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[Bacterial infections in intensive care units: etiology and pathogenesis]

S Esposito1, S Noviello

  • 1Istituto di Malattie Infettive, II Universita degli Studi di Napoli, Italy.

Le Infezioni in Medicina
|January 1, 1997
PubMed

Insights

Bacterial infections are a major cause of death in Intensive Care Units (ICUs), often originating from modified endogenous flora. Surveillance and local microbiological data are crucial for preventing these hospital-acquired infections.

Area of Science:

  • Critical Care Medicine
  • Infectious Diseases
  • Hospital Epidemiology

Context:

  • Bacterial infections are the primary cause of morbidity and mortality in Intensive Care Units (ICUs).
  • ICU-acquired infections account for 24% of all nosocomial infections.
  • Endogenous flora modification by nosocomial microorganisms is a key factor in 85% of ICU infections.

Purpose:

  • To review the epidemiology, pathogenesis, transmission, and diagnosis of major ICU-acquired bacterial infections.
  • To emphasize the role of microbiology in surveillance programs for ICU infections.
  • To advocate for local epidemiological evaluations using microbiological data for effective prevention.

Summary:

  • ICU bacterial infections, often from altered endogenous flora, lead to significant morbidity and mortality.
  • Nosocomial microorganisms replace normal flora, causing sepsis and respiratory/urinary tract infections.
  • Review covers epidemiologic features, pathogenesis, transmission, and diagnostics of these infections.

Impact:

  • Highlights the critical role of microbiology in ICU infection surveillance.
  • Stresses the need for each ICU to conduct its own epidemiological evaluation.
  • Promotes collaboration between clinical epidemiologists and infectious disease specialists for prevention programs.

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