Temporal trends in prevalence and outcomes of atrial fibrillation in patients undergoing percutaneous coronary intervention

Background Atrial fibrillation (AF) is the most common arrhythmia in patients undergoing percutaneous coronary intervention (PCI). Hypothesis Large administrative data may provide further insight into temporal trends in the prevalence and burden of AF in patients who underwent PCI. Methods Using the National Inpatient Sample database in the U.S., AF patients ≥18 years who underwent PCI between 2005 and 2014 and were identified by the International Classification of Diseases, ninth revision, Clinical Modification, were examined. In‐hospital mortality, morbidity, resource use, and medical costs were evaluated in crude and propensity‐matched analyses. Results Among an estimated 6 272 232 hospitalizations, of patients undergoing PCI, AF prevalence was 9.9% and steadily increased from 8.6% to 12.0% between 2005 and 2014 (P