宫颈长度与足月自然分娩风险

Cervical length and the risk of spontaneous labor at term.

作者信息

Tolaymat L L, Gonzalez-Quintero V H, Sanchez-Ramos L, Kaunitz A, Wludyka P, O'Sullivan M J, Martin D

机构信息

Department of Obstetrics and Gynecology, University of Florida College of Medicine-Jacksonville, Jacksonville, FL 32209, USA.

出版信息

J Perinatol. 2007 Dec;27(12):749-53. doi: 10.1038/sj.jp.7211819. Epub 2007 Aug 30.

DOI:10.1038/sj.jp.7211819

PMID:17762846

Abstract

OBJECTIVE

To investigate the relationship between cervical length (CL) at 37 to 40 weeks and delivery within 7 days and delivery by 41 weeks.

STUDY DESIGN

We performed transvaginal ultrasound to measure CL in women with singleton gestations at 37 to 40 weeks. We then used a receiver operating characteristic curve (ROC) to assess the relationship between CL and delivery within 7 days and delivery by 41 weeks.

RESULT

For the 120 women included in the analysis, the mean CL (+/-s.d.) was 25.3+/-9.8 mm. The logistic regression model to predict each of the outcomes includes gestational age at ultrasound (GA-US) and CL. Neither birthweight, nor parity seems to affect the probability of delivery within 7 days. The ROC curve was used to assess the probability of spontaneous labor within 7 days at each CL measurement. The likelihood ratio of delivery within 7 days when CL is < or = 10 mm is 12.

CONCLUSION

CL measurement at 37-40 weeks is an independent predictor of delivery within 7 days and delivery by 41 weeks regardless of GA-US. This information can be utilized when counseling patients regarding the management of term pregnancies.

摘要