Chronic Low Back Pain
Conditions
Brief summary
The purpose of this study is to evaluate the effect of ketamine infusion for reduction of neuropathic pain and improvement of quality of life after lumbar surgery.
Detailed description
Neuropathic pain defined as 'pain caused by a lesion or disease of the somatosensory system'. Neuropathic pain is 20 - 35% of low back pain. Ketamine is categorized as N-methyl D-aspartate receptor antagonist. Ketamine has an analgesic effect in low dose and anesthetic effect in relative high dose. Also, ketamine is used in chronic neuropathic pain as postherpetic neuralgia., phantom pain, central neuropathic pain, complex regional pain syndrome, ischemic pain. In this study, ketamine will be infused during lumbar surgery in randomized, double-blind and double-blind parallel group control trial.
Interventions
ketamine 0.5mg/kg loading followed by 0.5mg/kg/h infusion during operation
Sponsors
Study design
Eligibility
Inclusion criteria
* Undergoing lumbar spine surgery due to back pain patients * American Physical Status Classification I or II
Exclusion criteria
* less than 3 month of back pain * past history of operation at lumbar area * past history of glucoma, drug abuse, alcohol abuse * pregnancy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Pain Scores on the Visual Analog Scale | 1 day before lumbar surgery | VAS score in 1 day before lumbar surgery |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Leeds assessment of neuropathic symptoms and signs (LANSS) score | 1 day before lumbar surgery | LANSS score in 1 day before lumbar surgery |
| neuropathic pain scale (NPS) score | 1 day before lumbar surgery | NPS score in 1 day before lumbar surgery |
| Oswestry disability index (ODI) score | 1 day before lumbar surgery | ODI score in 1 day before lumbar surgery |
| WHO Quality of Life (WHOQOL-BREF) score | 1 day before lumbar surgery | WHOQOL-BREF score in 1 day before lumbar surgery |
Countries
South Korea