Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth
Objectives: To determine the predictive values for spontaneous preterm birth by using transvaginal ultrasonography of the uterocervical angle (UCA) in pregnant women with 16-24 weeks’ gestationMaterials and Methods: A prospective cohort study was conducted in singleton pregnant women wi...
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The Royal Thai College of Obstetricians and Gynaecologists
2021-03-01
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doaj-a66c9e2ce968414486592ca2add64ec72021-04-08T06:38:29ZengThe Royal Thai College of Obstetricians and GynaecologistsThai Journal of Obstetrics and Gynaecology0857-60842021-03-01292112119https://doi.org/10.14456/tjog.2021.14Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm BirthKulwadee Kitipoonwongwanid0Adjima Soongsatitanon1Department of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital Navamindradhiraj University, 681 Samsen Road, Dusit district, Bangkok 10300, ThailandDepartment of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital Navamindradhiraj University, Bangkok, ThailandObjectives: To determine the predictive values for spontaneous preterm birth by using transvaginal ultrasonography of the uterocervical angle (UCA) in pregnant women with 16-24 weeks’ gestationMaterials and Methods: A prospective cohort study was conducted in singleton pregnant women with 16-24 weeks’ gestation. The UCA was performed at the time of cervical length screening. The data were recorded. Then the predictive values for spontaneous preterm birth were calculated. Results: The data from 528 pregnant women was analyzed. Fifty-nine women developed spontaneous preterm birth and seven of these developed preterm birth at < 34 weeks. The UCA was significantly wider in preterm group when compare with controls (102.8 degrees vs 88.7 degrees, p < 0.001). The sensitivity, specificity, positive predictive value and negative predictive values of the UCA more than 95 degrees for prediction of spontaneous preterm birth were 74.6%, 64.6%, 21.0% and 95.3% respectively.Conclusion: A wide uterocervical angle > 95 degrees detected during the second trimester was associated with an increased risk for spontaneous preterm birth < 37 weeks. This data showed that the uterocervical angle may be used as a screening tool for spontaneous preterm birth.https://he02.tci-thaijo.org/index.php/tjog/article/download/217105/169576/cervical lengthpreterm birthtransvaginal ultrasounduterocervical angle |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kulwadee Kitipoonwongwanid Adjima Soongsatitanon |
spellingShingle |
Kulwadee Kitipoonwongwanid Adjima Soongsatitanon Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth Thai Journal of Obstetrics and Gynaecology cervical length preterm birth transvaginal ultrasound uterocervical angle |
author_facet |
Kulwadee Kitipoonwongwanid Adjima Soongsatitanon |
author_sort |
Kulwadee Kitipoonwongwanid |
title |
Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth |
title_short |
Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth |
title_full |
Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth |
title_fullStr |
Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth |
title_full_unstemmed |
Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth |
title_sort |
transvaginal ultrasound measurement of the uterocervical angle for prediction of spontaneous preterm birth |
publisher |
The Royal Thai College of Obstetricians and Gynaecologists |
series |
Thai Journal of Obstetrics and Gynaecology |
issn |
0857-6084 |
publishDate |
2021-03-01 |
description |
Objectives: To determine the predictive values for spontaneous preterm birth by using transvaginal ultrasonography of the uterocervical angle (UCA) in pregnant women with 16-24 weeks’ gestationMaterials and Methods: A prospective cohort study was conducted in singleton pregnant women with 16-24 weeks’ gestation. The UCA was performed at the time of cervical length screening. The data were recorded. Then the predictive values for spontaneous preterm birth were calculated. Results: The data from 528 pregnant women was analyzed. Fifty-nine women developed spontaneous preterm birth and seven of these developed preterm birth at < 34 weeks. The UCA was significantly wider in preterm group when compare with controls (102.8 degrees vs 88.7 degrees, p < 0.001). The sensitivity, specificity, positive predictive value and negative predictive values of the UCA more than 95 degrees for prediction of spontaneous preterm birth were 74.6%, 64.6%, 21.0% and 95.3% respectively.Conclusion: A wide uterocervical angle > 95 degrees detected during the second trimester was associated with an increased risk for spontaneous preterm birth < 37 weeks. This data showed that the uterocervical angle may be used as a screening tool for spontaneous preterm birth. |
topic |
cervical length preterm birth transvaginal ultrasound uterocervical angle |
url |
https://he02.tci-thaijo.org/index.php/tjog/article/download/217105/169576/ |
work_keys_str_mv |
AT kulwadeekitipoonwongwanid transvaginalultrasoundmeasurementoftheuterocervicalangleforpredictionofspontaneouspretermbirth AT adjimasoongsatitanon transvaginalultrasoundmeasurementoftheuterocervicalangleforpredictionofspontaneouspretermbirth |
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