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The prevalence of ruptured chordae tendineae in the mitral valve prolapse syndrome

American Heart Journal 105(4): 603-610
The prevalence of ruptured chordae tendineae in the mitral valve prolapse syndrome
Echocardiographic studies were performed on 134 consecutive patients with idiopathic mitral valve prolapse syndrome. Fifteen patients (11.2%) were noted to have ruptured chordae tendineae on M-mode examination and in 12 of them the diagnosis was confirmed by bidimensional studies. Only 4 patients were referred for surgery as a result of severe mitral regurgitation. At operation 1 patient was found to have rupture of the anterior mitral chorda and the other 3 had posterior mitral chordal rupture. Eleven patients with chordal rupture had either mild symptoms or were completely asymptomatic. Apparently, chordal rupture in patients with the mitral valve prolapse syndrome does not always result in severe hemodynamic deterioration and may go undetected unless a high index of suspicion is maintained. Serial echocardiographic studies may reveal the natural history of this condition in asymptomatic patients.

Accession: 006740498

PMID: 6837414

DOI: 10.1016/0002-8703(83)90484-2

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