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Table 2 Baseline Lesion Characteristics

From: Long-term clinical effectiveness of a drug-coated balloon for in-stent restenosis in Femoropopliteal lesions

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)  
  1. Categorical variables are expressed as number and percentage. Continuous variables are indicated as mean ± SD
  2. ISR indicates in-stent restenosis, PACSS Proposed Peripheral Arterial Calcium Scoring System, PCB paclitaxel-coated balloon, TASC Trans-Atlantic Inter-Society Consensus
  3. *Variables included in the multivariable analysis to estimate propensity score