Carol, I noticed that you measured the brachial diastolic pressure. Did
you measure the brachial systolic pressure with a doppler?
On Fri, 31 Jan 1997 [log in to unmask] wrote:
> In less than 2 months a patient has a difference in his ABI of >.2, waveforms
> look the same from both exams, has anyone else run into this scenerio?
> on 10-22-96 BP's R = 146/60 L= Fistula
> amplitude 13 mm 25 mm
> ankle Pressures 115 134
> ABI 0.79 0.92
> on 1-9-97 BP's R = 190/80 L = Fistula
> amplitude 12 mm 26 mm
> ankle Pressures 112 128
> ABI 0.59 0.67
> I explained that the difference in the index is due to the increase of
> brachial artery pressure by 44mmHg for the January exam. It was explained to
> me that this is not the reason, as the arm and the leg blood pressures are
> relational and does not account for this. (This was by the tech and one of
> our MD's)
> So, now I am utterly confused..........................if the formula has an
> increase in the brachial artery this will decrease the ABI if the ankle
> pressure stays the same. I was just going on simple math. How else would
> you explain this???????????????
> Carol Gallupe RVT RCT
> Vascular & Thoracic Assoc.
> Bangor ME
Steven J. Knight BSc. RVT
Vascular Diagnostic Laboratory
Surgery Health Care Service
Fletcher Allen Health Care
1 South Prospect Street
Burlington, VT 05401
In alliance with the University of Vermont