Postoperative Pulmonary Complication Risk

This estimates a patient's risk of developing lung complications after surgery, based on patient and procedure-related factors, helping guide preoperative planning.

Postoperative Pulmonary Risk (ARISCAT)

ARISCAT Score
0
points · max 123
Low risk

What the Score Means

< 26

Low risk of postoperative pulmonary complications.

26–44

Intermediate risk.

≥ 45

High risk — optimize and monitor closely.

Frequently Asked Questions

Why does surgical site matter so much for pulmonary risk?

Upper abdominal and thoracic incisions impair diaphragm function and coughing far more than peripheral procedures, substantially raising postoperative pulmonary complication risk.

What are the ARISCAT risk bands?

A score under 26 is low risk, 26–44 is intermediate, and 45 or higher is high risk of postoperative pulmonary complications.

What complications does it predict?

Respiratory failure, respiratory infection, pleural effusion, atelectasis, pneumothorax, bronchospasm, and aspiration pneumonitis within the postoperative period.

How is a high score used?

It guides preoperative optimization and postoperative planning — lung expansion techniques, careful analgesia, and closer respiratory monitoring.

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