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Proton Pump Inhibitors Increase the Risk of Early Biliary Infection After Placement of Percutaneous Transhepatic
Sheng Xu1, Xue-Jun Zhang2, Li-Jun Guan3
1Department of Minimally Invasive Tumor Therapies Center, Beijing Hospital, National Center of Gerontology, Beijing, China; Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
Purpose:
To investigate the association between the use of proton pump inhibitors (PPIs) and the risk of early biliary infection (EBI) after the placement of percutaneous transhepatic biliary stents (PTBS) in patients with unresectable malignant biliary obstruction (MBO).
Materials And Methods:
A total of 136 patients with unresectable MBO (82 males and 54 females) treated with PTBS were included in this multicenter retrospective study. PPIs were prescribed to MBO patients with dyspepsia. The risk factors for EBI were identified by univariate and multivariate analyses. The association between the use of PPIs and EBI was assessed by logistic analyses.
Results:
A total of 72 (53%) patients were regular users of PPIs, and 33 (24%) patients developed EBI after PTBS. Univariate and multivariate analyses revealed that diabetes (hazard ratio [HR], 20.3; 95% confidence interval [CI], 5.6-72.9; P <.001), biliary stones (HR, 20.3; 95% CI, 5.6-72.9; P <.001) and PPIs (HR, 4.0; 95% CI, 1.2-12.8; P =.020) were risk factors for EBI. Further analyses of the correlation between the duration of PPIs use and EBI demonstrated that a prolonged use of PPIs significantly increased the risk of EBI (PPIs for <15 days vs 15-30 days: HR, 10.2; 95% CI, 3.1-33.3; P <.001; and PPIs <15 days vs ≥30 days; HR, 20.4; 95% CI, 2.2-192.3; P <.001).
Conclusion:
The use of PPIs increased the risk of EBI after PTBS in patients with unresectable MBO. Furthermore, the risk of EBI increased with a prolonged duration of PPIs use.
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