Impact of multiple cardiovascular risk factors on carotid intima-media thickness and elasticity

Lili Niu1, Yanling Zhang, Ming Qian

  • 1Paul C Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.

Plos One
|July 12, 2013
PubMed

Insights

Clustering multiple cardiovascular risk factors (CVRFs) significantly impacts carotid intima-media thickness (IMT) and elasticity more than individual factors. This synergistic effect highlights the importance of managing combined CVRFs for vascular health.

Area of Science:

  • Vascular Biology
  • Cardiovascular Disease Research
  • Medical Imaging

Background:

  • Carotid intima-media thickness (IMT) and elasticity are established independent predictors of cardiovascular disease (CVD).
  • Cardiovascular risk factors (CVRFs) include hypertension, dyslipidemia, diabetes, overweight, and smoking.
  • The impact of clustered CVRFs on vascular parameters requires further investigation.

Purpose of the Study:

  • To determine if the clustering of three or more CVRFs has a greater impact on carotid IMT and elasticity compared to individual CVRFs.
  • To assess the independent contribution of multiple CVRFs to carotid IMT and elasticity.

Main Methods:

  • 173 participants without clinical CVD were categorized into a multiple CVRFs group (≥3 CVRFs) and a control group (≤2 CVRFs).
  • Carotid IMT was measured using B-mode ultrasound.
  • Vessel elasticity was assessed using the vessel texture matching method (VTMM).

Main Results:

  • Multiple CVRFs led to a disproportionate increase in carotid IMT (43%) and elastic modulus (60%) compared to controls.
  • Multiple regression analysis confirmed multiple CVRFs as an independent determinant of both IMT and elasticity.
  • Adjusted analysis showed significant incremental increases in IMT and elastic modulus with increasing numbers of CVRFs.

Conclusions:

  • The clustering of multiple CVRFs exerts a significantly greater impact on carotid IMT and elasticity than individual risk factors.
  • These findings suggest a synergistic interaction among CVRFs that adversely affects vascular structure and function.
  • Comprehensive management of combined CVRFs is crucial for mitigating cardiovascular risk.
Abstract

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