摘要
Abstract
Objective To investigate the influencing factors of fetal heart rate abnormality in fetal elec-trocardiogram,and to predict and analyze.Methods A total of 1 124 healthy pregnant women in the second trimesters and late pregnancy who were examined in the hospital from January 2021 to December 2022 were selected as the research objects.The general clinical data of pregnant women,as well as the results of fetal e-lectrocardiogram and transabdominal color Doppler ultrasonography in the same period were collected,inclu-ding the maternal age,gestational age,maternal heart rate,amniotic fluid depth,amniotic fluid index,umbilical artery end-systolic peak/end-diastolic peak(S/D),umbilical artery blood flow pulsation index(PI),and umbili-cal artery blood flow resistance index(RI).According to whether the fetal heart rate was normal or not,they were divided into normal heart rate group(120-160 beats/min),sinus bradycardia group(＜120 beats/min),sinus tachycardia group(＞160 beats/min).Sinus bradycardia and sinus tachycardia were both abnormal fetal heart rate group.According to the fetal heart rate,they were divided into four groups:group one(110-130 beats/min),group two(131-150 beats/min),group three(151-170 beats/min)and group four(171-190 beats/min).One-way ANOVA was used to compare the differences between the groups,and Person correlation analysis was used to find the relationship between fetal heart rate and related indicators.Binary logistic regression anal-ysis was performed to identify the risk predictors of abnormal fetal electrocardiogram with abnormal fetal heart rate as the dependent variable and maternal age,gestational age,maternal heart rate,amniotic fluid depth,amniotic fluid in-dex,S/D,PI and RI as the independent variables.Results There were significant differences in gestational age and maternal heart rate between the sinus tachycardia group and the normal heart rate group(P＜0.05).There was a significant difference in maternal heart rate between the sinus bradycardia group and the normal heart rate group and the sinus tachycardia group(P＜0.05).Compared with group one,the heart rate of preg-nant women increased with the increase of fetal heart rate in the other groups,and the gestational age was smaller,the difference was statistically significant(P＜0.05).Compared with group two,the maternal heart rate in group three and group four increased,and the gestational age was small,the difference was statistically significant(P＜0.05).Person correlation analysis showed that fetal heart rate was positively correlated with maternal heart rate,amniotic fluid depth and RI(P＜0.05),and negatively correlated with gestational age(P＜0.05).Binary logistic regression analysis showed that small gestational age(OR=0.903,95％CI 0.846-0.965,P=0.002)and maternal heart rate(OR=1.032,95％CI 1.015-1.048,P＜0.001)were relat-ed risk factor for abnormal fetal electrocardiogram in the second trimester and late pregnant women.Conclusion Fetal heart rate is affected by maternal heart rate and gestational age.It increases with the in-crease of maternal heart rate and decreases with the increase of gestational age.关键词
胎儿心电图/胎儿心率/胎龄/孕母心率Key words
Fetal electrocardiogram/Fetal heart rate/Gestational age/Maternal heart rate分类
医药卫生
