Narrative Review of Carotid disease and the kidney
Luca Zanoli1, Dimitri P Mikhailidis2
1Nephrology, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy.
Insights
Patients with chronic kidney disease (CKD) experience increased cardiovascular risk due to arterial stiffening and remodeling. Understanding this arterial phenotype is crucial for managing cardiovascular complications in CKD patients.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Vascular Biology
Background:
- Patients with chronic kidney disease (CKD) exhibit elevated cardiovascular (CV) risk, partially unexplained by traditional factors.
- Carotid arteriosclerosis and atherosclerosis are prevalent in CKD, contributing to CV disease and potentially impacting renal disease progression.
- Arterial stiffening is detectable even in early stages of reduced glomerular filtration rate (GFR), while thickening occurs in later stages.
Purpose of the Study:
- To review the arterial phenotype in patients with CKD.
- To discuss the consequences of carotid dysfunction and arterial stiffening in CKD.
- To explore therapeutic strategies for improving carotid function in CKD patients.
Main Methods:
- Review of existing literature on arterial properties in CKD patients.
- Analysis of functional and structural alterations in the arterial wall.
- Discussion of the link between arterial stiffness and target organ damage (brain, kidney, heart).
Main Results:
- The arterial phenotype in CKD is characterized by increased common carotid artery stiffness with outward remodeling.
- Muscular arteries show normal/reduced stiffness with inward remodeling.
- Arterial stiffness mediates CKD's impact on target organs.
Conclusions:
- CKD is associated with distinct arterial changes, including carotid artery stiffening and remodeling.
- Carotid dysfunction contributes to increased cardio- and cerebrovascular risk in CKD.
- Therapeutic interventions targeting carotid function may improve outcomes in CKD patients.
Abstract:
Patients with chronic kidney disease (CKD) have an increased cardiovascular (CV) risk that is only in part explained by established risk factors. Carotid arteriosclerosis and atherosclerosis are increased in CKD, play a role in the causation of CV disease in these patients and can affect the progression of renal disease. The arterial stiffening process is evident even in CKD patients with a very mild reduction of glomerular filtration rate (GFR) whereas arterial thickening is evident in more advanced stages. Possible mechanisms include functional and structural alterations of the arterial wall. Arterial stiffness can mediate the effect of CKD on target organs (i.e., brain, kidney and heart). In this review we discuss the arterial phenotype of patients with CKD. This is characterized by increased common carotid artery stiffness and outward remodeling (enlargement and thickening of the arterial wall) and a normal/reduced stiffness paired with an inward remodeling (narrowing of the arterial wall) of muscular arteries. We also discuss the consequences of carotid dysfunction, including the involvement of large elastic arteries stiffness on ventricular-vascular coupling, the mechanisms linking carotid stiffening and increased cardio- and cerebrovascular risk in CKD patients, and the therapeutic options to improve carotid function.
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