Risk calculator for postoperative pulmonary complications


The ARISCAT Score was developed to predict the risk of in-hospital postoperative pulmonary complications - as defined as the occurrence of respiratory failure, respiratory infection, pleural effusion, atelectasis, pneumothorax, bronchospasm or aspiration pneumonitis - after surgery with general, neuraxial or regional anesthesia.



≤ 50 years (0 points)

51 - 80 years (+3 points)

> 80 years (+16 points)

Preoperative SpO2

≥96% (0 points)

91-95% (+8 points)

≤ 90% (+ 24 points)

Respiratory infection in the last month

No (0 points)

Yes (+17 points)

Preoperative anemia (Hb ≤ 10g/dL)

No (0 points)

Yes (+11 points)

Surgical incision

Peripheral (0 points)

Upper abdominal (+15 points)

Intrathoracic (+24 points)

Duration of surgery (hours)

< 2 (0 points)

2-3 (+16 points)

> 3 (+23 points)

Emergency procedure

No (0 points)

Yes (+8 points)


Canet J, Gallart L, Gomar C, et al.

Anesthesiology. 2010;113(6):1338-50.

Mazo V, Sabato S, Canet J, et al.

Anesthesiology. 2014;121(2):219-31.

The ARISCAT Score calculator is created by QxMD.

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1. Age?

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