Lung abscess: Difference between revisions

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Revision as of 10:00, 16 August 2019

Microbiology

  • Usually polymicrobial, including oral anaerobes
  • Can also be monomicrobial, caused by Klebsiella, Staphylococcus aureus, Pseudomonas aeruginosa, Burkholderia pseudomallei (melioidosis), Pasteurella multocida, group A streptococcus, Haemophilus influenzae types b and c, Legionella spp., Rhodococcus equi, Actinomyces spp., and Nocardia spp.

Pathophysiology

  • Mostly from chronic aspiration

Risk Factors

  • Chronic aspiration from any etiology
    • Alcohol use disorder
    • Seizures, stroke, drug overdose, general anesthesia
  • Dysphagia or respiratory dysfunction from ALS, Parkinson’s disease, or stroke
  • Tooth extraction

Management

  • Antibiotics
  • Rarely, surgical intervention