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Homocysteine and lipid levels in young patients with coronary artery disease
A Puri1, O K Gupta, R N Dwivedi
1KPS Post Graduate Institute of Medicine; +Professor and Head, LPS Institute of Cardiology, GSVM Medical College, Kanpur.
Insights
Elevated homocysteine is a significant independent risk factor for premature coronary artery disease (CAD) in young Indian patients. This novel risk factor should be evaluated, especially when traditional risk factors are absent.
Area of Science:
- Cardiovascular Medicine
- Biochemistry
- Public Health
Background:
- Coronary artery disease (CAD) affects Indians prematurely.
- Homocysteine is a recognized risk factor for CAD.
- The role of homocysteine in young Indian CAD patients requires further investigation.
Purpose of the Study:
- To determine the independent association of homocysteine with traditional risk factors in young Indian CAD patients.
- To highlight the importance of homocysteine as a novel risk factor in this population.
Main Methods:
- Study included 51 young CAD patients (< 45 years) and 15 healthy controls.
- Patients were divided into hyperlipidemic and normolipidemic subgroups.
- Plasma homocysteine levels were measured using high-pressure liquid chromatography.
Main Results:
- Mean homocysteine levels were significantly higher in CAD patients (27.8 nmol/ml) compared to controls (13.22 nmol/ml).
- Over 72% of young CAD patients had homocysteine levels above the cut-off (18 nmol/ml).
- Homocysteine levels were elevated regardless of the patient's lipid profile.
Conclusions:
- Plasma homocysteine is a significant independent risk factor for premature CAD in young Indians.
- Homocysteine evaluation is recommended for young CAD patients, particularly those without traditional risk factors.
- The findings underscore the need to recognize homocysteine's role in cardiovascular risk stratification.
Aims And Objectives:
Indians are more prone to premature coronary artery disease (CAD). The importance of homocysteine as a risk factor for CAD in Indian patients needs to be recognized. The aim of this study was to note the independent association of this novel risk factor with traditional ones in young CAD patients.
Methodology:
This study included 51 patients, < 45 years of age, with proven CAD. They were further divided into two subgroups based on their lipid profile. Group A (n = 30) hyperlipidemic CAD patients and Group B (n = 21) normolipidemic CAD patients. They were compared with 15 age and sex matched healthy controls. Plasma homocysteine was assayed using high pressure liquid chromatography, fasting lipid profile and other risk factors were compared.
Results:
The mean level of homocysteine in patient group was 27.8 +/- 13.11 nmol/ml. In subgroup A it was 28.86 +/- 13.02 while in subgroup B it was 26.46 +/- 13.44. In the patient group (n = 51), 37 (72.55%) had homocysteine levels greater than 18 nmol/ml. In the control group mean homocysteine was 13.22 nmol/ml +/- 7.36 and only 4 (26.77%) had homocysteine levels greater than the cut-off.
Conclusions:
Thus in spite of some baseline variations, plasma homocysteine emerged as a significant (p = 0.0009, OR 6.05) independent risk factor for young CAD patients and was not altered by the baseline lipid profile of the patient. Therefore it should be evaluated in all young patients of CAD in the absence of traditional risk factors.
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