Predictive value for fetal distress in elderly pregnant women by blood flow parameters of pregnancy uterine artery and fetal middle cerebral artery and renal artery
Objective To explore the predictive value of fetal distress in elderly pregnant women using blood flow parameters of pregnancy uterine artery(UtA),fetal middle cerebral artery(MCA),and renal artery(RA).Methods A total of 163 elderly pregnant women,who registered,examined and delivered in the First Affiliated Hospital of Hebei North University from March 2021 to June 2023,were selected as the study subjects,including 43 pregnancy with fetal distress(study group)and 120 pregnancy with normal birth(control group).Pulse Doppler technology was used to obtain spectrograms of pregnancy UtA,fetal MAC and RA.Blood flow parameters were measured,including peak systolic blood flow velocity/end-diastolic velocity(S/D),pulsatility index(PI),resistance index(RI)were compared between the two groups.Results There was no significant difference in age and gestational age between the two groups(P＞0.05).Compared with the control group,S/D,PI and RI of pregnancy UtA in the study group were significantly increased(P＜0.05),S/D,PI and RI of fetal MAC were significantly decreased(P＜0.05),and S/D,PI and RI of fetal RA were significantly increased(P＜0.05).The S/D,PI and RI values of fetal RA and MAC were significantly increased in the study group(P＜0.05).The S/D,PI and RI values of fetal RA and MAC in the study group were positively correlated with the S/D,PI and RI of UtA in pregnant women.Conclusion The blood flow parameters of Uta,fetal MCA and RA complement each other,which can be used as an important indicator to predict the occurrence of fetal distress in elderly pregnant women.
万方数据
维普
