
Keywords: TTE، اکوکاردیوگرافی transthoracic; AF, atrial fibrillation; HF, heart failure; LAP, left atrial pressure; RFA, radiofrequency catheter ablation; TTE, transthoracic echocardiography; LA, left atrium; LAA, left atrial area; LAV, left atrial volume; LAVi, indexed left atrial volume; E, early