SAPS II

SAPS II is a severity of disease classification system (Le Gall, Lemeshow, Saulnier, 1993). Its name stands for "Simplified Acute Physiology Score", and is one of several ICU scoring systems.

Application

SAPS II was designed to measure the severity of disease for patients admitted to Intensive care units aged 15 or more.

24 hours after admission to the ICU, the measurement has been completed and resulted in an integer point score between 0 and 163 and a predicted mortality between 0% and 100%. No new score can be calculated during the stay. If a patient is discharged from the ICU and readmitted, a new SAPS II score can be calculated.

This scoring system is mostly used to:

describe the morbidity of a patient when comparing the outcome with other patients.
describe the morbidity of a group of patients when comparing the outcome with another group of patients

Calculation

The point score is calculated from 12 routine physiological measurements during the first 24 hours, information about previous health status and some information obtained at admission.

The parameters are:

Age
Heart Rate
Systolic Blood Pressure
Temperature
Glasgow Coma Scale
Mechanical Ventilation or CPAP
PaO2
FiO2
Urine Output
Blood Urea Nitrogen
Sodium
Potassium
Bicarbonate
Bilirubin
White Blood Cell
Chronic diseases
Type of admission

The calculation method is optimized for paper schemas. In contrast to APACHE II, the resulting value is much better at comparing patients with different diseases .

The calculation method results in a predicted mortality, that is pure statistics. It does not tell the individual patient's chance of survival. The main purpose of this calculation is to provide a value that can be averaged for a group of patients, since it gives very unprecise values to calculate an average of the scores of a group of patients .

References

Jean-Roger Le Gall, MD; Stanley Lemeshow, PhD; Fabienne Saulnier, MD. (1993). A New Simplified Acute Physiology Score (SAPS II) Based on a European/North American Multicenter Study. JAMA. 1993;270:2957-2963 This is the first published description of the scoring system
Commonly used website to calculate a SAPS II score

Intensive care medicine

General terms

Conditions

Organ system failure	Shock sequence SIRS Sepsis Severe sepsis Septic shock Multiple organ dysfunction syndrome Other shock Cardiogenic shock Distributive shock Anaphylaxis Obstructive shock Neurogenic shock Spinal shock Organ failure Acute renal failure Acute respiratory distress syndrome Acute liver failure Respiratory failure Multiple organ dysfunction syndrome Neonatal infection Polytrauma Coma

Complications	Critical illness polyneuropathy / myopathy Critical illness–related corticosteroid insufficiency Decubitus ulcers Fungemia Stress hyperglycemia Stress ulcer

Iatrogenesis	Methicillin-resistant Staphylococcus aureus Oxygen toxicity Refeeding syndrome Ventilator-associated lung injury Ventilator-associated pneumonia

Diagnosis

Life supporting treatments

Drugs

ICU scoring systems

Physiology

Organisations

Related specialties

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