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Infective endocarditis caused by Streptococcus agalactiae.

S D Pringle1, A C McCartney, D A Marshall

  • 1University Department of Medical Cardiology, Royal Infirmary, Glasgow, U.K.

International Journal of Cardiology
|August 1, 1989
PubMed
Summary
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Infective endocarditis caused by Streptococcus agalactiae (group B streptococcus) is rare but deadly. Early surgical intervention may be crucial for survival, as antibiotics alone are often insufficient.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Microbiology

Background:

  • Infective endocarditis (IE) is a serious infection of the heart's inner lining or valves.
  • Streptococcus agalactiae (group B Streptococcus) is an uncommon cause of IE, particularly in adults without underlying risk factors.

Observation:

  • A series of five cases of IE caused by S. agalactiae were identified in Glasgow over 30 months.
  • Patients presented with acute symptoms and severe complications, including major arterial emboli.
  • Only one patient had pre-existing valvular heart disease.

Findings:

  • Despite prompt diagnosis and antibiotic treatment, three out of five patients died.
  • Mortality was high, with deaths occurring both before and after surgical intervention.

Related Experiment Videos

  • Two patients recovered fully following successful valve surgery.

    • Implications:

    • S. agalactiae IE is a critical condition with a high mortality rate.
    • Antibiotic therapy alone is often inadequate for controlling this infection.
    • Early surgical intervention, including valve replacement, may be essential for improving patient outcomes.