Raise-up technique to achieve better stability and contact with the roof line during cryoballoon ablation.

Cryoballoon pulmonary vein isolation (PVI) is effective in managing persistent atrial fibrillation (AF). Previous meta-analyses have shown that adding left atrial (LA) roof and bottom lines using cryoballoon can improve the AF-free rates.1 However, the cryoballoon sometimes becomes unstable on the left side of the roof line. We herein report the “raise-up technique” for the first time, which is designed to improve contact and stability during cryoballoon roof line ablation.