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  • Title: Complete rupture of the anterolateral papillary muscle caused by coronary spasm.
    Author: Yamazaki M, Fukui T, Mahara K, Takanashi S.
    Journal: Interact Cardiovasc Thorac Surg; 2015 Dec; 21(6):798-800. PubMed ID: 26330339.
    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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