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Related Experiment Videos

Renal revascularization: indications and results.

M A Roubidoux1, N R Dunnick, M Knelson

  • 1Department of Veterans Affairs, Durham, North Carolina.

Urologic Radiology
|January 1, 1992
PubMed
Summary

Identifying patients with renovascular hypertension is key. Clinical selection allows for screening of renal artery stenosis using noninvasive or intraarterial methods, enabling timely intervention.

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Area of Science:

  • Nephrology
  • Cardiology
  • Radiology

Background:

  • Renovascular hypertension, though rare, can be identified in specific patient groups with a 15% prevalence.
  • Clinical assessment is crucial for selecting patients who may benefit from further screening.

Purpose of the Study:

  • To outline appropriate screening modalities for detecting significant renal artery stenosis in selected patients.
  • To discuss the advantages of various diagnostic and interventional procedures for renovascular hypertension.

Main Methods:

  • Noninvasive screening options include captopril-enhanced renal scintigraphy, magnetic resonance angiography, and intravenous digital subtraction angiography.
  • Intraarterial digital subtraction angiography and conventional arteriography offer combined diagnostic and interventional capabilities.
  • Clinical and arteriographic studies guide patient selection for potential revascularization.

Main Results:

  • Selected patients have a significantly higher prevalence of renovascular hypertension.
  • Both noninvasive and intraarterial imaging techniques can reliably detect renal artery stenosis.
  • A substantial proportion of selected patients benefit from revascularization procedures.

Conclusions:

  • Clinical criteria effectively identify patients requiring screening for renal artery stenosis.
  • A range of imaging modalities are available for diagnosing renal artery stenosis.
  • Combined diagnostic and interventional procedures, like angioplasty during arteriography, can be performed efficiently for confirmed stenosis.

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