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Pulse-Wave Velocity, Flow-Mediated Dilation, and Carotid Intima-Media Thickness to Assess Cardiovascular Risk in Population with Metabolic Syndrome
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[Risk factors for a high carotid intima media thickness among healthy adults]

Mónica Acevedo1, Rodrigo Tagle, Verónica Kramer

  • 1División de Enfermedades Cardiovasculares, Pontificia Universidad Católica de Chile, Santiago Centro, Chile. macevedo@med.puc.cl

Revista Medica De Chile
|September 1, 2011
PubMed

Insights

Hypertension is the primary risk factor for elevated carotid intima-media thickness (CIMT) and atherosclerotic plaques in healthy adults. Managing blood pressure is crucial for cardiovascular health.

Area of Science:

  • Cardiovascular Medicine
  • Public Health
  • Epidemiology

Background:

  • Carotid intima-media thickness (CIMT) serves as a key indicator of subclinical cardiovascular damage.
  • Traditional cardiovascular risk factors significantly influence CIMT progression.
  • Identifying modifiable risk factors is essential for early cardiovascular disease prevention.

Purpose of the Study:

  • To identify and quantify the attributable risk factors associated with elevated CIMT in a healthy adult population.
  • To investigate the specific contribution of hypertension to high CIMT and atherosclerotic plaque formation.

Main Methods:

  • A cohort of 1270 healthy adults (mean age 44 ± 11 years) underwent comprehensive health assessments.
  • Measurements included blood pressure, anthropometrics, lipid profiles, and blood glucose levels.
  • Carotid ultrasound was employed to determine CIMT and detect atherosclerotic plaques, with hypertension, dyslipidemia, and diabetes defined by standard criteria.

Main Results:

  • The mean CIMT was 0.62 ± 0.01 mm, with the 75th percentile at 0.67 mm.
  • Hypertension emerged as the most significant risk factor for CIMT exceeding the 75th percentile (attributable risk 54%).
  • Hypertension also showed a substantial attributable risk (57%) for the presence of atherosclerotic plaques.

Conclusions:

  • Hypertension is identified as the principal modifiable risk factor contributing to increased CIMT in this healthy adult cohort.
  • These findings underscore the critical importance of hypertension management in preventing subclinical atherosclerosis.
Abstract

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