Proton Pump Inhibitor Exposure and Acute Myocardial Infarction Risk: A Nested Cohort Study
Abstract
BACKGROUND: Association of proton pump inhibitor (PPI) exposure with acute myocardial infarction (AMI) risk in the Caucasian population remains under debate. Here, we clarified whether PPI exposure might be related to an increased new-onset AMI risk in an Asian population.
METHOD: Data of 27,624 patients with PPI exposure followed by new-onset AMI development were extracted from Taiwan National Health Insurance Research Database and age- and sex-matched with 27,624 controls with PPIs exposure, but without subsequent AMI and ischemic heart disease development. The amount of PPI exposure was calculated based on the cumulative defined daily dose (cDDD) during the follow-up period. Subsequent AMI risk was measured after adjustments of demographic data and indication of PPI use.
RESULTS: AMI risk increased with an increase in PPI exposure: with cDDD ≤ 30 as the reference, the odds ratios (95% confidence intervals) for cDDDs of > 365 was 1.56 (1.45-1.69). All five PPI categories, including pantoprazole, lansoprazole, omeprazole, esomeprazole, and rabeprazole, increased AMI risk.
CONCLUSIONS: Our study demonstrated long-term or high-dose PPI exposure associated with increased new-onset AMI risk in patients without a history of any ischemic heart disease. The underlying mechanisms of PPI-related cardiovascular effects deserve more investigation.
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 27,624 participants or records.
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