Related Experiment Videos
Evaluation of definitions for sepsis.
1Department of Anesthesiology, George Washington University Medical Center, Washington D.C.
Chest
|June 1, 1992
Summary
Sepsis risk varies significantly among intensive care unit (ICU) patients. A continuous measure of hospital mortality risk, based on physiologic abnormalities, offers a more accurate description of sepsis than current definitions.
Area of Science:
- Critical Care Medicine
- Infectious Diseases
- Epidemiology
Background:
- Sepsis definitions are crucial for patient management and research.
- Current definitions may not fully capture the spectrum of sepsis severity and risk.
Purpose of the Study:
- To evaluate current sepsis definitions.
- To clarify and quantify the risk for intensive care unit (ICU) patients with sepsis.
Main Methods:
- Prospective cohort analysis of 519 ICU patients with sepsis across 40 US hospitals.
- Data included patient demographics, comorbidities, sepsis origin, and daily physiologic measurements.
- Individual mortality risk was calculated using APACHE III score, treatment location, and sepsis etiology.
Main Results:
- Urinary source sepsis had lower mortality (30%) than other causes (54%).
- ICU admission from the emergency department correlated with lower mortality (37%) compared to other admission sources (55%).
- Existing definitions like 'sepsis syndrome' and 'septic shock' showed different mortality rates but lacked precision in individual risk stratification.
Conclusions:
- Sepsis is a complex continuum with varied severity and mortality risk.
- A continuous measure of hospital mortality risk, derived from physiologic abnormalities, provides a more accurate description of sepsis.