会阴超声检测宫颈长度对早产高危孕妇与先兆早产孕妇发生早产的预测价值

Predictive Value of Perineal Ultrasound in Detecting Cervical Length in Pregnant Women with High Risk and Pregnant Women with Threatened Preterm Birth of Preterm Birth

目的:探讨会阴超声检测宫颈长度对早产高危孕妇与先兆早产孕妇发生早产的预测价值。方法:选取2016年5月-2017年5月本院收治的早产高危孕妇68例,选取同期收治的先兆早产孕妇68例,分析会阴超声检测宫颈长度对其发生早产的预测情况。结果:早产高危组早产产妇宫颈长度低于足月产(P<0.05),先兆早产组早产产妇宫颈长度低于足月产(P<0.05)。当宫颈长度≤35 mm时,预测早产准确率为0;当宫颈长度≤30 mm时,预测早产准确率为40.0%;当宫颈长度≤25 mm时,预测早产准确率为83.3%;当宫颈长度≤20 mm时,预测早产准确率为100%。本次研究纳入的136例孕妇,实际早产24例;宫颈长度≤20 mm孕妇17例,早产17例,早产发生率为100%;宫颈长度≤25 mm孕妇31例,早产5例,早产发生率为16.1%;宫颈长度≤30 mm孕妇42例,早产2例,早产发生率为4.8%;宫颈长度≤35 mm孕妇46例,均未发生早产。结论:经会阴超声检查有助于对早产高危孕妇与先兆早产孕妇早产发生情况进行预测,早产孕妇的宫颈长度明显缩短。早产高危孕妇宫颈长度虽未发生明显变化,但也应加强预防,因此针对先兆早产孕妇可以将宫颈长度作为其早产发生的重要参考指标。

Objective:To investigate the predictive value of perineal ultrasound in detecting cervical length in pregnant women with high risk of preterm birth and pregnant women with threatened preterm birth of Preterm Birth.Method:68 pregnant women with high risk of preterm birth admitted to our hospital from May 2016 to May 2017 were selected,and 68 pregnant women with threatened preterm birth admitted to our hospital during the same period were selected.The prediction of preterm birth by perineal ultrasound was analyzed.Result:The cervical length of preterm pregnant women in the high-risk group was lower than that in the full-term labor group(P<0.05),and the cervical length of preterm pregnant women in the preterm labor group was lower than that in the full-term labor group(P<0.05).When the cervical length was 35 mm,the prediction accuracy of premature delivery was 0.When the cervical length was less than or equal to 30 mm,the accuracy of preterm delivery was 40.0%.When the cervical length was less than 25 mm,the prediction accuracy of premature delivery was 83.3%.When the cervical length was 20 mm,the prediction accuracy of preterm delivery was 100%.Among 136 pregnant women included in this study,24 cases were actually born prematurely.There were 17 pregnant women with cervical length less than or equal to 20 mm and 17 pregnant women with preterm labor,and the incidence of preterm labor was 100%.There were 31 pregnant women with cervical length less than 25 mm and 5 pregnant women with preterm birth,and the preterm birth rate was 16.1%.There were 42 pregnant women with cervical length less than or equal to 30 mm and 2 pregnant women with preterm labor,and the preterm labor rate was 4.8%.There were 46 pregnant women with cervical length 35 mm and no premature delivery.Conclusion:Perineal ultrasound is helpful to predict the incidence of preterm birth in high-risk preterm pregnant women and preterm preterm pregnant women.Although there is no significant change in the cervical length of pregnant women with high risk of preterm birth,prevention should also be strengthened.Therefore,cervical length can be used as an important reference index for the occurrence of preterm birth in pregnant women with threatened preterm birt h.