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Correlation of Carotid Arterial Stiffness Indices and Intima-media Thickness as indicators of Vascular lesions among patients with Cardiovascular Risk Factors.


Jayson M. Mutuc,
Maria Angela  C. Anacleto

Related Institution

Cardiovascular Institute - Cardinal Santos Medical Center San Juan, Philippines

Publication Information

Publication Type
Book of Abstracts
Publication Sub Type
CSMC Research Abstract Compendium


INTRODUCTION When loss of arterial elasticity noted at an earlier age than expected it can signify the initiation of subclinical disease. The objective of the study is to assess the feasibility and usefulness of a range of indices of arterial stiffness and intima-media thickness of the carotid artery using echo-tracking in the assessment of vascular damage among individuals with and without cardiovascular risk factors.

METHODS Subjects were divided into two groups: without cardiovascular risk factors and with cardiovascular risk factors. Each groups were further  subdivided according to decades of age. Family histories of cardiovascular risk factors and blood chemistry tests measurements were recorded. Functional parameters of arterial stiffness ( AC, Ep, Beta, PWV, and AI) by echo-tracking and the intima-media thickness were also measured. Data were expressed as mean ± SD and percentage. The relationship of the risk factors with carotid artery stiffness parameters and intima media thickness were analyzed using ANOVA. P

RESULT: The relationship between the stiffness indices and age among subjects without cardiovascular risk factors was noted to be slowly increasing  in both CCA except for the AC which is gradually reduced (Figure 1 and 2). ANOVA analysis showed age dependence for IMT. On analyzing the carotid arterial stiffness parameters among subjects without cardiovascular risk factors compared with the presence of cardiovascular risk factors not maintained on medications, there was significant difference except for the AC and AI. No significant differences in IMT noted, suggesting that this structural parameter is affected later on. Comparing the carotid arterial stiffness parameters and IMT among patient without and with cardiovascular risk factors maintained on medications, no significant difference noted (Table 11 - 15). 

CONCLUSION: The results of the study suggest relevant age-related changes occur in the arterial system and these changes can occur earlier among patients with cardiovascular risk factors. Carotid arterial stiffness  parameters (beta, Ep and PWV) are the ultrasonographic indicators which change the earliest in population with CVRF without  maintenance medications (16, 17 and 20). Pharmacologic treatment ( antihypertensive, hypoglycemic drugs, anti-dyslipidemic drugs) can alter these parameters. Echo-tracking is a potentially useful tool for the evaluation of arterial stiffness parameters in assessing vascular damage but should be further  validated in larger population.


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