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July 28, 2006Journal of HypertensionOpen Access

Endothelial dysfunction, intima–media thickness and coronary reserve in relation to risk factors and Framingham score in patients without clinical atherosclerosis

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Key result

Cardiovascular risk factors in patients without clinical atherosclerosis were associated with significantly impaired flow-mediated dilation, greater intima-media thickness, and lower coronary flow reserve.

Why the study?

Do non-invasive vascular measurements (FMD, IMT, CFR) correlate with cardiovascular risk factors and Framingham score in patients without clinical atherosclerosis?

Population

106 subjects without clinical atherosclerosis, mean age 59.2 years, 42% male. 91 had cardiovascular risk…

Design

Cross-sectional

Authors

RCRaquel CampuzanoJMJosé Luis Betrán MoyaAGAlberto García‐Lledó

Discussion

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Overview

May signal early vascular changes from risk factors; leaves open whether markers predict events or respond to therapy.

Study Design

Type

Cross-Sectional (n=106)

Multicenter

No

Structured PICO

Do non-invasive vascular measurements (FMD, IMT, CFR) correlate with cardiovascular risk factors and Framingham score in patients without clinical atherosclerosis?

P
Population
106 patients without clinical atherosclerosis, mean age 59.3 years, evaluated for endothelial dysfunction, intima-media thickness, and coronary flow reserve.
C
Comparator
Patients without cardiovascular risk factors (n=15)
O
Outcome
Relationship between flow-mediated dilation (FMD), intima-media thickness (IMT), coronary flow reserve (CFR) and cardiovascular risk factors / Framingham scoresurrogate

Main Result

Mean Difference: 7.9 (95% CI 6.1–9.8)

Absolute Event Rate: 3.7% vs 11.6%

p-value: p=0.000

In patients without clinical atherosclerosis, cardiovascular risk factors are associated with impaired endothelial function, reduced coronary flow reserve, and increased intima-media thickness, with IMT correlating best with the Framingham risk score.

Limitations

  • Patients with cardiovascular risk factors were older than those without.
  • Small sample size of diabetic individuals.
  • Misbalance of different risk factors reflecting the clinical setting.
  • Prior treatment of hypertensive, diabetic, or hypercholesterolemic patients could have affected the results despite a 24-hour washout.
  • Patients with cardiovascular risk factors were older than those without, limiting the value of the control group
  • Small sample of diabetic individuals could have affected the regression models
  • Treatment of hypertensive, diabetic, or hypercholesterolemic patients could have affected the results

Cite This Study

Campuzano et al. (2006) conducted a cross-sectional in Without clinical atherosclerosis (n=106). Cardiovascular risk factors vs. No cardiovascular risk factors was evaluated on Flow-mediated dilation (FMD) (MD 7.9%, 95% CI 6.1-9.8, p=0.000). Cardiovascular risk factors in patients without clinical atherosclerosis were associated with significantly impaired flow-mediated dilation, greater intima-media thickness, and lower coronary flow reserve.

synapsesocial.com/papers/6a640cd08cecd067d8217115https://doi.org/10.1097/01.hjh.0000239294.17636.27
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Relationship Between Brachial Artery Flow-Mediated Dilation, Carotid Artery Intima-Media Thickness and Coronary Flow Reserve in Patients With Coronary Artery Disease2012 · 8 citations
  2. 2Interrelationship Between Noninvasive Predictors of Atherosclerosis: Transthoracic Coronary Flow Reserve, Flow‐Mediated Dilation, Carotid Intima‐Media Thickness, Aortic Stiffness, Aortic Distensibility, Elastic Modulus, and Brachial Artery Diameter2006 · 66 citations
  3. 3Interrelations Between Brachial Endothelial Function and Carotid Intima-Media Thickness in Young Adults2004 · 424 citations
  4. 4Evidence of a weak correlation between peripheral endothelial function measures and carotid intima-media thickness2012
  5. 5Carotid Intima-Media Thickness Is Correlated with Impairment of Coronary Flow Reserve in Hypertensive Patients without Coronary Artery Disease2003 · 39 citations