Table 2 Baseline Lesion Characteristics
Variables | Overall population | Matched population | ||||
|---|---|---|---|---|---|---|
PCB (n = 32) | Non-PCB (n = 74) | p | PCB (n = 25) | Non-PCB (n = 25) | p | |
Target lesion | ||||||
Superficial femoral artery | 32 (100.0) | 74 (100.0) | 1.000 | 25 (100.0) | 25 (100.0) | 1.000 |
Involving popliteal artery | 4 (12.5) | 19 (25.7) | 0.199 | 4 (16.0) | 7 (28.0) | 0.496 |
Reference vessel diameter, % | 5.65 ± 0.40 | 5.54 ± 0.47 | 0.282 | 5.61 ± 0.37 | 5.50 ± 0.49 | 0.367 |
Lesion length of native disease, % | 223.4 ± 68.4 | 200.9 ± 81.4 | 0.173 | 222.0 ± 73.5 | 209.6 ± 78.4 | 0.567 |
Total occlusion of native disease, % | 27 (84.4) | 55 (74.3) | 0.318 | 20 (80.0) | 21 (84.0) | 1.000 |
TASC II classification of native disease | 0.177 | 0.217 | ||||
A/B | 4 (12.5) | 21 (18.4) | 3 (12.0) | 6 (24.0) | ||
C | 6 (18.8) | 15 (20.3) | 5 (20.0) | 5 (20.0) | ||
D | 22 (68.7) | 38 (51.3) | 17 (68.0) | 14 (56.0) | ||
PACSS classification of native disease | 0.937 | 0.702 | ||||
0–3 | 27 (84.4) | 64 (86.5) | 20 (80.0) | 22 (88.0) | ||
4 | 5 (15.6) | 10 (13.5) | 5 (20.0) | 3 (12.0) | ||
Types of ISR-related stents | 1.000 | 1.000 | ||||
Bare-nitinol stent | 30 (93.7) | 69 (93.2) | 24 (96.0) | 25 (100.0) | ||
SMART™ | 10 (31.3) | 21 (28.4) | 7 (28.0) | 9 (36.0) | ||
Luminexx™ | 15 (46.9) | 33 (44.6) | 14 (56.0) | 13 (52.0) | ||
Zilver 518™ | 1 (3.1) | 3 (4.1) | 1 (4.0) | 0 (0.0) | ||
Misago™ | 4 (12.5) | 11 (14.9) | 2 (8.0) | 2 (8.0) | ||
LIFE STENT™ | 0 (0.0) | 1 (1.4) | 0 (0.0) | 1 (4.0) | ||
Drug-coated stent (Zilver PTX™) | 2 (6.3) | 5 (6.8) | 1 (4.0) | 0 (0.0) | ||
ISR pattern* | < 0.001 | 0.581 | ||||
Focal (≤50 mm) | 2 (6.3) | 25 (33.8) | 2 (8.0) | 2 (8.0) | ||
Diffuse (> 50 mm) | 24 (75.0) | 22 (29.7) | 19 (76.0) | 16 (64.0) | ||
Occlusion | 6 (18.7) | 27 (36.5) | 4 (16.0) | 7 (28.0) | ||
ISR length* | 120.3 ± 59.3 | 131.1 ± 95.6 | 0.555 | 126.0 ± 57.4 | 134.4 ± 71.4 | 0.649 |
Distal run-off vessel | 0.378 | 1.000 | ||||
2/3 | 23 (71.9) | 45 (60.8) | 17 (68.0) | 18 (72.0) | ||
0/1 | 9 (28.1) | 29 (39.2) | 8 (32.0) | 7 (28.0) | ||
Stent fracture classification | 0.582 | 1.000 | ||||
0/1/2 | 30 (93.7) | 72 (97.3) | 22 (92.0) | 24 (96.0) | ||
≥ 3 | 2 (6.3) | 2 (2.7) | 2 (8.0) | 1 (4.0) | ||