Evaluation of arterial stiffness in nondiabetic chronic kidney disease patients

Area of Science:

• Nephrology
• Cardiovascular Medicine
• Vascular Biology

Background:

• Chronic kidney disease (CKD) is a global health concern associated with high mortality, particularly in uremic patients.
• Structural and functional changes in major arteries are identified as key contributors to mortality in CKD.
• Carotid-femoral pulse wave velocity (cfPWV) shows a stepwise increase across CKD stages.

Purpose of the Study:

• To evaluate cfPWV and augmentation index (AIx) as markers of arterial stiffness in non-diabetic CKD patients.
• To compare arterial stiffness markers between non-diabetic CKD patients and a healthy control population.
• To investigate the relationship between different stages of CKD and arterial stiffness.

Main Methods:

• A cross-sectional study conducted over two years (January 2012 - January 2014) in a Nephrology Department.
• Inclusion of 50 patients with non-diabetic CKD and 50 healthy controls.
• Assessment of arterial stiffness using the PeriScope device, measuring blood pressure, PWV, heart rate, aortic augmentation pressure, and AIx.

Main Results:

• Pulse wave velocity (PWV) positively correlated with blood pressure, mean aortic arterial pressure, serum creatinine, and serum uric acid.
• PWV negatively correlated with estimated glomerular filtration rate.
• Arterial stiffness increased with CKD stage, was higher in the non-diabetic CKD group than the general population, and progressed gradually from Stage 2 to 5, then abruptly in dialysis patients.

Conclusions:

• Arterial stiffness is significantly elevated in non-diabetic CKD patients compared to healthy individuals.
• A clear progression of arterial stiffness is observed with advancing stages of CKD.
• Further research is needed to explore interventions aimed at reducing arterial stiffness and cardiovascular events in CKD patients.