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- W2169248907 abstract "The aim of this study is to evaluate the mid-term clinical and functional outcomes of maze surgery in symptomatic refractory lone atrial fibrillation (AF) patients.Between March 2008 and January 2013, 39 highly symptomatic patients [mean age 51 ± 10 (mean ± standard deviation); 95% CI, European Heart Rhythm Association class III-IV] underwent maze surgery for lone AF. Biatrial ablations were performed with bipolar radiofrequency and cryoenergy, according to a maze III lesion set (modified by omitting the intercaval line in 5 of 39 patients). Mean ejection fraction was 51 ± 9% (range 17-60), <45% in 10 patients (26%). Seventeen of 39 patients (44%) had persistent, 22 of 39 patients (56%) long-standing persistent AF, and 35 of 39 patients (90%) had previous transvenous ablations (median = 2; range 0-8). No patient had concomitant structural heart disease.A minimally invasive approach was adopted in 22 patients (56%). Major complications were 1 mediastinitis, 1 re-exploration for bleeding and 2 pacemaker (5%) implantation. At a mean follow-up of 29.4 ± 14.2 months, freedom from arrhythmias was 92 and 93% at 24 and 36 months, respectively. Freedom without antiarrhythmic drugs was 75 and 85% at 24 and 36 months, respectively. Ejection fraction normalized in all cases, from 51.3 ± 9% to 61.1 ± 3% (P < 0.001) overall, and from 37.0 ± 10% to 60.3 ± 3% (P < 0.001) when ≤ 45% preoperatively. AF-related symptoms score decreased to class I in 36 patients (93%). No early or late stroke occurred.Within a dedicated AF centre, maze surgery grants excellent outcomes, with symptoms relief and negligible risk. It provides a complete reversal of arrhythmia-related myocardial dysfunction and is therefore a convenient alternative to His bundle ablation and lifelong pacemaker dependency in symptomatic refractory patients." @default.
- W2169248907 created "2016-06-24" @default.
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- W2169248907 date "2014-03-05" @default.
- W2169248907 modified "2023-10-15" @default.
- W2169248907 title "Maze surgery normalizes left ventricular function in patients with persistent lone atrial fibrillation†" @default.
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- W2169248907 doi "https://doi.org/10.1093/ejcts/ezu034" @default.
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