Risk Index for Predicting Postoperative Respiratory Failure
Reprinted from Arozullah A, Daley J, Henderson W, Khuri S. Multifactorial risk index for predicting postoperative respiratory failure in men after noncardiac surgery. Annals of Surgery. 2000; 232: 243-253.
| Procedure-related | Points |
| AAA repair | 27 |
| Thoracic | 21 |
| Neurosurgery, upper abdominal, peripheral vascular | 14 |
| Neck | 11 |
| Emergency Surgery | 11 |
| Patient Related | Points |
| Albumin < 30g/L | 9 |
| BUN > 30 mg/dL | 8 |
| Partially or fully dependent functional status | 7 |
| History of COPD | 6 |
| Age > 70 | 6 |
| Age 60-69 | 4 |
| Total Points | Risk of Respiratory Failure (%) |
| < 10 | 0.5 |
| 11-19 | 2.2 |
| 20-27 | 5 |
| 28-40 | 11.6 |
| >40 | 30.5 |