Minimally invasive epicardial surgical left atrial appendage exclusion for atrial fibrillation patients at high risk for stroke and for bleeding.

Autor: Rose DZ; University of South Florida Morsani College of Medicine, Tampa, Florida. Electronic address: drose1@usf.edu., DiGiorgi P; Lee Health, Fort Meyers, Florida., Ramlawi B; Lankenau Heart Institute, Main Line Health, Philadelphia, Philadelphia., Pulungan Z; Inovalon, Bowie, Maryland., Teigland C; Inovalon, Bowie, Maryland., Calkins H; Johns Hopkins Medicine, Baltimore, Maryland.
Jazyk: angličtina
Zdroj: Heart rhythm [Heart Rhythm] 2024 Jun; Vol. 21 (6), pp. 771-779. Date of Electronic Publication: 2024 Jan 29.
DOI: 10.1016/j.hrthm.2024.01.046
Abstrakt: Background: Atrial fibrillation (AF) patients at high risk for stroke and for bleeding may be unsuitable for either oral anticoagulation or endocardial left atrial appendage (LAA) occlusion. However, minimally invasive, epicardial left atrial appendage exclusion (LAAE) may be an option.
Objective: The purpose of this study was to evaluate outcomes of LAAE in high-risk AF patients not receiving oral anticoagulation.
Methods: A retrospective analysis of Medicare claims data was conducted to evaluate thromboembolic events in AF patients who underwent LAAE compared to a 1:4 propensity score-matched group of patients who did not receive LAAE (control). Neither group was receiving any oral anticoagulation at baseline or follow-up. Fine-Gray models estimated hazard ratios and evaluated between-group differences. Bootstrapping was applied to generate 95% confidence intervals (CIs).
Results: The LAAE group (n = 243) was 61% male (mean age 75 years). AF was nonparoxysmal in 70% (mean CHA 2 DS 2 -VASc score 5.4; mean HAS-BLED score 4.2). The matched control group (n = 972) had statistically similar characteristics. One-year adjusted estimates of thromboembolic events were 7.3% (95% CI 4.3%-11.1%) in the LAAE group and 12.1% (95% CI 9.5%-14.8%) in the control group. Absolute risk reduction was 4.8% (95% CI 0.6%-8.9%; P = .028). Adjusted hazard ratio for thromboembolic events for LAAE vs non-LAAE was 0.672 (95% CI 0.394-1.146).
Conclusion: In AF patients not taking oral anticoagulation who are at high risk for stroke and for bleeding, minimally invasive, thoracoscopic, epicardial LAAE was associated with a lower rate of thromboembolic events.
Competing Interests: Disclosures Dr Rose reports receiving honoraria from AtriCure, Boston Scientific, Cheisi-USA, CSL-Behring, Medtronic, and Viz. Dr DiGiorgi reports receiving consulting fees from AtriCure. Dr Ramlawi reports being a consultant and advisory board member of AtriCure, Boston Scientific, Corcym, Medtronic, and Shockwave Medical. Dr Pulungan and Dr Teigland are employees of Inovalon. Dr Calkins reports receiving lecture honoraria from Abbott, AtriCure, and Boston Scientific.
(Copyright © 2024 Heart Rhythm Society. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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