Table IV.
Procedural characteristics
| Parameter | BiOSS group N (%) | LM subgroup n = 53 (%) | Non-LM subgroup n = 42 (%) |
|---|---|---|---|
| Successful implantation | 95 (100) | 53 (100) | 42 (100) |
| Main vessel predilatation | 76 (80.0) | 45 (84.9) | 31 (73.8) |
| Side branch predilatation | 25 (26.3) | 20 (37.7) | 5 (11.9)* |
| Both branches’ predilatation | 19 (20.0) | 17 (32.1) | 2 (4.8)* |
| Nominal stent diameter in main vessel [mm] | 3.89 ±0.45 | 4.17 ±0.36 | 3.78 ±0.35* |
| Nominal stent diameter in main branch [mm] | 3.18 ±0.42 | 3.42 ±0.35 | 3.01 ±0.23* |
| Nominal stent length [mm] | 19.51 ±3.29 | 19.94 ±3.16 | 18.78 ±3.43 |
| Side branch postdilatation | 37 (38.9) | 23 (43.4) | 14 (33.3) |
| POT | 51 (53.7) | 37 (69.8) | 14 (33.3)* |
| FKB | 29 (30.5) | 22 (41.5) | 7 (16.7)* |
| Additional stent in SB | 18 (18.9) | 15 (28.3) | 3 (7.1)* |
| Dissection requiring an additional stent in main vessel | 11 (11.6) | 7 (13.2) | 4 (9.5) |
| Fluoroscopy time [min] | 19.6 ±12.4 | 21.2 ±12.1 | 17.6 ±9.5 |
| Contrast volume [ml] | 197 ±66 | 211 ±75 | 180 ±43 |
| Vascular access femoral/radial | 6.3%/93.7% | 5.7%/94.3% | 7.1%/92.9% |
| Guiding catheter 6F/7F | 95.8%/5.3% | 90.6%/9.4% | 100%/0 |
LM – left main, POT – proximal optimization technique, FKB – final kissing balloon;
*
p < 0.05 between LM and non-LM groups.