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Updated: Aug 4, 2026

A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis
Published on: October 26, 2020
[Surgical treatment of renal artery stenosis in children]
1Hôpital Beaujon, Clichy.
Insights
Surgical repair of renal artery stenosis in children achieved a 91% success rate, normalizing blood pressure in most patients. This effective treatment addresses renovascular hypertension, offering a good long-term prognosis for pediatric patients.
Area of Science:
- Pediatric Surgery
- Cardiovascular Surgery
- Nephrology
Background:
- Renal artery stenosis (RAS) is a significant cause of secondary hypertension in children.
- Early diagnosis and intervention are crucial for preventing long-term renal damage and cardiovascular complications.
Purpose of the Study:
- To evaluate the efficacy and outcomes of surgical treatment for renal artery stenosis in pediatric patients.
- To assess the long-term blood pressure control and prognosis following surgical correction of RAS.
Main Methods:
- A cohort of 56 children with unilateral or bilateral renal artery stenosis underwent surgical intervention.
- Procedures included nephrectomies and vascular repair, with follow-up ranging from 1 to 14 years.
Main Results:
- A 91% success rate was observed, with 51 patients achieving normal blood pressure post-surgery without antihypertensive medication.
- Five patients had persistent hypertension due to renal parenchymal lesions.
- Fibrous dysplasia was the most common pathological finding; associated vascular lesions were frequent.
Conclusions:
- Surgical treatment for pediatric renal artery stenosis offers a high success rate in normalizing blood pressure.
- The prognosis for renovascular hypertension in children is generally favorable due to the absence of typical atherosclerotic and degenerative lesions seen in adults.
Abstract:
Fifty six children with renal artery stenosis (unilateral in 42, bilateral in 14) underwent surgical treatment. Ten nephrectomies and 63 vascular repair procedures were performed. Postoperative follow-up varied from 1 to 14 years. After surgery, blood pressure returned to normal and subsequently remained so in 51 patients without any antihypertensive medication. This represents a 91% success rate. In five patients blood pressure remained high due to lesion of the renal parenchyma. Fibrous dysplasia of the renal artery was the prevailing pathologic findings. In children, associated lesions are especially frequent: coarctation of the abdominal aorta, stenosis, occlusion, aneurysms of the splanchnic arteries, pheochromocytoma. Postoperative prognosis of renovascular hypertension in children is good since atheroma and visceral or renal lesions are usually lacking.
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