APACHE II Critical Illness Scoring System
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What is an APACHE II Score?
The APACHE II (Acute Physiology and Chronic Health Evaluation II) method outlined by Knaus et al. in 1985 has been validated in many clinical trials, and is a commonly used ICU severity of illness estimation.
Scores calculated by the APACHE II method range from 0 to 71. Higher scores indicate greater severity of illness, and an increased risk of death.
The APACHE II Gadget is a Google Desktop mini-application that can be placed anywhere on your computer desktop or in a sidebar organizer to provide ready access to this useful medical scoring system.
The free APACHE II Gadget requires the free Google Desktop, and will run on Windows and MacOS computers.
Scores calculated by the APACHE II method range from 0 to 71. Higher scores indicate greater severity of illness, and an increased risk of death.
The APACHE II Gadget is a Google Desktop mini-application that can be placed anywhere on your computer desktop or in a sidebar organizer to provide ready access to this useful medical scoring system.
The free APACHE II Gadget requires the free Google Desktop, and will run on Windows and MacOS computers.
APACHE II Calculators
Free calculators for the APACHE II score
- Google Desktop APACHE II Calculator
- Free Google desktop calculator for the APACHE II score. Provides a mortality risk estimate as well. Requires Google Desktop.
- Web based APACHE II calculator
- Free web based APACHE II calculator from the French Society of Anesthesia and Intensive Care.
- MedCalc for the iPhone
- Free iPhone medical calculator that includes dozens of medical calculations and scores, including the APACHE II score.
APACHE II Information from PubMed
The medical research that led to the development of the APACHE II Score
- APACHE II: a severity of disease classification system.
- This paper presents the form and validation results of APACHE II, a severity of disease classification system. APACHE II uses a point score based upon initial values of 12 routine physiologic measurements, age, and previous health status to provide a general measure of severity of disease. An increasing score (range 0 to 71) was closely correlated with the subsequent risk of hospital death for 5815 intensive care admissions from 13 hospitals. This relationship was also found for many common diseases. When APACHE II scores are combined with an accurate description of disease, they can prognostically stratify acutely ill patients and assist investigators comparing the success of new or differing forms of therapy. This scoring index can be used to evaluate the use of hospital resources and compare the efficacy of intensive care in different hospitals or over time.
- The APACHE III prognostic system. Risk prediction of hospital mortality for critically ill hospitalized adults.
- The objective of this study was to refine the APACHE (Acute Physiology, Age, Chronic Health Evaluation) methodology in order to more accurately predict hospital mortality risk for critically ill hospitalized adults. We prospectively collected data on 17,440 unselected adult medical/surgical intensive care unit (ICU) admissions at 40 US hospitals (14 volunteer tertiary-care institutions and 26 hospitals randomly chosen to represent intensive care services nationwide).
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