Contains fulltext :
                  26071___.PDF (publisher's version ) (Open Access

Kuper, H.H.

Leeuwen, M.A. van

Limburg, P.C.

Pepys, M.B.

Putte, L.B.A. van de

Riel, P.L.C.M. van

Rijswijk, M.H. van

Sluiter, W.J.

NARCIS 

Individual relationship between progression of radiological damage and the acute phase response in early rheumatoid arthritis: towards development of a decision support system

Individual relationship between progression of radiological damage and the acute pahse response in early rheumatoid arthritis. Towards development of a decision support system.

Radboud Repository

vanLeeuwen, MA

vanRijswijk, MH

Sluiter, WJ

vanRiel, PLCM

Kuper, IH

vandePutte, LBA

Pepys, MB

Limburg, PC

University of Groningen Research Database

Individual relationship between progression of radiological damage and the acute phase response in early rheumatoid arthritis. Towards development of a decision support system

Objective. Evaluation of the individual relationship between C-reactive protein (CRP) production or erythrocyte sedimentation rate (ESR) and progression of radiologic damage in early rheumatoid arthritis (RA), to improve the predictive value of monitoring the acute phase response.Methods, The relationship was modeled mathematically using adjustments for discontinuity in the radiographic scoring system and for clustering in the occurrence of score points in the initial phase. The model was evaluated in a prospective study of 149 patients with early RA, monthly CRP assays, and 6-monthly Sharp scores of radiographs of the hands and fret.Results, Time integrated CRP values correlated closely with radiologic progression in each patient, but there was considerable variation between individuals with similar radiographic scores. The theoretical model accommodated these results, and based on CRP measurements and radiographic scores over 6 months, it provided a k value for each patient that reflected the individual relationship between CRP and radiologic damage. Using this k value combined with actual CRP levels over 3 and 6 years, the model accurately predicted the extent of radiologic progression that was actually observed at these times, Best results were obtained using estimation of the k value from 6 or 12 month observational data. The model has been incorporated into a software program for routine clinical use that indicates the levels to which CRP should fall to prevent further joint damage, Similar results were obtained for ESR,Conclusion, A model has been established defining the individual relationship between time integrated CRP and ESR values, reflecting rheumatoid disease activity, and progression of radiologic damage. It accurately predicts outcome from 6 months after presentation and can be used as a practical decision support system.</p

ARTS repository - University of Groningen

Objective. Evaluation of the individual relationship between C-reactive protein (CRP) production or erythrocyte sedimentation rate (ESR) and progression of radiologic damage in early rheumatoid arthritis (RA), to improve the predictive value of monitoring the acute phase response. Methods, The relationship was modeled mathematically using adjustments for discontinuity in the radiographic scoring system and for clustering in the occurrence of score points in the initial phase. The model was evaluated in a prospective study of 149 patients with early RA, monthly CRP assays, and 6-monthly Sharp scores of radiographs of the hands and fret. Results, Time integrated CRP values correlated closely with radiologic progression in each patient, but there was considerable variation between individuals with similar radiographic scores. The theoretical model accommodated these results, and based on CRP measurements and radiographic scores over 6 months, it provided a k value for each patient that reflected the individual relationship between CRP and radiologic damage. Using this k value combined with actual CRP levels over 3 and 6 years, the model accurately predicted the extent of radiologic progression that was actually observed at these times, Best results were obtained using estimation of the k value from 6 or 12 month observational data. The model has been incorporated into a software program for routine clinical use that indicates the levels to which CRP should fall to prevent further joint damage, Similar results were obtained for ESR, Conclusion, A model has been established defining the individual relationship between time integrated CRP and ESR values, reflecting rheumatoid disease activity, and progression of radiologic damage. It accurately predicts outcome from 6 months after presentation and can be used as a practical decision support system

University of Groningen

Individual relationship between progression of radiological damage and the acute phase response in early rheumatoid arthritis: towards development of a decision support system

Abstract

Similar works

Full text

Available Versions

NARCIS

NARCIS

Radboud Repository

Radboud Repository

University of Groningen Research Database

ARTS repository - University of Groningen

ARTS repository - University of Groningen

NARCIS

University of Groningen