting Complex Dysplastic Lesions of the Colon in Patients with Inflammatory Bowel Disease. Dig Dis Sci. 2020 Jan;65(1):78-81. doi: 10.1007/s10620-019-05931-w. PMID: 31705343.
3. Kolodzie K, Cakmakkaya OS, Boparai ES, Tavakol M, Feiner JR, Kim MO, Newman TB, Niemann CU. Perioperative Normal Saline Administration and Delayed Graft Function in Patients Undergoing Kidney Transplantation: A Retrospective Cohort Study. Anesthesiology. 2021 Oct 1;135(4):621-632. PMID: 34265037.
4. Alam A, Ma C, Jiang SF, Jensen CD, Webb KH, Boparai ES, Jue TL, Munroe CA, Gupta S, Fox J, Hamerski CM, Velayos FS, Corley DA, Lee JK. Declining Colectomy Rates for Nonmalignant Colorectal Polyps in a Large, Ethnically Diverse, Community-Based Population. Clin Transl Gastroenterol. 2022;13(5):e00477. PMID: 35347095; PMCID: PMC9132519.
5. Boparai ES, Lee JK, Zhu S, Shirazi A, Velayos FS. Brief Communication: The Contemporary Probability of Occult Colorectal Cancer in Patients with Colitis-Related Dysplasia undergoing Colectomy. Am J Gastroenterol. 2023 Epub ahead of print. PMID: 37040554.

Abstracts during Fellowship

1. Boparai ES, et al. Incidence of occult colorectal cancer in patients with colitis-related dysplasia undergoing colectomy. KPSF Academy of Medical Educators 2021 2^nd Annual Research Symposium
2. Boparai ES, et al. Clinical validation of fecal immunochemical test for colorectal cancer. Practiceupdate.com, published 2021 https://www.practiceupdate.com/content/clinical-validation-of-fecal-immunochemical-test-for-colorectal-cancer/122153/65/9/1

Publications during Fellowship

1. Kang J, Evans N, Singh S, Samadder N, Lee J. The global burden of Post-colonoscopy colorectal cancers using the World Endoscopy Organization Nomenclature: a systematic review and meta-analysis. Aliment Pharmacol Ther. 54(10):1232-1242. doi: 10.1111/apt.16622. 2021 Sept. PMID: 34587323
2. Lee A, Ko Christopher, Buitrago C, Hiramoto B, Hilson L, Furey C, Tonthat A, Evans N, Yeh J, Nguyen S, Serna J, Shulman I, Matsushima K, Banks P, Buxbaum J. Lactated Ringer’s versus normal saline resuscitation for mild acute pancreatitis: a randomized trial. Gastroenterology, 160(3):955-957. 2020 Nov.
3. Lee A, Ko Christopher, Buitrago C, Hiramoto B, Hilson L, Furey C, Tonthat A, Evans N, Yeh J, Nguyen S, Serna J, Shulman I, Matsushima K, Banks P, Buxbaum J. Lactated Ringer’s versus normal saline resuscitation for mild acute pancreatitis: a randomized trial. Gastroenterology, 160(3):955-957. 2020 Nov.

Abstracts during Fellowship

1. Kang J, Evans N, Singh S, Samadder N, Lee J. What’s in a name? The global burden of postcolonoscopy colorectal cancer using WEO terminology. British Society of Gastroenterology (BSG) Annual Meeting, poster presentation, November 2021.
2. Evans N, Kang J, Singh S, Samadder N, Lee J. What’s in a name? The global burden of postcolonoscopy colorectal cancer using WEO terminology. American College of Gastroenterology (ACG) Annual Meeting, poster presentation, October 2021.
3. Evans N, Gupta S, Fox J. Optimization of ergonomic tools available in the endoscopy lab for clinical gastroenterologists. Kaiser Permanente Northern California Academy of Medical Educators Research Symposium, submitted for poster presentation, May 2022.
4. Evans N, Kang J, Singh S, Samadder N, Lee J. The global burden of Post-colonoscopy colorectal cancers using the World Endoscopy Organization Nomenclature: a systematic review and meta-analysis. Kaiser Permanente Northern California Academy of Medical Educators Research Symposium, submitted for poster presentation, May 2022.
5. Evans N, Kang J, Singh S, Samadder N, Lee J. The global burden of Post-colonoscopy colorectal cancers using the World Endoscopy Organization Nomenclature: a systematic review and meta-analysis. Northern California Society for Clinical Gastroenterology (NCSCG) Gastroenterology Symposium, submitted for poster presentation, June 2022.
6. Evans N, Kang J, Singh S, Samadder N, Lee J. The global burden of post-colonoscopy colorectal cancers using the World Endoscopy Organization Nomenclature: a systematic review and meta-analysis. KPSF Research and Scholarship Symposium, abstract displayed, May 2022.
7. Evans N, Kang J,Singh S, Samadder N, Lee J. What’s in a name? The global burden of postcolonoscopy colorectal cancer using WEO terminology. American College of Gastroenterology (ACG) Annual Meeting, 2021 Oct.

