Proton pump inhibitor therapy did not increase the prevalence of small-bowel injury: A propensity-matched analysis

Atsuo Yamada, Ryota Niikura, Koutarou Maki, Masanao Nakamura, Hirotsugu Watabe, Mitsuhiro Fujishiro, Shiro Oka, Shunji Fujimori, Atsushi Nakajima, Naoki Ohmiya, Takayuki Matsumoto, Shinji Tanaka, Kazuhiko Koike, Choitsu Sakamoto

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Background: Previous studies have reported that the suppression of acid secretion by using proton pump inhibitors (PPIs) results in dysbiosis of the small-bowel microbiota, leading to exacerbated small-bowel injuries, including erosions and ulcers. This study was designed to assess the association between PPI therapy and small-bowel lesions after adjustment for the differences in baseline characteristics between users and non-users of PPIs. Methods: We retrospectively studied patients suspected to be suffering from small-bowel diseases, who underwent capsule endoscopy between 2010 and 2013. We used propensity matching to adjust for the differences in baseline characteristics between users and non-users of PPIs. The outcomes included the prevalence of small-bowel lesions: erosion, ulcer, angioectasia, varices, and tumor. Results: We selected 327 patient pairs for analysis after propensity matching, and found no significant differences in the prevalence of small-bowel injuries, including erosions and ulcers, between users and non-users of PPIs. Two subgroup analyses of the effect of the type of PPI and the effect of PPI therapy in users and non-users of nonsteroidal anti-inflammatory drugs indicated no significant differences in the prevalence of small-bowel injuries in these two groups. Conclusion: PPI therapy did not increase the prevalence of small-bowel injury, regardless of the type of PPI used and the use of nonsteroidal anti-inflammatory drugs.

Original languageEnglish
Article numbere0182586
JournalPloS one
Volume12
Issue number8
DOIs
Publication statusPublished - 08-2017

All Science Journal Classification (ASJC) codes

  • General

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