Echocardiographic evidence of increased mitral-aortic separation in discrete subaortic stenosis

The present study reports the two-dimensional echocardiographic pattern of 6 patients affected by discrete subaortic stenosis. The diagnosis was proven at cardiac catheterization. The echocardiographic picture was characterized by a deformity of the left ventricular outflow tract due to an inward-protruding upper septum and to an elongated and domed mitral-aortic separation. The latter finding has been described in anatomic studies but has never been reported with wide-angle echocardiography.