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Osteoarticular infections complicating infective endocarditis: a study of 30 cases between 1969 and 2002 in a

Cristiane Lamas1, Márcio Bóia, Susannah J Eykyn

  • 1Departamento de Medicina Tropical, Instituto Oswaldo Cruz, Fiocruz. cristianelamas@hotmail.com

Scandinavian Journal of Infectious Diseases
|June 27, 2006
PubMed

Insights

Osteoarticular infections (OAI) occurred in 4.3% of infective endocarditis (IE) cases. Intravenous drug users (IVDU) had a higher OAI incidence (17.6%), with Staphylococcus aureus bacteraemia and IVDU being key risk factors.

Area of Science:

  • Infectious Diseases
  • Cardiology
  • Orthopedics

Background:

  • Infective endocarditis (IE) is a serious infection affecting heart valves.
  • Osteoarticular infections (OAI), including osteomyelitis and septic arthritis, are known complications of IE.
  • Understanding risk factors for OAI in IE is crucial for early diagnosis and management.

Purpose of the Study:

  • To determine the incidence of osteoarticular infections (OAI) in patients with infective endocarditis (IE).
  • To identify risk factors associated with the development of OAI in IE patients.
  • To evaluate diagnostic criteria and microbiological findings in OAI complicating IE.

Main Methods:

  • Retrospective analysis of 693 IE episodes at St. Thomas' Hospital (1969-2002).
  • Assessment of OAI incidence, clinical presentation, and diagnostic criteria (modified Duke and St. Thomas').
  • Bivariate and multivariate analyses to identify risk factors for OAI in IE.

Main Results:

  • OAI occurred in 4.3% of IE episodes; incidence was 17.6% in intravenous drug users (IVDU).
  • Staphylococcus aureus bacteraemia and IVDU were significant independent risk factors for OAI in IE.
  • Vertebrae and large joints were most commonly involved; mortality was 33%.

Conclusions:

  • OAI is a significant complication of IE, particularly in IVDU.
  • Prompt recognition of risk factors like S. aureus bacteraemia and IVDU is essential for managing IE patients.
  • Effective diagnostic strategies and timely intervention are critical to reduce morbidity and mortality associated with OAI in IE.

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