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Left Atrial Appendage Closure in Patients with Atrial Fibrillation and Previous Intracerebral Hemorrhage.

BACKGROUND: Percutaneous left atrial appendage closure (LAAC) may be considered in patients with atrial fibrillation and contraindication for long-term anticoagulation. This study aimed to assess the safety and efficacy of LAAC followed by single antiplatelet therapy in patients with atrial fibrillation and previous spontaneous intracerebral hemorrhage (ICH).

METHODS: In this explorative, prospective, single-center study, consecutive patients who underwent LAAC because of previous spontaneous ICH over a period of 4 years were analyzed. Risks of ischemic strokes and hemorrhagic complications were estimated using the CHA2DS2-VASc and HAS-BLED scores, respectively. Single antiplatelet therapy was given for at least 6 months post implantation. Clinical follow-up included cardiological evaluations at 1, 3, 6, and 12 months, and neurological evaluations at 3 and 12 months.

RESULTS: A total of 46 patients underwent LAAC with a mean follow-up of 12 ± 7 months. The observed annual rate of ischemic stroke was 4.35% compared with an expected rate of 7.23% according to the mean risk of the population based on CHA2DS2-VASc score, which translated into a 40% risk reduction. The observed annual rate of major bleeding was 4.35% compared with an expected rate of 8.05% according to the mean risk of the population based on HAS-BLED score, which translated into a 46% risk reduction.

CONCLUSIONS: LAAC followed by single antiplatelet therapy is feasible as an alternative to oral anticoagulation in high-risk patients with previous ICH, with an acceptable periprocedural risk. Longer follow-up in a larger number of patients will be needed to establish the effectiveness of LAAC relative to direct oral anticoagulants.

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