Ruptured Papillary Muscles After Chordae-Preserving Bioprosthetic Mitral Valve Replacement.

Bioprosthetic valve-associated masses in the perioperative period are rare. This report describes the case of a 68-year-old man with perivalvular masses that were initially discovered on a routine postoperative transthoracic echocardiogram 7 days after chordae-preserving mitral valve replacement and coronary artery bypass grafting. An intraoperative transesophageal echocardiogram demonstrated ruptured papillary muscles. This case report describes the differential diagnosis and surgical management of this rare finding.