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Calculator: ARISCAT (Canet) preoperative pulmonary risk index in adults

Calculator: ARISCAT (Canet) preoperative pulmonary risk index in adults


≤50 years old (0 points)

51 to 80 years old (3 points)

>80 years old (16 points)
Preoperative pulse oxygen saturation (SpO2)

≥96% (0 points)

91 to 95% (8 points)

≤90% (24 points)
Other clinical risk factors

Respiratory infection in the last month (17 points)

Preoperative anemia with hemoglobin ≤10 g/dL (11 points)

Emergency surgery (8 points)
Surgical incision

Upper abdominal (15 points)

Intrathoracic (24 points)
Duration of surgery

<2 hours (0 points)

2 to 3 hours (16 points)

>3 hours (23 points)

Important: Inputs must be complete to perform calculation.

Total criteria point count:


ARISCAT risk index interpretation

0 to 25 points: Low risk: 1.6% pulmonary complication rate
26 to 44 points: Intermediate risk: 13.3% pulmonary complication rate
45 to 123 points: High risk: 42.1% pulmonary complication rate

  • ARISCAT: Assess Respiratory Risk in Surgical Patients in Catalonia.

Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

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