RT Journal Article SR Electronic A1 Buckley, Rita T1 Watchman Implantation without Warfarin Transition is Feasible in Patients with Atrial Fibrillation JF MD Conference Express YR 2012 FD SAGE Publications VO 12 IS 6 SP 9 OP 9 DO 10.1177/155989771206004 UL http://mdc.sagepub.com/content/12/6/9.1.abstract AB The first formal analysis of the ASA-Plavix (ASAP) Registry found that the Watchman left atrial appendage closure device can be used safely and effectively in patients with atrial fibrillation for whom anticoagulants are contraindicated.