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- W3156658851 abstract "LAAO has been an alternative therapy to oral anticoagulants (OACs) for stroke prophylaxis in patients with nonvalvular atrial fibrillation (NVAF) with elevated CHA2DS2-Vasc score, but the long-term outcomes of LAAO and its impacts on cardiac electrical and mechanical remodeling remain to be learned. We aimed to describe the impact of left atrial appendage occlusion (LAAO) on atrial remodeling and cardiovascular outcomes within 5-year follow-up.A total of 107 patients with nonvalvular atrial fibrillation (NVAF) undergoing LAAO in the Shanghai Tenth People's Hospital between January 2014 and July 2017 were included. All participants were followed for ECG, transthoracic echocardiography (TTE), and clinical outcomes (including cardiovascular death, heart failure, ischemic stroke/systemic embolism, and pericardial effusion) at 6 and 12 months, and thereafter every 12 months after LAAO discharge until 5 years.After LAAO, the left atrial diameter significantly increased at 6 months (48.6 ± 6.7 vs 46.5 ± 7.0 mm); heart rate decreased immediately after the procedure (78.5 ± 14.7 vs 85.3 ± 21.7 bpm) when compared with the pre-procedure level. The QTc interval prolongated to the highest value of 460.7 ± 46.8 ms at 6 months (pre-procedure level of 433.7±49.0 ms). All these changes return to the pre-procedure level within the follow-up. For clinical outcomes, 51 patients suffered the composite of cardiovascular death (n=4, 3.7%), heart failure (n=25, 23.4%), ischemic stroke/systemic embolism (n=22, 20.6%), and pericardial effusion (n=26, 26.2%).LAAO did not change ECG or TTE characteristics and nonprocedure-related pericardial effusion is common during long-term follow-up. Further studies are warranted to investigate the optimal time frame of anticoagulation in patients undergoing LAAO." @default.
- W3156658851 created "2021-04-26" @default.
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- W3156658851 date "2021-04-01" @default.
- W3156658851 modified "2023-10-05" @default.
- W3156658851 title "Five-Year Outcomes and Cardiac Remodeling Following Left Atrial Appendage Occlusion" @default.
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- W3156658851 doi "https://doi.org/10.2147/cia.s296639" @default.
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