Blunt traumatic rupture of a mitral papillary muscle head.

Smedira, N G; Zikri, M; Thomas, J D; Lauer, M S; Kelleman, J J; McCarthy, P M · Ann Thorac Surg · 1996

case_report · Level V

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Abstract

Severe mitral regurgitation developed in a patient after a lateral-impact motor vehicle accident. The papillary muscle head was disrupted without evidence of other myocardial injury. We hypothesize that a dramatic and sudden increase in intrathoracic pressure may have produced the injury. The patient experienced progressive heart failure and underwent successful mitral valve repair 9 days after the accident.

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