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The Effect of Crowning Time on Levator Ani Muscle Avulsion

NCT07210788 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 92

Last updated 2025-10-07

No results posted yet for this study

Summary

Levator ani muscle is one of the main components of perineal muscles and plays a crucial role in urinary continence and pelvic organ support. An avulsion, detachment from its insertion, of this muscle can occur during vaginal birth. It is well known that this major injury can cause many symptoms such as urinary incontinence and pelvic organ prolapses. Some risk factors of this important injury have been identified in the literature, such as the use of forceps. However, to date, no study has evaluated the impact of the crowning of the fetal head during labor on perineal muscles, specifically the levator ani muscle avulsion. Hence, the objectives of this study are to evaluate the association i) the time of the crowning of the fetal head during labor and levator ani muscle avulsion, ii) the time of the crowning of the fetal head and urogynecological symptoms, and iii) use of episiotomy and levator ani muscle avulsion. Postpartum primiparous women will undergo a 4D transperineal ultrasound to evaluate their pelvic muscles and complete questionnaires assessing urogynecological symptoms.

Conditions

  • Time of the Crowning of the Fetal Head
  • Levator Ani Avulsion
  • Labor Delivery
  • Postpartum

Sponsors & Collaborators

  • Centre de recherche du Centre hospitalier universitaire de Sherbrooke

    collaborator OTHER

  • Université de Sherbrooke

    lead OTHER

Principal Investigators

  • Mélanie Morin, PT · Université de Sherbrooke

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-04-23
Primary Completion
2026-11-30
Completion
2027-02-28

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07210788 on ClinicalTrials.gov