Journal
ARTHRITIS RESEARCH & THERAPY
Volume 18, Issue -, Pages -Publisher
BMC
DOI: 10.1186/s13075-016-0916-2
Keywords
spondyloarthritis; sacroiliitis; imaging studies; scoring; biologics; disease-modifying anti-rheumatic drugs
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Background: In this study, the Spondyloarthritis Research Consortium Canada (SPARCC) scoring method was used to compare treatment methods in patients with axial spondyloarthritis (SpA), a form of sacroiliitis. MRI abnormalities in bone marrow edema (BME) were compared before and after treatment in order to compare the efficacy of anti-TNF-alpha and DMARD, alone or in combination, as treatments for sacroiliitis. Methods: Fifty-six Chinese patients with axial SpA (mean age 22.6 years) were recruited. Patients were divided into three groups according to different treatments (anti-TNF-alpha alone vs. DMARDs alone vs. combined anti-TNF-alpha and DMARDs). MRI examinations were performed before and after treatment. The SPARCC score, clinically relevant AS Disease Activity (ASDAS) indices, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) were analyzed. Results: After treatment, ASDAS and SPARCC scores, ESR, and CRP were significantly improved (P < 0.05) in the anti-TNF-alpha monotherapy and combination groups; however, there were no statistically significant differences (P > 0.05) in clinical disease activity and radiological inflammation of sacroiliac joint (SIJ) in patients in the DMARDs alone group. SPARCC showed a correlation with ASDAS score pre-treatment, but not post-treatment. Furthermore, there were significant changes (P < 0.05) in these patients with axial SpA after only 3 months of treatment. Follow-up studies of patients who continued therapy for 4-6 months and 9-12 months revealed statistically significant differences from baseline (P < 0.05). Conclusions: SPARCC can be used to assess severity of disease pre-treatment. Anti-TNF-alpha treatment resulted in effective reduction of disease activity and BME of SIJ after 3 months of therapy.
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