Arrhythmia-Induced Cardiomyopathy: Predictors of Improvement in Left Ventricular Systolic Function After Catheter Ablation

Background: Arrhythmia-induced cardiomyopathy (AIC) is a relatively common yet poorly understood cardiac condition that occurs when arrhythmias cause left ventricular systolic dysfunction, which can be reversed with the resolution of the arrhythmia. Catheter ablation serves as a cornerstone treatment for eliminating the arrhythmic trigger. However, the variability in left ventricular recovery following ablation highlights the need to identify reliable predictors of reverse remodeling. Methods: This review explores key studies on AIC patients undergoing catheter ablation, primarily derived from observational cohorts, to identify significant predictors of left ventricular function recovery. Results: While echocardiography and cardiac magnetic resonance imaging remain the primary diagnostic modalities, additional insights have emerged from electrocardiograms and laboratory biomarkers. Despite these advancements, a comprehensive framework for identifying optimal candidates for ablation remains lacking. Conclusions: By synthesizing existing evidence, this review aims to pinpoint the most robust predictors of systolic recovery in AIC patients following ablation.