Accessory pathway‐related left ventricular wall motion abnormality and the effects of radiofrequency catheter ablation in patients with Wolff‐Parkinson‐White syndrome

Introduction The objective of the current study was to elucidate the effects of the accessory pathways (APs) on the left ventricular (LV) wall motion and radiofrequency catheter ablation (RFCA) on AP‐related regional wall motion abnormality (RWMA) in patients with Wolff‐Parkinson‐White (WPW) syndrome. Methods and Results We included 348 consecutive patients (age, 37.6 ± 17.3 years; men, 58.3%) with WPW syndrome who underwent RFCA for AP. We analyzed electrocardiographic data, the AP location, LV ejection fraction (LVEF), and RWMA patterns and their changes after RFCA. The locations of APs were right, septal, and left in 78, 94, and 176 patients, respectively. RWMA at the AP location (44.9%, 51.1%, and 17.6%, respectively; P