Comparison Between Ultrasound Guided Caudal Block and Ultrasound Guided Dorsal Penile Block After Hypospadias Surgery in Children

May 22, 2026 updated by: Ahmed Aouf

Comparison Between Ultrasound Guided Caudal and Dorsal Penile Block After Hypospadias Surgery in Children, A Randomized Clinical Trial

The study focuses on comparing the caudal block (CB) and the dorsal penile nerve block (DPNB) via ultrasound guidance in regional anesthesia in hypospadias surgery.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

62

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
      • Kafr ash Shaykh, Egypt
        • Kafrelsheikh University Hospitals

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • It included male children who underwent hypospadias surgery (distal or mid penile) from 1 to 6 years old with American Society of Anesthesiologists (ASA) classification 1 or 2.

Exclusion Criteria:

  • children older than 6 years and younger than 1 year.
  • children with neurological, mental, and intellectual problems
  • bleeding tendency
  • allergy to any local anesthesia
  • contraindications to regional anesthesia, back anomalies
  • liver diseases.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Dorsal penile nerve block group
Patients that had regional anesthesia using dorsal penile nerve block
Procedure: Dorsal Penile Block Anesthesia
With the patient in a supine position, using aseptic precautions, a linear probe (6-13 MHz) was placed transversely at the root of the penis. The penis was held under gentle traction, and key anatomical structures, including the corpus cavernosum, corpus spongiosum, dorsal artery and vein, Buck's fascia, and tunica albuginea, were identified in the transverse plane
Active Comparator: Caudal epidural block group
Patients that had regional anesthesia using caudal epidural block
Procedure: Caudal Block Anesthesia
Patients were positioned laterally for the procedure. The ultrasound transducer was first positioned transversely at the midline to visualize the sacral cornua, sacrococcygeal ligament, sacral bone, and sacral hiatus in a transverse view. It was then rotated 90° to obtain a longitudinal view of the sacrococcygeal ligament and sacral hiatus. A 22G, 50 mm needle was inserted caudal to cranial into the sacral canal under direct real-time longitudinal ultrasound guidance

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time to first rescue analgesia
Time Frame: From surgery time to the next day after surgery.
The time interval (measured in hours) from a specific starting point until the patient requires their first dose of additional pain medication (the "rescue" dose).
From surgery time to the next day after surgery.
Intraoperative Fentanyl
Time Frame: During the operations
During the operations

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Ahmed Aouf

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2023

Primary Completion (Actual)

January 1, 2026

Study Completion (Actual)

February 1, 2026

Study Registration Dates

First Submitted

May 22, 2026

First Submitted That Met QC Criteria

May 22, 2026

First Posted (Actual)

May 29, 2026

Study Record Updates

Last Update Posted (Actual)

May 29, 2026

Last Update Submitted That Met QC Criteria

May 22, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • KFSIRB200-620

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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