Diagnostic value of fetal ductus venosus shunt rate for fetal intrauterine distress and severity of hypertensive disorder complicating pregnancy
Objective To investigate the diagnostic value of fetal ductus venosus(DV)shunt rate for fetal intrauterine distress and severity of hypertensive disorder complicating pregnancy(HDCP).Methods HDCP pregnant women with fetal intrauterine distress(distress group,n=92),simple HDCP pregnant women(HDCP group,n=92)and pregnant women with normal prenatal examination results at the same gestational age(control group,n=92)were selected as the research objects.According to the degree of fetal intrauterine distress,the distress group was divided into mild distress group,moderate distress group and severe distress group.The diastolic blood pressure(DBP),systolic blood pressure(SBP)and DV shunt rate of the research objects were measured;the receiver operating characteristic(ROC)curve was used to analyze the value of DV shunt rate in the diagnosis of fetal intrauterine distress and severe distress of HDCP.Results The maternal DBP,SBP and fetal DV shunt rate in the distress group were higher than those in the HDCP group and the control group(P＜0.05);the maternal DBP,SBP and fetal DV shunt rate in the HDCP group were higher than those in the control group(P＜0.05).In the distress group,47 cases were mild distress,29 cases were moderate distress,and 16 cases were severe distress;the maternal DBP,SBP and fetal DV shunt rate in the severe distress group were higher than those in the moderate distress group and the mild distress group(P＜0.05);the maternal DBP,SBP and fetal DV shunt rate in the moderate distress group were higher than those in the mild distress group(P＜0.05).ROC curve results showed that fetal DV shunt rate had certain diagnostic value for fetal intrauterine distress and severe distress of HDCP[areas under curve(AUC)=0.802,0.868],with sensitivity of 77.2％and 93.8％,and specificity of 77.2％and 65.8％,respectively.Conclusion Fetal DV shunt rate has a high diagnostic efficiency for fetal intrauterine distress and severity of HDCP.
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