May 24, 2012 -- nContact Inc., a provider of epicardial ablation devices, announced that new long-term physician data demonstrated promising clinical outcomes for the multidisciplinary Convergent Procedure in the treatment of persistent atrial fibrillation (AF), with more than 80% of patients remaining in sinus rhythm at a minimum of 12 months follow-up. The data was presented by physicians at Heart Rhythm 2012, the Heart Rhythm Society's 33rd Annual Scientific Sessions, May 9-12 in Boston.