Results of optical coherence tomography analysis
| ZES (n=24) | EES (n=22) | P value | |
| Time to follow-up (days) | 189 (184–201) | 190 (186–199) | 0.1039 |
| Total number of struts (n) | 6744 | 4787 | 0.1177 |
| Uncovered struts (n (%)) | 84 (1.2%) | 114 (2.4%) | 0.3090 |
| Malapposed struts (n (%)) | 171 (2.5%) | 188 (3.9%) | 0.2506 |
| Mean neointimal hyperplasia (μm) | 86.07±52.89 | 82.17±54.09 | 0.7787 |
| Total number of cross-sections (n) | 582 | 504 | 0.6173 |
| Mean measured stent length (mm) | 22.97±9.48 | 21.77±8.27 | 0.6514 |
| Mean luminal area (mm2) | 5.87±2.51 | 5.59±1.89 | 0.6725 |
| Mean stented area (mm2) | 6.67±2.52 | 6.37±1.88 | 0.6460 |
| Mean ISR (%) | 13.51±9.40 | 13.03±7.27 | 0.8468 |
P value calculated using Mann-Whitney U test.
Plus-minus values are mean±SD.
EES, everolimus-eluting stent; ISR, in-stent restenosis; n, number; OCT, optical coherence tomography; ZES, zotarolimus-eluting stent.