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  • Title: Blunt traumatic rupture of a mitral papillary muscle head.
    Author: Smedira NG, Zikri M, Thomas JD, Lauer MS, Kelleman JJ, McCarthy PM.
    Journal: Ann Thorac Surg; 1996 May; 61(5):1526-8. PubMed ID: 8633976.
    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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