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Updated: Dec 29, 2025

A Mouse Model to Evaluate the Long-Term Structural and Functional Outcomes after the Reversal of Prolonged Unilateral Ureteric Obstruction
Published on: July 18, 2025
[When should unilateral renal stenosis not be dilated ?]
Yoann David1, Lara Howarth1, Vincent Bourquin2
1Service de médecine interne, Hôpital de la Tour, Avenue J.-D. Maillard 3, 1217 Meyrin.
Renal artery stenosis can cause high blood pressure and kidney problems. While artery dilation may seem logical, current evidence suggests it carries risks and should only be considered under specific criteria.
Area of Science:
- Nephrology
- Cardiology
- Vascular Surgery
Background:
- Renal artery stenosis (RAS) is a significant cause of secondary hypertension.
- Stenosis can lead to reduced kidney function, heart failure, and pulmonary edema, particularly with bilateral involvement.
Observation:
- The intuitive approach to dilate stenosed renal arteries to improve outcomes is often contradicted by existing literature.
- This case highlights unilateral RAS where revascularization indications were relative, posing unnecessary risks.
Findings:
- Revascularization for RAS is not universally beneficial and carries inherent procedural risks.
- Specific, well-defined criteria must guide the decision for invasive treatment in RAS patients.
Implications:
- Careful patient selection is crucial to avoid exposing individuals to unwarranted risks associated with renal artery revascularization.
- Clinical practice should align with evidence-based guidelines, emphasizing conservative management when revascularization benefits are uncertain.
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