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Updated: Jun 3, 2026
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Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
Published on: May 26, 2022
Connections between renovascular hypertension and nephrectomy
Daniela Rahotă1, Elena Roşca, Gabriela Muţiu
1Department of Anatomy and Embryology, Faculty of Medicine and Pharmacy, University of Oradea, Romania. dr.rahota@gmail.com
Summary
Renovascular hypertension (RVH) is often missed and diagnosed incidentally. Pathological analysis of nephrectomy samples revealed underlying hypertension in patients undergoing surgery for renal tumors or hydronephrosis.
Area of Science:
- Nephrology
- Pathology
- Urology
Background:
- Renovascular hypertension (RVH) is frequently underdiagnosed, often discovered incidentally during routine check-ups or investigations for other conditions.
- RVH diagnosis is challenging as its symptoms can be masked by those of underlying surgical diseases.
- Retrospective analysis after nephrectomy can establish the renal origin of arterial hypertension.
Purpose of the Study:
- To investigate the prevalence of histopathological signs of renovascular hypertension in patients undergoing nephrectomy for other urological conditions.
- To highlight the importance of identifying secondary hypertension mechanisms for timely surgical intervention and kidney preservation.
Main Methods:
- Analysis of 217 kidney and renal pelvis samples from nephrectomies performed between 2008-2009.
- Histopathological examination of samples to identify changes indicative of benign and malignant nephroangiosclerosis.
- Correlation of histopathological findings with urological diagnoses leading to nephrectomy.
Main Results:
- Out of 83 nephrectomies for renal tumors, 8 cases (9.6%) showed angiosclerosis, indicating long-standing hypertension.
- Three nephrectomies for hydronephrosis revealed histopathological changes of benign nephroangiosclerosis.
- Overall, 8.8% of patients undergoing nephrectomy for surgical conditions had histopathological evidence of nephroangiosclerosis.
Conclusions:
- RVH symptoms are often obscured by co-existing surgical conditions, necessitating careful evaluation.
- Histopathological examination of nephrectomy specimens can retrospectively confirm RVH.
- Long-term blood pressure monitoring is crucial for establishing the etiology of renal hypertension and guiding treatment.
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