How does uterine contractile activity affect the success of trial of labour after caesarean section, and the risk of uterine rupture? An exploratory, blinded analysis of a cohort from a randomised controlled trial.

ABSTRACT:

Objective

To investigate the impact of uterine contractile activity on the outcome of trial of labour after caesarean section (TOLAC).

Design

Secondary, blinded analyses of a prospective TOLAC cohort.

Setting

Two labour wards, one in a university tertiary hospital and the other in a central hospital.

Population

A total of 194 TOLAC parturients with intrauterine tocodynamometry during labour.

Methods

Analysis of intrauterine pressure, frequency of contractions and baseline tonus of uterine muscle in 30-minute periods for 4 hours before birth.

Main outcome measures

Primary outcome: uterine contractile activity during TOLAC. Secondary aims: contributors associated with failed TOLAC and uterine rupture.

Results

TOLAC succeeded in 74% of cases.

SUBMITTER: Hautakangas TM 

PROVIDER: S-EPMC9299582 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature