Angioplasty Renal Artery Stenosis

[Pontios]

I am 59 years old, CKD stage 4, eGFR 20, single kidney with renal artery stenosis and resistant hypertension. I had an angioplasty in 1983 which succeeded in lowering blood pressure somewhat and a further angioplasty in 1991 where they believed it did not change much. Thinking since then has been that there is little difference in blood pressure outcome whether angioplasty has been done or purely medication with blood pressure tablets. More recently again this is being questioned. Now I would be very keen to regain any possible kidney function if that were possible with a further angioplasty. Has anyone any experience either positive or negative with angioplasty effect on kidney function. Especially after such a long period. When I started on this journey in 1983 they believed that they might have to repeat the angioplasty every five or ten years. I am aware of the risks of using contrast medium at stage 4 but apparently carbon dioxide can also be used instead as a contrast medium.

[Marvin8]

I'd be curious to know the answer to these questions as well since I may be undergoing an angiogram in a few weeks to check for blockage(s) implied from a stress test. I just looked up CO2 contrast for angiograms and came up with the following. I'm not so sure it's a "thing" yet, especially for arterial angiograms:

ncbi.nlm.nih.gov/books/NBK5....

[Pontios in reply to Marvin8]

Marvin8, thank you very much for that. It does seem to be very early days on using CO2 contrast. I hope all goes well with your upcoming angiogram

[Marvin8 in reply to Pontios]

Thanks. And you with yours if you end up getting one.