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 type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | Women only |
| Enrollment | 168 (estimated) |
| Sponsor | Fundacion Clinica Valle del Lili Academic / other |
| Locations | 1 site (Cali, Valle del Cauca Department) |
| Status | Recruiting |
| Started | June 12, 2025 |
| Main results expected | November 30, 2026 |
| Study ends | August 31, 2027 |
| Registry record updated | May 7, 2026 |
| Trial ID | NCT06620432 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
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.