Value of color Doppler echocardiographic diagnosis in prenatal closure of the fetal ductus arteriosus / 中华超声影像学杂志

Objective To study the value of echocardiography in diagnosis of prenatal closure of fetal ductus arteriosus(FDA) and discuss its characteristics. Methods Two cases with prenatal closure and one case with constriction of the FDA were examined.The echocardiographic characteristics were analyzed and the literature was reviewed. Results Right atrial and ventricular dilatation and severe tricuspid valve insufficiency were observed. After timely delivery, impaired right ventricular function improved significantly. Conclusions Fetal echocardiography plays an important role in diagnosis of prenatal closure of the FDA.