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Related Experiment Video

Updated: May 17, 2026

Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings

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Published on: October 25, 2015

Amniotomy for shortening spontaneous labour.

R M D Smyth¹, S K Alldred, C Markham

¹University of Liverpool, Department of Public Health, School of Population, Community and Behavioural Sciences, Whelan Building, Quadrangle, Liverpool, UK, L69 3GB. rsmyth@liverpool.ac.uk

The Cochrane Database of Systematic Reviews

|October 19, 2007

Summary

Amniotomy, or breaking waters, does not significantly shorten labor or improve maternal satisfaction. This procedure, commonly used in childbirth, showed no clear benefits and a potential increase in C-sections.

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Area of Science:

Obstetrics and Gynecology
Perinatal Care
Evidence-Based Medicine

Background:

Amniotomy (artificial rupture of membranes) is a frequent obstetric procedure aimed at accelerating labor contractions.
Concerns exist regarding potential adverse effects of amniotomy on both mother and infant.

Purpose of the Study:

To evaluate the effectiveness and safety of amniotomy alone for shortening spontaneous and prolonged labors.
To assess amniotomy's impact on labor duration, maternal satisfaction, and infant outcomes.

Main Methods:

Systematic review of randomized controlled trials (RCTs) sourced from the Cochrane Pregnancy and Childbirth Group's Trials Register.
Included 14 RCTs involving 4893 women, comparing amniotomy alone versus expectant management (preserving membranes).

Main Results:

No statistically significant difference in the length of the first stage of labor or maternal satisfaction was observed.
Amniotomy was not associated with a significant difference in low Apgar scores.
A trend towards an increased risk of cesarean section was noted, though not statistically significant.

Conclusions:

The current evidence does not support the routine use of amniotomy in standard labor management.
Findings should inform discussions between women and healthcare providers regarding the decision to undergo amniotomy.