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Published in: Clinical Reviews in Allergy & Immunology 1/2015

01-02-2015

Infection in Severe Asthma Exacerbations and Critical Asthma Syndrome

Authors: Christian E. Sandrock, Andrew Norris

Published in: Clinical Reviews in Allergy & Immunology | Issue 1/2015

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Abstract

In chronic persistent asthma and severe acute exacerbations of bronchial asthma, infectious agents are the predominant triggers that drive disease and airway pathobiology. In acute exacerbations of bronchial asthma (AEBA) including near fatal and fatal asthma, viral agents, particularly human rhinovirus-C, respiratory syncytial virus and influenza A appear to be the more prevalent and recurring threats. Both viral, and to a lesser extent bacterial agents, can play a role, and co-infection may also be present and worsen prognosis in hospitalized patients, placing a portion at risk for critical asthma syndrome. During severe acute exacerbations, infectious agents must be treated empirically, but the initial treatment regimens can vary and viral coverage may also vary based on seasonality and patient age. Early treatment with ceftriaxone and azithromycin, along with oseltamivir in winter months, should be initiated with all cases of severe exacerbations where infection is suspected, and definitely in critical asthma syndrome until infection is excluded by appropriate diagnostic testing. In this manuscript we will outline the impact of the major viral agents on severe asthma including the data from the 2009 H1N1 influenza pandemic. The role of bacterial infections in acute exacerbations of asthma will also be reviewed as well as the benefit of empiric antibiotics and the role of macrolides in both acute and chronic asthma.
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Metadata
Title
Infection in Severe Asthma Exacerbations and Critical Asthma Syndrome
Authors
Christian E. Sandrock
Andrew Norris
Publication date
01-02-2015
Publisher
Springer US
Published in
Clinical Reviews in Allergy & Immunology / Issue 1/2015
Print ISSN: 1080-0549
Electronic ISSN: 1559-0267
DOI
https://doi.org/10.1007/s12016-014-8435-x

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