Abstract
Papillary muscle rupture may occur even in patients with small or no myocardial ischemic lesion, and it may also arise from iatrogenic complications. We report a case of papillary muscle rupture following artery dissection, that apparently occurred due to catheter intervention. An 83-year-old woman with stable angina pectoris underwent percutaneous coronary intervention. Coronary artery dissection occurred during the procedure; however, she showed no ischemic symptoms or change in her laboratory parameters. She presented with dyspnea after 9 days. Echocardiography showed massive mitral regurgitation and a ruptured posterior median papillary muscle. She underwent emergent mitral valve replacement and recovered without complications. Papillary muscle rupture following coronary artery dissection associated with catheter intervention is an extremely rare but serious complication, and even a small ischemic area merits observation.
