Value of dual Doppler ultrasonography in the evaluation of fetal arrhythmias
10.3760/cma.j.issn.1004-4477.2016.03.004
- VernacularTitle:双多普勒超声评估胎儿心律失常的应用价值
- Author:
Qiuyue CHEN
;
Guorong LYU
;
Yunping LIU
;
Xiali WANG
- Publication Type:Journal Article
- Keywords:
Echocardiography,Doppler;
Fetal heart;
Arrhythmias;
Dual Doppler
- From:
Chinese Journal of Ultrasonography
2016;25(3):198-202
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the value of fetal dual Doppler ultrasonography in the diagnosis of fetal arrhythmias.Methods 77 53 1 fetuses were examined by echocardiography.If fetal arrhythmias were found,information of pulsed wave Doppler signals in hepatic vein(HV) and descending aorta(DAo) using dual Doppler were collected simultaneously.Results On dual Doppler examination,13 1 of the fetuses showed signals of cardiac dysrhythmias,including 60 fetuses with irregular fetal heart rhythm but having normal heart rate,45 with tachyarrhythmias and 26 with bradyarrhythmias.Sixteen and 2 with tachy- or bradyarrhythmias fetuses complicated fetal malformation or severely maternal systemic diseases.Eighteen and 3 with tachy- or bradyarrhythmias fetuses revealed intrauterine death or intermediate pregnancy induction.The three main kinds of fetal arrhythmias had statistical differences in complicating with fetal malformation,maternal diseases,intrauterine fetal demise or intermediate pregnancy induction(all P <0.05).There was a significant difference in the accuracy of diagnosing rhythm abnormalities in the fetus between conventional ultrasonography and dual Doppler ultrasonography(k = 0.562,P < 0.05).Sixty cases of irregular fetal heart rhythm,42 cases of fetal tachyarrhythmias,and 8 cases of fetal bradyarrhythmias were changed to normal rhythm at the third-pregnancy or prenatal period through appropriate treatment.All surviving fetuses were examined by echocardiography within 3 days,without any combination of congenital heart disease,and 1 months after the delivery,the ECG were shown as sinus rhythm.Conclusions Dual Doppler ultrasonography is a precise and rapid method of assessing various types of fetal arrhythmias.Different types of fetal arrhythmias have different fetal prognosis.
