Angiographic features | Total limbs (n = 143) | 70% or more re-stenosis or occlusion (n = 29) | Free of 70% re-stenosis or occlusion (n = 114) | p | Relative risk (95% confidence interval) |
Flush SFA atscl. Disease | n = 95 (66%) | n = 19 (65%) | n = 76 (66%) | 1,000 | 0.960 (0.4850 - 1.900) |
Profunda Femoris ostial disease | n = 91 (63%) | n = 18 (62%) | n = 73 (64%) | 0.8325 | 0.9351 (0.4792 - 1.824) |
Long CTO [18] > 15 cm | n = 94 (65%) | n = 24 (82%) | n = 70 (61%) | 0.0470 | 2.502 (1.018 - 6.152) |
Intermediate CTO [18] 5 - 15 cm | n = 39 (27%) | n = 8 (27%) | n = 31 (27%) | 1,000 | 1.016 (0.4912 - 2.101) |
Focal Calcifications [18] | n = 88 (62%) | n = 18 (62%) | n = 70 (61%) | 1,000 | 1.023 (0.5232 - 1.999) |
Mild+Moderate Calcifications [18] | n = 37 (26%) | n = 8 (27%) | n = 29 (25%) | 0.8152 | 1.091 (0.5294 - 2.250) |
Severe Calcifications [18] | n = 18 (12%) | n = 14 (48%) | n = 4 (4%) | 0.0001 | 6.481 (3.795 - 11.07) |
Tibial runoff: 3 | n = 50 (35%) | n = 9 (31%) | n = 41 (36%) | 0.6690 | 0.8370 (0.4124 - 1.699) |
runoff: 2 | n = 70 (49%) | n = 10 (34%) | n = 60 (53%) | 0.0977 | 0.5489 (0.2747 - 1.097) |
runoff: 1 | n = 21 (14%) | n = 16 (55%) | n = 5 (4%) | 0.0001 | 7.150 (4.056 - 12.60) |
runoff: 0 | n = 2 (2%) | n = 2 (7%) | n = 0 | 0.0400 | 5.222 (3.720 - 7.331) |
Main CTO Segment: SFA Proximal | n = 19 (13%) | n = 5 (17%) | n = 14 (12%) | 0.5407 | 1.360 (0.5905 - 3.131) |
SFA Mid | n = 42 (29%) | n = 10 (34%) | n = 32 (28%) | 0.5010 | 1.266 (0.6437 - 2.488) |
SFA + Popliteal extension | n = 57 (40%) | n = 19 (65%) | n = 38 (33%) | 0.0826 | 2.867 (1.440 - 5.709) |
Popliteal Segm. 1 (P1) | n = 8 (6%) | n = 3 (10%) | n = 5 (4%) | 0.2045 | 1.947 (0.7461 - 5.081) |
Popliteal Segm. 2 (P2) | n = 12 (8%) | n = 4 (14%) | n = 8 (7%) | 0.2633 | 1.966 (0.6355 - 6.079) |
Popliteal Segm. 3 (P3) | n = 5 (4%) | n = 2 (7%) | n = 3 (2%) | 0.2670 | 2.621 (0.4588 - 14.97) |
TASC II: “B” lesions | n = 25 (17%) | n = 9 (31%) | n = 16 (14%) | 0.0517 | 2.124 (1.100 - 4.101) |
TASC II: “C” lesions | n = 77 (54%) | n = 21 (72%) | n = 56 (49%) | 0.0360 | 2.250 (1.068 - 4.740) |
TASC II: “D” lesions | n = 41 (29%) | n = 13 (44%) | n = 28 (24%) | 0.0394 | 2.021 (1.070 - 3.818) |