Baseline characteristics and quantitative coronary angiography findings
| Baseline characteristics | ZES (n = 32) | SES (n = 36) | p Value |
| Age (years) | 59.7 (8.4) | 59.6 (8.4) | 0.95 |
| Male, n (%) | 25 (78.1) | 25 (69.4) | 0.42 |
| Acute coronary syndrome, n (%) | 17 (53.1) | 21 (58.3) | 0.67 |
| Hypertension, n (%) | 17 (53.1) | 15 (41.7) | 0.35 |
| Diabetes mellitus, n (%) | 12 (37.5) | 13 (36.1) | 0.91 |
| Hyperlipidaemia, n (%) | 18 (56.3) | 17 (47.2) | 0.46 |
| Smoking, n (%) | 8 (25.0) | 10 (27.8) | 0.50 |
| Chronic total occlusion, n (%) | 0 (0.0) | 1 (2.8) | 1.00 |
| Target vessel | 0.33 | ||
| LAD, n (%) | 15 (46.9) | 17 (47.2) | |
| LCX, n (%) | 4 (12.5) | 8 (25.0) | |
| RCA, n (%) | 13 (40.6) | 10 (27.8) | |
| Lesion type B2 or C, n (%) | 24 (75.0) | 28 (77.8) | 0.79 |
| Stent diameter (mm) | 3.1 (0.3) | 2.9 (0.3) | 0.004 |
| Stent length (mm) | 23.7 (5.9) | 24.1 (6.4) | 0.78 |
| Maximal pressure (atm) | 17.1 (2.4) | 17.2 (2.0) | 0.17 |
| Postintervention QCA data | |||
| Mean RVD (mm) | 2.9 (0.3) | 2.8 (0.4) | 0.32 |
| MLD (mm) | 2.8 (0.3) | 2.7 (0.4) | 0.04 |
| DS (%) | 2.0 (5.9) | 5.9 (7.0) | 0.02 |
| Acute gain (mm) | 2.1 (0.5) | 2.0 (0.5) | 0.33 |
| 9 Months’ follow-up QCA data | |||
| Mean RVD (mm) | 2.7 (0.3) | 2.7 (0.4) | 0.79 |
| MLD (mm) | 2.3 (0.4) | 2.5 (0.4) | 0.06 |
| DS (%) | 15.1 (8.2) | 8.6 (13.4) | 0.02 |
| Late loss (mm) | 0.5 (0.3) | 0.2 (0.5) | <0.001 |
Values are presented as mean (SD) unless stated otherwise.
DS, diameter stenosis; LAD, left anterior descending artery; LCX, left circumflex artery; MLD, minimal lesion diameter; QCA, quantitative coronary angiography; RCA, right coronary artery; RVD, reference vessel diameter; SES, sirolimus-eluting stent; ZES, zotarolimus-eluting stent.