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  • Title: [Correlation between bronchoalveolar lavage and lung function in patients with systemic sclerosis and rheumatoid arthritis].
    Author: Pejcić T, Stanković I, Rancić M, Djordjević I, Ristić L, Vojinović J.
    Journal: Srp Arh Celok Lek; 2005 Dec; 133 Suppl 2():129-33. PubMed ID: 16535997.
    Abstract:
    Fibrous alveolitis (FA), or diffuse interstitial fibrosis, is used as a term for diseases in patients suffering from some kind of systemic connective tissue (SCT) disorder and lung fibrosis. FA is not unusual in clinical practice in patients with SS and rheumatoid arthritis (RA) and can be found in the definitive fibrosis phase of the disease; the early detection of FA is of great importance. The aim of this study was to determine whether there was a correlation between certain lung function parameters and cellular components of BAL in patients with SS and RA. Lung function (LF) and BAL examination was carried out in all 20 SS patients and 38 RA patients. LF was evaluated via spirometry, flow volume curves, the lung transfer factor for carbon monoxide (DLco), and the coefficient of transfer factor (K/DLco), as well as body plethysmography and blood gas analysis. A differential number of cells were taken in all BAL samples. Normal cellular components of lavage were found in 19 patients (50%). Ly-alveolitis was found in 10 patients (4 with SS and 6 with RA) (26%), and N-alveolitis in 9 patients (8 with SS and 1 with RA) (23.7%). An increased percentage of CD8+T lymphocytes in relation to CD4+T lymphocytes, and a decreased level of CD4+/CD8+ was found through BAL. Restrictive ventilation disorder was discovered in 6 patients (15.7%), TLC values were reduced in 6 patients (15.7%), and K/DLco was decreased in 5 patients. DLco was normal in 20 patients (53%) and reduced in 18 patients (47%). We discovered a significant correlation between DLco and cellular components (neutrophile or lymphocyte) present in BAL, but there was no significant correlation between other lung function parameters. Analysis of BAL and DLco examination can be considered to be suitable parameters of interstitial lung changes in SS and RA patients.
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