Arterial stiffness in chronic kidney disease: an update.

PURPOSE OF REVIEW

Epidemiological studies have established arterial stiffness as an important risk factor for cardiovascular events and mortality in people with chronic kidney disease (CKD) at all stages. Although much has been learned about the mechanisms that lead to arterial stiffening in CKD, many questions remain unanswered and the optimal interventions for attenuating arterial stiffness remain to be determined.

RECENT FINDINGS

Recent data have confirmed the value of arterial stiffness as a predictor of both cardiovascular and renal risk. Advanced glycation end-product accumulation and chronic cytomegalovirus infection have been identified as novel potential contributors to arterial stiffening, but fibroblast growth factor 23 has not. Genetic studies suggest that the association between chronic kidney and cardiovascular disease is a result of clinical and environmental rather than genetic factors. Treatment with angiotensin-converting enzyme inhibitor or aldosterone inhibitor improves arterial stiffness in association with lowering blood pressure, but several potential novel interventions for reducing arterial stiffness await further investigation.

SUMMARY

Arterial stiffness is increasingly recognized as an important potentially modifiable measure of subclinical vascular disease in people with CKD. The introduction of arterial stiffness into routine practice awaits research focussed on including pulse wave velocity in renal and cardiovascular risk prediction tools, as well as interventions for ameliorating arterial stiffness.