Related Experiment Video
Updated: Jul 10, 2026

Assessment of Vascular Function in Patients With Chronic Kidney Disease
Published on: June 16, 2014
Impaired vascular reactivity in patients with chronic kidney disease
Fabian Tetzner1, Alexandra Scholze, Antje Wittstock
1Medizinische Klinik IV, Charité Campus Benjamin Franklin, Berlin, Deutschland.
Insights
Vascular stiffness and reactivity worsen in advanced chronic kidney disease (CKD). These arterial changes are evident even in earlier CKD stages, highlighting the need for cardiovascular monitoring in CKD patients.
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Biomedical Engineering
Background:
- Chronic kidney disease (CKD) is linked to increased cardiovascular complications.
- Noninvasive vascular property evaluation may correlate with CKD progression and patient characteristics.
Purpose of the Study:
- To investigate the relationship between noninvasive arterial vascular properties and different stages of chronic kidney disease (CKD).
- To assess if vascular properties correlate with clinical and biochemical markers in CKD patients.
Main Methods:
- Arterial vascular properties, including the reflective index, were measured using digital photoplethysmography in 260 CKD patients.
- Patients were categorized by estimated glomerular filtration rate (eGFR) into stages 1-5.
- Vascular reactivity was also assessed, and 50 healthy individuals served as controls.
Main Results:
- The reflective index, indicating arterial stiffness, was significantly higher in advanced CKD stages (3-5) compared to early stages (1-2).
- Arterial vascular reactivity was notably impaired in patients with advanced CKD (stages 3-5).
- A significant inverse correlation was found between the reflective index and eGFR, both in univariate and multivariate analyses.
Conclusions:
- Advanced stages of CKD are associated with increased arterial stiffness and diminished vascular reactivity.
- These detrimental vascular changes are detectable as early as CKD stages 3 and 4.
Background:
Patients with chronic kidney disease (CKD) show increased cardiovascular morbidity. We hypothesized that vascular properties which can be routinely evaluated noninvasively are related to different stages of CKD and their clinical and biochemical characteristics.
Methods:
Arterial vascular properties were quantified by the reflective index using digital photoplethysmography in 260 patients with CKD. Patients were grouped according to estimated glomerular filtration rate (eGFR). Additional measurements were performed in 50 healthy control subjects.
Results:
In patients with CKD stage 1 and 2 (n = 115; age 65 +/- 1 years) the reflective index was 30 +/- 1%, whereas in patients with CKD stage 3 and 4 (n = 60; age 72 +/- 1 years) the reflective index was 36 +/- 1%, and in patients with CKD stage 5 (n = 85; age 64 +/- 1 years) the reflective index was 36 +/- 1% (p < 0.01 by Kruskal-Wallis test) indicating increased arterial stiffness in advanced CKD. Arterial vascular reactivity was significantly impaired in patients with advanced stages of CKD (stage 1 and 2, 78 +/- 12%; stage 3 and 4, 32 +/- 12%; stage 5, 33 +/- 12%; p < 0.01). Univariate analysis showed a significant correlation of the reflective index and eGFR (Pearson r = -0.24; p < 0.0001). Multivariate regression analysis showed an independent association of the reflective index and eGFR (adjusted correlation coefficient, -0.24; p < 0.001).
Conclusion:
The advanced stages of CKD are associated with increased vascular stiffness and impaired vascular reactivity and these changes are already present in CKD stage 3 and 4.
Related Concept Videos
Chronic Kidney Disease IV: Nursing Management
Chronic Kidney Disease I: Introduction
Chronic Kidney Disease II: Clinical Manifestations
Diabetic Nephropathy
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Chronic Kidney Disease III: Interprofessional Care
