Collateral flow data and changes in collateral flow index between first and second occlusion
| Occlusion group | Stenosis group | p Value | |
| n | 27 | 27 | |
| Sufficient collaterals3-150 | 18/27 | 5/27 | 0.0002 |
| Angiographic collateral degree | 2.3 (0.8) | 0.8 (0.7) | 0.0001 |
| CFI at first occlusion | 0.29 (0.17) | 0.27 (0.13) | NS |
| Decreased CFI | 17 (63%) | 8 (30%) | 0.03 |
| Increased CFI | 10 (37%) | 17 (63%) | 0.03 |
| Unchanged CFI | 0 | 2 (7%) | NS |
| Time from start of intervention to first CFI measurement (min) | 21 (9) | 19 (14) | NS |
Values are mean (SEM) or n (%).
↵3-150 No intracoronary ECG ST changes during occlusion.
CFI, collateral flow index.