Table 2.
Coronary angiographic data and collateral flow assessment
| Diabetic patients (n = 100) | Non-diabetic patients (n = 100) | p Value | |
| Vessel undergoing CFI measurement | |||
| Left anterior descending coronary artery | 39 (39%) | 51 (51%) | NS |
| Left circumflex coronary artery | 29 (29%) | 21 (21%) | NS |
| Right coronary artery | 32 (32%) | 28 (28%) | NS |
| Coronary angiographic data | NS | ||
| Percentage diameter stenosis | 68 (320) | 68 (30) | NS |
| Number of vessels diseased | 1.8 (0.8) | 1.8 (0.8) | NS |
| Number of stenoses | 3.0 (2.0) | 2.7 (1.9) | NS |
| Presence of chronic total coronary occlusion* | 27 (27%) | 21 (21%) | NS |
| Collateral flow assessment | NS | ||
| CFI† | 0.21 (0.12) | 0.19 (0.13) | NS |
| CFI in angiographically normal vessels | 0.20 (0.09) (n = 13) | 0.15 (0.08) (n = 13) | NS |
| CFI in chronic total coronary occlusions | 0.30 (0.14) (n = 18) | 0.30 (0.17) (n = 18) | NS |
| Angina pectoris during balloon occlusion | 60 (60%) | 69 (69%) | 0.15 |
| ST segment elevation in intracoronary ECG >0.1 mV | 74 (74%) | 79 (79%) | NS |
Data are mean (SD) or number (%) of CFI measurements.
*36 chronic total coronary occlusions were targeted for CFI measurement.
†Average of velocity and pressure derived CFI when measured simultaneously (n = 36).