Thormika Keo, MD, PhD

faculty photo
Clinical Assistant Professor of Medicine (Gastroenterology)
Department: Medicine

Contact information
The Corporal Michael J. Crescenz VA Medical Center
3900 Woodland Avenue
4th Floor, GI Suite
Philadelphia, PA 19104-6106
Office: 215-823-5800 ext 204358
Education:
BS (Bachelor of Science in Biochemistry)
University of California Los Angeles, 1999.
MD (Doctor of Medicine)
New York University School of Medicine, 2008.
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Description of Clinical Expertise

Neurogastroenterology and Anorectal disorders

Selected Publications

S Javed, A Mastrangelo, HN Ryan, E Toto, T Keo, JC Reynolds, NK Ahuja: Opiate Use Is Associated with Rectal Hypersensitivity in Patients Undergoing Anorectal Manometry. Digestive Diseases Week 2021.

B Zoll, R Hernandez, T Keo, HN Ryan, E Toto, JC Reynolds, NK Ahuja: Clinical Associations with Lactulose Breath Test Results in a Retrospective Single-Center Cohort. American Neurogastroenterology and Motility Society 2021.

B Zoll, R Hernandez, T Keo, HN Ryan, E Toto, JC Reynolds, NK Ahuja: Symptomatic Response to Rifaximin Monotherapy in Intestinal Methanogen Overgrowth. American Neurogastroenterology and Motility Society 2021.

Hsieh A, Hsiehchen D, Layne S, Ginsberg GG, Keo T.: Trends and clinical features of intentional and accidental adult foreign body ingestions in the United States, 2000 to 2017. Gastrointestinal Endoscopy 91(2): 350-357, Feb 2020.

A Hsieh, D Hsiehchen, S Layne, G Gregory; T Keo.: Characterization of Foreign Body Ingestions Based on a National Survey of Consumer Products in the U.S. American College of Gastroenterology Annual Meeting October 2018.

Shuja A, Winston DM, Rahman AU, Mitty RD, Jaber BL, Keo T.: Esophageal food impaction during cultural holidays and national athletic events. Gastroenterology Reports (Oxf) 5(1): 43-46, Feb 2017.

Keo T, Leung J, Weinstock JV: Helminth infections Yamada’s Textbook of Gastroenterology, 6th edition, Wiley-Blackwell, Chapter 122 2015.

Shuja A, Mitty R, Keo, T: Burden of IBD on emergency department visits and inpatient hospitalization in the United States 2009-2010. Digestive Disease Week, Chicago, IL 2014 Notes: Poster presentation.

Keo T, Iovine N, Collins J, Kunwar P, Blaser MJ: Campylobacter jejuni capsule and lipooligosaccharide confers resistance to serum complement and cationic antimicrobial peptides. Virulence 2(1): 30-40, Jan 2011.

Keo T, Cheung RC: Identification of a Network of Coevolving Amino Acids in the PKR-Binding Domain of NS5A After Treatment With Interferon Plus Ribavirin in Humans. Digestive Disease Week, Chicago, IL 2011 Notes: Poster presentation.

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Last updated: 05/09/2025
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