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[Clinical and ultrasound assessment of the disease activity in patients with rheumatoid arthritis].

INTRODUCTION
Rheumatoid arthritis (RA) is a chronic, systemic, inflammatory disease, leading to irreversible joint destruction and deformities. The adequate assessment of the disease activity enables the correct choice of therapy and evaluation of the treatment efficacy. The aim of the study was to compare different methods of assessment of the disease activity, using clinical data and ultrasonography (US) of joints, in patients with RA, in daily clinical practice.


MATERIAL AND METHODS
The study group consisted of 68 patients with RA. The clinical assessment of the disease activity was performed using the Disease Activity Score based on evaluation of 28 joints (DAS28). Ultrasonography (US) examination of joints was performed in 24 small joints, evaluating hypertrophy and vascularity of the synovium. Ability to perform daily activities was measured using the modified Health Assessment Questionnaire (M-HAQ) Results: There were statistically significant correlations between the grade of synovial vascularity of joints and parameters of clinical activity [tender joints count (TJC), swollen joints count (SJC), DAS28] and laboratory acute phase parameters (ESR, CRP). The grade of synovial hypertrophy was significantly associated with SJC and DAS28, and not with laboratory parameters. M-HAQ value was significantly associated only with TJC.


CONCLUSIONS
In RA patients an assessment of the disease activity should be performed taking into consideration several parameters, clinical activity, laboratory parameters, US and quality of life assessment. US examination enables verification of synovial inflammatory activity, which is not always possible in clinical examination.