Brain abscesses in a patient with a patent foramen ovale: a case report

Fuad Jan1, Abdul Moiz Hafiz, Saurabh Gupta

  • 1Department of Medicine, Division of Cardiovascular Disease, University of Wisconsin School of Medicine and Public Health, Milwaukee Clinical Campus, North 12th Street, Milwaukee, Wisconsin, 53233, USA.

Abstract

Insights

A rare case of brain abscesses in an adult was linked to a patent foramen ovale, a heart defect allowing paradoxical microbial spread. This highlights a potential cause for recurrent brain infections.

Area of Science:

  • Neurology
  • Cardiology
  • Infectious Diseases

Background:

  • Brain abscesses are uncommon in adults, especially when associated with right-to-left cardiac shunting.
  • Periodontal disease can be a source of oral flora, a potential pathogen in brain infections.

Purpose of the Study:

  • To present a rare case of multiple brain abscesses in an adult.
  • To investigate the potential link between a patent foramen ovale and brain abscesses.
  • To explore the mechanism of paradoxical microbial dissemination.

Main Methods:

  • Case report of a 47-year-old male with periodontal disease and Streptococcus intermedius brain abscesses.
  • Comprehensive diagnostic workup including cardiac evaluation.
  • Literature review on patent foramen ovale and brain abscesses.

Main Results:

  • A patent foramen ovale was identified as the likely source of right-to-left shunting.
  • Oral flora was implicated as the causative agent, originating from periodontal disease.
  • Multiple brain abscesses were successfully treated.

Conclusions:

  • A silent patent foramen ovale may facilitate paradoxical microbial dissemination to the brain.
  • This association could explain otherwise cryptogenic brain abscesses.
  • Early detection of cardiac shunts may be crucial in managing recurrent brain infections.

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