Clinical Outcomes of Intracardiac Echocardiography-Guided Contrast Agent-Free Cryoballoon Ablation in Atrial Fibrillation Patients With Renal Insufficiency

Abstract

Author's summary We investigated the efficacy and safety of cryoballoon ablation (CBA) in atrial fibrillation (AF) patients with chronic kidney disease (CKD) versus those without CKD and to evaluate the changes in renal function over 12 months after CBA in AF patients. In this prospective cohort study, all enrolled patients undergoing contrast agent-free CBA under intracardiac echocardiography guidance. There was no significant difference in clinical recurrence rate during a mean follow-up of 25.4±11.9 months between the two groups. The CKD patients showed a significant improvement in renal function over 12 months after CBA.