Semin Respir Crit Care Med 2007; 28(4): 451-458
DOI: 10.1055/s-2007-985666
Copyright © 2007 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA.

Pulmonary Complications of Polymyositis and Dermatomyositis

Maryam Fathi1 , Ingrid E. Lundberg2 , Göran Tornling1
  • 1Department of Medicine, Division of Respiratory Medicine and Allergy, Karolinska University Hospital, Solna, Karolinska Institutet, Stockholm, Sweden
  • 2Rheumatology Unit, Department of Medicine, Karolinska University Hospital, Solna, Karolinska Institutet, Stockholm, Sweden
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Publication History

Publication Date:
03 September 2007 (online)

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ABSTRACT

Polymyositis and dermatomyositis are systemic inflammatory diseases with unknown etiology and prognosis. Pulmonary involvement is increasingly recognized to be a major complication and a common cause of morbidity and mortality in these diseases. Thus a thorough pulmonary evaluation is necessary to permit appropriate management. There are three categories of pulmonary complications in myositis: aspiration pneumonia, hypoventilation, and interstitial lung disease (ILD). ILD is a frequent pulmonary complication in patients with myositis, and respiratory symptoms are not reliable signs for diagnosis. The strongest predictive factor for ILD in patients with myositis is the presence of antihistidyl transfer ribonucleic acid (tRNA) synthetase antibodies (anti-Jo-1), but ILD may also be present in patients without these autoantibodies. Therefore, all patients with polymyositis or dermatomyositis should be investigated with chest radiography, high-resolution computed tomography, and lung function tests.

REFERENCES

Ingrid LundbergM.D. Ph.D. 

Rheumatology Unit, Karolinska University Hospital, Solna, Karolinska Institutet

SE- 171 76 Stockholm, Sweden

Email: ingrid.Lundberg@ki.se