ClinicalTrials.gg
CompletedNCT06857552Updated Mar 4, 2025

The Effect of Ultrasound Guided Visual Biofeedback Performed by Midwifes on the Duration of the Active Second Stage of Labor

An interventional study of Visual biofeedback using transperineal ultrasound (TPUS) in Labor Stage, Second, sponsored by Kaplan Medical Center. Completed at 1 site in Israel. Open to female participants, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-03-04.

Sponsored by Kaplan Medical Center · Not applicable, Interventional, and Other

From the registry’s dates

  • Registered 3 years 9 months after the study started (first participant enrolled May 2021, registered Feb 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
324
Allocation
Randomized
Sex
Female
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Study summary

The goal of this randomized controlled trial is to investigate whether using of coached sonographic pushing will decrease the length of the second stage of labor and the rate of operative deliveries.

Researchers will compare women who undergo the traditional coached pushing to women who undergo visual biofeedback coached pushing.

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Conditions studied

  • Labor Stage, Second

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Keywords

  • Prolonged second stage
  • Transperineal ultrasound
  • biofeedback
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In context

Neoplasm Metastasis

4,040 studies on the registry are indexed under Neoplasm Metastasis; 886 are open to participants now.

This study's enrollment of 324 is above the median of 50 across 3,268 interventional studies indexed under Neoplasm Metastasis.

Browse Neoplasm Metastasis studies →

Lead sponsor

Kaplan Medical Center is the lead sponsor of 37 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
Female
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Singleton pregnancy
  • Nulliparous
  • 37-42 weeks of gestation
  • Under neuroaxial analgesia
  • Reached the second stage of labor
  • An estimated fetal weight between 2500-4000 grams

Exclusion criteria

Exclusion Criteria:

  • Women who arrived in active labor and delivered before being assessed by a physician.
  • Women with for vaginal birth
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

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Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
324 participants (actual)

Study arms

  • Experimental
    Coached maternal pushing via ultrasound (US)

    The study group, will have coached pushing using trans-perinal ultrasound (US) performed by the midwife during the active stage of labor, and after diagnosis of complete dilatation. Further, if not delivered within 2 hours of complete dilatation, a third coaching will be conducted. The coaching process in each will be performed for 10 minutes and for at least 3 contractions. In the study group the women will observe the fetal head movements on the screen in front of her.

    Other: Visual biofeedback using transperineal ultrasound (TPUS)

  • No intervention
    Traditional coached maternal pushing

    The control group will have the traditional coached pushing (vaginal) performed by a midwide during the active stage of labor, and after diagnosis of complete dilatation. Further, if not delivered within 2 hours of complete dilatation, a third coaching will be conducted. The coaching process in each will be performed for 10 minutes and for at least 3 contractions The women in the controlled group will have the vocal coaching of the midwife during the contractions.

Interventions

  • OtherVisual biofeedback using transperineal ultrasound (TPUS)

    The intervention (study) arm will recieve coached maternal pushing via transperineal ultrasound (US) with visual biofeedback

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What researchers measure

Primary outcomes

  1. Length of the second stage of labor

    To investigate whether using of coached sonographic pushing will decrease the length of the second stage of labor.

    Time frame: At baseline

  2. Mode of delivery

    To investigate whether using of coached sonographic pushing will affect the rate of operative deliveries.

    Time frame: At baseline

Secondary outcomes

  1. Maternal outcomes

    Maternal 3rd or 4th degree tear rate, postpartum hemorrhage rates

    Time frame: At baseline

  2. Neonatal Outcomes

    Neonatal cord PH

    Time frame: At baseline

  3. Neonatal Outcomes

    Apgar score less than 7 in 5 minutes.

    Time frame: At baseline

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Study locations

1 site
  • Kaplan Medical Center
    Rehovot, Israel
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References and documents

Publications

  • Bellussi F, Alcamisi L, Guizzardi G, Parma D, Pilu G. Traditionally vs sonographically coached pushing in second stage of labor: a pilot randomized controlled trial. Ultrasound Obstet Gynecol. 2018 Jul;52(1):87-90. doi: 10.1002/uog.19044. Epub 2018 May 30. PubMed 29532533 ↗
  • Gilboa Y, Frenkel TI, Schlesinger Y, Rousseau S, Hamiel D, Achiron R, Perlman S. Visual biofeedback using transperineal ultrasound in second stage of labor. Ultrasound Obstet Gynecol. 2018 Jul;52(1):91-96. doi: 10.1002/uog.18962. Epub 2018 May 29. PubMed 29155474 ↗

Individual participant data

Plan to share: Undecided

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from May 2021 to primary completion in May 2021, 0 months.

Of 291 non-industry interventional studies with no phase under Neoplasm Metastasis, half reached primary completion within 58 months of starting (the median), counting those still running; a quarter within 28 and three quarters within 93. This study's 0 months is below that.

Counting every sponsor, half of 316 studies reached it within 54 months; a quarter within 28 and three quarters within 91.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 23, 2025
First posted
Mar 4, 2025
StartActual
May 3, 2021
Primary completionActual
May 3, 2021
CompletionActual
Sep 7, 2024
Last update
Mar 4, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 4, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06857552
Lead sponsor
Kaplan Medical Center
Responsible party
Roni Levy (Head of Labor and Delivery, Kaplan Medical Center) — Principal investigator
First posted
Mar 4, 2025
Start date
May 3, 2021
Primary completion
May 3, 2021
Completion
Sep 7, 2024
Last update
Mar 4, 2025

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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