Acute bronchitis: Difference between revisions

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**Do not treat patients with antibiotics unless:<ref>Tan T, Little P, Stokes T. Antibiotic prescribing for self limiting respiratory tract infections in primary care: summary of NICE guidance. BMJ. Jul 23 2008;337</ref>
**Do not treat patients with antibiotics unless:<ref>Tan T, Little P, Stokes T. Antibiotic prescribing for self limiting respiratory tract infections in primary care: summary of NICE guidance. BMJ. Jul 23 2008;337</ref>
***older than 65 years  
***older than 65 years  
***recent hospitalizations in the past year
***Recent hospitalizations in the past year
***Diabetes
***Diabetes
***On chronic steroids
***On chronic steroids

Revision as of 03:34, 23 February 2014

Background

  • Inflammation of large airways of the lung
  • PNA must be excluded by clinical evaluation or by CXR
    • If all 5 are negative PNA is safely excluded:
      • 1. HR >100
      • 2. RR >24
      • 3. Temp >38 (100.4)
      • 4. Exam findings c/w focal consolidation, egophony, or fremitus
      • 5. Age >64yr

Epidemiology

  • Viruses are most common cause
    • Influenza, paraflu, RSV, corona, adeno, rhino
  • Bacterial cause occurs in <10% of cases
    • Mycoplasma, C. pneumoniae, pertussis (1% of bronchitis cases)

Diagnosis

  • Cough, with or without sputum, without e/o PNA, common cold, or Asthma
    • Cough >5d is more suggestive of bronchitis than common cold
    • Cough may persist for 10-20d
    • Cough >3wk suggests asthma, COPD, pertussis, postnasal drip, GERD
  • Often follows URI

Work-Up

  • CXR only indicated in elderly or suspicion for PNA

Treatment

  • American College of Chest Physicians 2006 Guidelines[1]
    • Routine treatment w/ abx is not justified
    • Antitussive agents can be useful (codeine, dextromethorphan)
    • In individuals without comorbidities antibiotics have no improvement in symptoms or duration [2]
    • Do not treat patients with antibiotics unless:[3]
      • older than 65 years
      • Recent hospitalizations in the past year
      • Diabetes
      • On chronic steroids
    • If treating based upon the above criteria then a 5 day treatment is preferred [4]
    • Bronchodilators only useful if there is wheezing

Source

  1. Braman SS. Chronic cough due to chronic bronchitis: ACCP evidence-based clinical practice guidelines. Chest. Jan 2006;129(1 Suppl):104S-115S.
  2. Aagaard E, Gonzales R. Management of acute bronchitis in healthy adults. Infect Dis Clin North Am. Dec 2004;18(4):919-37
  3. Tan T, Little P, Stokes T. Antibiotic prescribing for self limiting respiratory tract infections in primary care: summary of NICE guidance. BMJ. Jul 23 2008;337
  4. El Moussaoui R, Roede BM, Speelman P, Bresser P, Prins JM, Bossuyt PM. Short-course antibiotic treatment in acute exacerbations of chronic bronchitis and COPD: a meta-analysis of double-blind studies. Thorax. May 2008;63(5):415-22