Antithrombotic Strategy Variability In ATrial Fibrillation and Obstructive Coronary Disease Revascularized With PCI

The purpose of this observational registry was to compare the safety and efficacy of an antithrombotic regimen comprising one single antiplatelet agent plus an oral anti-thrombotic versus those consisting of DAPT alone or DAPT plus oral antithrombotic therapy. This registry assessed whether the antithrombotic therapy intensity would vary positively with physician perceived ischemic risk at the time of percutaneous coronary intervention (PCI), and whether an inverse association would be observed with perceived bleeding risk. This study also evaluated the physician use of objective benefit-risk assessment scores and their influence on prescription of antithrombotic therapy in atrial fibrillation (AF) patients undergoing PCI. Additionally the study investigated whether patient perceived relevance and accessibility of anti-platelet and anticoagulant treatment regiments would predict treatment adherence and whether non-adherence would independently influence outcome. Approximately 514 subjects with non-valvular AF undergoing all-comer PCI were enrolled at 11 sites in North America and Europe. Follow-up was done via telephone by trained research coordinators at each participating site at 30 days, 6 months and 12 months.