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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

The microvasculature in chronic kidney disease

Qi Lun Ooi1, Foong Kien Newk-Fon Hey Tow, Raj Deva

  • 1The University of Melbourne, Department of Medicine (Northern Health), The Northern Hospital, Epping VIC 3076, Australia.

Clinical Journal of the American Society of Nephrology : CJASN
|July 26, 2011
PubMed

Insights

Chronic kidney disease (CKD) stages 3-5 is linked to narrower retinal blood vessels. This finding highlights microvascular changes in advanced kidney disease.

Area of Science:

  • Nephrology
  • Ophthalmology
  • Cardiovascular Medicine

Background:

  • Individuals with chronic kidney disease (CKD) stages 3 to 5 face elevated risks for cardiac and vascular complications.
  • The association between advanced CKD and alterations in small vessel caliber remains an area of investigation.

Purpose of the Study:

  • To investigate the relationship between CKD stages 3-5 and the caliber of retinal microvasculature.
  • To compare retinal vessel diameters in patients with advanced CKD to those with earlier stages of kidney disease.

Main Methods:

  • A cross-sectional observational study involving 126 patients with CKD stages 3-5 and 126 controls with CKD stages 1-2.
  • Retinal vessel diameters were quantified using digital fundus images, measuring central retinal artery equivalent (CRAE) and central retinal vein equivalent (CRVE).

Main Results:

  • Patients with CKD stages 3-5 exhibited significantly smaller mean CRAE and CRVE compared to controls.
  • A progressive decrease in CRAE and CRVE was observed with increasing stages of CKD.
  • Both CKD and hypertension independently predicted arteriolar narrowing, even after adjusting for other risk factors.

Conclusions:

  • Reduced estimated glomerular filtration rate (eGFR) is associated with microvascular narrowing.
  • These findings suggest that microvascular changes are present in patients with advanced chronic kidney disease.
Abstract

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