Elderly-onset rheumatoid arthritis receives less aggressive therapies than young-onset rheumatoid arthritis in an Argentinian cohort.

OBJECTIVES: When rheumatoid arthritis (RA) starts after the age of 60 it is called elderly-onset rheumatoid arthritis (EORA) and when it starts earlier, young-onset rheumatoid arthritis. (YORA). There are few Latin American studies that compared both groups. The objective of the study was to evaluate differences in the clinical characteristics, evolution and treatment among patients with RA with onset before or after 60 years of age. MATERIALS AND METHODS: Observational study of patients with RA attended consecutively in four centers in Argentina. Sociodemographic data, comorbidities, clinical manifestations at diagnosis, presence of rheumatoid factor and/or anti-CCP (cyclic citrullinated peptide) and treatments received were collected. At the last visit, swollen and tender joints, assessment of disease activity by the patient and physician, the presence of radiographic erosions, and functional status using the HAQ-DI were recorded. RESULTS: 51 patients from each group were analyzed. The EORA group had a significantly higher proportion of smokers (58.8% vs. 35.3%, p = 0.029), cardiovascular history (54.9% vs. 21.6%, p = 0.001), abrupt onset (49% vs. 29.4%, p = 0.034) or with symptoms similar to PMR (19.6% vs. 0%, p = 0.001). Lower methotrexate doses were used in the EORA group: 19 mg (15-25) vs. 21.9 mg (20-25) (p = 0.0036) and more frequently did not receive bDMARDs or tsDMARDs. DISCUSSION AND CONCLUSIONS: The benefits of intensive treatment in patients with RA have been described. In this study, the use of DMARDs in the EORA group was less intensive, suggesting that advanced age constitutes a barrier in the therapeutic choice.

Artritis reumatóide de inicio tardío asociada a enfermedad pulmonar intersticial / Late onset rheumatoid arthritis associated with interstitial lung disease

RESUMEN La artritis reumatoide de inicio tardío es considerada en la población mayor de 65 arios, presentando diferencias a las manifestaciones clínicas y de laboratorio respecto a la artritis reumatoide en población joven, con mayor riesgo de presentar formas agresivas de la enfermedad y de comenzar con un compromiso sistémico. Se establece en este caso clínico la presencia de una probable relación entre la enfermedad pulmonar intersticial asociada con artritis reumatoide de inicio tardío. En la mayoría de casos la afectación pulmonar se presenta posterior al compromiso articular, aunque puede aparecer simultáneamente e incluso ser la primera manifestación. Los hallazgos patológicos de las manifestaciones pulmonares asociadas con enfermedades autoinmunes son similares a las neumonías intersticiales idiopáticas. Se describe el caso de una paciente que presenta compromiso pulmonar por neumonía intersticial idiopática y posteriormente presenta dolor articular, por lo que se documentó artritis reumatoide.

ABSTRACT Rheumatoid arthritis of late onset occurs in the population over 65 years of age, presenting differences in clinical and laboratory manifestations compared to rheumatoid arthritis in younger people, with a higher risk of presenting with aggressive forms of the disease, and with systemic compromise. The presence of a probable relationship between the interstitial lung disease associated with late-onset rheumatoid arthritis is established in this case. In most cases pulmonary involvement occurs after the joint problems, although they may appear simultaneously, and may even be the first manifestation. Pathological findings in interstitial pneumonias associated with collagen diseases are similar to idiopathic interstitial pneumonias. A case is presented of a woman who had pulmonary involvement due to idiopathic interstitial pneumonia, and subsequently presented with joint pain with rheumatoid arthritis being documented.