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Updated: Aug 14, 2026

Assessment of Vascular Function in Patients With Chronic Kidney Disease
Published on: June 16, 2014
The role of the kidney in cardiovascular medicine
1Department Internal Medicine (Nierenklinik), Ruperto Carola University, Bergheimer Str. 56 a, D-69115 Heidelberg, Germany, FRG. Prof.E.Ritz@t-online.de
Insights
Kidney disease causes hypertension, while high blood pressure worsens kidney function. Recent research highlights mechanisms like altered sodium excretion and the renin-angiotensin system, advocating for lower blood pressure targets in kidney patients.
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Hypertension Research
Background:
- The kidney plays a dual role in hypertension, acting as both a cause and a victim.
- Renal disease and structural abnormalities can initiate or exacerbate hypertension.
- Elevated blood pressure, even within the normotensive range, accelerates renal function decline in primary kidney disease.
Purpose of the Study:
- To review recent advancements in understanding the complex interplay between renal function and hypertension.
- To emphasize the multifactorial mechanisms underlying renal hypertension.
- To highlight revised blood pressure targets for patients with kidney disease.
Main Methods:
- Review of current scientific literature on renal hypertension.
- Analysis of physiological mechanisms involved in blood pressure regulation and kidney function.
- Examination of updated clinical guidelines and treatment targets.
Main Results:
- Multiple mechanisms contribute to renal hypertension, including altered blood pressure natriuresis, renin-angiotensin system activation, sympathetic nervous system overactivity, and impaired vasodilation.
- Existing recommendations for blood pressure targets in renal patients have been substantially revised.
- Lowering blood pressure to below 125/75 mm Hg is now recommended for patients with kidney disease.
Conclusions:
- The relationship between the kidney and hypertension is intricate, involving bidirectional influences.
- Effective management of renal hypertension requires addressing multiple pathophysiological pathways.
- Achieving lower blood pressure targets and reducing proteinuria are crucial for preserving renal function.
Abstract:
The relationship between the kidney and hypertension is complex. The kidney is both culprit and victim. Renal disease and even renal structural abnormalities (nephron underdosing) lead to hypertension. On the other hand, blood pressure (even blood pressure values in the range of normotension) accelerates a progressive loss of renal function in patients with primary renal disease. This review discusses some recent work in this field, emphasizing that multiple mechanisms are operative in renal hypertension, particularly a shift in the natriuresis-blood pressure relationship (blood pressure natriuresis), inappropriate activation of the renin-angiotensin system, sympathetic overactivity, and impaired endothelial cell-dependent vasodilatation. It also emphasizes the substantial revision of past recommendations concerning blood pressure targets. In renal patients, blood pressure should be reduced to levels below 125/75 mm Hg. In addition to blood pressure, a reduction in proteinuria is widely considered an additional treatment target.
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