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| Risk | Score |
| Age | 1 point per 5 years over 60 |
| Female | 1 |
| Raised serum creatinine | 2 |
| Extracardiac arteriopathy | 2 |
| Pulmonary disease | 1 |
| Neurological dysfunction | 2 |
| Redo surgery | 3 |
| Active endocarditis | 3 |
| Critical preop state | 3 |
| Unstable angina | 2 |
| LVEF 30‐50% | 1 |
| LVEF <30% | 2 |
| Recent infarction | 2 |
| PAP>60 | 2 |
| Emergency | 2 |
| Ventricular septal rupture | 4 |
| Other than isolated CABG | 2 |
| Thoracic aortic surgery | 3 |
| Risk level | Total Score |
| Low Risk | 0‐2 |
| Medium Risk | 3‐5 |
| High Risk | 6‐24 |
