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5% CI ). 2. In a propensity matching study of 604 registry patients with AF undergoing PCI, OAC prescription at discharge was associated with a lower rate of major adverse cardiovascular events (HR , 95% CI ) and allcause mortality (, 95% CI ) . 3. In a retrospective study 239 patients on OAC (AF was the indication for OAC in the majority) who underwent PCI, patients who were on DAPT, pared to patients on TOAT, had a significantly higher rate of stroke ( versus percent) and ST ( versus percent), respectively, at 12 months. As expected, patients treated with aspirin and warfarin had a higher incidence of ST pared to those on TOAT ( versus percent). 4. Two studies have shown no significant difference in major adverse cardiovascular outes. In the first, of the 515 patients on OAC who underwent PCI with drugeluting stents (DES), 60 percent were d