End
ARISCAT Score
Predicts the risk of postoperative pulmonary complications (PPC) within 30 days based on 7 validated preoperative factors.
Age
Patient’s current age
Preoperative SpO2
Measured on room air
Respiratory Infection
Within the last 1 month
Preoperative Anemia
Hemoglobin ≤ 10 g/dL
Surgical Incision Site
Select the most invasive site
Surgery Duration
Estimated or actual time
Emergency Surgery
Unplanned/Urgent intervention
0
Total Points
Risk Category
Estimated PPC Rate: -%
| Score Range | Risk Class | PPC Rate (%) |
|---|---|---|
| < 26 | Low Risk | 1.6% |
| 26 – 44 | Intermediate Risk | 13.3% |
| ≥ 45 | High Risk | 42.1% |
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PPC Definition: In the ARISCAT study, complications include respiratory failure, pneumonia, pleural effusion, atelectasis, pneumothorax, bronchospasm, or aspiration pneumonitis.
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Smoking Status: Interestingly, smoking was not an independent predictor in the original ARISCAT validation, though it remains a critical clinical factor for preoperative optimization.
