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Cryoballoon supplement to pulmonary-vein isolation curbs AF recurrence

JACC: Clinical Electrophysiology
Reuters Health - 06/11/2020 - In patients with long-standing persistent recurrence of atrial fibrillation (AF), pulmonary-vein isolation (PVI) with concomitant left atrial posterior wall isolation (PWI) using the cryoballoon suppresses AF recurrence more effectively than does PVI alone, according to U.S. and Japanese researchers. Although studies have suggested this approach could be successful, there is limited information on its efficacy when using cryoballoon ablation, Dr. Arash Aryana of Mercy General Hospital and Dignity Health Heart and Vascular Institute, in Sacramento, California, and colleagues note in JACC: Clinical Electrophysiology. To investigate, the researchers studied 110 patients who underwent PVI requiring a mean of 23 minutes of cryoablation. Adjunct radiofrequency ablation was required in four of the patients (7.3%) to complete PVI. The patients were then randomized to PVI or PVI plus PWI. If not in sinus rhythm, the PVI group underwent ca...

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