Table 2.
Baseline Lesion and Procedural Characteristics
| Simple Crossover (n = 1,685) | SB Opening (n = 509) | p Value | |
|---|---|---|---|
| Location of bifurcated vessel | <0.001 | ||
| LM | 489 (29.0) | 193 (37.9) | |
| LAD | 796 (47.2) | 241 (47.3) | |
| LCx | 276 (16.4) | 50 (9.8) | |
| RCA | 124 (7.4) | 25 (4.9) | |
| Medina classification | <0.001 | ||
| 0.0.1 | 14 (0.8) | 31 (6.1) | |
| 0.1.0 | 468 (27.8) | 90 (17.7) | |
| 0.1.1 | 113 (6.7) | 42 (8.3) | |
| 1.0.0 | 263 (15.6) | 26 (5.1) | |
| 1.0.1 | 97 (5.8) | 38 (7.5) | |
| 1.1.0 | 340 (20.2) | 65 (12.8) | |
| 1.1.1 | 390 (23.1) | 217 (42.6) | |
| True bifurcation (SB disease) | 600 (35.6) | 297 (58.3) | <0.001 |
| DES type | 0.039 | ||
| EES | 799 (47.4) | 236 (46.4) | |
| ZES | 459 (27.2) | 151 (29.7) | |
| BES | 339 (20.1) | 110 (21.6) | |
| Others | 88 (5.2) | 12 (2.4) | |
| Maximal diameter of MV stents, mm | 3.34 ± 0.62 | 3.42 ± 0.62 | 0.014 |
| Cumulative length of MV stents, mm | 28.87 ± 13.79 | 27.36 ± 12.52 | 0.022 |
| Final kissing balloon | 0 (0.0) | 391 (76.8) | <0.001 |
| Proximal optimization technique | 485 (28.8) | 146 (28.7) | 0.998 |
| Use of intravascular ultrasound | 601 (35.7) | 215 (42.2) | 0.008 |
| QCA | |||
| Pre-procedure | |||
| Reference diameter of PV, mm | 3.56 ± 0.62 | 3.63 ± 0.61 | 0.116 |
| Reference diameter of MV, mm | 3.22 ± 0.48 | 3.26 ± 0.46 | 0.106 |
| Reference diameter of SB, mm | 2.57 ± 0.44 | 2.63 ± 0.43 | 0.013 |
| MLD of PV, mm | 1.79 ± 1.18 | 1.73 ± 1.04 | 0.306 |
| MLD of MV, mm | 0.81 ± 0.48 | 0.86 ± 0.43 | 0.022 |
| MLD of SB, mm | 1.65 ± 0.82 | 1.44 ± 0.81 | <0.001 |
| Diameter stenosis of PV, % | 50.60 ± 29.69 | 52.52 ± 26.71 | 0.166 |
| Diameter stenosis of MV, % | 74.83 ± 14.40 | 73.51 ± 12.53 | 0.046 |
| Diameter stenosis of SB, % | 37.49 ± 26.06 | 46.61 ± 25.90 | <0.001 |
| Lesion length of MV, mm | 19.40 ± 10.38 | 16.82 ± 8.94 | <0.001 |
| Lesion length of SB, mm | 3.80 ± 5.94 | 5.20 ± 5.90 | <0.001 |
| Final | |||
| MLD of PV, mm | 3.59 ± 0.60 | 3.67 ± 0.58 | 0.007 |
| MLD of MV, mm | 2.77 ± 0.49 | 2.78 ± 0.42 | 0.758 |
| MLD of SB, mm | 1.52 ± 0.81 | 1.69 ± 0.70 | <0.001 |
| Diameter stenosis of PV, % | 11.26 ± 9.02 | 10.16 ± 9.00 | 0.015 |
| Diameter stenosis of MV, % | 15.26 ± 10.36 | 15.86 ± 9.22 | 0.213 |
| Diameter stenosis of SB, % | 42.56 ± 26.23 | 37.21 ± 21.84 | <0.001 |
Values are n (%) or mean ± SD. The number, length, and diameter of the stents were all calculated per lesion.