Clinical trial · Interventional
Current Intensity for the Obturator Nerve Block
The Difference in the Current Intensity for the Obturator Nerve Block According to the Presence or Absence of Neuromuscular Blockage
NCT05872451CI-TRIAL-00080062Current_ONBcompletedN/AClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The purpose of the present study was to find out the difference in current intensity required for nerve stimulation according to the presence or absence of neuromuscular blockade during the obturator nerve block procedure for TURP.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Bladder Tumor | Bladder Neoplasm | ALIAS | 0.90 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Nerve stimulator | Diagnostic Test | — | UNRESOLVED |
| Rocuronium Bromide | Drug | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Current intensity
- description
- 1. An I-gel mask is inserted for the mechanical ventilator of the patient who is sedated with propofol. 2. For the ultrasound-guided obturator nerve (ON) block, and needle tip gradually advanced to the anterior branch of the ON. The current intensity for the stimulation of ON starts at 1.0 mA (using the sequential electrical nerve stimulation mode), and the needle is advanced gradually to the location where the contraction of the adductor longus muscle (ALM) occurs at 0.3-0.5 mA. 3. After fixing the needle in that position, measure the current intensity. 4. Then, rocuronium (0.6 mg/kg) is administered under quantitative neuromuscular-blockade monitoring. 5. When the train-of-four count becomes 0, the current intensity is increased until the contraction of the ALM occurs. 6. The current intensity is measured when the contraction of the ALM occurs.
- interventionNames
- Drug: Rocuronium Bromide
- Diagnostic Test: Nerve stimulator
Primary outcomes (2)
- measure
- Initial current intensity
- timeFrame
- About 5 minutes after starting obturator nerve block procedure
- description
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Patients undergoing TURP procedure Exclusion Criteria: * Patients with anatomical or functional anomaly in the upper airways * Patients with neuromuscular disease * Patients with hip joint disorders * BMI of \< 18.5 or \> 30.0 kg/m2
References
Publications (1)
- BACKGROUNDKoo CH, Ryu JH. Anesthetic considerations for urologic surgeries. Korean J Anesthesiol. 2020 Apr;73(2):92-102. doi: 10.4097/kja.19437. Epub 2019 Dec 17. PMID 31842248