Prediction of Preterm Labor Using Uterine Electromyography in Women with Threatened Preterm Labor after Tocolytic Therapy
- VernacularTitle:子宫肌电图对先兆早产孕妇使用宫缩抑制剂后发生早产的预测
- Author:
Qiang HUANG
1
;
Feizhou JIANG
1
;
Wenjie HOU
1
;
Leilei HE
1
;
Kun YU
1
;
Li CHEN
1
;
YIhui GU
1
;
Jingtong ZHANG
1
;
Yueming ZHANG
1
Author Information
1. 苏州大学附属第四医院妇产科,江苏 苏州 215000
- Publication Type:Journal Article
- Keywords:
Utersrine electromyography;
Threatened preterm labor;
Premature labor;
Tocolysis
- From:
Journal of Practical Obstetrics and Gynecology
2025;41(4):346-350
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the predictive value of transabdominal uterine electromyography for pre-term labor after tocolysis in women with threatened preterm labor.Methods:A total of 48 pregnant women at 28-34 weeks of gestation diagnosed with threatened preterm labor and admitted to The Fourth Affiliated Hospital of Soo-chow University from January to September 2023 were included.According to the response to tocolysis and whether the pregnancy was prolonged for at least 48 h,women were divided into two groups:non-preterm birth within 48 h(n=35)and preterm birth within 48 h(n=13).Uterine electromyography parameters and difference were compared before and after tocolytic therapy in two groups.Univariate Logistic regression was performed to predict the related factors of preterm birth within 48 h after the using of tocolysis in pregnant women with threat-ened preterm birth by uterine electromyography,and receiver operating characteristic(ROC)curve was per-formed to evaluate their performance.Results:Compared to before treatment with tocolysis,after therapy,in the non-preterm birth within 48 h group,significant reductions in contraction frequency,area,duration and amplitude were observed(P<0.05).In the preterm birth within 48 h group,only contraction frequency decreased significant-ly(P<0.05).Univariate Logistic regression indicated that contraction frequency,contraction duration,and contrac-tion area were predictive factors for premature birth within 48 h after tocolysis(P<0.05).When the duration of u-terine contractions lasting for 104.55 s or more the sensitivity and specificity of predicting premature birth within 48 h are 92.3％and 68.6％,respectively.Conclusions:Uterine electromyography may predict the premature birth within 48 h after tocolytic treatment in preterm labor,which may provide reference for subsequent corticosteroid therapy or transfer of high-risk pregnant patients.
