AP19-00267 Abstract View

Methods : This was a single-arm, retrospective study in 11 patients with persistent AF treated at our center. Cryoablation was performed using a 28 mm second-generation cryoballoon. Sequential overlapping freezes were applied along the left atrial (LA) roof by slight clockwise rotation of the sheath in combination with slight retraction of the sheath and incremental advancement of the cryoballoon, until reaching the original position of right superior pulmonary vein (PV) isolation. The acute endpoint was the creation of a roofline.