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Ischemic nephropathy: diagnosis and treatment
1Department of Nephrology and Dialysis-Malpighi, Policlinico S. Orsola-Malpighi, Bologna, Italy.
Journal of Nephrology
|February 27, 1999
Summary
Diagnosing renal artery stenosis, a cause of kidney insufficiency, benefits from non-invasive duplex ultrasound. Captopril-enhanced scintigraphy aids treatment decisions for renovascular disease.
Area of Science:
- Nephrology
- Radiology
- Cardiology
Background:
- Ischemic nephropathy due to renal artery stenosis is an increasing cause of renal insufficiency.
- Effective non-invasive diagnostic tools and therapeutic strategies are crucial for managing renovascular disease.
Purpose of the Study:
- To review current non-invasive diagnostic tools for renal artery stenosis.
- To discuss therapeutic options, particularly percutaneous transluminal renal angioplasty (PTRA).
Main Methods:
- Duplex ultrasound scanning as a first-line non-invasive diagnostic test.
- Ancillary roles of magnetic resonance angiography and spiral CT angiography.
- Use of Captopril-enhanced (CE) scintigraphy to assess intrarenal renin-angiotensin system activation.
Main Results:
- Duplex ultrasound is a cost-effective initial diagnostic tool.
- CE scintigraphy identifies renin-angiotensin system activation, guiding revascularization decisions.
- Percutaneous transluminal renal angioplasty, especially with stenting for ostial stenoses, is a primary therapeutic approach.
Conclusions:
- Non-invasive imaging like duplex ultrasound is essential for diagnosing renal artery stenosis.
- CE scintigraphy provides valuable functional information for treatment planning.
- PTRA with stenting has become the standard treatment, reducing the need for surgery.