Table 2 Baseline lesion and procedure characteristics
Before matching | Matched population | |||||
|---|---|---|---|---|---|---|
Repeat DCB | De novo DCB | p-value | Repeat DCB | De novo DCB | p-value | |
n = 64 | n = 673 | n = 49 | n = 49 | |||
Right leg | 50% (32) | 49% (333) | 0.937 | 47% (23) | 49% (24) | 0.842 |
Chronic limb-threatening ischemia | 47% (29) | 37% (245) | 0.095 | 48% (23) | 45% (22) | 0.766 |
Rutherford classification | 3.6 ± 0.9 | 3.5 ± 1.1 | 0.349 | 3.6 ± 1.0 | 3.7 ± 1.3 | 0.598 |
Preoperative ankle brachial index | 0.71 ± 0.29 | 0.65 ± 0.30 | 0.115 | 0.72 ± 0.25 | 0.66 ± 0.27 | 0.256 |
Postoperative ankle brachial index | 0.93 ± 0.17 | 0.94 ± 0.18 | 0.548 | 0.93 ± 0.19 | 0.93 ± 0.13 | 0.924 |
Distal reference vessel diameter (mm) | 4.2 ± 1.0 | 4.6 ± 1.1 | 0.013 | 4.1 ± 1.0 | 4.1 ± 1.0 | 0.957 |
Lesion length (mm) | 174.9 ± 99.4 | 187.3 ± 109.5 | 0.387 | 170.3 ± 101.2 | 183.9 ± 124.4 | 0.556 |
Preoperative stenosis (%) | 90.7 ± 9.7 | 92.2 ± 9.1 | 0.214 | 91.6 ± 9.5 | 92.0 ± 9.6 | 0.858 |
Postoperative stenosis (%) | 5.9 ± 12.4 | 8.6 ± 14.3 | 0.102 | 6.6 ± 13.3 | 4.1 ± 9.3 | 0.274 |
Chronic total occlusion | 29% (18) | 28% (186) | 0.874 | 31% (15) | 29% (14) | 0.773 |
Occlusion length (mm) | 35.4 ± 72.4 | 41.2 ± 83.3 | 0.605 | 34.0 ± 70.2 | 37.6 ± 81.2 | 0.824 |
Lesion morphology type | ||||||
Focal/Tandem/Diffuse | 10%/12%/78% | 16%/9%/74% | 0.415 | 12%/17%/71% | 28%/12%/60% | 0.433 |
Stenosis (Focal/Tandem/Diffuse) | 71% (10%/7%/54%) | 72% (15%/9%/48%) | 0.874 | 69% (12%/8%/49%) | 71% (21%/8%/42%) | 0.773 |
Occlusion (Focal/Tandem/Diffuse) | 29% (0%/5%/24%) | 28% (1%/3%/24%) | 0.874 | 31% (0%/9%/22%) | 29% (7%/4%/18%) | 0.773 |
TASC II A/B/C/D | 17%/21%/52%/9% | 20%/20%/50%/9% | 0.968 | 19%/19%/54%/8% | 27%/17%/46%/10% | 0.755 |
Calcification graded according to the PACSS grade 1/2/3/4 | 3%/5%/23%/43% | 11%/4%/17%/40% | 0.214 | 6%/9%/29%/57% | 15%/4%/22%/59% | 0.566 |
Below-the-knee poor-runoff ≤1 | 47% (29) | 37% (245) | 0.137 | 45% (22) | 31% (15) | 0.166 |
Drug-coating balloon number | 1.4 ± 0.5 | 1.4 ± 0.5 | 0.907 | 1.4 ± 0.5 | 1.3 ± 0.5 | 0.679 |
diameter (mm) | 5.6 ± 0.6 | 5.5 ± 0.6 | 0.295 | 5.6 ± 0.6 | 5.3 ± 0.7 | 0.093 |
length (mm) | 190.3 ± 91.9 | 206.2 ± 114.1 | 0.203 | 186.9 ± 94.9 | 191.4 ± 118.2 | 0.836 |
Scoring balloon use | 57% (32) | 42% (271) | 0.025 | 63% (31) | 61% (30) | 0.835 |
Intravascular ultrasound use | 30% (19) | 24% (164) | 0.357 | 31% (15) | 18% (9) | 0.159 |