Polymyalgia rheumatica can be distinguished from late onset rheumatoid arthritis at baseline: results of a 5-yr prospective study

被引:49
作者
Pease, C. T. [1 ]
Haugeberg, G. [1 ,2 ]
Montague, B. [3 ]
Hensor, E. M. A. [1 ]
Bhakta, B. B. [1 ]
Thomson, W.
Ollier, W. E. R. [4 ]
Morgan, A. W. [1 ]
机构
[1] Univ Leeds, Leeds Inst Mol Med, Sect Musculoskeletal Dis, Leeds, W Yorkshire, England
[2] Norwegian Univ Sci & Technol, N-7034 Trondheim, Norway
[3] St James Univ Hosp, Leeds, W Yorkshire, England
[4] Univ Manchester, Ctr Integrated Genom Med Res, Manchester, Lancs, England
关键词
GIANT-CELL ARTERITIS; TEMPORAL ARTERITIS; HLA-DRB1; ALLELES; PITTING EDEMA; DISEASE; MANIFESTATIONS; ASSOCIATION; DIAGNOSIS; SYNOVITIS; SEVERITY;
D O I
10.1093/rheumatology/ken343
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective. To describe the pattern of arthropathy and HLA-DRB1 alleles associated with PMR in order to develop a diagnostic algorithm that could help distinguish PMR and RF-negative (RF ve) late-onset RA (LO-RA) at presentation. Methods. This was a prospective study of all patients presenting with PMR or LO-RA over a 10-yr period to one physician. Demographic, clinical and laboratory data were collected at presentation and during a minimum of 5 yrs of follow-up. The accuracy of the initial diagnosis was systematically reviewed. Results. One hundred and forty-two patients with LO-RA, 147 with PMR and 42 with PMR TA were studied. Peripheral synovitis was observed in 23 of the PMR patients. In comparison with RF ve LO-RA, PMR patients were younger (P 0.001), myalgia more frequent [100 vs 16 (P 0.001)] and arthritis of PIP, MCP and wrist were less frequent (P 0.001). The combination of wrist MCP/PIP or wrist PIP MCP were highly suggestive of RF ve LO-RA (P 0.001). HLA-DRB10101/0102 and 0401 were significantly increased in PMR patients compared with healthy controls. Plasma viscosity and arthritis in the wrist, in combination with at least one MCP or PIP joint at disease onset, were predictive of whether a non-erosive RF ve patient would ultimately be diagnosed as having RF ve LO-RA or PMR (/arthritis). Conclusion. Our longitudinal follow-up data were consistent with RF ve LO-RA being a separate disease entity to PMR despite some phenotypic and immunogenetic similarities at disease onset. A diagnostic algorithm was derived using baseline clinical features to predict the final diagnosis of RF ve, non-erosive patients.
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页码:123 / 127
页数:5
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