Publications

  1. Arenas-Martinez JS, Wang F, Valdovinos-Garcia LR, Koop AH, Ravi K, Vela MF. Normal FLIP panometry analyzed by Dallas Consensus criteria reliably excludes actionable esophageal motility disorders and obviates the need for high-resolution manometry. Clin Gastroenterol Hepatol. 2026 Jun 11 Epub 2026 June 11
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  2. Bradley JA, Koop A, Lee AS, Beirne P, Johnson MM, DeVault KR, Houghton LA. Unravelling the Links Between Gastroesophageal Reflux and Lung Disease: New Insights. Dig Dis Sci. 2026 Apr 15 [Epub ahead of print]
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  3. Koop AH, Nimma IR, Avaiya K, Al Jawish M, Acuna EV, Lacy BE. Esophageal symptom burden remains high and associates with failed swallows after five years in patients with ineffective esophageal motility. Am J Physiol Gastrointest Liver Physiol. 2026 Jan 30 [Epub ahead of print]
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  4. Li T, Mumtaz S, Berianu F, Devault KR, Francis DL, Koop AH. Changes on Nailfold Video Capillaroscopy Associate With High-Resolution Esophageal Manometry Findings in Patients With Scleroderma. Gastro Hep Adv. 2026; 5 (1):100811 Epub 2025 Sept 18
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  5. Kamboj AK, Sood S, Truong B, Wong Kee Song LM, Wells M, Wigle D, Codipilly DC, Snyder DL, Alexander JA, Leggett C, Lennon RJ, Koop A, Vela M, Ravi K. Functional Lumen Imaging Probe as Part of Multimodality Assessment of Esophagogastric Junction Opening Is Important in Longitudinal Follow-Up of Patients With Treated Achalasia. Neurogastroenterol Motil. 2025 Dec; 37 (12):e70121 Epub 2025 July 14
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  6. Cottle C, Al Jawish M, Eluri S, Pang M, Koop A. Concurrent Colonoscopy Does Not Affect Results of Wireless Ambulatory pH Monitoring Techniques and Innovations in Gastrointestinal Endoscopy. 2025; 28(1):250943.
  7. Nihalani MN, Al Jawish M, Bosch W, Johnson MM, Pang M, Devault K, Houghton LA, Koop AH. Gastroesophageal reflux disease is not associated with disease severity in patients with Mycobacterium avium complex lung infection. Respir Investig. 2025 Jul; 63(4):623-628. Epub 2025 May 15.
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  8. Li T, Codipilly DC, Snyder D, Ravi K, Pang M, Koop AH. Optimizing Assessment of Contraction Reserve in Ineffective Esophageal Motility: A Study of Upright Multiple Rapid Swallows. J Neurogastroenterol Motil. 2025 Jan 31; 31(1):38-44.
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  9. Loeb L, Al Jawish M, Koop AH. Assessing Aberrant Subclavian Artery on High-Resolution Esophageal Manometry. Gastro Hep Adv. 2025; 4 (2):100570 Epub 2024 Oct 17
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  10. Nimma IR, Al Jawish M, Koop A, Kumbhari V, Elli F, Badurdeen D. Breakthrough Contractions During Multiple Rapid Swallows on High-Resolution Esophageal Manometry: A Marker of Esophageal Dysmotility in Post-Bariatric Surgery Patients. Obes Surg. 2025 Jan; 35 (1):154-160 Epub 2024 Dec 10
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  11. Li T, Jawish MA, Badurdeen D, Koop AH. Diagnosis and Management of Noncardiac Chest Pain. Gastroenterol Hepatol (N Y). 2024 Oct; 20 (9):533-541
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  12. Nawaz N, Saleh H, Koop AH. 57-Year-Old Woman With Chest Pressure. Mayo Clin Proc. 2024 Aug; 99 (8):1317-1322 Epub 2024 June 22
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  13. Farina DA, Olson DA, Carlson DA, Kahrilas PJ, Vespa E, Koop AH, Arroyo Y, Goudie E, Pandolfino JE. Effect of esophageal body recoil on clinical outcomes in non-spastic achalasia. Neurogastroenterol Motil. 2024 Jun; 36 (6):e14785 Epub 2024 Mar 24
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  14. Loeb L, Koop AH. 40-Year-Old Woman Presenting With Heartburn. Mayo Clin Proc. 2024 Apr; 99 (4):655-660 Epub 2024 Feb 06
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  15. Chase RC, Koop AH, Shaikh M, Imperial RJ, Harnois DM, Loo NM, O'Brien JJ. Successful treatment of severe passenger lymphocyte syndrome with efgartigimod synergy. Transfusion. 2024 Apr; 64 (4):755-760 Epub 2024 Mar 01
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  16. Vespa E, Farina DA, Pandolfino JE, Kahrilas PJ, Koop AH, Carlson DA. Presence of esophageal contractility after achalasia treatment is associated with improved esophageal emptying. Neurogastroenterol Motil. 2024 Mar; 36 (3):e14732 Epub 2023 Dec 28
