Abstract
To develop appropriate management strategies for patients who take low-dose aspirin, it is important to identify the risk factors for GI injury. However, few studies have described the risk factors for small-bowel injury in these patients. To investigate factors influencing the risk of small-bowel mucosal breaks in individuals taking continuous low-dose aspirin. Capsule endoscopy data were collected prospectively from 5 institutions. Yokohama City University Hospital and 4 other hospitals. A total of 205 patients receiving treatment with low-dose aspirin for over 3 months. Colonoscopic and upper GI endoscopy had been performed in all of the patients before the capsule endoscope evaluation. Risk factors for small-bowel mucosal breaks. Of the 198 patients (141 male; mean age 71.9 years) included in the final analysis, 114 (57.6%) had at least 1 mucosal break. Multivariate analysis identified protein pump inhibitor (PPI) use (OR 2.04; 95% confidence interval [CI], 1.05-3.97) and use of enteric-coated aspirin (OR 4.05; 95% CI, 1.49-11.0) as independent risk factors for the presence of mucosal breaks. Cross-sectional study. PPI use appears to increase the risk of small-bowel injury in patients who take continuous low-dose aspirin. Clinicians should be aware of this effect of PPIs; new strategies are needed to treat aspirin-induced gastroenteropathy.
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