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)