Uterocervical angle versus cervical length in the prediction of spontaneous preterm birth in singleton pregnancy
Uterocervical angle versus cervical length in the prediction of spontaneous preterm birth in singleton pregnancy
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DOI：
10.1002/ijgo.13629
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发表时间：
2021-02-23
影响因子：
3.8
通讯作者：
Aboelroose, Ahmed A.
中科院分区：
文献类型：
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作者：
Khamees, Rasha E.;Khattab, Basma M.;Aboelroose, Ahmed A.
目的探讨宫颈角度和宫颈长度在预测早产中的作用。方法采用横断面分析方法，对167例早产高危孕妇(孕37周前分娩)进行研究。在妊娠30周至32周、32周(+1周)、34周(+1周)、36周(+1周)进行经阴道超声检查，测量宫颈角度和宫颈长度。结果早产儿的平均宫颈角度明显大于早产者(115.4°+/-9.1度对101.1°+/-8.3度，p<；0.001)。两组宫颈长度分别为(27.9±-4.0)mm和(29.1±-4.1)mm，差异无统计学意义(P=0.067)。宫颈角度大于或等于105度预测早产的敏感性和特异性分别为86.1%和60.4%。宫颈长度小于或等于25 mm对早产的敏感性为27.8%，特异性为85.8%。结论宫颈角度大于105度是早产的高危因素。在高危患者中，它提供了比颈椎管长度测量更高的诊断性能。
Objective To evaluate the predictive role of the uterocervical angle and the cervical length in preterm birth.Methods This was cross-sectional analytical study, recruiting 167 women at high-risk for preterm birth (delivery before 37 weeks of pregnancy). They had transvaginal ultrasound for evaluation of the uterocervical angle and the cervical length between at 30 and 32, 32(+1) and 34, and 34(+1) and 36(+1) weeks of pregnancy. The primary outcome was to determine the predictive role of the uterocervical angle and the cervical length in preterm birth.Results The mean uterocervical angle was significantly greater in those who delivered preterm (115.4 degrees +/- 9.1 degrees versus 101.1 degrees +/- 8.3 degrees, p < 0.001). The cervical length was insignificantly shorter in the same group (27.9 +/- 4.0 and 29.1 +/- 4.1 mm, respectively, p = 0.067). A uterocervical angle of 105 degrees or more predicted preterm birth with sensitivity and specificity of 86.1% and 60.4%, respectively. A cervical length of 25 mm or less had sensitivity and specificity of 27.8% and 85.8%, respectively.Conclusion A uterocervical angle greater than 105 degrees poses a high risk for preterm deliveries. It provides a higher diagnostic performance in high-risk patients than cervical canal length measurement.