RESUMEN
OBJECTIVE: To analyze the results of endocardial pulmonary vein cryoablation in patients with atrial fibrillation (AF) undergoing on-pump cardiac surgery. MATERIAL AND METHODS: The authors report postoperative outcomes in 19 patients after on-pump coronary artery bypass grafting and/or heart valve surgery and endocardial pulmonary vein cryoablation for concomitant AF. All procedures were performed for the period from September 2018 to December 2020. RESULTS: Successful procedure was determined by restoration of stable sinus rhythm in postoperative period. In 14 (79%) patients, sinus rhythm was restored in early postoperative period. In 5 (21%) patients (2 women, 3 men), AF recurred within 6-12 days after surgery. In one patient, postoperative period was complicated by atrioventricular blockade grade I. CONCLUSION: Endocardial pulmonary vein cryoablation is effective for AF. This procedure is expedient in patients with concomitant cardiac disease scheduled for open heart surgery.