Angiographic scoring factors (adapted from reference 8)
| Extent of coronary disease | Score |
|---|---|
| No stenosis > 50% | 0 |
| 1 vessel disease 50–74% | 8 |
| > 1 vessel disease (50–74%) | 9 |
| 1 vessel disease (75–89%) | 9 |
| 1 vessel disease (> 90%) | 14 |
| 2 vessel disease (50–89%) | 15 |
| 2 vessel disease (> 90%) not involving LAD | 15 |
| 1 vessel disease (> 90%) involving proximal LAD | 19 |
| 2 vessel disease (> 90%) involving LAD | 19 |
| 3 vessel disease | 19 |
| 3 vessel disease (> 90%) in at least one | 19 |
| 3 vessel disease with 75–89% stenosis involving proximal LAD | 19 |
| 3 vessel disease with > 90% stenosis involving proximal LAD | 27 |
| Left main (50%) | 27 |
| Left main (75–89%) | 32 |
| Left main (> 90%) | 36 |
LAD, left anterior descending coronary artery.