Diagnosis and Treatment Technology
Application value of intrapartum B-ultrasound monitoring in the labor process of pregnant women with vaginal trial labor
Wang Weiping, Yang Junjuan, Zhao Meng
Published 2022-12-10
Cite as Chin J Pract Med, 2022, 49(23): 68-71. DOI: 10.3760/cma.j.cn115689-20220914-04271
Abstract
ObjectiveTo analyze the application value of intrapartum B-ultrasound monitoring in the labor process of pregnant women with vaginal trial labor.
MethodsA total of 200 pregnant women with vaginal trial delivery in Zhengzhou Maternal and Child Health Hospital from June 2021 to June 2022 were selected. The vaginal examination was used to monitor the maternal cervix, fetal position, and fetal presentation, and intrapartum B-ultrasound was used to measure the maternal cervix, fetal position, fetal presentation, angle of progression (AOP), and head-perineum distance (HPD). The differences between intrapartum B-ultrasound and vaginal examination data were analyzed, and the predictive effect of intrapartum B-ultrasound monitoring on the labor process was analyzed.
ResultsAmong the 200 pregnant women, the sequence of proportion of difference in maternal cervix detected by vaginal examination and by ultrasound monitoring from high to low were as follows: 53 cases (26.50%) with 0 to <0.5 cm, 52 cases (26.00%) with less or equal to 1.0 cm, and 38 cases (19.00%) with 0.5 cm to 1.0 cm. The difference in fetal presentation detected by vaginal examination and by B-ultrasound monitoring were as follows: 70 cases (35.00%) with>1 cm, 48 cases (24.00%) with 0 cm, and 43 cases (21.50%) with 1 cm. The difference in fetal orientation monitored by vaginal examination and by B ultrasound were as follows: 141 cases (70.50%) with the same fetal orientation, 24 cases (12.00%) with different fetal orientations, 16 cases (8.00%) detected only by B ultrasound, 15 cases (7.50%) with similar fetal orientations, and 4 cases (2.00%) monitored only by vaginal examination. At the active stage of the first stage of labor, the natural delivery rate was 50.00% (10/20) when AOP ≤ 122.5 °, which was lower than 95.83% (23/24) when AOP>122.5 °, P<0.05. The natural delivery rate was 43.75% (7/16) when HPD ≥ 41.5 mm, which was lower than 92.86% (26/28) when HPD<41.5 mm (P<0.05).
ConclusionsIntrapartum B-ultrasound monitoring can monitor labor data such as the maternal cervix, fetal position, and fetal presentation during the labor process of pregnant women with vaginal trial labor, and accurately judge the progress of the labor process, which is beneficial to predict the delivery outcome, with high clinical application value.
Key words:
Labor; Pregnant women; Vaginal trial labor; Intrapartum B-ultrasound monitoring
Contributor Information
Wang Weiping
Department of Ultrasonic Diagnosis, Zhengzhou Maternal and Child Health Hospital, Zhengzhou 450000, China
Yang Junjuan
Department of Obstetrics, Zhengzhou Maternal and Child Health Hospital, Zhengzhou 450000, China
Zhao Meng
Department of Ultrasonic Diagnosis, Zhengzhou Maternal and Child Health Hospital, Zhengzhou 450000, China
