
A study identified predictors of enhanced ejection fraction in patients with persistent atrial fibrillation (PeAF) complicated by heart failure (HF) undergoing catheter ablation (CA). Between January 2019 and March 2023, 435 PeAF patients who underwent CA. The study assessed 80 patients with left ventricular systolic dysfunction (LVEF < 50%) using transthoracic echocardiography (TTE) before CA. Patients were categorized post-CA based on LVEF improvement at 6 months. Factors such as left ventricular end-diastolic diameter (LVDd) and low voltage zones in the left atrium were identified as significant predictors. The study found LVDd < 59 mm and the absence of low voltage zones in the left atrium as reliable indicators for LVEF improvement post-CA.
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