摘要
目的 经阴道超声测量宫颈长度对足月初产妇临产时间及分娩方式预测的价值。方法 对 98例足月初产妇行阴道超声测量孕妇宫颈长度、宫颈管宽度、宫颈内口楔行区宽度 ,同时由专人行 Bishop评分。结果 宫颈长度、宫颈管宽度与 Bishop评分显著相关 (r=0 .5 5、0 .4 5 ,P <0 .0 5 ) ;宫颈长度、宫颈管宽度、宫颈Bishop评分均与临产时间显著相关 (r=0 .6 5、- 0 .5 2、- 0 .4 2 ,P<0 .0 1) ,其中以宫颈长度的预测效果最好。当宫颈长度≤ 30 mm时 ,平均临产时间为 9.8h,剖宫产率为 34.7% ;宫颈长度 >30 m m时 ,平均临产时间为 2 6 .5 h,剖宫产率 80 % ,两者比较差异有显著性 (P<0 .0 0 1)。宫颈长度是分娩方式的唯一相关因素 (r=0 .6 2 ,P<0 .0 0 1)。结论 经阴道超声测量宫颈长度可以预测足月初产妇的临产时间和分娩方式 ,优于传统的 Bishop评分。
Objective To determine the predictive effect of transvaginal ultrasonograpic cervical measurements in labor induction among primiparae.Methods Transvaginal ultrasonographic cervical measurements were performed and Bishop scores were determined in 98 primiparae.Data of the parity,gestational age,mode of delivery,induction agent,induction-onset,Bishop score and cervical measurements were collected.Results Cervical length and width significantly correlated with the Bishop score(r=0.55、0.45 respectively,P<0.05);Cervical length,width,and Bishop score significantly correlated with the onset time of term labor respectively(r=0.65、-0.52、-0.42,P<0.01).The predictive value of the cervical length was thd best.If the cut-off value of the cervical length was≥30 mm,the parturient induction time was 9.8 h,and the cesarean section rate was 34.7%;If the cervical length was≤30 mm,the parturient induction time was 26.5 h,and the cesarean section rate was 80%.The difference betweent them was significant (P<0.001).Cervical length was the best linear predictor of delivery mode(r=0.62,P<0.001).Conclusions The cervical length measured on transvaginal ultrasonography is the independent predictor for the parturient induction time and the delivery mode for the primiparae,which is better than the Bishop score.
出处
《中国超声诊断杂志》
2005年第1期41-43,共3页
Chinese Journal of Ultrasound Diagnosis
