Table 4.
Follow-up FD-OCT analysis of acute malapposed struts
| Parameters | Total (n = 30) | BP-EES (n = 15) | DP-EES (n = 15) | P-value |
|---|---|---|---|---|
| Follow-up duration, days | 351 (284–407) | 357 (329–396) | 349 (267–417) | 0.917 |
| Revascularization | 1 (3.3) | 0 (0) | 1 (6.7) | 1.000 |
| Analyzable struts | 361 (90.0) | 222 (91.4) | 139 (88.0) | – |
| Struts without analyzable FD-OCT images | 31 (7.7) | 21 (8.6) | 10 (6.3) | – |
| Struts in restenosed cross-section | 9 (2.2) | 0 (0) | 9 (5.7) | – |
| Resolved ASM / analyzable struts | 308 (85.3) | 204 (91.9) | 104 (74.8) | < 0.001 |
| Residual S–V distance of struts without resolution of ASM, µm | 311 (149–420) | 295 (205–450) | 330 (185–397) | 0.425 |
| Neointimal coverage/ analyzable struts | 311 (86.2) | 205 (92.3) | 106 (76.3) | < 0.001 |
| Neointimal thickness, µm | 64 (36–132) | 58 (32–130) | 75 (44–150) | 0.028 |
| Adequate vascular healing/analyzable struts | 301 (83.4) | 199 (89.6) | 102 (73.4) | < 0.001 |
| Tissue growth, µm | 364 (277–490) | 393 (291–517) | 330 (242–468) | 0.003 |
Data presented as n (%), interquartile range (25%–75%)
ASM acute stent malposition, S–V distance stent–vessel lumen distance