References in periodicals archive ?
Mitral valve repair for ischemic mitral incompetence. In: Hetzer R, Rankin JS, Yankah CA.
Failure of one or both papillary muscles to shorten during the ejection phase of ventricular systole, fibrosis, and atrophy of a papillary muscle or centrifugal migration of the papillary muscles due to left ventricular dilatation result in mitral incompetence. (1) In mitral valve prolapse syndrome, the left ventricle assumes various configurations, which is possibly dependent on the architecture and location of papillary muscles, subject to pull by the prolapsing leaflet.
Acute mitral incompetence in patients with cardiogenic shock has an observed mortality of 55%, which is marginally improved to 39% in patients selected for emergency surgery.