Posterior QLB versus QIPB for pain control after pediatric undescended testis repair
Comparison of the Effects of Posterior Quadratus Lumborum Block and Quadroiliac Plane Block on Analgesic Consumption in Postoperative Pain Management in Pediatric Patients Undergoing Undescended Testis Surgery
This study tries two ultrasound-guided nerve blocks (posterior QLB and QIPB) to see which gives better pain relief for boys aged 1–7 after unilateral undescended testis surgery.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 70 (estimated) |
| Ages | 1 Year to 7 Years |
| Sex | Male |
| Sponsor | Medipol University Academic / other |
| Locations | 1 site (Istanbul) |
| Trial ID | NCT07426796 on ClinicalTrials.gov |
What this trial studies
This prospective, randomized, double-blind trial will enroll 70 boys aged 1–7 years undergoing unilateral undescended testis repair. Under general anesthesia each patient will receive either an ultrasound-guided posterior quadratus lumborum block (QLB) or a quadroiliac plane block (QIPB) using 0.5 mL/kg of 0.25% bupivacaine. Postoperative pain will be measured with the FLACC scale, and researchers will record time to first rescue analgesic, total analgesic consumption, and any complications. The trial compares the analgesic effectiveness and safety profile of the two ultrasound-guided regional techniques in the immediate postoperative period.
Who should consider this trial
Good fit: Boys aged 1–7 years with ASA physical status I–II scheduled for unilateral undescended testis repair and with parental informed consent are ideal candidates.
Not a fit: Children with bleeding disorders, local infection at the injection site, known allergy to local anesthetics, significant organ dysfunction, or certain spinal anomalies would not be eligible and would not benefit from participation.
Why it matters
Potential benefit: If one block provides better or longer pain relief with similar safety, children could experience less postoperative pain and reduced need for additional opioids or analgesics.
How similar studies have performed: Posterior QLB has prior supportive evidence for abdominal surgery analgesia, while QIPB is a newer technique with limited published pediatric data.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male pediatric patients aged 1-7 years. * ASA physical status I or II. * Scheduled for unilateral undescended testis surgery. * Written informed consent obtained. Exclusion Criteria: * History of neurological deficit or developmental delay. * Bleeding diathesis or known coagulopathy. * History of allergy to local anesthetics. * Infection or skin lesion at the block injection site. * Congenital spinal anomaly. * Mental retardation or psychiatric history. * Liver or kidney dysfunction.
Where this trial is running
Istanbul
- Istanbul Medipol University — Istanbul, Turkey (Türkiye) (Recruiting)
Study contacts
- Study coordinator: Burak Ömür
- Email: bomur@medipol.edu.tr
- Phone: +905056215056
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.