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Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth |
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| รหัสดีโอไอ | |
| Creator | Kulwadee Kitipoonwongwanid |
| Title | Transvaginal Ultrasound Measurement of the Uterocervical Angle for Prediction of Spontaneous Preterm Birth |
| Contributor | Adjima Soongsatitanon |
| Publisher | PIMDEE Co., Ltd. |
| Publication Year | 2564 |
| Journal Title | Thai Journal of Obstetrics and Gynaecology |
| Journal Vol. | 29 |
| Journal No. | 2 |
| Page no. | 112-119 |
| Keyword | cervical length, preterm birth, transvaginal ultrasound, uterocervical angle |
| URL Website | https://tci-thaijo.org/index.php/tjog/index |
| Website title | www.tci-thaijo.org |
| ISSN | 2673-0871 |
| Abstract | 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. |
