Clinical Cardiology
Association of Transition Zone Burden With Recurrence in Elderly Patients With Paroxysmal Atrial Fibrillation Without Low‐Voltage Areas
ABSTRACT Background Transition zone (TZ) may serve as a potential substrate for atrial fibrillation (AF). This study aims to investigate the relationship of TZ burden with left atrial conduction velocity (LACV) and recurrence after circumferential pulmonary vein isolation (CPVI) in elderly patients with paroxysmal AF without low‐voltage areas (LVA). Methods Patients with paroxysmal AF without LVA were categorized into three groups based on the TZ burden (< 5%, 5%–15% and > 15%). TZs were defined as regions with bip …