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Conditions and Diseases > Kidney Conditions Forum > Renal arterial stenosis affecting blood pressure
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Q: Renal arterial stenosis affecting blood pressure
asked by: DoctorQuestion on December 13th, 2008
If the bp meds are not lowering the pressure, as they always have in the past, isn't it logical to believe that the stenosis is causing the problem. My heart doctor will not allow me to continue with this high blood pressure as obviously it is bad for my heart disease. Should he discuss this with the nephrologist? Please give me an opinion. I feel if the contrast in the MRI shut down my kidneys I can continue to live on dialysis, but if I have another heart attack, I may not survive that. Not many good choices...

Thank you for any imput you may offer.


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Dr. Goce Aleksovski , MD
replied on December 18th, 2008
Kidney Conditions Answer A5096


List of other diseases, conditions, or injuries and their treatment: type 2 diabetic, 4 way bypass 2005, aortec anursysism repair 2005, controlled high blood pressure
Have a diagnosis for the current condition: yes
Diagnosis that has been suggested: Nephrologist says Stage 4 of Kidney Failure
Current medical status: creatinine 2.8, bun 60, extreme fatigue, itching. Recently blood pressure is remaining high, current bp meds do not change it. Blood pressure is around 175/80 most of the time, does not change
Current medical treatment: Nuclear med scan radiologist report stated right kidney unremarkable, left appears to have a renal stenosis. Nephrologist wants an MRI scan with contrast, only is very concerned it will ruin any remaining kidney function. Wants to wait until creatinine/bun is higher, then attempt MRI in the event kidneys are ruined, dialysis would be indicated anyway.



A stenosis of the renal artery can decrease the blood flow in the affected kidney thus simulating false low blood pressure and triggering the renal mechanisms which then increase the blood pressure.


Blood pressure around 175/80 is high to be treated with medications, but is not high enough to cause damage to blood vessels (rupture of aneurysms). A damage can easily occur if the blood pressure increases suddenly which is not improbable. In your situation, the nephrologist and cardiologist should consult each other about your condition and try to find the best possible solution.




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