Left atrial roof region ablation using a visually guided laser balloon.

Balloon-based catheter ablation including visually guided laser balloon (VGLB) has been adopted a first line therapeutic strategy for the patients with atrial fibrillation (AF). Recently, the roof area ablation beyond pulmonary vein (PV) isolation (PVI) using cryoballoon has been described as an effective therapy for the patients with persistent AF. However, the roof area ablation performed with a VGLB remains unknown.