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  • Print publication year: 2008
  • Online publication date: December 2009

7 - Sinusitis

from Part I - Systems
    • By Theresa A. Gurney, Department of Otolaryngology–Head and Neck Surgery, University of California, San Francisco School of Medicine, San Francisco General Hospital, San Francisco, CA, Andrew H. Murr, Professor of Clinical Otolaryngology–Head and Neck Surgery, University of California, San Francisco School of Medicine, Chief of Service San Francisco General Hospital, San Francisco, CA
  • Edited by Rachel L. Chin, University of California, San Francisco
  • Publisher: Cambridge University Press
  • DOI: https://doi.org/10.1017/CBO9780511547454.008
  • pp 39-42

Summary

INTRODUCTION – AGENTS

Causative agents of acute bacterial sinusitis are similar to those seen in other infections of the head and neck and include Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis. Anaerobes are less frequently encountered in acute sinusitis but play a role in chronic sinusitis. Viruses can also cause acute rhinosinusitis.

EPIDEMIOLOGY

Sinusitis is a common chronic condition for which patients seek physician attention in the United States. There are more than 25 million patient visits per year pertaining to sinus problems, including allergic rhinitis, viral upper respiratory infections, vasomotor rhinitis, bacterial rhinosinusitis, and nasal polyposis. Sinusitis occurs in patients of all ages but is more common in adults. Children with cystic fibrosis, however, are a unique population at much higher risk for sinus disease caused by atypical organisms, especially Pseudomonas.

CLINICAL FEATURES

The spectrum of acute to chronic sinusitis is mostly dependent on the duration of signs and symptoms. Acute sinusitis is defined as an infection that generally clears within 4 weeks. Chronic sinusitis is an infection that has been present for about 12 weeks despite treatment. Subacute sinusitis lasts longer than 4 weeks but less than 12 weeks. Recurrent acute sinusitis may be referred to as chronic (recurrent) sinusitis if a patient is afflicted with more than four infections in a year, each clearing completely (Tables 7.1 and 7.2).

REFERENCES
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