Influence of Left Atrium Volume Index on effectiveness of Thoracoscopic Ablation in the Treatment of Atrial Fibrillation

Research objective: establish the impact of Left Atrium Volume Index (LAVI) on effectiveness Thoracoscopic Ablation (TSA) in Treatment Atrial Fibrillation (AF) and define risk factors for manifestation supraventricular arrhythmias long-term follow-up results Methods. Prospective cohort study 121 patients with AF (from 2018 to 2021) who performed TSA. The were divided into two groups: increased LAVI (group I), normal less than 34 ml/m 2 II). Results. According echocardiography, mean was 45.48 ± 9.3 28.59 4.13 groups I II, respectively (p = 0.012). value left ventricular ejection fraction (LVEF) according Teicholz group 61.62 7.041%, II 63.57 6.16% 0.8). Spearman's сorrelation analysis showed relationship between LVEF before surgery period, that is agreed world literature data about contribution atrial (LA) (LV) function. our study, only < a factor arrhythmia after Effectiveness TSA 77.8%, lower – 88.9%. 3 months TSA, 20 (17%) required catheter ablations (CA), mainly group. Conclusions. an increase significantly reduces period by 11.1% compared . That are conform other previously submitted works.