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Effect of Nitrous Oxide in Treating Neuropathic Pain: A Study in Chronic Low Back Pain Patients


Effect of Nitrous Oxide in Treating Neuropathic Pain: A Pilot Study in Chronic Low Back Pain Patients




Epidural injection will be completed under fluoroscopy and all patients will receive 1-4 mg of Midazolam for relaxation before procedure and, if needed, 50-100 mcg of Fentanyl intravenous (IV). Radiopaque contrast (Omnipaque 300), for confirming the epidural position of the needle, steroids and local anesthetic agents will be used according to the physician performing the block and will not be controlled by the study. Patients will be randomly assigned to receive either inhaled Entonox along with the interventional block they are scheduled for or oxygen. They will be blinded about the treatment they are receiving. Those randomized to Entonox will inhale the gas through a mouthpiece throughout the procedure and also continue to receive it for a total of 4 hours in the recovery. Those randomized to the oxygen group will receive oxygen through a similar mouthpiece for the entire duration of the procedure and recovery for 4 hours. Following completion of procedure the patient will be transferred to recovery and monitored for 3-5 hours then discharged home with instructions. Possible side effects will be monitored and recorded, pain score of patient will be recorded before discharge. All the patients will receive standard instructions regarding physical back exercises. This will be repeated for every procedure up to maximum of three blocks. The patients will be followed during each block and over a period of 1, 3, 6 and 12 months and on each follow-up visit will complete computerized set of questionnaires as they did before the procedure. The patients charts will be then reviewed for one year after the initial procedure to determine if further epidural steroid injections or surgery for the presenting problem were required. It is anticipated that the appropriate number of patients will be enrolled within six months of study initiation.

Study Status: Recruiting

Alparslan Turan, M.D. 216-445-9857

Alparslan Turan, M.D. 216-445-9857

Condition Intervention Phase
Low Back Pain
Radiating Pain
Other: Entonox
Other: Oxygen

Verified by Outcomes Research Consortium February, 2013

Sponsored by: Outcomes Research Consortium
Information provided by: Outcomes Research Consortium identifier: NCT01172600

Study Type: Interventional

Study Design: Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver), Primary Purpose: Supportive Care

Cleveland Clinic Foundation
Cleveland, Ohio 44195
United States

Cleveland Clinic Foundation
Cleveland, Ohio 44195
United States

Alparslan Turan, M.D.., Principal Investigator

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