Document Detail

Prevalence of airway and parenchymal abnormalities in newly diagnosed rheumatoid arthritis.
MedLine Citation:
PMID:  22795504     Owner:  NLM     Status:  Publisher    
BACKGROUND: Pulmonary disease is a well recognised and important extra-articular manifestation of rheumatoid arthritis (RA). The objective of this study was to determine the prevalence of airway and parenchymal abnormalities in newly diagnosed patients with RA and to correlate these with clinical measures of RA severity and laboratory tests. METHODS: 60 patients with a new (symptom duration <12 months) diagnosis of RA (43 females, 42 European, mean age 54, 33 ever smoker, (17 current) underwent lung function testing and high resolution computed tomography (HRCT) scored by two independent radiologists. RESULTS: Eighteen (30%) patients reported respiratory symptoms: dyspnoea (11), cough (11), and wheeze (8). Twelve (20%) patients had physiologic evidence of airflow obstruction and 24 (40%) had reduced gas transfer. The prevalence of HRCT abnormalities (in any lobe) was as follows: decreased attenuation 67%, bronchiectasis 35%, bronchial wall thickening 50%, ground glass opacification 18%, reticular changes 12%. All abnormalities were more common in the lower lobes. With the exception of reduced DLCO, there were no significant differences in the prevalence of HRCT patterns or lung function parameters between smokers and non smokers. Anti-CCP antibodies and rheumatoid factor (RF) correlated strongly with DLCO and variably with other physiologic measures but poorly with radiologic abnormalities. CONCLUSION: Patients with newly diagnosed RA have a moderate prevalence of airway and parenchymal abnormalities on HRCT and lower than predicted lung function parameters which cannot entirely be explained by smoking. These data suggest that pulmonary involvement is present early in the disease course in RA.
Margaret Wilsher; Louisa Voight; David Milne; Mark Teh; Nicola Good; John Kolbe; Megan Williams; Karen Pui; Tony Merriman; Karishma Sidhu; Nicola Dalbeth
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-13
Journal Detail:
Title:  Respiratory medicine     Volume:  -     ISSN:  1532-3064     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8908438     Medline TA:  Respir Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ltd.
Green Lane Respiratory Services, Auckland District Health Board, Private Bag 92024, Auckland 1142, New Zealand; Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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