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Brief Title: Study of Cytokines Serum Levels in Chronic Low Back Pain
Official Title: Analytical Transversal Study of Cytokines Serum Levels in Chronic Low Back Pain Due to Herniated Disk
Study ID: NCT00991042
Brief Summary: The purpose of this study is to: * evaluate if there is an association between elevated levels of cytokines and chronic pain due to herniated disk disease * measured cytokines levels in chronic low back pain and in healthy subjects.
Detailed Description: 23 patients with at least three months of back pain due to herniated disk disease were selected Diagnosis was confirmed by magnetic resonance imaging (MRI) or computerized tomography (CT) imaging of the spine for all patients. In addition, pain severity had to be ³ 5 points on the Numerical Rating Scale (NRS) ranging from zero (no pain) to 10 (worst imaginable pain). The exclusion criteria were defined as one or more of the following: psychiatric disorders, systemic or inflammatory disease, history of allergy, presence of motor deficits, history of blood dyscrasia, pregnancy, active infection, tumor, use of analgesic drugs in the week before or inability to come to the hospital for evaluation.
Minimum Age: 20 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: Yes
Universidade Federal da Bahia, Salvador, Bahia, Brazil
Name: Durval C Kraychet
Affiliation: Federal University of Bahia
Role: PRINCIPAL_INVESTIGATOR