Second Trimester Cervical Length and Its Association with Vaginal Birth after Cesarean Delivery.

Publication/Presentation Date

1-1-2016

Abstract

OBJECTIVE: This study aims to evaluate the relationship between cervical length (CL) and trial of labor after cesarean (TOLAC) delivery.

STUDY DESIGN: This retrospective cohort study evaluated second trimester CL and likelihood of successful TOLAC. Women undergoing TOLAC from January 2009 to December 2011 who underwent transvaginal ultrasound CL between 18(0/7) to 23(6/7) weeks gestation were included. The threshold for CL was assessed using a receiver operating characteristics curve, with ≥ 45 mm determined to be the optimal threshold. Women with CL <  45 mm were compared with women with CL ≥ 45 mm with respect to TOLAC. Multivariate analysis was used to assess the association of CL with TOLAC.

RESULTS: A total of 45 patients met inclusion criteria, 14 (31%) with a long CL (≥ 45 mm) and 31 (69%) with CL <  45 mm. Groups did not differ in demographics or factors predictive of vaginal birth after cesarean (VBAC) delivery. More women with CL <  45 mm had successful VBAC (81%) than women with long CL (43%, relative risk 1.9, p = 0.03). Prior vaginal delivery and CL <  45 mm were both significant predictors of VBAC (odds ratio 1.8 and 2.0, respectively).

CONCLUSION: CL <  45 mm is associated with VBAC.

Volume

33

Issue

1

First Page

20

Last Page

23

ISSN

1098-8785

Disciplines

Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods

PubMedID

26084747

Department(s)

Administration and Leadership

Document Type

Article

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