Introduction:
Pulmonary vein (PV) isolation using cryoballoon ablation (CBA) is a
common therapy for patients with drug refractory paroxysmal atrial
fibrillation (PAF). However, initial CBA is successful in only 70-80%
of patients. The role of an atypical left common PV (LCPV) and PV
anatomical indices on CBA outcomes remains unclear.