4.3 Article

Proton-pump inhibitor use and the risk of peritoneal dialysis associated peritonitis

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INTERNAL MEDICINE JOURNAL
卷 53, 期 3, 页码 397-403

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WILEY
DOI: 10.1111/imj.15601

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proton pump inhibitor; peritoneal dialysis; peritonitis; renovascular disease; urea

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This study aims to assess whether PPI use is associated with an increased risk of peritonitis in PD patients. Retrospective analysis showed that the proportion of patients with peritonitis was 57% in the PPI group, compared to 31% in the non-PPI group.
Background The use of proton-pump inhibitors (PPI) has been associated with an increased risk of developing spontaneous bacterial peritonitis in patients with cirrhosis. Whether PPI use confers a similar risk in developing peritonitis in peritoneal dialysis (PD) patients remains unclear. Aim To assess whether PPI use is associated with an increased risk of PD peritonitis. Methods Patients on PD were retrospectively identified. Data such as PPI use during PD, underlying diagnoses, comorbidities, and baseline serum tests were collected. Univariable and multivariable analysis was conducted using logistic regression to assess whether PPI use and other factors were associated with PD peritonitis. Results Fifty-seven patients were identified with a median (interquartile range (IQR)) age of 65.0 (51.5-74.0) years. The median (IQR) time on PD was 29.0 (17.5-45.0) months. Twenty-eight patients were on a PPI during PD. Fifty-seven percent of the PPI group went on to develop peritonitis, compared with 31% of patients without PPI exposure (odds ratio (OR) = 2.96; 95% confidence interval (CI): 1.00, 8.78; P = 0.050). Months on PD (OR = 1.03; 95% CI: 1.00, 1.06; P = 0.026), serum urea (OR = 0.88; 95% CI: 0.80, 0.97; P = 0.017), congestive cardiac failure (OR = 5.44; 95% CI: 1.29, 23.00; P = 0.021) and renovascular disease (OR = 14.59; 95% CI: 1.68, 126.67; P = 0.015) were identified as possible risk factors for peritonitis on univariable analysis. Following adjustment for covariates, serum urea, but not PPI use, was associated with PD peritonitis (OR = 0.87; 95% CI: 0.78, 0.98; P = 0.020). Conclusion PPI use during PD was not associated with peritonitis. Due to the small number of patients and the limited number of studies investigating the effect of PPI use on PD peritonitis, further research is needed.

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