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Related Experiment Videos

Bloodstream infections in the elderly.

B R Meyers1, E Sherman, M H Mendelson

  • 1Department of Medicine, Mount Sinai Hospital, City University of New York, New York 10029-6574.

The American Journal of Medicine
|April 1, 1989
PubMed
Summary

Bacteremia in elderly patients has a higher mortality rate. Appropriate antimicrobial therapy significantly increased survival rates in this population, regardless of infection source or pathogen.

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Area of Science:

  • Infectious Diseases
  • Geriatrics
  • Internal Medicine

Background:

  • Bacteremia presents a distinct clinical course and elevated mortality in elderly individuals compared to younger populations.
  • Understanding the specific challenges and outcomes of bloodstream infections in older adults is crucial for effective management.

Purpose of the Study:

  • To investigate the clinical course and outcome factors of bloodstream infections (bacteremia) in patients aged 65 and older.
  • To identify predictors of survival in elderly patients experiencing bacteremia.

Main Methods:

  • Retrospective review of 100 episodes of bacteremia in patients over 65 years old.
  • Analysis of patient demographics, infection acquisition site, causative microorganisms, and antimicrobial therapy appropriateness.

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  • Evaluation of factors influencing survival, including age, comorbidities, clinical presentation, and treatment efficacy.

    • Main Results:

    • The majority of elderly patients were female, febrile, and presented with altered mental status and neutrophilia.
    • Community-acquired infections were most common, with Gram-negative organisms predominating (e.g., E. coli, Klebsiella).
    • Overall survival was 60%, with higher rates for community-acquired and nursing home-acquired bacteremia compared to hospital-acquired infections. Appropriate antimicrobial therapy was associated with increased survival.

    Conclusions:

    • Bacteremia in the elderly is associated with significant morbidity and mortality.
    • Appropriate and timely antimicrobial therapy is a key determinant of survival in elderly patients with bacteremia.
    • Identifying infection source and causative pathogens aids in optimizing treatment strategies for improved outcomes.