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Perhaps an anomaly of the vasculature such as a persistent median artery
<https://radsource.us/persistent-median-artery/>?
[image: image.png]

On Fri, Nov 13, 2020 at 12:37 PM Brian Wirick <
[log in to unmask]> wrote:

> Had an interesting case this week:
> 43 year old for CABG needs radial harvesting.
>
> Arteries look normal. Allen's test is where things get confusing for us:
>
> right #1: flatline with radial compression. Decrease in pulsatility with
> ulnar compression
> right #2-5: flatline with radial compression. Flatline with ulnar
> compression.
>
>
> left digits: all flatline with radial compression. 2 and 3 show decrease
> in pulsatility with ulnar compression and 1,4,5 are normal with ulnar
> compression.
>
> Can anyone explain the results of the right hand allen's test?
>
> Thank you in advance,
> Brian
>
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       Steve Knight

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