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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT06417060
Other study ID # 2
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date May 25, 2023
Est. completion date May 26, 2024

Study information

Verified date May 2024
Source Necmi Kadioglu Hospital
Contact Mustafa Azizoglu, MD, PhD
Phone +905447448244
Email mdmazizoglu@gmail.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Hypospadias is among the most common congenital genital malformations in boys and is typically treated through surgical intervention. During pediatric urological surgery, caudal anesthesia, also known as a caudal block, is frequently employed as a regional anesthetic technique. It has proven to be a safe and effective anesthetic approach in children, with a low rate of anesthesia-related complications. However, despite the low incidence of complications directly associated with the caudal block, there is limited and inconclusive evidence regarding its impact on surgical complications. Therefore, this randomized controlled superiority trial aims to evaluate whether the use of caudal anesthesia, compared to the dorsal penile block, is associated with an increased incidence of urethrocutaneous fistulas and glans dehiscence following hypospadias repair.


Description:

The rationale for conducting a comprehensive study arises from the limitations inherent in existing literature, primarily due to selection bias and the retrospective nature of current evidence, which fails to clarify whether caudal blocks lead to higher complication rates after hypospadias repair. To fill this knowledge gap and address the clinical uncertainty surrounding this issue, the only effective approach is to randomly assign patients undergoing hypospadias repair to receive either caudal or penile block anesthesia. The purpose of this pilot study is to evaluate the feasibility of a definitive trial and identify any methodological issues that must be resolved before committing significant resources to a full-scale study. This pilot study will assess the feasibility of conducting a large, definitive, parallel-group, randomized controlled trial (RCT) to determine whether a dorsal penile block results in fewer postoperative complications than a caudal block in boys aged 6 to 48 months undergoing hypospadias repair. Hypospadias repair will be performed under standardized analgesic administration, and participants may receive fentanyl (1-3 mcg/kg) at the anesthesiologist's discretion. Anesthesia will be induced via inhalation of air/nitrous oxide and sevoflurane. Based on a randomized allocation, patients will receive either a caudal anesthetic block (0.25% bupivacaine, 1 ml/kg, up to a maximum of 10 ml) or a dorsal penile block (bupivacaine without epinephrine, 10-20 ml/kg). All patients will receive antiemetic prophylaxis with dexamethasone (150 mcg/kg), ondansetron (50 mcg/kg), acetaminophen suppository (40 mg/kg), and intravenous morphine (0.02-0.1 mg/kg). At discharge, patients will be prescribed oral morphine (0.2 mg/kg) every 4 hours as needed, Ditropan (0.2 mg/kg) every 12 hours as needed, Tylenol (15 mg/kg per dose) every 4 hours, or ibuprofen (10 mg/kg per dose) every 6 hours. Parents will administer these medications at their discretion. Trimethoprim (2 mg/kg) will also be prescribed until catheter removal.


Recruitment information / eligibility

Status Recruiting
Enrollment 200
Est. completion date May 26, 2024
Est. primary completion date May 25, 2024
Accepts healthy volunteers No
Gender Male
Age group 6 Months to 48 Months
Eligibility Inclusion Criteria: - Aged between 6 and 48 months - Distal hypospadias - Acceptance of participation Exclusion Criteria: - Midpenil hypospadias - Proximal hypospadias - Prior surgery - Comorbidity (diabetes, hypertention, cardiac pathology)

Study Design


Intervention

Drug:
Caudal block anesthesia
Anesthesia will be administered via inhalation induction with air/nitrous oxide and sevoflurane, followed by an injection of 0.25% bupivacaine (1 mL/kg) without epinephrine into the caudal canal, which is the sacral portion of the spinal canal.
Dorsal penile block anesthesia
Anesthesia will be administered using an inhalation induction method with air/nitrous oxide and sevoflurane, followed by the injection of 0.25% bupivacaine without epinephrine into the dorsal part of the penis.

Locations

Country Name City State
North Macedonia Ss. Cyril and Methodius University in Skopje, Pediatric Surgery, Skopje, Macedonia, the former Yugoslav Republic of North Macedonia Skopje
Russian Federation Ao Gk Medsi Moscow
Turkey Necmi Kadioglu Esenyurt State Hospital Istanbul

Sponsors (1)

Lead Sponsor Collaborator
Necmi Kadioglu Hospital

Countries where clinical trial is conducted

North Macedonia,  Russian Federation,  Turkey, 

Outcome

Type Measure Description Time frame Safety issue
Primary Post-operative complication rate A urethrocutaneous fistula (UCF) is characterized by an abnormal connection between the reconstructed urethra and the skin, situated between the original meatus and the tip of the penis. Glans dehiscence refers to the complete separation of the glans wings, which may or may not be connected by a strip of skin. 1 year
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