ltrasound-guided dorsal penile nerve block technique: ananatomical-based description of a new technique

Conditions: N47
Redundant prepuce, phimosis and paraphimosis

Registration Number: DRKS00022377

Lead Sponsor: Medizinische Universität Wien

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Pending

Sex: Male

Target Recruitment: 80

Inclusion Criteria

Children are included if scheduled for circumcision.
Parents have undersigned the written informed consent after being informed in detail about
the nature, risks, and scope of the clinical study and any expected desirable and potentially
adverse effects.
Neither legally incapacitated nor subject to any other circumstances rendering the parents
unable to understand the nature, scope, and possible consequences of the study

Exclusion Criteria

Parent's refusal of participation of their child in the study and exclusion criteria are
contraindication against epidural anaesthesia
- Neurological disorders
- Coagulation disorders
- Thrombocytopenia
- Allergy against amino-amide local anaesthetics
- Local infection on the intended injection site

Study & Design

Study Type: observational

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
The primary study endpoint will be success rate of surgical blockade, meaning that the surgical procedure will be performed without induction of general anaesthesia. Blockade is de?ned as successful if the skin incision 15 minutes after blockade does not evoke movement of the child and if the hemodynamics remain stable during the surgical procedure. If the heart rate increases by more than 20% from baseline before blockade or if other evident signs of pain like tachypnea or any kind of unintentional movements are noted, a rescue-bolus” of fentanyl 1 µg x kg-1 and, if needed, propofol will be administered. Failure is assumed if despite the rescue –bolus” of fentanyl sings of pain are evident and induction of general anaesthesia is necessary.

Secondary Outcome Measures

Name	Time	Method
Secondary endpoints will include the amount of additional analgesic drugs during and after the surgical procedure and the rate of general anaesthesias needed to perform the surgical procedure.