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Journal of Korean Medical Science ; : 731-737, 2013.
Article Dans Anglais | WPRIM | ID: wpr-80575

Résumé

Although autoantibodies are routinely screened in patients with idiopathic interstitial pneumonia, there are no reliable data on their clinical usefulness. The aim of this study was to investigate the prognostic value of autoantibodies for predicting the development of new connective tissue disease in these patients and also mortality. We conducted retrospective analysis of the baseline, and follow-up data for 688 patients with idiopathic interstitial pneumonia (526 with idiopathic pulmonary fibrosis, 85 with nonspecific interstitial pneumonia, and 77 with cryptogenic organizing pneumonia) at one single tertiary referral center. The median follow-up period was 33.6 months. Antinuclear antibody was positive in 34.5% of all subjects, rheumatoid factor in 13.2%, and other specific autoantibodies were positive between 0.7%-6.8% of the cases. No significant difference in patient survival was found between the autoantibody-positive and -negative groups. However, the presence of autoantibodies, especially antinuclear antibody with a titer higher than 1:320, was a significant predictor for the future development of new connective tissue diseases (relative risk, 6.4), although the incidence was low (3.8% of all subjects during follow-up). In conclusion, autoantibodies are significant predictors for new connective tissue disease development, although they have no prognostic value.


Sujets)
Sujet âgé , Femelle , Humains , Mâle , Adulte d'âge moyen , Anticorps antinucléaires/sang , Autoanticorps/sang , Études de cohortes , Maladies du tissu conjonctif/anatomopathologie , Études de suivi , Pneumopathies interstitielles idiopathiques/sang , Pronostic , Études rétrospectives , Facteur rhumatoïde/sang , Facteurs de risque , Centres de soins tertiaires , Tomodensitométrie
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