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J Clin Rheumatol ; 2018 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-29389685

RESUMO

BACKGROUND: Intra-articular (IA) injections are an integral part of the management of rheumatoid arthritis (RA). However, there are few reports regarding the association between drug effectiveness and cost. OBJECTIVES: The aim of this study was to assess the cost-effectiveness of various combinations of IA injections of betamethasone, hyaluronic acid (HA) or etanercept for oligoarthritis in RA. METHODS: Seventy RA patients were assigned to 4 groups according to the IA injection drug(s): betamethasone alone, betamethasone + etanercept, betamethasone + HA, or etanercept alone. Data for the following were collected before and after IA injection: erythrocyte sedimentation rate, C-reactive protein (CRP), disease activity score in 28 joints calculated with CRP, and patient global visual analog scale. In addition, power Doppler ultrasonography and gray-scale ultrasonography scores were obtained for synovitis, and passive range of motion of joints was measured. RESULTS: Sixty-eight RA patients completed the trial. Compared with patients given etanercept alone, the visual analog scale, power Doppler ultrasonography, and gray-scale ultrasonography scores of each of the other groups were significantly better at each time point. At 1 month, the passive range of motion of joints in patients given betamethasone + HA was significantly better than that of each of the other groups. Synovial hyperplasia improved significantly in all groups, but less so in those given etanercept alone. All other clinical parameters of the 4 groups were similar. The costs per joint for the betamethasone-alone, betamethasone + etanercept, betamethasone + HA, and etanercept-alone groups were, respectively, $7.55, $181.77, $42.68, and $174.22. CONCLUSIONS: Intra-articular injection of betamethasone alone was the most cost-effective treatment for oligoarthritis of RA. Betamethasone combined with HA injection resulted in the best improvement in joint function.

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