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  17. Halder S, Pandolfino JE, Kahrilas PJ, Koop A, Schauer J, Araujo IK, Elisha G, Kou W, Patankar NA, Carlson DA. Assessing mechanical function of peristalsis with functional lumen imaging probe panometry: Contraction power and displaced volume. Neurogastroenterol Motil. 2023 Dec; 35 (12):e14692 Epub 2023 Oct 16
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  18. Koop AH, Travers PM, Khanna S, Pardi DS, Farraye FA, Hashash JG. Fidaxomicin treatment for Clostridioides difficile infection in patients with inflammatory bowel disease. J Gastroenterol Hepatol. 2023 Nov; 38 (11):1910-1916 Epub 2023 June 19
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  19. Koop AH, Kahrilas PJ, Schauer J, Pandolfino JE, Carlson DA. The impact of primary peristalsis, contractile reserve, and secondary peristalsis on esophageal clearance measured by timed barium esophagogram. Neurogastroenterol Motil. 2023 Oct; 35 (10):e14638 Epub 2023 July 07
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  20. Koop AH, Middleton J, Travers PM, Ghoz H, Francis D, DeVault KR, Pang M. Number of bottles of esophageal biopsies in the evaluation of eosinophilic esophagitis and clinical outcomes. Clin Res Hepatol Gastroenterol. 2023 Aug; 47 (7):102142 Epub 2023 May 30
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  21. Koop A, Villalba M, Hashash JG. Out of View: A Large Esophageal Ulcer With Fistula to the Spine. ACG Case Rep J. 2023 Feb; 10 (2):e00883 Epub 2023 Feb 22
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  22. Castillo-Larios R, Hernandez-Rojas D, Yu Lee-Mateus A, Abia-Trujillo D, Gomez V, Koop AH, Fernandez-Bussy S. Double Stenting for Management of a Bronchoesophageal Fistula: A Never-ending Dilemma. J Bronchology Interv Pulmonol 2023 Jan 1; 30 (1):77-79 Epub 2023 Jan 01
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  23. Kwon J, Koop A, Francis D. Development of Achalasia in a Patient With Chronic Intestinal Pseudo-Obstruction. ACG Case Rep J. 2022 Jun; 9 (6):e00758 Epub 2022 June 03
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  24. Kwon JY, Koop A, Francis D. A Crown of Gold. ACG Case Rep J. 2022 Jun; 9 (6):e00807 Epub 2022 June 20
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  25. Zaver HB, Koop AH, Aqel BA, Palmer WC. Hereditary hemochromatosis and liver transplantation: A survey of symptoms, lifestyle, and physician counseling pre- and post-transplant. Clin Res Hepatol Gastroenterol. 2022 May; 46 (5):101898 Epub 2022 Feb 27
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  26. Sileno SM, Koop AH, Palmer WC. 20-Year-Old Man With Elevated Liver Tests. Mayo Clin Proc. 2022 Apr; 97 (4):790-794 Epub 2022 Mar 11
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  27. Koop AH, Salih A, Omer M, Kwon J, Ghoz HM, McCann M, Tome J, Palmer WC, Pardi DS, Stancampiano FF. Abnormal findings on abdominopelvic cross-sectional imaging in patients with microscopic colitis: a retrospective, multicenter study. Scand J Gastroenterol. 2022 Mar; 57 (3):298-304 Epub 2021 Dec 03
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  28. Moktan VP, Koop AH, Olson MT, Lewis MD, Gomez V, Farraye FA. An Unusual Cause of Large Bowel Obstruction in a Patient With Ulcerative Colitis. ACG Case Rep J. 2021 Jul; 8 (7):e00638 Epub 2021 July 20
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  29. Kwon J, Koop A, Meek S, Francis D. A case series of eosinophilic esophagitis and primary adrenal insufficiency. Clin Res Hepatol Gastroenterol. 2021 Jul; 45 (4):101699 Epub 2021 Apr 20
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  30. Koop AH, Ghoz HM, Stancampiano FF, Nordelo K, Palmer WC. A survey of lifestyle habits, physician counseling, and direct-to consumer genetic testing in patients with hereditary hemochromatosis. Clin Res Hepatol Gastroenterol. 2021 Mar; 45 (2):101658 Epub 2021 Mar 03
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  31. Koop AH, Cowdell J, Patel N, Kesler A, Mwakyanjala E, Heckman A, Padmanabhan Menon D, Patel N, Narciso P, Reid A, Decicco N, Speicher L. Intravenous Access in Gastrointestinal Hemorrhage: A Multidisciplinary Quality Improvement Initiative Led by Emergency Department Nurses and Internal Medicine Physicians. J Nurs Care Qual. 2020 Jul/Sep; 35 (3):E41-E46
