Table 3. QCA analysis (per-patient analysis, index lesion).
| Parameters | Total (n = 146) | DEB + BMS (n = 74) | ZES (n = 72) | P value |
|---|---|---|---|---|
| Before index procedure | ||||
| Minimal luminal diameter, mm | 0.89 ± 0.40 | 0.92 ± 0.46 | 0.86 ± 0.32 | 0.419 |
| Reference vessel diameter, mm | 2.96 ± 0.55 | 2.98 ± 0.62 | 2.95 ± 0.46 | 0.787 |
| Diameter stenosis, mm | 72.6 ± 14.8 | 71.4 ± 14.9 | 73.8 ± 14.6 | 0.323 |
| Lesion length, mm | 18.7 ± 5.1 | 18.8 ± 3.8 | 18.6 ± 6.2 | 0.819 |
| After index procedure | ||||
| Minimal luminal diameter, mm | ||||
| In-stent | 2.54 ± 0.41 | 2.48 ± 0.43 | 2.61 ± 0.37 | 0.042 |
| In-segment | 2.49 ± 0.41 | 2.43 ± 0.40 | 2.55 ± 0.41 | 0.113 |
| Diameter stenosis, mm | ||||
| In-stent | 12.5 ± 5.87 | 12.9 ± 5.90 | 12.0 ± 5.84 | 0.326 |
| In-segment | 12.6 ± 7.12 | 13.3 ± 7.48 | 11.8 ± 6.70 | 0.215 |
| Acute gain, mm | ||||
| In-stent | 1.66 ± 0.43 | 1.56 ± 0.45 | 1.76 ± 0.39 | 0.010 |
| In-segment | 1.60 ± 0.46 | 1.52 ± 0.46 | 1.70 ± 0.45 | 0.033 |
| Follow-up at 9 mon | ||||
| Minimal luminal diameter, mm | ||||
| In-stent | 2.12 ± 0.61 | 1.93 ± 0.63 | 2.32 ± 0.53 | < 0.001 |
| In-segment | 2.10 ± 0.63 | 1.93 ± 0.59 | 2.34 ± 0.47 | < 0.001 |
| Diameter stenosis, mm | ||||
| In-stent | 24.5 ± 17.1 | 30.6 ± 17.8 | 18.2 ± 13.9 | < 0.001 |
| In-segment | 24.3 ± 17.7 | 29.5 ± 16.1 | 16.5 ± 10.6 | < 0.001 |
| Late luminal loss, mm | ||||
| In-stent | 0.41 ± 0.47 | 0.54 ± 0.48 | 0.28 ± 0.43 | 0.001 |
| In-segment | 0.36 ± 0.47 | 0.50 ± 0.46 | 0.21 ± 0.44 | < 0.001 |
| Binary restenosis | ||||
| In-stent | 10 (6.8) | 8 (10.8) | 2 (2.8) | 0.098 |
| In-segment | 11 (7.5) | 9 (12.2) | 2 (2.8) | 0.056 |
Values are mean ± SD or number (%).
QCA = quantitative coronary angiography, DEB = drug-eluting balloon, BMS = bare metal stent, ZES = zotarolimus-eluting stent, SD = standard deviation.