Ambulatory arterial stiffness in chronic kidney disease: a methodological review

Area of Science:

• Nephrology
• Cardiology
• Vascular Biology

Background:

• Cardiovascular mortality is the leading cause of death in chronic kidney disease (CKD) and end-stage renal disease (ESRD).
• Arterial stiffening, due to medial calcification, significantly contributes to cardiovascular risk in these patients.
• Traditional risk factors have limited prognostic value compared to arterial stiffness measurements like pulse wave velocity (PWV).

Purpose of the Study:

• To review current data and future directions for assessing arterial stiffness in CKD patients.
• To evaluate ambulatory arterial stiffness index (AASI) and newer oscillometric 24-hour monitoring methods.
• To explore the potential of these methods for improved cardiovascular risk stratification and outcomes in CKD.

Main Methods:

• Review of existing literature on ambulatory arterial stiffness monitoring.
• Discussion of ambulatory arterial stiffness index (AASI) derived from ambulatory blood pressure measurements.
• Analysis of novel oscillometric devices (e.g., Mobil-O-Graph, Vasotens, Arteriograph 24) for 24-hour arterial stiffness assessment.

Main Results:

• Arterial stiffness, particularly PWV, is a strong predictor of cardiovascular outcomes in CKD and ESRD patients.
• Ambulatory monitoring methods offer an alternative to office-based measurements.
• Newer oscillometric technologies enable 24-hour monitoring of arterial stiffness parameters, including PWV, augmentation index, and central blood pressure.

Conclusions:

• 24-hour monitoring of arterial stiffness holds promise for better cardiovascular risk stratification in CKD patients.
• Further research is needed to validate the clinical utility of AASI and novel oscillometric methods.
• Improved understanding of 24-hour arterial stiffness variability may lead to enhanced cardiovascular outcomes in CKD and ESRD populations.