What are the criteria for observation instead of revascularization in 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

Conversely, physicians can choose observation instead of revascularization (serial control every 6 mo with duplex scanning, accurate correction of dyslipidemia, use of drugs that block platelet aggregation) when the patient meets the following criteria:

  • Stenosis is 50-80%, and scintigraphy findings are negative

  • The degree of stenosis is less than 50%


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