What are the outcomes of angioplasty and surgical bypass for the treatment of renal artery stenosis (RAS)?

Updated: Nov 02, 2020
  • Author: Bruce S Spinowitz, MD, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

In 1987, Ziegelbaum et al compared the outcomes of angioplasty and surgical bypass. [35] The researchers studied 70 elderly patients with atheromatous disease and found that angioplasty caused major complications, including two deaths. Kidney function improved (ie, >20% decrease in serum creatinine level) in 57.5% of surgery patients but in only 15.8% of angioplasty patients. After 48 months of follow-up, the unassisted patency rate was only 69% in the angioplasty group compared with 100% in the surgical group.


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