Related Experiment Video
Updated: Oct 7, 2025

Multilevel Microdissection and Functional-Structural Profiling of Human Renal Arterial Branches
Published on: September 5, 2025
Correlation between Renal Artery Anatomy and Hypertension: A Retrospective Analysis of 3000 Patients
Jiayi Shen1,2, Lingchun Lyu1,2, Xiaoyan Wu1
1Lishui Hospital, Zhejiang University School of Medicine, Lishui, Zhejiang 323000, China.
Insights
Accessory renal arteries and branches are more common in patients with hypertension. These anatomical variations, along with age and dyslipidemia, are independent risk factors for developing hypertension.
Area of Science:
- Cardiovascular Imaging
- Nephrology
- Radiology
Background:
- Hypertension is a major global health concern with complex etiologies.
- Renal artery anatomy variations may play a role in blood pressure regulation.
- Understanding these variations can inform diagnostic and therapeutic strategies.
Purpose of the Study:
- To investigate the correlation between renal artery anatomical variations and blood pressure levels.
- To compare the prevalence of renal artery anomalies in undiagnosed versus diagnosed hypertension groups.
Main Methods:
- Retrospective analysis of CT imaging and laboratory data from 3000 inpatients and outpatients across 4 Chinese centers.
- Quantitative vascular analysis was performed to assess morphometric parameters of renal arteries.
Main Results:
- Accessory renal arteries were found in 23.2% unilaterally and 7.3% bilaterally.
- The prevalence of accessory renal arteries and renal artery branches was significantly higher in the diagnosed hypertension group.
- Multivariate analysis identified accessory renal artery (ARA) and age as independent risk factors for hypertension.
Conclusions:
- Renal artery anatomical variations, particularly accessory renal arteries, are more prevalent in hypertensive individuals.
- Accessory renal arteries and branches outside the renal hilum are independent risk factors for hypertension.
- Renin activity, influenced by renal sympathetic nerve activity, is linked to accessory renal arteries.
Objective:
To assess the correlation between renal artery anatomy and blood pressure in Undiagnosed Hypertension and Diagnosed Hypertension.
Methods:
The renal artery CT scanning imaging data and laboratory data of 3000 inpatients and outpatients were collected retrospectively in 4 centers of China. Morphometric parameters were assessed using the quantitative vascular analysis (unit: mM).
Results:
687 cases (23.2%) had accessory renal arteries unilaterally, and 216 cases (7.3%) had bilateral accessory renal arteries, including left kidney 825 (27.9%) and right kidney 798 (27.0%). The presence of accessory renal arteries and renal artery branches was higher in the diagnosed hypertension group as compared with the undiagnosed hypertension group (MARB, pp < 0.001; ARA, p < 0.001; others, p < 0.001). Consequently, multivariate regression analysis showed that age (OR = 2.519 (95% CI: 0.990-6.411, p < 0.001)), dyslipidemia (OR = 1.187 (95% CI: 0.960-1.454, p = 0.007)), renal hilum Outside the main renal artery branch (MRAB) (OR = 2.069 (95% CI: 1.614-2.524, p = 0.002)), and accessory renal artery (ARA) (OR = 2.071 (95% CI: 1.614-2.634, p = 0.001)) were risk factors of hypertension. In addition, higher renin activity was associated with ARA patients (2.19 ± 2.91 vs. 1.75 ± 2.85, p < 0.001).
Conclusions:
When comparing renal arteries side by side, the anatomical length of the renal arteries is significantly different. In addition, the prevalence of accessory renal arteries and renal artery branches is higher in the hypertension group. The auxiliary renal artery and the main renal artery branch outside the renal portal are independent factors of hypertension. Renal sympathetic nerve activity is affected by renin activity and is related to the accessory renal artery.
Related Concept Videos
Hypertension and Regulation of Blood Pressure
Hypertension III: Clinical Manifestations and Diagnostic Studies
Hypertension II: Pathophysiology
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors
Antihypertensive Drugs: Direct Renin Inhibitors
Hypertension I: Introduction

