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[Infective endocarditis].

R Proença1, A Serrano, T Martins

  • 1Serviços de Medicina e Doenças Infecciosas, Hospital de Curry Cabral, Lisboa.

Acta Medica Portuguesa
|July 13, 2000
PubMed
Summary
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Infectious Endocarditis (IE) patterns shifted over ten years, with later cases predominantly affecting young, HIV-infected drug addicts, often with Staphylococcus aureus. Despite this, antibiotic treatment offered a good prognosis for these patients.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Epidemiology

Background:

  • Infectious Endocarditis (IE) is a serious infection affecting heart valves.
  • Understanding epidemiological shifts in IE is crucial for effective treatment strategies.

Purpose of the Study:

  • To compare two distinct patient cohorts with IE over a ten-year interval.
  • To identify changes in patient demographics, causative agents, and clinical presentation of IE.

Main Methods:

  • Retrospective analysis of two patient series hospitalized between 1970-1976 and 1988-1998.
  • Comparison of patient characteristics, microbiological data, and clinical outcomes.
  • Utilized transthoracic and transesophageal echocardiography for diagnosis.

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Main Results:

  • The later series (1988-1998) featured younger patients, often drug addicts with HIV infection, and a higher incidence of Staphylococcus aureus.
  • The earlier series (1970-1976) predominantly involved patients with prior valvular lesions, presenting with subacute courses and Streptococcus viridans.
  • Right-sided endocarditis and acute presentations were more common in the later cohort.

Conclusions:

  • IE epidemiology has evolved, with a notable increase in cases among young, HIV-positive intravenous drug users.
  • Despite complex comorbidities like HIV, antibiotic therapy demonstrates a relatively favorable prognosis for IE in this population.
  • Echocardiography plays a vital role in diagnosing Infectious Endocarditis.