Table 2.
Baseline Lesion Characteristics.a
| Characteristics | RC 2-3: Claudicants (214 patients, 251 lesions) | RC 4-5: CLTI (233 patients, 289 lesions) | RC 6: CLTI (56 patients, 77 lesions) | p |
|---|---|---|---|---|
| Lesion location ATK or BTK | <0.001 | |||
| ATK only | 111/251 (44.2) | 71/289 (24.6) | 19/77 (24.7) | <0.001 |
| ATK and BTK | 32/251 (12.7) | 44/289 (15.2) | 6/77 (7.8) | 0.225 |
| BTK only | 108/251 (43.0) | 174/289 (60.2) | 52/77 (67.5) | <0.001 |
| Lesion location | <0.001 | |||
| SFA only | 30/251 (12.0) | 5/289 (1.7) | 2/77 (2.6) | <0.001 |
| SFA to popliteal | 35/251 (13.9) | 31/289 (10.7) | 8/77 (10.4) | 0.489 |
| Popliteal only | 46/251 (18.3) | 35/289 (12.1) | 9/77 (11.7) | 0.106 |
| SFA to BTK | 0/0 | 12/289 (4.2) | 1/77 (1.3) | 0.001 |
| Popliteal to BTK | 32/251 (12.7) | 32/289 (11.1) | 5/77 (6.5) | 0.315 |
| Lesion length, mm | 78.7±73.7 (n=240) | 131.4±119.0 (n=273) | 95.2±83.9 (n=73) | <0.001 |
| <40 | 94/240 (39.2) | 67/273 (24.5) | 25/73 (34.2) | 0.002 |
| 40–99 | 85/240 (35.4) | 80/273 (29.3) | 15/73 (20.5) | 0.047 |
| ≥100 | 61/240 (25.4) | 126/273 (46.2) | 33/73 (45.2) | <0.001 |
| Distal RVD, mm | 3.7±1.2 (n=243) | 3.2±1.2 (n=277) | 2.9±0.9 (n=74) | <0.001 |
| MLD, mm | 0.8±0.8 (n=245) | 0.7±0.9 (n=279) | 0.6±0.6 (n=76) | 0.019 |
| Stenosis, % | 77.9±19.4 (n=245) | 80.7±20.3 (n=280) | 81.6±17.9 (n=76) | 0.187 |
| Chronic total occlusion | 55/245 (22.4) | 100/280 (35.7) | 26/76 (34.2) | 0.004 |
| TASC type | <0.001 | |||
| A | 169/246 (68.7) | 141/278 (50.7) | 39/73 (53.4) | <0.001 |
| B | 38/246 (15.4) | 41/278 (14.7) | 21/73 (28.8) | 0.02 |
| C | 26/246 (10.6) | 61/278 (21.9) | 8/73 (11.0) | 0.001 |
| D | 13/246 (5.3) | 35/278 (12.6) | 5/73 (6.8) | 0.012 |
| Predominantly calcified plaque | 168/232 (72.4) | 176/261 (67.4) | 46/72 (63.9) | 0.286 |
| PARC stenosis | 0.043 | |||
| Mild | 23/245 (9.4) | 21/280 (7.5) | 4/76 (5.3) | 0.506 |
| Moderate | 56/245 (22.9) | 56/280 (20.0) | 18/76 (23.7) | 0.634 |
| Severe | 111/245 (45.3) | 103/280 (36.8) | 28/76 (36.8) | 0.117 |
| Occluded | 55/245 (22.4) | 100/280 (35.7) | 26/76 (34.2) | 0.002 |
| PARC concentric calcification | 0.069 | |||
| Focal | 17/220 (7.7) | 19/244 (7.8) | 2/67 (3.0) | 0.4 |
| Mild | 47/220 (21.4) | 28/244 (11.5) | 6/67 (9.0) | 0.005 |
| Moderate | 35/220 (15.9) | 42/244 (17.2) | 15/67 (22.4) | 0.45 |
| Severe | 57/220 (25.9) | 70/244 (28.7) | 18/67 (26.9) | 0.79 |
| Inflow vessel disease (>50% stenosis) | 83/214 (38.8) | 70/233 (30.0) | 37/56 (66.1) | <0.001 |
Abbreviations: ATK, above the knee; BTK, below the knee; MLD, minimum lumen diameter; PARC, Peripheral Academic Research Consortium; RC, Rutherford category; RVD, reference vessel diameter; SFA, superficial femoral artery; TASC, TransAtlantic Inter-Society Consensus.
a
Continuous data are presented as the mean ± standard deviation (sample size if different from the group number); categorical data are given as the number/sample (percentage). Sample sizes may differ from the group number owing to missing data.