超声诊断胎儿三尖瓣下移畸形

目的探讨胎儿三尖瓣下移畸形的超声心动图特征。方法对所有受检胎儿均进行四腔心切面及四腔心切面头侧偏转法获得左、右室流出道切面、心底短轴切面、主动脉弓、动脉导管弓切面及三血管切面的扫查。对产前征诊断的8例胎儿三尖瓣下移畸形超声心动图特征进行总结分析。结果8例胎儿三尖瓣下移畸形均经尸体解剖证实为三尖瓣下移畸形,其中隔叶下移畸形5例,隔叶及后叶下移畸形2例,后叶下移畸形1例,三尖瓣前叶均发育冗长;1例合并室间隔缺损,2例合并房间隔缺损。胎儿三尖瓣下移畸形的声像图特点是:三尖瓣叶附着点下移,右心房增大,三尖瓣中度以上反流。结论超声心动图诊断胎儿三尖瓣下移畸形具有重要临床意义。

Objective To evaluate the sonographic findings of fetal ebstein＇s anomaly. Methods All patients are referred for fetal echocardiography including four-chamber, outflow tracts, short-axis, aortic and ductus arteriosus arch and three vessels views.We reviewed the fetal sonograms and medical records of 8 fetuses with prenatal dignosis of ebstein＇s anomaly.Results Eight fetuses were confirmed to be ebstein＇s anomaly by autopsy, including septal tricuspid leaflet displacement（5 cases）,septal and posterior tricuspid leaflet displacement（2cases）, posterior tricuspid leaflet displacement（lcases）.There was 1 case combined with ventricular septal defect, and 2 cases with atrial septal defect.Conclusion Fetal ebstein＇s anomaly can be detected by echocardiography.