Awards and Honors

1. Northern California Society for Clinical Gastroenterology Symposium 2023, Young Investigator Award, “The global burden of post-colonoscopy colorectal cancers using the World Endoscopy Organization Nomenclature: a systematic review and meta-analysis”.
2. Kaiser Permanente San Francisco Academy of Medical Educators 4^th Annual Research Symposium, Quality Improvement Research Award, “Optimization of ergonomic tools available in the endoscopy lab for clinical gastroenterologists”.
3. Northern California Society for Clinical Gastroenterology Symposium 2022 Young Investigator Award, “The global burden of post-colonoscopy colorectal cancers using the World Endoscopy Organization Nomenclature: a systematic review and meta-analysis”.

Publications during Fellowship

1. Adler E. A therapeutic relationship. N Engl J Med. 2021;385(18):1640-1641.

Abstracts during Fellowship

1. Gut-Directed Hypnotherapy for Irritable Bowel Syndrome: A Systematic Review and Meta-Analysis, Northern California Society of Clinical Gastroenterology

Awards and Honors

1. Young investigator Award, Northern California Society of Clinical Gastroenterology 2024

Publications during Fellowship

1. Kane K, Velayos FS, Lee JK, Cherny S, Karia K. A Response-able Diagnosis: Type 2 Autoimmune Pancreatitis in the Setting of Ulcerative Colitis. Dig Dis Sci. 2024 Apr 18. doi: 10.1007/s10620-024-08408-7. Epub ahead of print. PMID: 38637453.

Abstracts during Fellowship

1. Kevin K. Association of oral antibiotic use and early-onset colorectal cancer. Digestive Disease Week 2024: Clinical Practice Plenary Distinguished Abstract

Awards and Honors

1. Young investigator Award, Northern California Society of Clinical Gastroenterology 2024

Publications

1. Leung LJ, Gupta S, Jue TL. An un-a-“pill”ing lumen-apposing metal stent occlusion. Gastrointest Endosc. 2022 Feb;95(2):384-385. doi: 10.1016/j.gie.2021.10.005. Epub 2021 Oct 12. PMID: 34648826.
2. Leung LJ, Lee JK, Merchant SA, Jensen CD, Alam A, Corley DA. Post-Colonoscopy Colorectal Cancer Etiologies in a Large Integrated US Health Care Setting. Gastroenterology. 2023 Mar;164(3):470-472.e3. doi: 10.1053/j.gastro.2022.11.031. Epub 2022 Dec 1. PMID: 36462551; PMCID: PMC9975052.
3. Leung LJ, Ma GK, Lee JK, Fukami N, Chang H, Svahn J, Xu MM, Lam S, Risbud A, Jue TL. Successful Design and Implementation of a POEM Program for Achalasia in an Integrated Healthcare System. Dig Dis Sci. 2023 Feb 1:1–9. doi: 10.1007/s10620-023-07839-y. Epub ahead of print. PMID: 36725765; PMCID: PMC9891752.
4. Lee JK, Koripella PC, Jensen CD, Merchant SA, Fox JM, Chang SX, Dang CH, Velayos FS, Boparai ES, Evans NS, Leung LJ, Badalov JM, Quesenberry CP, Corley DA, Levin TR. Randomized trial of patient outreach approaches to de-implement outdated colonoscopy surveillance intervals. Clinical Gastroenterology and Hepatology. 2024 Jan;6:S1542-3565(24)00008-9. PMID: 38191014.
5. Leung LJ, Hamerski C, Karia K, Gupta S. EUS-Guided Cholecystoduodenostomy for a Poor Surgical Candidate With Chronic Octreotide-Associated Gallstones From Metastatic Neuroendocrine Tumor. ACG Case Rep J. 2024 Mar 22;11(3):e01306. PMID: 38524262.

