Treatment of Postoperative New Onset Atrial Fibrillation with Repolarization Delaying Agents after Heart Surgery.

Purpose: The aim of this study was to evaluate the efficacy of the multichannel-blocker dronedarone for postoperative new onset atrial fibrillation (POAF) as compared to amiodarone.

Methods: Out of 990 patients who underwent cardiothoracic surgery between March 2011 and March 2012, 166 patients who developed POAF and treated with amiodarone or dronedarone were enrolled in this study.

Results: Eighty-nine patients were treated with amiodarone and 77 patients were treated with dronedarone at discharge.