Radicular pain due to lumbar disc herniation, lumbar spinal canal stenosis, or related conditions
Conditions
Interventions
Within the same nerve root block procedure, the first 3 minutes are performed without saline infusion, followed by 3 minutes with continuous infusion of cooled saline (4 to 8 degrees Celcius, <
=0.5 mL/min, total <
=1.5 mL).
Sponsors
Nagaski Rosai Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Adults aged (18 years or more) Chronic pain clinically diagnosed as radicular pain due to lumbar disc herniation, spinal stenosis, or similar conditions Indicated for lumbar or sacral nerve root block Able to understand the study and provide written informed consent
Exclusion criteria
Exclusion criteria: Local or systemic infection Severe bleeding tendency or inability to discontinue anticoagulants Allergy to local anesthetics or contrast agents Severe arrhythmia Non-radicular pain Severe spinal deformity or post-surgical changes impairing reproducibility Inability to understand or consent Cases deemed inappropriate by the investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Mean electrical power output (W) during each 3-minute phase | — |
Secondary
| Measure | Time frame |
|---|---|
| Change in impedance (ohm) Temperature parameters (mean, peak, change) Time to maximum power Patient-reported outcomes (procedural pain NRS) Adverse events (abnormal pain, excessive motor response, vasovagal reaction, hematoma, etc.) | — |
Countries
Japan
Contacts
Public ContactMakito Oji
Nagasaki Rosai Hospital Department of Anesthesiology
Outcome results
None listed