Systolic anterior motion of the mitral valve after Carpentier ring valvuloplasty for mitral valve prolapse.

摘要: Between July 1983 and March 1985, 45 patients with severe mitral regurgitation underwent valvuloplasty insertion of a semirigid Carpentier ring. No patient had echocardiographic evidence systolic anterior motion (SAM) preoperatively, whereas 5 this finding postoperatively. All valve prolapse as their underlying disease process SAM developed at varying intervals after valvuloplasty. The development is related to the ring, persistence redundant leaflet, narrowing left ventricular (LV) outflow tract Venturi effect. LV aortic pressure measurements simultaneous Doppler echocardiography have confirmed presence significant gradient in these patients. Although all are functionally improved valvuloplasty, long-term implications unknown.