预测引产成功的变量。

Variables that predict the success of labor induction.

作者信息

Bueno Beatriz, San-Frutos Luis, Salazar Francisco, Pérez-Medina Tirso, Engels Virginia, Archilla Beatriz, Izquierdo Fernando, Bajo José

机构信息

Department of Obstetrics and Gynecology, Santa Cristina University Hospital, Madrid, Spain.

出版信息

Acta Obstet Gynecol Scand. 2005 Nov;84(11):1093-7. doi: 10.1111/j.0001-6349.2005.00881.x.

DOI:10.1111/j.0001-6349.2005.00881.x

PMID:16232178

Abstract

BACKGROUND

To analyze the clinical and sonographic variables that affect the success of labor induction.

METHODS

Bishop score, cervical length, and parity were studied in 196 pregnant women in the prediction of successful vaginal delivery within 24 hr of induction. Logistic regression and segmentation analysis were performed.

RESULTS

Cervical length [odds ratio (OR) 1.089, P<0.001], Bishop score (OR 0.751, P=0.001), and parity (OR 6.85, P<0.001) predict the success of labor induction. The best cut-off points for cervical length were <16.5, 16.5--27, and >27 mm (P=0.0016). In the analysis of the Bishop score, we also obtained three discriminatory points, 0, 1--4, and >4 (P=0.0006), that best predict the labor induction. Finally, in a global analysis of the variables studied, the best statistic sequence that predicts the labor induction was found when we introduced parity in the first place. The success of labor induction in nulliparous was 50.77 and 83.33% in multiparous (P=0.0001).

CONCLUSIONS

Cervical length, Bishop score, and parity predict the success of labor induction.

摘要

背景

分析影响引产成功率的临床及超声变量。

方法

对196名孕妇的 Bishop 评分、宫颈长度及产次进行研究，以预测引产24小时内成功阴道分娩的情况。进行了逻辑回归和分段分析。

结果

宫颈长度[比值比（OR）1.089，P<0.001]、Bishop 评分（OR 0.751，P=0.001）及产次（OR 6.85，P<0.001）可预测引产成功率。宫颈长度的最佳截断点为<16.5、16.5 - 27及>27 mm（P=0.0016）。在 Bishop 评分分析中，我们还得到了三个区分点，即0、1 - 4及>4（P=0.0006），它们最能预测引产情况。最后，在对所研究变量的综合分析中，当首先引入产次时，发现了预测引产的最佳统计序列。初产妇引产成功率为50.77%，经产妇为83.33%（P=0.0001）。