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Assessment of Vascular Function in Patients With Chronic Kidney Disease
08:50

Assessment of Vascular Function in Patients With Chronic Kidney Disease

Published on: June 16, 2014

Arterial stiffness and enlargement in mild-to-moderate chronic kidney disease

M Briet1, E Bozec, S Laurent

  • 1Department of Physiology, Hôpital Européen Georges Pompidou, Assistance Publique Hôpitaux de Paris, Paris, France.

Kidney International
|January 13, 2006
PubMed

Insights

Chronic kidney disease (CKD) leads to arterial enlargement and increased stiffness, even with moderate reductions in glomerular filtration rate (GFR). This arterial remodeling parallels declining kidney function, impacting cardiovascular health.

Area of Science:

  • Nephrology
  • Cardiovascular Medicine
  • Vascular Biology

Background:

  • Chronic kidney disease (CKD) significantly increases cardiovascular risks.
  • Arterial stiffness and remodeling are known in end-stage renal disease, but less understood in moderate CKD.
  • The arterial phenotype in patients with moderately reduced glomerular filtration rate (GFR) requires further investigation.

Purpose of the Study:

  • To investigate arterial phenotype, including diameter, stiffness, and remodeling, in patients with mild-to-moderate CKD.
  • To compare arterial characteristics between CKD patients, hypertensive patients without CKD, and normotensive individuals.
  • To determine the relationship between GFR and arterial properties in CKD.

Main Methods:

  • Noninvasive high-definition echotracking system used to assess common carotid artery diameter, intima-media thickness (IMT), distensibility, and Young's elastic modulus.
  • Comparison of 95 CKD patients with 121 hypertensive and 57 normotensive subjects.
  • Measurement of GFR using renal clearance of (51)Cr-ethylenediaminetetraacetate and carotid-femoral pulse wave velocity.

Main Results:

  • CKD patients exhibited significantly larger carotid internal diameters than hypertensives and normotensives, leading to increased wall stress.
  • No significant difference in IMT was observed between CKD and hypertensive groups.
  • Carotid distensibility and elastic modulus were comparable between CKD and hypertensive groups, but significantly worse than in normotensives. Carotid-femoral pulse wave velocity was higher in CKD patients.

Conclusions:

  • Arterial enlargement and increased arterial stiffness are present in mild-to-moderate CKD patients.
  • Declining GFR is independently associated with larger carotid diameter and increased arterial stiffness.
  • These vascular changes occur in parallel with the progression of CKD, highlighting a critical link between kidney function and cardiovascular health.

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