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Related Experiment Videos

Eustachian valve endocarditis caused by Streptococcus viridans.

M A Schmidt1, D Nigbor, D T Eitzman

  • 1Division of Cardiology, Department of Internal Medicine, University of Michigan, Ann Arbor 48109-0644, USA.

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
|October 11, 2001
PubMed
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This case report details a rare instance of Streptococcus viridans causing endocarditis on the eustachian valve in a patient with atrial fibrillation. Successful treatment with antibiotics and sotalol hydrochloride led to resolution of the vegetation and cardiac rhythm normalization.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Valvular Heart Disease

Background:

  • Eustachian valve vegetations are rare and can be associated with infective endocarditis.
  • Atrial fibrillation is a common arrhythmia that can complicate cardiac conditions.
  • Ethanol detoxification patients may have increased risk factors for infections.

Observation:

  • A 76-year-old male patient presented with rapid ventricular response atrial fibrillation refractory to cardioversion.
  • Transesophageal echocardiogram identified a vegetation on the eustachian valve.
  • Blood cultures confirmed Streptococcus viridans as the causative agent.

Findings:

  • The patient received appropriate antibiotic therapy and sotalol hydrochloride.
  • Resolution of the eustachian valve vegetation was observed.

Related Experiment Videos

  • The patient converted to normal sinus rhythm, indicating successful treatment.

    • Implications:

    • This is the first reported case of eustachian valve endocarditis caused by Streptococcus viridans.
    • Highlights the importance of considering rare etiologies in complex cardiac cases.
    • Suggests a potential link between eustachian valve abnormalities and infective endocarditis.