Clinical trial Recruiting at 1 site Interventional Ages 18 and up Women only

High versus low segmental hysterotomy and uterine scar defects after a first cesarean

Official title: High Segmental Hysterotomy vs. Low Segmental Hysterotomy: Association With the Incidence of Uterine Wall Defects After Cesarean Section

Run by Fundacion Clinica Valle del Lili · NCT06620432 · Data updated 2026-11-12

We will test whether high or low segmental hysterotomy, with or without cross-suturing, leads to fewer uterine scar defects in people having their first cesarean.

Quick facts

Study typeInterventional
Ages18 Years and up
SexWomen only
Enrollment168 (estimated)
SponsorFundacion Clinica Valle del Lili
Academic / other
Locations1 site (Cali, Valle del Cauca Department)
StatusRecruiting
StartedJune 12, 2025
Main results expectedNovember 30, 2026
Study endsAugust 31, 2027
Registry record updatedMay 7, 2026
Trial IDNCT06620432 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Pregnant people aged 18 or older at 36–42 weeks gestation who are scheduled for their first cesarean and are able to provide informed consent are eligible.

Probably not a fit

People with prior myometrial surgery (e.g., myomectomy), uterine anatomical disorders, coagulation or connective tissue disorders, hemodynamic instability, or who are not undergoing their first cesarean are unlikely to benefit from this comparison.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This single-blind, randomized trial assigns pregnant participants having their first cesarean to one of four groups combining high or low segmental hysterotomy with crossed or non-crossed hysterorrhaphy. The assigned incision and closure are performed by the attending gynecologist at the time of cesarean. Investigators will record intraoperative findings, postoperative recovery, and surgical complications. A transvaginal pelvic ultrasound will be done once between 6 and 16 weeks after delivery to look for isthmocele (uterine niche) and characterize its size and location.

Why it matters

Potential benefit: If successful, the procedures identified could lower the rate of uterine scar defects (isthmoceles) and related surgical complications after a first cesarean, improving healing and future reproductive outcomes.

How similar studies have gone: Some observational studies and surgical series suggest that incision level and closure technique influence isthmocele formation, but randomized comparisons of high versus low segmental hysterotomy together with crossed versus non-crossed closure are limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pregnant women aged ≥ 18 years.
* Confirmed pregnancy through clinical history or ultrasound between 36 and 42 weeks of gestation.
* Indication by the attending gynecologist for a first cesarean section, either emergent or elective.

Exclusion Criteria:

* History of myometrial intervention, such as myomectomy.
* History of genetic or acquired conditions that alter the anatomy of the uterus.
* History of coagulation disorders.
* History of connective tissue disorders, such as Lupus and Scleroderma, which may affect healing.
* Hemodynamically unstable patients due to a clinical condition prior to performing the cesarean section.
* Failure to sign the informed consent.

Where it's running

  • Fundación Valle del Lili
    Cali, Valle del Cauca Department, Colombia
    Recruiting

Study contacts

  • Principal investigator: Albaro J. Nieto, M.D. — Fundacion Clinica Valle del Lili
  • Study coordinator: Albaro J. Nieto, M.D.
  • Email: albaro.nieto@fvl.org.co
  • Phone: 3319090

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.