May 25, 2015
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Q. why there is unequal BP between arms in aortic dissection?Is BP more on left or right and why?
 

SpartanWolverine

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Depends on the location of aortic dissection -- but the cause of interarm blood pressure differences is the subclavian on one side being compressed more than the other. If you think about a hematoma spreading within the intima-media space of the aorta, it can easily spread to a branch point and compress the artery coming off at that point.