Lying a certain way may help babies turn during birth
NCT ID NCT01854450
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested whether having a mother lie on her side in a specific position (asymmetrical lateral decubitus) during labor could help turn a baby that is facing the wrong way (occipitoposterior position). 326 women were randomly assigned to either this position or usual care. The goal was to see if the baby's head rotated to a better position within one hour.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- maternal posturing (asymmetrical lateral decubitus)
- What this could lead to
- If effective, this simple position change could reduce the need for interventions like cesarean sections during labor.
- What could go wrong
- The trial is completed but results may not apply to all labors. The position is only tested for a short period and may not work for everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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326 people
The number who actually took part.
- Start date
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May 2013
- Finished
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May 2015
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * women older than 18 years * Gestational age ≥ 37SA, * Ruptured membranes, * single living fetus in cephalic presentation with an occipitoposterior position clinically diagnosed between 2 and 9 cm dilated and confirmed by ultrasound. * Affiliation to a social security scheme (beneficiary or assignee) * Signing the consent Exclusion Criteria: * Fetal presentation other than posterior * Multiple pregnancy, * Breech presentation * History of previous cesarean section * Fetal death in utero, termination of pregnancy * Fetal intrauterine fetal growth restriction \<5e percentile, * Fetal malformation, * Women younger than 18 years old, * Women do not understand French, * Women with psychiatric condition
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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CHU côte de nacre
Caen, France
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Maternité du CH d'Avranches-Granville
Avranches-Granville, France
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Port-Royal Maternity Hospital
Paris, 75005, France
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bluets maternity Hospital
Paris, France