超声心动图诊断胎儿三尖瓣下移畸形

目的：探讨产前超声心动图诊断胎儿三尖瓣下移畸形的临床价值。方法：回顾性分析5例胎儿三尖瓣下移畸形的超声图像与随访结果,分析其图像和彩色多普勒血流特点。结果：5例胎儿经尸解均证实为三尖瓣下移畸形;胎儿三尖瓣下移畸形的主要声像学特点是胎儿右心房增大;三尖瓣下移至右心室;心尖到二尖瓣前叶附着点的距离与到三尖瓣隔叶附着点的距离比值≥1.8;三尖瓣严重返流,返流起源点低,返流速度低。结论：产前应用胎儿超声心动图诊断胎儿三尖瓣下移畸形具有很大的临床价值。

Diagnosis of Fetal Ebstein Anomaly by Echocardiography

Objective： To explore the clinical value of ultrasonic diagnosis of fetal Ebstein anomaly in prenatal.Methods：Retrospective analyses of 2D-heart views and CDFI（color Doppler flow image） as well as the follow-up findings were made in 5 cases with fetal Ebstein anomaly.Results：5 cases were proved into Ebstein＇s anomaly by autopsy,The echocardiography of fetal Ebstein＇s anomaly was characterized by right atrial enlargement,displacement of tricuspid valve attachment point,the distance ratio of between cardiac apex and bicuspid valve attachment point and between cardiac apex and tricuspid valve attachment point exceeding 1.8,color blood flow indicating severe tricuspid regurgitation with low initial point and slow speed.Conclusion：Echocardiography has very important clinical value in diagnosis of fetal Ebstein anomaly.