It is our lab’s policy never to perform an ABI on a patient that has a positive DVT. Some of you “old timers’ may remember that we used 40 mmHg pressure in order to compress the veins for outflow studies. In performing arterial pressures you exceed this pressures three fold. This would obviously induce changes which could in fact result in an emboli moving cephalad. Why would you bother when you can do an arterial duplex to obtain your answer along with a toe pressure.
Barbara Pizzo, BS. RVT
Manager, PVL, EEG and Cardiology Services
610 378 2802
From: UVM Flownet
[mailto:[log in to unmask]] On Behalf Of
Ruhland, Greg F.
Sent: Friday, May 07, 2010 9:52 AM
To: [log in to unmask]
Subject: TO ABI OR NOT TO ABI...
I always read the flow but I don't always participate, I feel the interested in what we might have to say about this subject.
My lab has co-medical directors, interventionalist and vascular surgeon. The question was brought up… do you perform an ABI on a patient positive for DVT. A fairly heated discussion followed from 3 surgeons and 1 interventionalist very firmly divided on the subject. For all the obvious reasons. Possible to cause P.E., the need to know of arterial complications. Would an ankle pressure really be enough to cause P.E., Blah blah, blah. We all know there are good arguments for both schools of thought.
What do you think, and does your lab have a set protocol? ( I think it should be different depending on each particular case, extent of DVT, other complications…ect.
Just wondering if it will spark the same intensity of debate for one side or
Greg Ruhland RVT
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