Left atrial contractile strain predicts recurrence of atrial tachyarrhythmia after catheter ablation

• DOI: 10.1016/j.ijcard.2022.04.056
• Publication Date: 2022-04-23T00:34:54Z
• Authors: Anne Bjerg Nielsen; Kristoffer Grundt...; Kasper Djernæs; Raphael Hauser; Raúl San José Est...; Samuel Kiil Sørensen; Martin Huth Ruwald; Morten Lock Hansen; René Husted Worck; Arne Johannessen; Jim Hansen; Tor Biering-Sørensen
• Keywords: Atrial tachycardia; Radiofrequency catheter ablation; Strain (injury)

Despite improvement in treatment strategies of atrial fibrillation (AF), a considerable number patients still experience recurrence tachyarrhythmia (ATA) following catheter ablation (CA). This study aimed to investigate the prognostic value left (LA) deformation analysis large group undergoing CA for AF.This included 678 with AF. Echocardiography including two-dimensional speckle tracking echocardiography (2DSTE) was performed all prior CA. Logistic regression used assess association between ATA and LA strain during reservoir phase (LASr), contraction (LASct), conduit (LAScd).During one-year follow-up, 274 (40%) experienced recurrence. Median age population 63.2 years (IQR: 55.5, 69.5) 485 (72%) were male. Patients had lower LASr (22.6% vs. 25.1%, p = 0.001) LASct (10.7% 12.4%, < 0.001). No difference LAScd observed. After adjusting potential clinical echocardiographic confounders (OR 1.04, CI95% [1.01; 1.07], 0.015, per 1% decrease) 1.06, [1.02; 1.11], 0.007, remained independent predictors However, normal-sized (LA volume index<34 mL/m2), only an predictor 1.07, 1.12], 0.012, decrease).In AF, by 2DSTE could be use risk stratification practice regarding recurrence, even LA.