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Vasopressin vs. Uterine Artery Clamping for Laparoscopic Cesarean Scar Niche Repair

NCT07446933 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2026-03-03

No results posted yet for this study

Summary

This study evaluates two methods for controlling intraoperative bleeding during laparoscopic surgery to repair a cesarean scar niche (CSN). It compares the effectiveness of intramyometrial vasopressin injection against bilateral temporary clamping of the uterine arteries using laparoscopic bulldog clips. The goal is to determine if vasopressin injection is non-inferior to arterial clamping in reducing blood loss and maintaining surgical field visibility.

Conditions

  • Cesarean Section Complications

Interventions

DRUG

Vasopressin Group

Patients receive a local injection of 12 mL of diluted vasopressin into the myometrium directly surrounding the cesarean scar niche. This is performed during the laparoscopic procedure, just before the excision of the fibrous scar tissue, to constrict local blood vessels and minimize intraoperative bleeding.

PROCEDURE

Bulldog Clamping Group

This intervention involves the temporary mechanical clamping of both uterine arteries using laparoscopic bulldog vascular clips. The clips are applied to block blood flow to the uterus before the niche is excised and are removed once the myometrial reconstruction is complete.

PROCEDURE

Standard of Care

Approach: A 3-port laparoscopic approach using Storz endoscopic instruments. Excision: Complete removal of the fibrous scar tissue surrounding the niche defect. Reconstruction: Suturing and repair of the myometrium to resolve the defect.

Sponsors & Collaborators

  • Zagazig University

    lead OTHER_GOV

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
45 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2024-03-20
Primary Completion
2025-10-17
Completion
2026-01-15

Countries

  • Saudi Arabia

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 NCT07446933 on ClinicalTrials.gov