Key result
Left atrial appendage closure fails to match DOACs for stroke prevention despite reducing nonmajor bleeding.
Why the study?
A comprehensive randomized comparison of left atrial appendage closure versus direct oral anticoagulant therapy in atrial fibrillation patients was lacking to evaluate efficacy and safety trade-offs.
Relative Risk: 1.19 (95% CI 0.9–1.58)
Absolute Event Rate: 3.5% vs 2.9%
Failed to establish stroke equivalence with DOACs; reinforces consensus preference for DOACs while leaving open LAA closure's role in observational data.
[Figure: see text]
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Boyle et al. (2026) conducted an editorial in Atrial Fibrillation (n=5,890). Left atrial appendage closure (LAAC) vs. Direct oral anticoagulants (DOAC) was evaluated on Overall stroke (RR 1.19, 95% CI 0.90-1.58). Left atrial appendage closure yielded an overall stroke relative risk of 1.19 compared to DOAC therapy, failing to establish equivalent stroke protection, though it significantly reduced nonmajor bleeding.
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