Table 3 Procedural characteristics.
Variable | All (n = 245) | Occlusion group (n = 21) | Non-occlusion group (n = 224) | P-value |
|---|---|---|---|---|
fTRA, n (%)a | 167 (68.2) | 10 (47.6) | 157 (70.1) | 0.035 |
TFA, n (%) | 78 (31.8) | 11 (52.4) | 67 (29.9) | |
Bilateral angiography, n (%) | 66 (26.9) | 11 (52.4) | 55 (24.6) | 0.006 |
Dual lumen microcatheter, n (%) | 18 (7.3) | 3 (14.3) | 15 (6.7) | 0.191 |
Bifurcation strategy | ||||
No protection in the SB | 158 (64.5) | 18 (85.7) | 140 (62.5) | 0.034 |
Jailed wire in the SB | 44 (18.0) | 1 (4.8) | 43 (19.2) | 0.137 |
SB pre-dilation before MV stenting | 31 (12.7) | 2 (9.5) | 29 (28.3) | 1.000 |
Two-stent technique | 12 (4.9) | 0 (0) | 12 (5.4) | 0.607 |
Protection with a guidewire in the SB | 87 (35.5%) | 3 (14.3) | 84 (37.5) | 0.034 |
Bifurcation angle, degrees | ||||
Angle (Prox-Dist)b | 130.0 ± 27.2 | 129.3 ± 25.2 | 130.0 ± 27.4 | 0.715 |
Angle (Dist-Side)c | 64.1 ± 25.0 | 62.8 ± 23.4 | 64.27 ± 25.2 | 0.805 |
Angle (Prox-Side)d | 153.1 ± 20.6 | 150.7 ± 19.3 | 153.3 ± 20.7 | 0.338 |
CTO approach | ||||
Antegrade | 222 (90.6) | 14 (66.7) | 203 (92.9) | 0.001 |
AWE | 200 (81.6) | 11 (52.4) | 189 (84.4) | 0.001 |
ADR | 22 (9.0) | 3 (14.3) | 19 (8.5) | 0.415 |
Retrograde | 23 (9.4) | 7 (33.3) | 16 (7.1) | 0.001 |
RWE | 10 (4.1) | 3 (14.3) | 7 (3.1) | 0.044 |
RDR | 13 (5.3) | 4 (19.0) | 9 (4.0) | 0.017 |
Occurrence of branch occlusion | ||||
Post wire cross occlusion | 1 (4.8%) | |||
Post balloon inflation | 5 (23.8%) | |||
Post-stenting | 15 (71.4%) | |||
