The Predictive Value of the Left Atrial Kinetic Energy for Atrial Fibrillation Recurrence

Introduction: Determining which patients will experience recurrence of atrial fibrillation (AF) is crucial for treatment modification. Aim : This study aimed to investigate the value of left atrial kinetic energy (LAKE) in atrial fibrillation recurrence Methods: A total of 120 consecutive patients who achieved sinus rhythm with electrical direct current cardioversion and met the inclusion criteria were included in the study. TTE and LAKE values were calculated on the first day after cardioversion. Rhythm control was performed with 12-lead electrocardiography in the first month follow-up. LAKE values calculated using TTE was compared between two groups of patients – those who remained in sinus rhythm and those who developed AF. Results: While 81 (67.5%) patients were in sinus rhythm at one month, AF recurrence was detected in 39 (32.5%) patients. In the AF group, while AF duration, cardioversion energy, number of diabetic patients, left atrial (LA) diameter, LA pre A volume, LA minimum volume, and pulmonary artery pressure values were found to be significantly higher than those in the SR group, mitral A velocity and LAKE values were significantly lower. In multivariate regression analysis, AF duration (OR: 1.55 [CI: 95%; 1.23–1.95]; p < 0.001), LA diameter (OR: 1.36 [CI: 95%; 1.11–1.66]; p = 0.003) and LAKE (OR: 0.96 [CI: 95%: 0.94–0.99]; p = 0.008) were determined to be independent predictors of AF recurrence at one month. Conclusions: LA diameter, AF duration, and LAKE were found to be significant predictors of AF recurrence after cardioversion. NCT05231967