OBJECTIVES: This study was intended to evaluate the impact of adding the left atrial appendage (LAA) closure system (LARIAT) procedure to conventional atrial fibrillation (AF) ablation in patients with persistent AF. BACKGROUND: Percutaneous endoepicardial LARIAT may result in both mechanical and electrical exclusion of the LAA and aid in improving the outcomes of catheter ablation by eradicating the LAA triggers and altering the substrate. METHODS: We performed a prospective observational study of patients with persistent AF referred for AF ablation. Patients underwent LAA ligation with LARIAT procedure before undergoing AF ablation (LARIAT group). Age- and sex-matched persistent AF patients undergoing AF ablation during the same time frame were included in the control group (ablation-only group). RESULTS: A total of 138 patients were included in the study, with 69 patients in the LARIAT group. The mean age of the population was 67 ± 10 years, with 96 (70%) men. Left atrial (LA) size, CHADS2, CHADSVasc, and HAS-BLED scores were higher in the LARIAT group when compared with the ablation-only group. There were no differences in the type of lesions during AF ablation between the groups. The primary outcome of freedom from AF at 1 year off antiarrhythmic therapy after 1 ablation procedure was higher in the LARIAT group (45 [65%] vs. 27 [39%]; p = 0.002). More patients in the ablation-only group underwent repeat ablation because of AF recurrence (11 [16%] vs. 23 [33%]; p = 0.018). CONCLUSIONS: In patients with persistent AF, addition of LAA ligation with the LARIAT device to conventional ablation appears to improve the success rate of AF ablation.
OBJECTIVES: This study was intended to evaluate the impact of adding the left atrial appendage (LAA) closure system (LARIAT) procedure to conventional atrial fibrillation (AF) ablation in patients with persistent AF. BACKGROUND: Percutaneous endoepicardial LARIAT may result in both mechanical and electrical exclusion of the LAA and aid in improving the outcomes of catheter ablation by eradicating the LAA triggers and altering the substrate. METHODS: We performed a prospective observational study of patients with persistent AF referred for AF ablation. Patients underwent LAA ligation with LARIAT procedure before undergoing AF ablation (LARIAT group). Age- and sex-matched persistent AFpatients undergoing AF ablation during the same time frame were included in the control group (ablation-only group). RESULTS: A total of 138 patients were included in the study, with 69 patients in the LARIAT group. The mean age of the population was 67 ± 10 years, with 96 (70%) men. Left atrial (LA) size, CHADS2, CHADSVasc, and HAS-BLED scores were higher in the LARIAT group when compared with the ablation-only group. There were no differences in the type of lesions during AF ablation between the groups. The primary outcome of freedom from AF at 1 year off antiarrhythmic therapy after 1 ablation procedure was higher in the LARIAT group (45 [65%] vs. 27 [39%]; p = 0.002). More patients in the ablation-only group underwent repeat ablation because of AF recurrence (11 [16%] vs. 23 [33%]; p = 0.018). CONCLUSIONS: In patients with persistent AF, addition of LAA ligation with the LARIAT device to conventional ablation appears to improve the success rate of AF ablation.
Authors: Thomas Fink; Michael Schlüter; Roland Richard Tilz; Christian-Hendrik Heeger; Christine Lemes; Tilmann Maurer; Bruno Reissmann; Laura Rottner; Francesco Santoro; Shibu Mathew; Andreas Rillig; Feifan Ouyang; Karl-Heinz Kuck; Andreas Metzner Journal: Clin Res Cardiol Date: 2018-06-07 Impact factor: 5.460
Authors: Georg Gussak; Anna Pfenniger; Lisa Wren; Mehul Gilani; Wenwei Zhang; Shin Yoo; David A Johnson; Amy Burrell; Brandon Benefield; Gabriel Knight; Bradley P Knight; Rod Passman; Jeffrey J Goldberger; Gary Aistrup; J Andrew Wasserstrom; Yohannes Shiferaw; Rishi Arora Journal: JCI Insight Date: 2019-10-17