• J. Thorac. Cardiovasc. Surg. · Oct 2022

    Effects of left atrial appendage surgical treatment on the incidence of ischemic cerebrovascular accidents in patients with atrial fibrillation undergoing cardiac surgery.

    • Yabing Duan, Haitao Xu, Baotong Li, Xin Yuan, and Hansong Sun.
    • Department of Adult Cardiac Surgery, National Center for Cardiovascular Disease and Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, P.R. China.
    • J. Thorac. Cardiovasc. Surg. 2022 Oct 1; 164 (4): 1106-1116.

    BackgroundWe sought to assess different surgical methods for left atrial appendage treatment to determine whether any could reduce the incidence of atrial fibrillation-related long-term ischemic cerebrovascular accidents.MethodsA total of 1243 patients were treated with left atrial appendage removal, and 107 patients (8.6%) were lost to follow-up and excluded. The primary outcome was the long-term incidence of ischemic cerebrovascular events (ie, ischemic stroke, excluding transient ischemic attack) and all-cause mortality.ResultsOf the 1136 patients, 37 (3.3%) had ischemic cerebrovascular events. The 1-year, 5-year, and 10-year freedoms from long-term ischemic cerebrovascular events of the left atrial appendage extracardiac ligation group were 99.7%, 94.0%, and 90.8%, respectively. The 1-year, 5-year, and 10-year survivals of the left atrial appendage intracardiac suture group were 99.7%, 94.6%, and 93.6%, respectively. There was a significant difference between the left atrial appendage extracardiac ligation group and the left atrial appendage excision group (P = .041). Seventeen patients (4.6%) had long-term ischemic cerebrovascular events in the left atrial appendage extracardiac ligation group (1.1% per year), 14 patients (3.5%) in the left atrial appendage intracardiac suture group (0.9% per year), and 6 patients (1.7%) in the left atrial appendage excision group (0.44% per year). Left atrial appendage excision can reduce the occurrence of long-term thrombotic stroke compared with left atrial appendage extracardiac ligation (95% confidence interval, 1.09-9.26; P = .035).ConclusionsFor patients with atrial fibrillation, the removal of the left atrial appendage can effectively prevent stroke caused by atrial fibrillation.Copyright © 2021. Published by Elsevier Inc.

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