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Changing trends of infective endocarditis

Naveed Ullah Khan1, Muhammad Tariq Farman, Jawaid Akbar Sial

  • 1National Institute of Cardiovascular Diseases, Karachi.

JPMA. the Journal of the Pakistan Medical Association
|January 9, 2010
PubMed

Insights

This study found that nearly half of infective endocarditis cases were culture-negative, with Staphylococcus being the most common pathogen. This highlights potential shifts in bacterial endocarditis trends.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Microbiology

Background:

  • Infective endocarditis (IE) is a serious infection affecting heart valves.
  • Understanding the causative organisms and culture results is crucial for effective treatment.

Purpose of the Study:

  • To determine the frequency of culture-positive and culture-negative endocarditis.
  • To identify the types of organisms responsible for bacterial endocarditis at the National Institute of Cardiovascular Diseases (NICVD), Karachi.

Main Methods:

  • A descriptive, cross-sectional study was conducted from March to October 2006.
  • Seventy-five patients meeting Duke Criteria for definite infective endocarditis were included.
  • Data collection involved clinical assessment and blood cultures.

Main Results:

  • The study included 75 patients, predominantly males (70%) and young (90% < 40 years).
  • Blood cultures were positive in 53.3% of cases and negative in 46.7%.
  • Staphylococcus, particularly coagulase-negative staphylococci (35%), was the most common organism in culture-positive cases.

Conclusions:

  • The findings suggest a changing spectrum of organisms causing bacterial endocarditis in the local community compared to Western reports.
  • Further research is needed to understand the reasons behind these evolving trends in infective endocarditis.
Abstract

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