SAPS II

SAPS II or Simplified Acute Physiology Score II is a severity prediction score, used in the field of Intensive Care Medicine to determine the severity of disease for patients admitted to Intensive care units. It is a part of a class of disease severity scores, the first of which was the APACHE II score.

Overview

The SAPS II score was first developed in 1991 by Le Gall et al. It is calculated from 17 different variables, 12 of which are physiological measurements, and 5 of which are disease related. The score ranges from 0 to 163, with higher scores indicating more severe disease and higher risk of death.

Calculation

The SAPS II score is calculated from the worst values of the following variables in the first 24 hours of ICU admission:

• Age
• Heart rate
• Systolic blood pressure
• Temperature
• Glasgow Coma Scale
• Partial pressure of oxygen in arterial blood
• Bicarbonate
• Sodium
• Potassium
• Creatinine
• Hematocrit
• White blood cell count
• Chronic diseases
• Type of admission

Usage

The SAPS II score is used to predict mortality in ICU patients. It is also used in research to compare the outcomes of different patient groups, and to adjust for disease severity in statistical analyses.

Limitations

While the SAPS II score is widely used, it has some limitations. It does not take into account the progression of disease, and it may not be accurate for patients with certain conditions, such as those with human immunodeficiency virus (HIV) infection.

See Also

• APACHE II
• SOFA score
• Mortality prediction

References

SAPS II Resources
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