Birth Outcomes Associated With Assisted Vaginal Birth in an Occipito-Posterior Position: Secondary Analyses of a Randomised Controlled Trial and Cohort Study.

ABSTRACT:

Objective

To investigate the morbidity associated with assisted vaginal birth (AVB) and an occipito-posterior (OP) fetal head position.

Design

Observational study based on secondary analyses of a randomised controlled trial and cohort study.

Setting

Two university affiliated maternity hospitals in Ireland.

Population

A combined cohort of 1081 nulliparous women at term who were assessed for AVB in the second stage of labour.

Methods

Univariable and multivariable logistic regression analyses were performed.

Main outcome measures

Postpartum haemorrhage (PPH), obstetric anal sphincter injury (OASI), fetal acidosis, neonatal trauma, failed or abandoned AVB leading to caesarean section (CS).

Results

Of the 1081 AVBs, a total of 192 (17.8%) had an

SUBMITTER: Hayes L 

PROVIDER: S-EPMC12678036 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature