We have a bit of 'disagreement' in regards to AVF stenosis criteria in my centre.
I have been taught to use ratio >3:1 to indicate a significant stenosis (ie >50% stenosis). I got the impression that I don't use the PSV to determine the degree of stenosis. However, 1 of colleagues mentioned that a functioning AVF should have a PSV of 300-400cm/sec. And anything >400cm/sec is a stenosis.
What do you guys think? And what are the AVF stenosis criteria do your clinics use?
THanks for your input.
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