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Published on: August 18, 2016
Complete rupture of the anterolateral papillary muscle caused by coronary spasm
Masataka Yamazaki1, Toshihiro Fukui2, Keitaro Mahara3
1Department of Cardiovascular Surgery, Sakakibara Heart Institute, Tokyo, Japan m-yamazaki@mva.biglobe.ne.jp.
Abstract:
Papillary muscle rupture usually occurs as a catastrophic complication of acute myocardial infarction in patients with coronary artery stenosis; it is therefore less common in patients without coronary artery stenosis. We report the case of a 67-year old woman without coronary artery stenosis who suffered an acute anterolateral papillary muscle rupture and was successfully treated with mitral valve replacement. Evidence of coronary spasm was found on a coronary vasomotion test, suggesting that a high sensitivity to coronary spasm may explain a mechanism of isolated papillary muscle infarction.
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