Arterial Compliance Measurement in Overweight and Hypertensive Children

Area of Science:

• Pediatric Cardiology
• Cardiovascular Physiology
• Biomedical Engineering

Background:

• Arterial stiffness, measured by pulse wave velocity (PWV), is a key indicator of cardiovascular health.
• Hypertension and obesity are significant risk factors for cardiovascular diseases in children and adolescents.
• Early identification of arterial stiffness can aid in managing cardiovascular risk in pediatric populations.

Purpose of the Study:

• To investigate pulse wave velocity (PWV) and augmentation index (Alx) in relation to hypertension and obesity in pediatric patients.
• To assess arterial stiffness as a potential screening marker for early cardiovascular risk in children.
• To compare arterial stiffness measures between hypertensive, overweight, and healthy pediatric groups.

Main Methods:

• Analysis of two pediatric groups: 31 with hypertension and 85 with overweight, compared to 50 healthy controls.
• Measurements included blood pressure, anthropometrical parameters, and PWV using the applanation tonometry technique.
• Opportunity sampling was employed at the Department of Pediatrics, Maribor.

Main Results:

• In the control group, PWV correlated significantly with age (r=0.461, p=0.001).
• In the hypertensive group, PWV correlated significantly with central mean arterial pressure (CMAP) (r=0.496, p=0.005).
• In the overweight group, PWV showed significant correlations with both age (r=0.484, p<0.001) and body mass index (BMI) (r=0.347, p=0.001).

Conclusions:

• Overweight and hypertensive children and adolescents exhibit reduced arterial compliance compared to healthy peers.
• These findings suggest that arterial stiffness assessment could be valuable for screening pediatric patients at risk of early cardiovascular disease.
• The study underscores the importance of monitoring arterial health in pediatric populations with risk factors like hypertension and obesity.