Anatomical Measurements of Pudendal Nerve Block in Children
Trial statusNot yet recruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age1-18
SponsorIstanbul University - Cerrahpasa
About this trial
This prospective observational study aims to investigate the relationship between anatomical parameters-specifically the distance from the anus to the needle insertion point and the depth required to reach the pudendal nerve-during neurostimulation-guided pudendal nerve block and patients' age, height, and weight in children undergoing penile surgery.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Children aged 1-18 years
Scheduled for penile surgery (e.g., hypospadias, phimosis)
Planned to receive neurostimulation-guided pudendal nerve block
Patient and parents/legal guardians willing to participate under general anesthesia
Disqualifiers
Patients with incomplete measurement data
Cases where successful nerve block cannot be performed or nerve stimulation is not detectable at currents ≥1.5 mA
Patients or parents/legal guardians who refuse pudendal nerve block
Patients with pelvic deformities or neuromuscular disorders
Trial population
This study includes children aged 1-18 years who are undergoing penile surgery. Neurostimulation-guided pudendal nerve block will be performed, and anatomical measurements, including the horizontal distance from the anus to the needle insertion point and the depth from the skin to the pudendal nerve, will be recorded. Measurements will be taken separately for the right and left sides. Patient age, height, and weight will also be recorded, and their relationship with the anatomical measurements will be analyzed. The study will be conducted at Istanbul University-Cerrahpasa, Department of Pediatric Surgery.
Trial design
Design model
Cohort
Time perspective
Prospective
Treatments tested in this trial
Neurostimulation-Guided Pudendal Nerve Block
Procedure/SurgeryBilateral pudendal nerve block is performed under general anesthesia with neurostimulation guidance. Anatomical measurements, including distance from anus to needle insertion point and nerve depth, are recorded for each patient. Bupivacaine 0.25% is used at 0.25 ml/kg per side, with a maximum total dose of 2 mg/kg.
Treatment groups
50 Participants
are divided into 1 treatment groupGroup A: Pediatric Penile Surgery Cohort1 intervention
Trial outcomes
Primary outcomes
1
Horizontal distance from anus to needle insertion point and Depth from skin surface to pudendal nerve
The horizontal distance from the anus to the needle insertion point is measured in centimeters for each patient using neurostimulation-guided pudendal nerve block. Measurements are recorded separately for the right and left sides.The depth from the skin surface to the pudendal nerve is measured in centimeters using neurostimulation guidance. Measurements are recorded separately for the right and left sides. The relationship of this distance and the association of nerve depth with patient age, height, and weight will be analyzed.
Time frame
During pudendal nerve block procedureSponsors and contacts
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Source ClinicalTrials.gov
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