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[Actinobacillus actinomycetemcomitans endocarditis]

A Avigdor1, H Mayan, M Mouallem

  • 1Dept. of Medicine E, Chaim Sheba Medical Center, Tel Hashomer.

Harefuah
|May 16, 1993
PubMed
Summary
This summary is machine-generated.

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Bacterial endocarditis from Actinobacillus actinomycetemcomitans (AA) is rare. This case highlights a dental abscess as a potential origin, complicated by coronary artery embolism.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Cardiology

Background:

  • Actinobacillus actinomycetemcomitans (AA), a Gram-negative coccobacillus, typically colonizes the oral cavity.
  • While usually causing localized oral infections, AA can lead to severe systemic diseases.
  • Bacterial endocarditis is an infection of the heart's inner lining, often involving heart valves.

Observation:

  • A rare case of bacterial endocarditis caused by Actinobacillus actinomycetemcomitans (AA) is presented.
  • The patient, a 63-year-old male, likely developed the infection from a dental abscess.
  • The endocarditis complicated with acute myocardial ischemia, suspected to be due to coronary artery embolism.

Findings:

  • This report details a unique instance of AA-induced endocarditis.

Related Experiment Videos

  • The patient experienced myocardial ischemia secondary to potential coronary embolism from the infected valve.
  • Optimal bacterial culture requires prolonged incubation (2-3 weeks) in a CO2-rich environment.

    • Implications:

    • Highlights the potential for oral bacteria like AA to cause severe systemic infections, including endocarditis.
    • Emphasizes the importance of considering dental health in the context of systemic infections.
    • Suggests specific microbiological techniques for diagnosing rare bacterial causes of endocarditis.