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KMID : 0364019920250090936
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Korean Journal of Thoracic and Cardiovascular Surgery
1992 Volume.25 No. 9 p.936 ~ p.942
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Papillary Muscle Rupture of the Left Ventricle -3 Cases-
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오중환
김호경/이종국/황성오/윤정한/박금수
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Abstract
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There are three types of papillary muscle of the left ventricle(finger, tethered and mixed type) according to the morphology of the attachment to the ventricular wall. Especially finger type of the papillary muscle is more vulnerable to the
injury
than
tethered or mixed type, because their blood supply is dependent upon the central artery whose diameter is less than 1mm and the papillary muscle itself is the end organ of the heart anatomically.
There are several causes of papillary muscle rupture but few cases have been reported. Recently we have experienced 3 cases of papillary muscle rupture of the left ventricle with successful mitral valve replacement and the causes are
postmyocardial
infarction, percutaneous mitral valvulotomy and non-penetrating chest trauma. The common finding is the morphology of papillary muscle, that is the finger type and their rupture type is the complete type.
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KEYWORD
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