Table 2.
Lesion and procedural characteristics
| Overall (n = 60) | DM (n = 37) | Non-DM (n = 23) | P value (DM vs. non-DM) | |
|---|---|---|---|---|
| Lesion location | 0.72 | |||
| LAD | 26 (43.3) | 15 (40.5) | 11 (47.8) | |
| LCx | 15 (25.0) | 9 (24.3) | 6 (26.1) | |
| RCA | 19 (31.2) | 13 (35.1) | 6 (26.1) | |
| AHA/ACC lesion classification | 0.27 | |||
| Type A/B1 | 12 (20.0) | 6 (16.2) | 6 (26.1) | |
| Type B2/C | 48 (80.0) | 31 (83.8) | 17 (73.9) | |
| Chronic total occlusion | 8 (13.3) | 6 (16.2) | 2 (8.7) | 0.34 |
| Bifurcation | 16 (26.7) | 9 (24.3) | 7 (30.4) | 0.60 |
| IVUS measurements before stenting | ||||
| Plaque volume | ||||
| Absolute data (mm3) | 98.1 ± 67.7 | 104.0 ± 77.3 | 89.2 ± 50.7 | 0.48 |
| Plaque burden (%) | 58.1 ± 10.5 | 57.4 ± 11.7 | 59.2 ± 8.4 | 0.62 |
| Lesion length (mm) | 14.4 ± 9.1 | 14..7 ± 10.3 | 14.0 ± 7.1 | 0.81 |
| Fibrous | ||||
| Absolute data (mm3) | 35.1 ± 25.8 | 37.6 ± 29.0 | 31.4 ± 20.3 | 0.44 |
| Relative data (%) | 60.4 ± 9.2 | 60.6 ± 10.0 | 59.9 ± 8.2 | 0.80 |
| Fibro-fatty | ||||
| Absolute data (mm3) | 7.3 ± 5.5 | 7.8 ± 6.3 | 6.5 ± 4.0 | 0.41 |
| Relative data (%) | 12.7 ± 5.2 | 12.1 ± 3.8 | 13.6 ± 6.8 | 0.37 |
| Dense-calcium | ||||
| Absolute data (mm3) | 5.2 ± 5.4 | 5.5 ± 6.1 | 4.7 ± 4.2 | 0.61 |
| Relative data (%) | 7.7 ± 6.0 | 7.4 ± 5.8 | 8.3 ± 6.5 | 0.64 |
| Necrotic-core | ||||
| Absolute data (mm3) | 12.9 ± 12.4 | 14.4 ± 14.1 | 10.7 ± 9.4 | 0.34 |
| Relative data (%) | 19.1 ± 5.3 | 19.8 ± 4.6 | 18.2 ± 6.1 | 0.33 |
| Procedural characteristics | ||||
| Stent length (mm) | 27.2 ± 13.7 | 30.2 ± 15.8 | 22.3 ± 7.4 | 0.011 |
| Stent size (mm) | 3.0 ± 0.4 | 2.9 ± 0.4 | 3.1 ± 0.4 | 0.14 |
| Maximum inflation pressure (atm) | 11.1 ± 1.4 | 11.2 ± 1.3 | 11.0 ± 1.6 | 0.55 |
| Overlap stenting | 11 (18.3) | 10 (27.0) | 1 (4.3) | 0.026 |
| Post-dilatation | 47 (78.3) | 27 (73.0) | 20 (87.0) | 0.17 |
| Rotablation | 6 (10.0) | 5 (13.5) | 1 (4.3) | 0.25 |
Values are mean ± standard deviation or number (%)
AHA/ACC American Heart Association/American College of Cardiology, IVUS intravascular ultrasound, LAD left anterior descending artery, LCx left circumflex artery, RCA right coronary artery