Three-dimensional echocardiography of a flail tricuspid valve.

A 71-year-old man with an old myocardial infarction and blunt chest trauma 2 years previously came to our hospital with increasing dyspnea. Three-dimensional echocardiography was performed and a ruptured papillary muscle with flail anterior tricuspid valve was demonstrated from a surgical perspective (electronic atriotomy). These findings were confirmed during open-heart surgery with close similarity.