International Journal of Medical Sciences

Impact factor
2.399

19 October 2017

ISSN 1449-1907 News feeds of published articles

My Manuscript | My Account

Journal of Genomics now in PubMed/PubMed Central. Submit manuscript...

Journal of Biomedicinenew

Theranostics

Journal of Cancer

Oncomedicine

International Journal of Biological Sciences

Journal of Genomics

Journal of Bone and Joint Infection (JBJI)

Nanotheranostics

PubMed Central Indexed in Journal Impact Factor

Int J Med Sci 2012; 9(9):738-742. doi:10.7150/ijms.5042

Research Paper

Clinical Efficacy of Cervical Length and Volume for Prediction of Labor Onset in VBAC Candidates

Yun Sung Jo, Gui Se Ra Lee, Narinay Kim, Dong Gyu Jang, Sa Jin Kim, Young Lee

Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Abstract

Background: The purpose of this research is to discover whether measurement of cervical length and cervical volume at term is helpful in predicting the onset of labor in VBAC candidates.

Methods: Transvaginal sonographic evaluations of the cervixes of pregnant women who desired to undergo VBAC were performed between 36 - 40 weeks gestation. Clinical information such as labor onset time, gestational age at delivery and delivery mode was gathered from medical records.

Results: A total of 514 pregnant women participated in this study. Cervical length was significantly longer in the group that delivered 7 days or more after measurement than in the group that delivered within 7 days of measurement (43±0.77 cm vs. 2.99±0.72 cm, p< 0.001). Cervical volume was significantly larger in the group that delivered at and after 7 days than in the group that delivered within 7 days (29.21±11.62 cm3 vs. 34.07±13.41 cm3, p=0.014). The cervical length ROC curve was significantly more predictive than the cervical volume ROC curve (AUC: 0.711 vs 0.594, p= 0.001). There were no significant differences between the combined cervical length/volume ROC curve and the cervical length ROC curve alone (p= 0.565). The AUC of the cervical length ROC curve to predict postterm pregnancy was 0.729.

Conclusion: Measuring cervical length is helpful in predicting the onset of spontaneous labor within 7 days and posterm delivery in VBAC candidates.

Keywords: Cervical length, Cervical volume, VBAC, labor.

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) License. See http://ivyspring.com/terms for full terms and conditions.
How to cite this article:
Jo YS, Lee GSR, Kim N, Jang DG, Kim SJ, Lee Y. Clinical Efficacy of Cervical Length and Volume for Prediction of Labor Onset in VBAC Candidates. Int J Med Sci 2012; 9(9):738-742. doi:10.7150/ijms.5042. Available from http://www.medsci.org/v09p0738.htm