The association between arterial properties and blood pressure in children

Area of Science:

• Pediatric cardiology
• Vascular physiology
• Cardiovascular disease risk factors

Background:

• Elevated blood pressure (BP) in adults correlates with arterial stiffness and thickness.
• The impact of high BP on arterial health in children is not well-understood.
• Early identification of cardiovascular risk in children is crucial.

Purpose of the Study:

• To investigate the relationship between childhood BP and arterial markers of arteriosclerotic progression.
• To determine if elevated BP in children is associated with changes in arterial stiffness and thickness.
• To assess cardiovascular disease risk factors in children with high BP.

Main Methods:

• Study included 106 children categorized into high BP (HBP; ≥ 95th percentile) and normal BP (NBP; < 90th percentile) groups.
• Laboratory assessments included systemic pulse wave velocity (PWV), common carotid artery (CCA) intima media thickness (IMT) and distensibility.
• Body mass index (BMI) and pubertal maturation were also measured.

Main Results:

• The HBP group exhibited higher BMI, heart rate, and PWV compared to the NBP group (p < 0.001).
• No significant differences were found in CCA distensibility or IMT between the HBP and NBP groups.
• Multivariate regression confirmed BP group as an independent predictor of PWV, controlling for other factors.

Conclusions:

• Children with elevated BP demonstrate increased systemic arterial stiffness (PWV).
• Elevated BP in children does not appear to affect CCA IMT or distensibility.
• Findings suggest augmented cardiovascular disease risk markers in healthy children with high BP.