Abstracts during Fellowship

1. Leung LJ, Jue TL, Ma G, Chang H, Lee JK. Use of EndoFLIP in Predicting Successful Response to POEM for Achalasia in a Large Integrated Healthcare System. Poster Presentation at Digestive Disease Week 2023, May 7, 2023, Chicago, Illinois.
2. Leung LJ, Hamerski C, Karia K, Gupta S. Angiosarcoma: A Rare Cause of Refractory GI Bleed. Poster Presentation at Digestive Disease Week 2023, May 9, 2023, Chicago, Illinois.
3. Leung LJ, Koripella P, Hamerski C, Karia K, Leung M, Lee J, Gupta S. (Octreo)Tides Have Turned: EUS-Guided Cholecystoduodenostomy with Gallstone Extraction in a Patient with Recurrent Cholangitis and Biliary Colic Due to Chronic Octreotide for Metastatic Neuroendocrine Tumor. Poster Presentation at the American College of Gastroenterology 2023 Annual Scientific Meeting, October 23, 2023, Vancouver, BC, Canada.
4. Leung LJ, Chang H, Ma GK. Defusing the BOM: Endoscopic Suturing to Treat a Blown-Out Myotomy in Achalasia. Poster Presentation at Digestive Disease Week 2024, May 18, 2024, Washington, D.C.
5. Leung LJ, Merchant SA, Badalov JM, Corley DA, Li D. Incidence and Predictors of C. Difficile Infection After Helicobacter Pylori Treatment in a Large, Community-Based U.S. Population. Poster Presentation at Digestive Disease Week 2024, May 18, 2024, Washington, D.C.
6. Leung LJ, Davis BG, Goldman ML, Gupta S, Karia K, Hamerski C. An EDGI Fix for a Rare Cause of GI Bleeding: EUS-Glue/Coil of a Bleeding Duodenal Varix via EUS-Directed Transgastric Intervention. Oral Case Presentation at Digestive Disease Week 2024, May 20, 2024, Washington, D.C.

Awards and Honors

1. Outstanding Poster Presenter Award, ACG 2023
2. Poster of Distinction, DDW 2024
3. ASGE Oral Case Presentation 1^st Place, DDW 2024
4. Fellow Excellence Award 2024, Northern California Society of Clinical Gastroenterology

Abstracts during Fellowship

1. Marcia Leung, Lawrence Leung, Jeffrey Lee, Nizar Mukhtar, Lyle Shlager. Getting to the GIST: Straight to Surgery for Refractory GI Bleeding. ACG Scientific Meeting, Vancouver CA, October 2023
2. Chandni Kapoor, Marcia Leung, Mitchell Liverant, Kavita Radhakrishnan. An Uncommon Cause of Hypercalcemia and Infiltrative Liver Disease. Accepted to NCSCG Conference, Monterey CA, June 2024

Publications during Fellowship

1. Chu JN, Goldman ML, Brandman D, Sohn JH, Islam K, Ross LA, Fox RK. Underrecognition and Suboptimal Quality of Care for Nonalcoholic Fatty Liver Disease Cirrhosis in Primary Care Patients with Diabetes Mellitus. Am J Med. 2024 Feb;137(2):172-177.e2. doi:10.1016/j.amjmed.2023.10.002. PMID: 37890572.

Abstracts / Presentations during Fellowship
      National

1. Goldman ML, Fox R, Falliers D, Islam K, Brandman D, Chu JN. Primary Care Provider Awareness and Use of FIB-4 Risk-Stratification for Metabolic-Dysfunction Associated Steatotic Liver Disease (MASLD). American Association for the Study of Liver Diseases, The Liver Meeting in Boston, MA. November 10-14, 2023.
2. Chu JN, Goldman ML, Brandman D, Sohn JH, Islam K, Fox RK. Prevalence and Risk Factors for Ultrasound-Positive Hepatic Steatosis among Primary Care Patients with Diabetes.  Society of General Internal Medicine Annual Meeting in Boson, MA. May 15-18, 2024.
3. Leung LJ, Davis BG, Goldman ML, Gupta S, Kunal K, Hamerski CM. An EDGI Fix for a Rare Cause of GI Bleeding: EUS-Glue/Coil of a Bleeding Duodenal Varix via EUS-Directed Trans-gastric Intervention. Digestive Disease Week in Washington, DC. May 19-21, 2024.

      Regional

1. Goldman ML, Fox R, Falliers D, Islam K, Brandman D, Chu JN. Primary Care Provider Awareness and Use of FIB-4 Risk-Stratification for Metabolic-Dysfunction Associated Steatotic Liver Disease (MASLD). Northern California Society for Clinical Gastroenterology, Annual GI Symposium in Monterey, CA. June 1-2, 2024.
2. Goldman ML, Chun N, Brandman D, Sohn JH, Islam K, Fox RK. Prevalence and Risk Factors for Ultrasound-Positive Hepatic Steatosis among Primary Care Patients with Diabetes. Northern California Society for Clinical Gastroenterology, Annual GI Symposium in Monterey, CA. June 1-2, 2024.

Awards and Honors

1. The Young Investigator Award from the Northern California Society for Clinical Gastroenterology.