Electrocardiographic left ventricular hypertrophy predicts recurrence of atrial arrhythmias after catheter ablation of paroxysmal atrial fibrillation

摘要

Background Left ventricular hypertrophy (LVH) is an independent predictor of new‐onset atrial fibrillation. Whether LVH can predict the recurrence of arrhythmia after radiofrequency catheter ablation (RFCA) in patients with paroxysmal atrial fibrillation (PAF) remains unclear. Hypothesis PAF patients with baseline‐electrocardiographic LVH has a higher recurrence rate after RFCA procedure compared with those without LVH. Methods A total of 436 patients with PAF undergoing first RFCA were consecutively enrolled and clustered into 2 groups based on electrocardiogram (ECG) findings: non‐ECG LVH (218 patients) and ECG LVH (218 patients). LVH was characterized by the Romhilt‐Estes point score system; the score?≥5points were defined as LVH. Results At 42?months' (interquartile range, 18.0–60.0?months) follow‐up after RFCA, 151 (69.3%) patients in the non‐ECG LVH group and 108 (49.5%) patients in the ECG LVH group maintained sinus rhythm without using antiarrhythmic drugs ( P Conclusions The presence of ECG LVH was a strong and independent predictor of recurrence in patients with PAF following RFCA.