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Related Experiment Video

Updated: Jun 13, 2026

External Cephalic Version: Is it an Effective and Safe Procedure?

External Cephalic Version: Is it an Effective and Safe Procedure?

Published on: June 6, 2020

A new perspective on VBAC: a retrospective cohort study.

Genia Rozen¹, Antony M Ugoni, Penny M Sheehan

¹Department of Obstetrics and Gynaecology, Royal Women's Hospital, Flemington Road, Parkville, Victoria 3050, Australia. geniarozen@hotmail.com

Women and Birth : Journal of the Australian College of Midwives

|May 8, 2010

Summary

Vaginal birth after caesarean (VBAC) has similar maternal and neonatal risks compared to first-time vaginal births. This finding supports VBAC counseling by offering a more relevant risk comparison for expectant mothers.

Related Experiment Videos

Last Updated: Jun 13, 2026

External Cephalic Version: Is it an Effective and Safe Procedure?

External Cephalic Version: Is it an Effective and Safe Procedure?

Published on: June 6, 2020

Area of Science:

Obstetrics and Gynecology
Maternal-Fetal Medicine
Reproductive Health

Background:

Previous safety assessments of vaginal birth after caesarean (VBAC) often compared it to elective repeat caesarean sections (ERCS), despite differing risk profiles.
Comparing VBAC to women who have not had a previous vaginal delivery offers a more relevant risk assessment for counseling purposes.

Purpose of the Study:

To determine the appropriate comparison group for counseling women undergoing planned VBAC.
To compare VBAC outcomes with elective repeat caesarean section (ERCS) versus other nulliparous women undergoing vaginal birth.

Main Methods:

Retrospective cohort study of 21,389 deliveries, stratified by Robson's criteria (groups 1-5).
Maternal and neonatal outcomes, including uterine rupture, postpartum hemorrhage (PPH), severe tears, and neonatal morbidity, were analyzed.

Main Results:

VBAC showed no increased risk of PPH, vaginal tears, or neonatal complications compared to nulliparous women in spontaneous or induced labor (Robson groups 1 and 2).
Uterine rupture rates were low across all studied groups with no identified correlation.

Conclusions:

Maternal and neonatal morbidity associated with VBAC is comparable to that of primiparous women undergoing vaginal birth.
These findings provide a relevant risk comparison to aid in counseling women choosing between VBAC and ERCS.