The Trans-Atlantic Inter-Society developed a consensus (TASC) classification for atherosclerotic disease of the common femoral and popliteal arteries.
Parameters:
(1) unilateral vs bilateral
(2) length in cm
(3) number of lesions
(4) stenosis vs occlusion
(6) involvement of distal popliteal artery
(7) heavy calcification
|
Type |
Lesion |
|
1 |
single stenosis on left or right side, < 3 cm, in CFA or PA, not heavily calcified |
|
2 |
single stenosis 3-10 cm long without involvement of distal popliteal artery |
|
3 |
heavily calcified stenosis <= 3 cm in length |
|
4 |
multiple stenosis or occlusions, each < 3 cm long |
|
5 |
single or multiple lesions in the absence of continuous tibial runoff to improve inflow for distal surgical bypass |
|
6 |
single stenosis or occlusion > 5 cm in length |
|
7 |
multiple stenosis or occlusions, each 3-5 cm in length, with or without heavy calcification |
|
8 |
complete common femoral artery occlusions |
|
8 |
superficial femoral artery occlusions |
|
8 |
complete popliteal and proximal trifurcation occlusions |
where:
• CFA = common femoral artery, PA = popliteal artery
• While Type 1 in the paper refers to bilateral disease, the remainder do not. In the implementation I will only refer to unilateral disease.
• Type 6 and Type 2 could overlap for a single stenosis 6 to 10 cm in length.
|
Lesion Type |
TASC Group |
|
1 |
A |
|
2, 3, 4 or 5 |
B |
|
6 or, 7 |
C |
|
8 |
D |
Specialty: Cardiology
ICD-10: ,
