Uterocervical Angle Measurement for Prediction Spontaneous Preterm Birth in Twin Pregnancy

Thai Journal of Obstetrics and Gynaecology

article

PanisaraNiyomyam¹  DhirapataraCharoenvidhya¹  Boonchai Uerpairojkit¹ 

[1] Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University

关键词: cervical length;    preterm birth;    second trimester;    uterocervical angle;    twin pregnancy;   

DOI  :  10.14456/tjog.2022.42

学科分类：社会科学、人文和艺术（综合）

来源: The Royal Thai College of Obstetricians and Gynaecologists

【 摘 要 】

Objective: This study's objective determined the predictive value of the uterocervical angle in predicting preterm birth in twin pregnant women at 16-23+6 weeks of gestation. Material and Method: A diagnostic study was conducted in twin pregnant women at 16-23+6 weeks of gestation who had prenatal care at the King Chulalongkorn Memorial Hospital between March 2019 and February 2020. Uterocervical angle and cervical length were assessed at 16-23+6 weeks of gestation. Optimal cutoff for the uterocervical angle was obtained to calculate the predictive values for preterm birth. Results: A total of 84 pregnant women were included in this study. Thirty-eight cases (47.5%) developed preterm birth. Women who delivered < 37 weeks had significantly higher uterocervical angles compared to those who delivered 37 weeks (109.32 degrees vs. 96.41 degrees, P=0.016). The optimal cutoff of the uterocervical angle was 102 degrees. Sensitivity specificity, positive predictive value, and negative predictive value were 65.8%, 61.9%, 61.9%, and 68.4%, respectively.  Conclusion: The uterocervical angle is an easy technique that can be one of the screening tools to predict preterm birth among twin pregnant women who had an angle equal to or greater than 102 o, with a sensitivity, positive predictive value, and a negative predictive value of more than 60%.

【 授权许可】

CC BY-NC-ND