TASC GLASS WIFI

Question 1

TASC A AIOD

Answer 1

CIA: stenosis
EIA: <3cm stenosis

Question 2

TASC B AIOD

Answer 2

Ao: <3cm stenosis
CIA: occlusion (uni only)
EIA: 3-10cm stenosis or occlusion (uni and not CFA/IIA)

Question 3

TASC C AIOD

Answer 3

CIA: occlusion (bi)
EIA: 3-10cm stenosis (bi) occlusion involving CFA/IIA (uni)

Question 4

TASC D AIOD

Answer 4

Ao: occlusion
EIA: occlusion bilateral
-multilevel CIA, EIA, CFA disease/occlusion
-AAA
-diffuse AIOD

Question 5

GLASS AoI staging

Answer 5

ONE:
Ao: stenosis
CIA: stenosis
EIA: stenosis
-CTO of CIA or EIA only

TWO:

• CTO Ao
• CTO CIA + EIA -small < 6mm CIA/EIA
• AAA
• instent stenosis

MODIFIER A: CFA disease < 50% B: CFA disease > 50%

Question 6

GLASS infra-malleolar descriptor

Answer 6

Po = target past ankle, intact pedal arch

P1 = target artery cross into foot, no pedal arch

P2 = no target past ankle

Question 7

GLASS femoropopliteal disease

Answer 7

0: mild < 50%
1: SFA stenosis < 10; CTO < 5 not flush
2: SFA stenosis 10-20; CTO 5-10 not flush; popliteal stenosis < 2 not tibial
3: SFA stenosis > 20; CTO 10-20 not flush; any SFA flush; popliteal stenosis 2-5 not flush
4: SFA CTO > 20; popliteal stenosis > 5; any into tibial; any popliteal

CTO MODIFIER: significant calcium add 1 grade

Question 8

GLASS infrapopliteal

Answer 8

0: mild in TAP (target artery path)
1: tibial stenosis < 3
2: tibial stenosis 1/3 length; CTO < 3; not tibial origin or TPT
3: tibial stenosis 1/3-2/3; CTO < 1/3; tibial origin but not TPT
4: tibial stenosis > 2/3; CTO > 1/3; TPT CTO

MODIFIER: significant calcium add 1 grade

Question 9

WIFI criteria

Answer 9

Wound:

0: none
1: small no gangrene
2: deep with bone, joint, tendon, gangrene to toes
3: heel, extensive full thickness

I:
ABI: >0.8, 0.6, 0.4, <0.4
Ankle pressure: >100, 70, 50, <50
Toe pressure: >60, 40, 30, <30

Foot infection:

0: none
1: skin, subcu
2: deeper past subcu
3: systemic

Question 10

WIFI 1 year amputation

Answer 10

Question 11

WIFI benefit /need or revasc

Answer 11