Objective
The real-world status of proton pump inhibitor (PPI) administration in patients with acute coronary syndrome (ACS) and atrial fibrillation (AF) is largely unknown. This study aimed to analyze the prescription patterns of PPI in Chinese patients with ACS and nonvalvular AF.
Methods
This single-center, retrospective, cross-sectional study included patients with ACS and AF who were hospitalized in the Department of Cardiovascular Center at Beijing Tongren Hospital from January 2010 to December 2018. All patients were categorized into two groups (PPI and non-PPI groups) based on PPI usage, and factors influencing PPI use were analyzed. The appropriateness of PPIs prescriptions was evaluated according to clinical guidelines.
Results
This study included 531 patients with ACS and AF. Patients receiving PPIs were more likely to have non-ST-segment elevation myocardial infarction (NSTEMI) (27.6% vs. 19.5%, p = 0.028), STEMI (33.9% vs. 16.2%, p < 0.001), paroxysmal AF (65.0% vs. 50.5%, p < 0.001), gastrointestinal disorders (59.4% vs. 7.9%, p < 0.001), and lower systolic blood pressure (125mmHg vs. 130mmHg, p = 0.008) as well as underwent percutaneous coronary intervention or coronary artery bypass graft or fibrinolytic (44.1% vs. 35.4%, p = 0.040) and catheter ablation (9.1% vs. 1.4%, p < 0.001), they were frequently treated with oral anticoagulants (30.7% vs. 19.9%, p = 0.003). 249 (46.9%) patients did not adhere to guideline recommendations at discharge.
Conclusions
The study revealed that 47.8% of patients with AF and ACS were prescribed PPI, while 46.9% of patients did not adhere to guideline. It is likely that interventions will be necessary to enhance adherence to guidelines to reduce the risk of GIB.