The progression of erosion and joint space narrowing scores in rheumatoid arthritis during the first twenty-five years of disease

University of Colorado School of Medicine, Denver.
Arthritis & Rheumatology (Impact Factor: 7.87). 07/1991; 34(6):660-8.
Source: PubMed

ABSTRACT Erosions and cartilage destruction are nearly universal features in peripheral joints that have been chronically affected by rheumatoid arthritis. Scoring methods to measure the extent of these abnormalities in hands and wrists have been developed and have been thoroughly tested in several studies to establish their reproducibility. In this study, we utilized one of these scoring methods to examine the progression of radiologic damage as related to duration of disease. Two hundred ninety-two patients from 3 different participating centers in the Arthritis, Rheumatism, and Aging Medical Information System were included. Six hundred fifty films of the hands and wrists, obtained from 210 patients, were scored for erosions and joint space narrowing. The average annual rate of progression of the total radiologic score, which sums erosion and joint space abnormalities and has a maximum possible score of 314, was approximately 4 units per year over the first 25 years after onset; this progression was more rapid in the earlier years of disease and slightly slower in the later years. Data were insufficient to accurately determine the progression rate in disease of more than 25 years duration.

  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Quantitative measurement has led to major advances in the diagnosis, prognosis and management of chronic diseases. Quantitative measures in rheumatic diseases differ from measures in many chronic diseases in several respects. There is no single "gold standard," such as blood pressure or cholesterol, in the diagnosis, management, and prognosis of any rheumatic disease. Laboratory tests are limited; for example, in rheumatoid arthritis > 40% of patients or more have a normal erythrocyte sedimentation rate (ESR). Formal joint counts have poor reliability and are not performed at most visits of most patients. Radiographs are rarely read quantitatively, except in formal clinical trials. The optimal quantitative measures to monitor status and assess long-term prognosis are often derived from patient self-report questionnaires. Quantitative measures may reflect disease activity, e.g., swollen joint counts or C-reactive protein (CRP), long-term damage, e.g., radiographic damage, or poor outcomes, e.g., work disability and premature death. Disease activity measures used in clinical trials are primarily surrogates for long-term outcomes. As there is no single "gold standard" measure, indices of multiple measures are used in patient assessment. Indices used in rheumatoid arthritis assess primarily disease activity, but separate indices have been developed to assess disease activity versus damage in patients with ankylosing spondylitis, systemic lupus erythematosus, and vasculitis.
    Clinical and experimental rheumatology 23(5 Suppl 39):S1-9. · 2.97 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Therapies for rheumatoid arthritis (RA) may be assessed according to relative levels of measures to compare efficacy to another therapy or to a placebo, as in the American College of Rheumatology (ACR) 20%, 50%, or 70% (ACR 20 ACR 50 and ACR 70) responses, or by absolute levels of measures, as in disease activity scores (DAS), ACR criteria for remission, or "target values" of specific measures. Regulatory considerations have emphasized primarily relative comparisons to a placebo or standard therapy, derived in part from the weak efficacy of traditional disease modifying anti-rheumatic drugs (DMARDs). While improvement compared to placebo certainly indicates efficacy, it is of concern that measures of inflammatory activity, such as swollen joints and the erythrocyte sedimentation rate (ESR), may be stable or improved over periods of 5-10 years, while measures of damage, such as joint deformity and radiographic changes, may progress over the same period in the same patients. These findings suggest that improvement at a level of 20% or 50% may deter but not prevent severe long-term outcomes of radiographic progression, functional declines, work disability, and premature mortality, seen in most patients until the middle 1990s. Outcomes appear to be improved at this time, associated with aggressive treatment strategies and more powerful therapies, including biologic agents. In the Finnish Rheumatoid Arthritis Combination Therapy Trial (FinRACo), no patient who was in remission after 6 months was receiving work disability payments 4 1/2 years later, compared to 22% of patients who had ACR 20 or 50 responses and 54% of patients who did not have ACR 20 responses after 6 months who were all receiving work disability payments after 5 years. These findings suggest that absolute targets, including remission, may be realistic contemporary goals, with aggressive treatment strategies and more effective DMARDs and biologic agents.
    Clinical and experimental rheumatology 22(5 Suppl 35):S50-6. · 2.97 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Research concerning early arthritis and early rheumatoid arthritis (RA) may be considered to have begun with population-based studies in the United Kingdom, the United States and Scandinavia, from the late 1950s to the late 1960s. These studies indicated that the majority of people with clinical findings of RA had no evidence of disease 3-5 years later, and that only about 25% to 30% of people in a population who met the criteria for RA had rheumatoid factor. These findings may have contributed to an underestimation of RA until the severity of long-term outcomes of clinical RA were recognized in the 1980s on the basis of clinical cohorts. The first major early RA clinical cohort was established in 1957-1963 in Bath, England. Although results at 3 and even 11 years were not overly unfavorable, by 15 and 20 years most patients had severe outcomes of functional declines and premature mortality. The Middle-sex (UK) early RA cohort established in 1966-1971 indicated that radiographic abnormalities were observed in about 70% of patients by 2 years of disease, and were seen in most patients initially in the feet. The Memphis (Tennessee, USA) early RA cohort established in 1967-1971 suggested that a progressive course of RA is predicted by a higher number of involved joints at baseline. The Lund (Sweden) early RA cohort established in 1985-1989 indicated rather severe long-term outcomes in patients treated according to traditional conservative approaches to use of disease modifying anti-rheumatic drugs (DMARDs). The early RA study (ERAS) involving nine National Health Service trusts in the UK was established in 1987-93, and showed associations of education level and socioeconomic status with clinical status. The movement towards early arthritis clinics was given great impetus following the work by Emery in the early 1990s. These studies and others described elsewhere in this supplement have contributed to the foundations for the clinical approach to early arthritis in the 21st century.
    Clinical and experimental rheumatology 01/2003; 21(5 Suppl 31):S5-14. · 2.97 Impact Factor
Show more