• Heart and vessels · Nov 2019

    Efficacy and safety of left atrial appendage closure in non-valvular atrial fibrillation in patients over 75 years.

    • Jiangtao Yu, Hongwu Chen, Felix Post, Manuela Muenzel, Thorsten Keil, Cody R Hou, Mingzhong Zhao, Zhaohui Meng, and Lisheng Jiang.
    • Department of Cardiology, Helmut-G.-Walther-Klinikum, Lichtenfels, Germany. dr.jt.yu@gmail.com.
    • Heart Vessels. 2019 Nov 1; 34 (11): 1858-1865.

    AbstractPercutaneous left atrial appendage closure (LAAC) may decrease risks of stroke and bleeding in elderly patients with non-valvular atrial fibrillation (NVAF), but it is still lacking of evidence. The present study aimed at evaluating the efficacy and safety of LAAC in patients with NVAF over 75 years. 351 patients with NVAF who underwent LAAC were retrospectively analyzed on the LAAC procedure characteristics and the clinical follow-up according to age (age ≥ 75 years or < 75 years). Out of the 351 patients, LAA were successfully closed in 347 patients (98.9%), including 341 with Watchman (WM) device and 6 with Amplatzer cardiac plug (ACP) device because of the WM device-incompatible anatomy. There were no significant differences in total LAAC success rate and procedure-related major complications within 7 days between the groups aged ≥ 75 years and aged < 75 years. After a nearly 2-year follow-up, there was an increased trend of major bleedings and all bleedings in the group aged ≥ 75 years, but there were no significant differences between both groups in all-cause death, cardiovascular death, stroke/TIA/system embolism, device thrombus and device gap (> 5 mm). Kaplan-Meier analysis revealed that the relative risk of annual thromboembolic events between the observed values and the expected ones based on CHA2DS2-VASc score in the group aged ≥ 75 years decreased more obviously (61.9% vs. 54.3%); however, the relative risk of bleedings between the observed values and the expected ones based on HAS-BLED score in the younger group aged < 75 years decreased more significantly (59.6% vs. 29.2%). LAAC in patients with advanced age (age ≥ 75 years), has the same level of efficacy, safety and feasibility as in the younger patients aged < 75 years. Thus, LAAC may be an ideal choice to prevent stroke in NVAF patients with advanced age.

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