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  32. Koop AH, Francis DL. A Rare Case of Eosinophilic Esophagitis and Dysphagia Lusoria. Am J Gastroenterol. 2020 Jul; 115 (7):975
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  33. Koop AH, Francis DL. A Rare Case of Eosinophilic Esophagitis and Dysphagia Lusoria. Am J Gastroenterol. 2019 Dec 5 Epub 2019 Dec 05
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  34. Koop AH, Cowdell J, Patel N, Kesler A, Mwakyanjala E, Heckman A, Padmanabhan Menon D, Patel N, Narciso P, Reid A, Decicco N, Speicher L. Intravenous Access in Gastrointestinal Hemorrhage: A Multidisciplinary Quality Improvement Initiative Led by Emergency Department Nurses and Internal Medicine Physicians. J Nurs Care Qual. 2019 Nov 14 [Epub ahead of print]
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  35. Koop AH, Nakhleh RE, Wang MH. A Rare Cause of Paradoxical Nausea and Abdominal Pain. Gastroenterology. 2019 Oct; 157 (4):e4-e5 Epub 2019 May 09
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  36. Koop AH, Palmer WC, Stancampiano FF. Gastric outlet obstruction: A red flag, potentially manageable. Cleve Clin J Med. 2019 May; 86 (5):345-353
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  37. Pang M, Koop A, Brahmbhatt B, Bartel MJ, Woodward TA. Comparison of flexible endoscopic cricopharyngeal myectomy and myotomy approaches for Zenker diverticulum repair. Gastrointest Endosc. 2019 Apr; 89 (4):880-886 Epub 2018 Oct 17
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  38. Koop AH, Mousa OY, Pham LE, Corral-Hurtado JE, Pungpapong S, Keaveny AP. An Argument for Vitamin D, A, and Zinc Monitoring in Cirrhosis. Ann Hepatol. 2018 Nov - Dec; 17 (6):920-932
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  39. Koop AH, Mousa OY, Pham LE, Corral-Hurtado JE, Pungpapong S, Keaveny AP. An Argument for Vitamin D, A, and Zinc Monitoring in Cirrhosis. Ann Hepatol. 2018 Oct 16; 17 (6):920-932
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  40. Koop AH, Bailey RE, Lowman PE. Acute pancreatitis-induced takotsubo cardiomyopathy and cardiogenic shock treated with a percutaneous left ventricular assist device. BMJ Case Rep. 2018 Oct 12; 2018
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  41. Koop AH, Mousa OY, Wang MH. Clinical and endoscopic manifestations of gastrointestinal amyloidosis: a case series. Clujul Med. 2018 Oct; 91 (4):469-473 Epub 2018 Oct 30
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  42. Koop AH, Francis DL, DeVault KR. Visual and Automated Computer Analysis Differ Substantially in Detection of Acidic Reflux in Multichannel Intraluminal Impedance-pH Monitoring. Clin Gastroenterol Hepatol. 2018 Jun; 16 (6):979-980 Epub 2017 Nov 04
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  43. Helgeson SA, Koop AH, Harrison AM, Ray JC, Shaughnessy GF, Brett CL, Cornell LF, Bowman CL, Burton MC. Implementation of a New Guideline and Educational Sessions to Reduce Low-Value Continuous Pulse Oximetry Among Hospitalized Patients. South Med J. 2018 Feb; 111 (2):87-92
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  44. Koop AH, Stancampiano FF, Jackson J, Henry A, Horsley-Silva J, Pannala R, Heckman MG, Diehl NN, Palmer WC. Association of Total Fluid Intake and Output with Duration of Hospital Stay in Patients with Acute Pancreatitis. Gastroenterol Res Pract. 2018; 2018:7614381 Epub 2018 May 02
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  45. Marin-Acevedo JA, Koop AH, Diaz-Gomez JL, Guru PK. Non-atherosclerotic aortic mural thrombus: a rare source of embolism. BMJ Case Rep. 2017 Aug 1; 2017 Epub 2017 Aug 01
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  46. Koop AH, Irvin MA, Stancampiano FF. 56-Year-Old Woman With Cough and Fatigue for 1 Week. Mayo Clin Proc. 2017 Mar; 92 (3):e49-e53 Epub 2017 Jan 19
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  47. Koop A, Brauhmbhatt B, Lewis J, Lewis MD. Gastrointestinal Bleeding from Metastatic Prostate Adenocarcinoma to the Stomach. ACG Case Rep J. 2017; 4:e47 Epub 2017 Mar 29
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  48. Koop A, Bartel MJ, Francis D. A Case of Acute Esophageal Necrosis and Duodenal Disease in a Patient With Adrenal Insufficiency. Clin Gastroenterol Hepatol. 2016 Oct; 14 (10):A17-8 Epub 2016 July 05
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  49. Koop AH, Melendez-Rosado JM, Farres H, Mergo PJ, Shapiro BP. Penetrating aortic ulcer manifesting as atypical chest pain Journal of Radiology and Imaging.2016;1:(3):18-19.