MDCalc

Simplified Acute Physiology Score (SAPS) 3

Estimates the probability of mortality for ICU patients on admission.

The SAPS 3 Score predicts hospital mortality upon ICU admission, using patient characteristics, indication for ICU admission, and physiologic derangement upon ICU admission.

Age, years

Length of stay before ICU admission, days

Intrahospital location before ICU admission

Use of major therapeutic options before ICU admission

Planned or unplanned ICU admission

Surgical status at ICU admission

Acute infection at ICU admission

Glasgow Coma Scale/Score

Lowest within 1 hr of ICU admission

Total bilirubin, mg/dL (µmol/L)

Highest within 1 hr of ICU admission

Body temperature, °C (°F)

Highest within 1 hr of ICU admission

Creatinine, mg/dL (µmol/L)

Highest within 1 hr of ICU admission

Heart rate, beats/min

Highest within 1 hr of ICU admission

Leukocytes, G/L

Highest within 1 hr of ICU admission

pH

Lowest within 1 hr of ICU admission

Platelets, G/L

Lowest within 1 hr of ICU admission

Systolic blood pressure, mm Hg

Lowest within 1 hr of ICU admission

Oxygenation

Comorbidities

Cancer therapy

Chemotherapy, immunosuppression, radiotherapy, steroid treatment

Chronic HF (NYHA IV)

Hematological cancer

Cirrhosis

AIDS

Metastatic cancer

Reason(s) for ICU admission

Cardiovascular/neurologic

If both reasons are present, only the worse value (-4) is scored; select "Neurologic: seizures."

Cardiovascular: hypovolemic hemorrhagic shock, hypovolemic non-hemorrhagic shock

Cardiovascular: septic shock

Cardiovascular: anaphylactic shock, mixed and undefined shock

Neurologic: coma, stupor, obtunded patient, vigilance disturbances, confusion, agitation, delirium

Neurologic: focal neurologic deficit

Neurologic: intracranial mass effect

Digestive: acute abdomen, other

Digestive: severe pancreatitis

Hepatic: liver failure

Result:

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Advice
  • All patients receive an offset of 16 points to avoid negative scores.
  • As the total score increases, so does the probability of in-hospital mortality. 
  • SAPS 3 can be used to guide discussions regarding prognosis and goals of care for patients who are admitted to the intensive care unit.

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