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Left atrial occlusion devices are attractive because they can negate the need for anticoagulation in patients with atrial fibrillation (AF). Six randomized trials have compared left atrial appendage closure (LAAC) with anticoagulation (warfarin in 2 and direct oral anticoagulants [DOACs] in 4); now, a meta-analysis evaluated these trials (7028 patients in total).
Overall stroke rates were similar between the two arms (4.0% in LAAC and 3.3% in anticoagulation during 3–5 years of follow-up).
However, ischemic stroke was significantly more common with LAAC (3.4% vs. 2.3%; odds ratio, 1.4).
Not surprisingly, nonprocedural bleeding was lower with LAAC; however, procedure-related bleeding was not analyzed.
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In these patients w…