Özet:

Objective. The aim of the study was to evaluate the frequency of anemia in patients with rheumatoid arthritis (RA), observe the change of anemia with biological disease-modifying anti-rheumatic drugs (bDMARDs) treatment and examine factors associated with anemia change before and after treatment. Methods. The frequency of anemia before treatment was evaluated in 401 patients who received bDMARD therapy for 1 year. Patients' hemoglobin (HB), ferritin, transferrin saturation, mean corpuscular volume (MCV), hematocrit (HCT), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) levels and disease activity score (DAS)28 were recorded. The data obtained before and 1 year after the treatment of patients with anemia of chronic disease (ACD) were compared and anemia evaluations of the patients were made. Results Anemia was detected in 45.9% of 401 patients. Iron deficiency anemia (IDA) was observed in 58.2% of the 184 patients with anemia, ACD and ACD/IDA (mixed type) was observed in 31.5%. While ESR, CRP and DAS28 values decreased in the first year of bDMARD treatment, HB levels increased. When the increase in hemoglobin levels and decrease DAS28 were compared between adalimumab and sertolizumab, no significant difference was found. High basal ferritin and lower HB levels were found to be factors affecting HB change before and after treatment. Conclusions While disease activity is controlled with bDMARD treatment, an increase in HB levels is also observed. ACD improves with disease treatment. High basal ferritin and lower HB levels were the most important factors associated with HB change.

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