Scovil J A, Nanda N C, Gross C M, Lombardi A C, Gramiak R, Lipchick E O, Manning J A
Circulation. 1976 Jun;53(6):953-6. doi: 10.1161/01.cir.53.6.953.
Echocardiograms were performed in thirty-six patients (aged 4 to 36 years) with proven coarctation of the aorta. Nineteen patients (53%) were found to have marked diastolic eccentricities of their aortic valves (Eccentricity Index greater 1.5), indicating the presence of bicuspid aortic valves. One of these patients also had multilayered aortic root echoes in diastole. Five patients had angiographic proof of their aortic valve morphologies which corroborated the echo findings. Five patients with bicuspid aortic valves showed mitral valve diastolic flutter indicative of aortic regurgitation. Idiopathic hypertrophic subaortic stenosis (IHSS) was suspected in four patients (11%) with abnormal systolic anterior motion of the mitral valve; three of these patients also had asymmetric septal hypertrophy. There was catheterization proof of IHSS in one patient. Two patients (5.6%) demonstrated mitral valve proplapse.
对36例（年龄4至36岁）经证实患有主动脉缩窄的患者进行了超声心动图检查。发现19例患者（53%）的主动脉瓣存在明显的舒张期偏心（偏心指数大于1.5），表明存在二叶式主动脉瓣。其中1例患者在舒张期还出现了主动脉根部多层回声。5例患者的主动脉瓣形态经血管造影证实，与超声检查结果相符。5例二叶式主动脉瓣患者出现二尖瓣舒张期扑动，提示主动脉瓣反流。4例（11%）二尖瓣出现异常收缩期前向运动的患者被怀疑患有特发性肥厚性主动脉瓣下狭窄（IHSS）；其中3例患者还伴有不对称性室间隔肥厚。1例患者经心导管检查证实患有IHSS。2例患者（5.6%）表现为二尖瓣脱垂。
