Effect of Atrial Septal Defect Repair
نویسندگان
چکیده
To ascertain the effects of surgical closure of atrial septal defect on left ventricular geometry and degree of mitral prolapse, 14 patients with atrial septal defect were studied by cross-sectional and M-mode echocardiography preoperatively and 7 days postoperatively. Seven of the 14 patients (50%) had mitral valve prolapse preoperatively by cross-sectional echocardiography. To quantitate the degree of prolapse, we measured the net algebraic area subtended by the apposed mitral valve leaflets in systole (MVAS) with respect to the mitral ring. The mitral valve prolapse group had an MVAS of 0.3 ± 3.1 units (mean ± SEM) preoperatively, while the group without mitral valve prolapse had an MVAS of 12.5 ± 3.1 units (p < 0.02). Postoperatively, prolapse either decreased in degree or was abolished in six of seven patients (86%), associated with
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