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Related Experiment Videos

Pneumococcal endocarditis and disseminated infection.

S R Heard1, J Pickney, D S Tunstall-Pedoe

  • 1Department of Medical Microbiology, St Bartholomew's Hospital, West Smithfield, London.

Journal of Clinical Pathology
|November 1, 1992
PubMed
Summary

This case highlights a rare Streptococcus pneumoniae endocarditis infection. Appropriate antibiotic selection is crucial for treating both the infection and its metastatic complications.

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Area of Science:

  • Infectious Diseases
  • Cardiology
  • Neurology

Background:

  • Streptococcus pneumoniae is a common cause of pneumonia and meningitis, but rarely associated with endocarditis.
  • Endocarditis, particularly with Staphylococcus aureus, is known for metastatic complications.

Observation:

  • A 61-year-old woman presented with meningitis symptoms and back pain, with positive blood cultures for S. pneumoniae.
  • Echocardiogram revealed mitral valve vegetations, and a bone scan showed a lesion at S1/S2, indicating metastatic spread.
  • Initial benzylpenicillin treatment improved cardiac and neurological symptoms, but back pain persisted.

Findings:

  • Complete resolution of back pain occurred only after switching to clindamycin, suggesting specific antibiotic penetration or activity was required.
  • This case underscores the metastatic potential of S. pneumoniae, even in the rare context of endocarditis.

Implications:

  • Highlights the importance of considering antibiotic choice based on infection site and organism sensitivity, not just in vitro susceptibility.
  • Emphasizes the need for prompt diagnosis and tailored treatment for rare but severe presentations of S. pneumoniae endocarditis to improve patient outcomes.

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