PROphylactic Manual RotatIon in the Second stagE of Labor

NCT ID: NCT05175040

Last Updated: 2024-03-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

42 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-04

Study Completion Date

2023-12-15

Brief Summary

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This is a randomized controlled trial to determine whether prophylactic manual rotation for fetuses identified to have persistent occiput posterior or occiput transverse presentation (POP/OTP) at the initiation of the second stage of labor in nulliparous individuals reduces rates of operative delivery, second stage of labor duration, and resultant adverse clinical outcomes compared to standard management of the second stage of labor.

Detailed Description

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This is a randomized controlled trial in which nulliparous individuals with a term, singleton gestation who undergo a trial of labor with neuraxial anesthesia and have a fetus presenting with persistent occiput posterior or occiput transverse presentation (POP/OTP) confirmed by ultrasound at the initiation of the second stage of labor will be randomized to either prophylactic manual rotation or sham rotation. The study aims to evaluate whether prophylactic manual rotation reduces the incidence of operative delivery (a composite of cesarean and operative vaginal delivery), second stage of labor duration, and maternal and neonatal morbidity among nulliparous individuals with a fetus with POP/OTP at the initiation of the second stage of labor.

Individuals will be screened for eligibility upon admission to Labor and Delivery and approached for potential recruitment with informed consent obtained on enrollment. Once women achieve complete cervical dilation and within the first fifteen minutes of commencement of pushing, a bedside ultrasound will be performed to determine the fetal position. Those with POP/OTP will be randomized at that time point to either prophylactic manual rotation or sham rotation. The patient's primary obstetrician will be blinded to the randomization arm. The electronic health record will be reviewed and used to assess trial outcomes. The study will enroll 350 individuals, powered to detect a 15% reduction in operative delivery (instrumental vaginal delivery or cesarean section) with prophylactic manual rotation of POP/OTP, from a baseline risk of 50% without manual rotation to 35% with prophylactic rotation at initiation of the second stage of labor.

Conditions

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Labor Complication Pregnancy Related

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Caregivers
Both the study participant and her primary obstetrician will be blinded to the assigned randomization arm prior to delivery, as involvement in this research study should not change their care. Clinical management will be left to the discretion of each participant's primary obstetrician managing her labor, according to standard obstetrical care, who again will not be involved in the research-related study procedures.

Study Groups

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Prophylactic manual rotation

Prophylactic manual rotation involves a vaginal examination performed with an obstetric provider's hands to turn the baby from a position in which the baby's face is looking up in the direction of the ceiling (occiput posterior) or to the side (occiput transverse) to a position in which the baby's face is looking down in the direction of the mother's spine (occiput anterior). Prophylactic manual rotation will occur at the initiation of pushing once the individual achieves complete cervical dilation.

Group Type EXPERIMENTAL

Prophylactic manual rotation

Intervention Type PROCEDURE

Prophylactic manual rotation, performed in the experimental arm, involves a vaginal examination performed with an obstetric provider's hands to turn the baby from a position in which the baby's face is looking up in the direction of the ceiling (occiput posterior) or to the side (occiput transverse) to a position in which the baby's face is looking down in the direction of the mother's spine (occiput anterior). Prophylactic manual rotation will occur at the initiation of pushing once the individual achieves complete cervical dilation, performed by a trained study investigator (M.D. or midwife) to maintain blinding of the patient's primary obstetrician.

Sham rotation

Sham rotation involves a vaginal exam that obstetric providers commonly do with their hands to assess cervical dilation and fetal position during routine labor, and will occur at the initiation of pushing once the individual achieves complete cervical dilation.

Group Type SHAM_COMPARATOR

Sham rotation

Intervention Type PROCEDURE

Sham rotation, performed in the comparator arm, involves a vaginal exam that obstetric providers commonly do with their hands to assess cervical dilation and fetal position during routine labor, and will occur at the initiation of pushing once the individual achieves complete cervical dilation. Duration of the vaginal exam for sham rotation will be consistent with that used for prophylactic manual rotation and will be performed by a trained study investigator (M.D. or midwife) to maintain blinding of the patient's primary obstetrician.

Interventions

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Prophylactic manual rotation

Prophylactic manual rotation, performed in the experimental arm, involves a vaginal examination performed with an obstetric provider's hands to turn the baby from a position in which the baby's face is looking up in the direction of the ceiling (occiput posterior) or to the side (occiput transverse) to a position in which the baby's face is looking down in the direction of the mother's spine (occiput anterior). Prophylactic manual rotation will occur at the initiation of pushing once the individual achieves complete cervical dilation, performed by a trained study investigator (M.D. or midwife) to maintain blinding of the patient's primary obstetrician.

Intervention Type PROCEDURE

Sham rotation

Sham rotation, performed in the comparator arm, involves a vaginal exam that obstetric providers commonly do with their hands to assess cervical dilation and fetal position during routine labor, and will occur at the initiation of pushing once the individual achieves complete cervical dilation. Duration of the vaginal exam for sham rotation will be consistent with that used for prophylactic manual rotation and will be performed by a trained study investigator (M.D. or midwife) to maintain blinding of the patient's primary obstetrician.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Pregnant
* Age 18 years or greater
* English-speaking
* Nulliparous
* Singleton gestation
* Planning a vaginal birth
* Have neuraxial anesthesia
* Term gestation (≥37 weeks' gestation)
* Ruptured membranes
* Complete cervical dilation
* Cephalic presenting fetus
* Fetus presenting with occiput posterior or occiput transverse position confirmed by ultrasound

Exclusion Criteria

* Pregnancies with intrauterine fetal demise
* Pregnancies affected by major fetal anomaly
* Maternal or fetal contraindication to vaginal delivery, including operative vaginal delivery
* Fetal malpresentation, including brow or face presentation
* Category III fetal heart rate tracing at time of randomization
* Duration of pushing already exceeding 15 minutes in the second stage of labor
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Northwestern University

OTHER

Sponsor Role lead

Responsible Party

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Stephanie Fisher

Assistant Professor of Obstetrics and Gynecology (Maternal Fetal Medicine)

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Stephanie Fisher, MD MPH

Role: STUDY_DIRECTOR

Northwestern University

Locations

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Northwestern Memorial Hospital

Chicago, Illinois, United States

Site Status

Countries

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United States

References

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Reference Type BACKGROUND
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Shaffer BL, Cheng YW, Vargas JE, Caughey AB. Manual rotation to reduce caesarean delivery in persistent occiput posterior or transverse position. J Matern Fetal Neonatal Med. 2011 Jan;24(1):65-72. doi: 10.3109/14767051003710276. Epub 2010 Mar 30.

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Verhaeghe C, Parot-Schinkel E, Bouet PE, Madzou S, Biquard F, Gillard P, Descamps P, Legendre G. The impact of manual rotation of the occiput posterior position on spontaneous vaginal delivery rate: study protocol for a randomized clinical trial (RMOS). Trials. 2018 Feb 14;19(1):109. doi: 10.1186/s13063-018-2497-7.

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Other Identifiers

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00215006

Identifier Type: -

Identifier Source: org_study_id

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