Vascular Mod 10

Question 1

Successful graft velocity (mid graft)

Answer 1

> 40-45 cm/sec

Question 2

Graft with low PSV cuases

Answer 2

1) flow limiting stenosis
2) large graft diameter > 6 mm
3) poor runoff

Question 3

Average graft velocity when to popliteal, tibial, pedal

Answer 3

Popliteal/tibia 90 cm/s

Pedal 64 cm/s

Question 4

Vein graft % stenosis criteria

Answer 4

0-19% = VR < 2.0; pSV < 150
20-49% = VR > 2, PSV < 150
50-75% = VR > 2.5; PSV > 150
> 75% = VR > 3.5; EDV > 100