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目的探讨胎儿纤连蛋白(fFN)、人绒毛膜促性腺激素(hCG)和阴道B超测宫颈长度联合检查预测早产的价值。方法 ELISA法测量其宫颈阴道分泌物中fFN和hCG的水平,采用阴道B超测量先兆早产孕妇宫颈长度,分析各指标单独及联合检测与早产的关系及其预测妊娠结局的价值。结果 fFN、hCG和阴道B超测宫颈长度联合检查预测早产的平均敏感度、平均特异度、阳性预测值和阴性预测值分别为98.9%、59.6%、95.2%和99.5%。结论 fFN、hCG和阴道B超测宫颈长度联合检查对预测早产有较高的价值。
Objective To investigate the value of combined detection of fetal fibronectin (fFN), human chorionic gonadotropin (hCG) and vaginal B-ultrasound in detecting cervical premature labor. Methods The levels of fFN and hCG in cervical vaginal secretions were measured by ELISA. The length of cervix in pregnant women with threatened premature labor was measured by vaginal ultrasound. The relationship between the indexes of single and combined testing and preterm labor was analyzed. The predictive value of pregnancy outcome was analyzed. Results The average sensitivity, average specificity, positive predictive value and negative predictive value of the combined detection of fFN, hCG and vaginal B-test cervical length were 98.9%, 59.6%, 95.2% and 99.5% respectively. Conclusion The combination of fFN, hCG and vaginal B-ultrasound cervical length test has high value in predicting preterm birth.