腹部超声与会阴超声测量宫颈长度在预测早产中的价值对比

Comparison of the value of abdominal ultrasound and perineal ultrasound in estimating cervical length in predicting preterm labor

目的:研究腹部超声和会阴超声测量宫颈长度在预测早产儿中的价值对比。方法:选取有早产症状的妊娠女性47例为研究对象,其中参照组23例,采用腹部超声检测;试验组24例,采用会阴超声检测宫颈长度。观察对比两组宫颈实现率、不同宫颈长度的早产率以及预测早产的敏感度和阴、阳性预测值情况。结果:两组患者经过检测后,试验组的宫颈实现率显著高于参照组,差异有统计学意义(P <0. 05)。两组患者宫颈长度<25 mm的早产率显著高于宫颈长度≥25 mm者,差异有统计学意义(P <0. 05)。试验组宫颈长度<25 mm者预测早产的敏感度为75%,显著高于参照组的43. 49%,差异有统计学意义(P <0. 05)。结论:会阴超声检测具有更高的显示率,腹部超声检测有更低的敏感度,而两种方法检测显示,宫颈长度≥25 mm者早产率更低。

Objective To compare the value of abdonfinal ultrasound and perineal ultrasound in measuring the length of the cervix in predicting preterm infants. Method Forty - seven pregnant women with symptoms of preterm birth were enrolled in this study. Twenty - three of them were in the reference group and were tested by abdonfinal ultrasonography. Twenty - four patients in the experimental group were exanfined by perineal ultrasonography. The incidence of cervical cancer, the rate of premature birth at different cervical lengths, the predictive value of preterm labor and the predictive values of negative and positive rates were com- pared between the two groups. Results After two groups of patients were tested, the experimental group＇s cervical rate was signifi- cantly higher than the reference group （ P 〈 0. 05 ）. The preterm birth rates of CL 〈 25 ran1 for both groups were significantly higher than those for CL ≥ 25 ran1 （ P 〈 0. 05 ）. The experimental group of cervical length CL 〈 25 mm predicted the sensitivity of preterm labor was 75 % , significantly higher than the reference group of 43.49% （P 〈 0. 05 ）. Conclusion Perineal ultrasonography has a higher rate of display, lower abdominal sensitivity ultrasound detection, and two methods show that the cervical length of not less than 25ram lower preterm birth rate..