CAPS Scoring System
| Extent of Native CAD and Degree of Revascularization | CAPS |
|---|---|
| Single-vessel disease ± 1 protected territory | 1 |
| 2-vessel disease + 2 protected territories | 2 |
| 2-vessel disease + 1 protected territory | 3 |
| 2-vessel disease + 0 protected territory | 4 |
| 3-vessel disease + 3 protected territories | 5 |
| 3-vessel disease + 2 protected territories | 6 |
| 3-vessel disease + 1 protected territory | 7 |
| 3-vessel disease + 0 protected territory | 8 |
CAD = coronary artery disease; CAPS = coronary artery protection score.