Blunt traumatic rupture of a mitral papillary muscle head.
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.
Smedira
N G
NG
Department of Thoracic and Cardiovascular Surgery, Cleveland Clinic Foundation, OH 44195, USA.
Zikri
M
M
Thomas
J D
JD
Lauer
M S
MS
Kelleman
J J
JJ
McCarthy
P M
PM
D000063:Accidents, Traffic; D005260:Female; D006341:Heart Rupture / Q000150:complications* / Q000209:etiology; D006801:Humans; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000209:etiology* / Q000601:surgery; D010210:Papillary Muscles / Q000293:injuries*; D014949:Wounds, Nonpenetrating / Q000150:complications*