<prompt> Maze operation is done in which of the following condition?Atrial fibrillationComplete hea blockEbstein anomalyTruncus aeriosus  <response>: Surgical ablation of AF is typically performed at the time of other cardiac valve or coronary aery surgery and, less commonly, as a stand-alone procedure. The Cox surgical Maze procedure is designed to interrupt all macroreentrant circuits that might potentially develop in the atria, thereby precluding the ability of the atria to fibrillate. 