Document Detail


Development of microscopic polyangiitis in patients with chronic airway disease.
MedLine Citation:
PMID:  16211463     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Microscopic polyangiitis (MPA) is a rare systemic vasculitis syndrome, which is often accompanied by positive myeloperoxidase-specific antineutrophil cytoplasmic antibody (MPO-ANCA). While pulmonary involvement of MPA consists mainly of diffuse alveolar hemorrhage and interstitial pneumonia, bronchiectasis has been reported as a pulmonary lesion in association with MPA. To investigate the clinical features of patients with MPA, focusing on the presence or the absence of preceding chronic airway diseases (CAD), we conducted a retrospective observational study of 26 patients in the last 13 years at Saga University Hospital. The clinical records and radiologic chest examinations were reviewed retrospectively. Pulmonary manifestations were alveolar hemorrhage in 3 patients (12%) and interstitial pneumonia in 5 (19%). Bronchiectasis, defined by the findings of chest radiograph and computed tomography, was found in 9 patients (35%). Four patients (15%) with bronchiectasis and one patient (4%) with chronic bronchitis had experienced chronic bronchial suppuration prior to the onset of MPA. Ten patients were classified as having chronic airway disease (CAD) before the onset of MPA. MPO-ANCA tended to be lower in the CAD group than in the non-CAD group. None of the patients in the CAD group had pulmonary hemorrhage or interstitial pneumonia. Only one patient (10%) in the CAD group died within 90 days of the onset of MPA, while 7 (43.8%) of the non-CAD group died. Our study suggests that MPA may result in part from CAD and that the clinical course of MPA with CAD may be different from MPA without CAD.
Authors:
K Takahashi; S Hayashi; O Ushiyama; N Sueoka; M Fukuoka; K Nagasawa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Lung     Volume:  183     ISSN:  0341-2040     ISO Abbreviation:  Lung     Publication Date:    2005 Jul-Aug
Date Detail:
Created Date:  2005-10-07     Completed Date:  2005-11-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7701875     Medline TA:  Lung     Country:  United States    
Other Details:
Languages:  eng     Pagination:  273-81     Citation Subset:  IM    
Affiliation:
Department of Medicine, Saga University Medical School, Nabeshima 5-1-1, Saga 849-8501, Japan. hayashs@cc.saga-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Antibodies, Antineutrophil Cytoplasmic / immunology
Chronic Disease
Female
Humans
Lung Diseases / complications*,  mortality
Male
Middle Aged
Peroxidase / immunology
Retrospective Studies
Vasculitis / etiology*
Chemical
Reg. No./Substance:
0/Antibodies, Antineutrophil Cytoplasmic; EC 1.11.1.7/Peroxidase

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