Related Experiment Videos
Carotid intima-media thickness: correlation with the British Regional Heart Study risk score
G Geroulakos1, D O'Gorman, A Nicolaides
1Academic Surgical Unit, St Mary's Hospital, London, UK.
Insights
Carotid intima-media thickness (IMT) correlates with the British Regional Heart Study (BRHS) risk score, a marker for coronary artery disease. This finding suggests IMT
Area of Science:
- Cardiovascular Medicine
- Diagnostic Imaging
- Biomarkers
Background:
- Intima-media thickness (IMT) of the common carotid artery is linked to coronary artery disease and atherosclerosis risk factors.
- The British Regional Heart Study (BRHS) risk score identifies individuals at high risk for ischemic heart disease.
Purpose of the Study:
- To determine if carotid intima-media thickness (IMT) correlates with the BRHS risk score.
- To assess IMT as a potential surrogate marker for coronary artery disease risk.
Main Methods:
- High-resolution ultrasonography measured IMT in 89 individuals.
- Carotid IMT and BRHS risk scores were recorded and analyzed for correlation.
Main Results:
- A significant linear relationship was found between IMT and the BRHS score (r = 0.56; P < 0.001).
- Individuals with BRHS scores above the 80th percentile showed significantly higher mean IMT compared to those below (P < 0.001).
Conclusions:
- Carotid IMT may serve as a valuable surrogate endpoint for coronary artery disease.
- IMT could be considered for use in future prospective studies and clinical trials evaluating cardiovascular risk.
Objectives:
The thickness of the intima-media (IMT) layer of the common carotid artery is a marker of severe and extensive coronary artery disease and it has been reported that it is related to the presence of risk factors for atherosclerosis. The purpose of this study was to establish whether the IMT correlates with the British Regional Heart Study (BRHS) risk score which identifies a large proportion of men who may experience a major ischaemic heart disease event within 5 years of initial screening.
Subjects:
High resolution ultrasonography was used to measure the thickness of the intima-media layer in 89 individuals. The BRHS risk score of these individuals was also recorded.
Main Outcome Measures:
Correlation between the carotid IMT and the BRHS score.
Results:
The IMT was linearly related to the BRHS score (r = 0.56; P < 0.001). There was a highly significant difference between the mean IMT in individuals with a risk score greater and those with a risk score lesser than the 80th percentile (P < 0.001).
Conclusion:
It is concluded that the IMT may be a useful surrogate end-point or biological marker of coronary artery disease and might be considered for use in prospective studies and clinical trials.