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[Plasma homocysteine levels in patients with indications for cardiac revascularization]
D Rath1, J Chlumský, P Potuzník
1I. interní klinika 2. LF UK, Praha.
Insights
Homocysteine levels were not significantly elevated in patients with ischemic heart disease undergoing revascularization surgery. This suggests homocysteine may not be a primary risk factor for atherosclerosis in this specific patient group.
Area of Science:
- Cardiovascular Medicine
- Biochemistry
- Medical Research
Context:
- Atherosclerosis is a significant health concern.
- Homocysteine is a potential risk factor for cardiovascular disease.
- Investigating novel risk factors is crucial for understanding atherosclerosis.
Purpose:
- To evaluate the association between homocysteine levels and manifest ischemic heart disease (IHD) in patients indicated for revascularization surgery.
- To compare homocysteine levels in IHD patients with a control group.
- To determine if homocysteine correlates with diabetes mellitus type II or smoking.
Summary:
- This study compared homocysteine levels in 59 patients with manifest IHD undergoing revascularization surgery to a control group.
- No statistically significant difference in homocysteine levels was found between the groups.
- Elevated triglyceride levels and a higher prevalence of diabetes were noted in the IHD group.
Impact:
- The findings suggest that homocysteine levels, within the observed range, may not be a significant independent risk factor for atherosclerosis in patients with manifest IHD requiring revascularization.
- Further research is needed to clarify the role of homocysteine in atherosclerosis, particularly in diverse patient populations.
- This study contributes to the ongoing debate regarding the clinical utility of homocysteine testing in cardiovascular risk assessment.
Abstract:
The amino acid homocysteine is a further possible risk factor for the development of atherosclerosis. The authors examined at the First Medical Clinic, Second Medical Faculty Charles University in the course of 1994-1996 59 patients with manifest IHD who were examined by coronarography and because of a major finding were indicated for revascularization surgery. This group was compared with a control group of subjects of equal age without major findings on the coronary circulation. The control group differed from the former group significantly only as regards the triglyceride level which was higher in the former group and the group comprised a larger number of diabetic patients. As regards cholesterol, HDL-cholesterol, uric acid, fibrinogen levels there was no significant difference. The authors found an insignificant difference in homocysteine levels. In the investigated group of patients indicated for revascularization surgery the mean homocysteinaemia was 12.3 mumol/l (sigma 4.3 mumol/l) and in the control group 11.8 mumol/l (sigma 3.8 mumol/l). The mean homocysteine level in the investigated group did not exceed the level of 15 mumol/l reported in the literature as the borderline of normal homocysteine blood levels. The authors did not reveal a statistically significant correlation between homocysteine levels, diabetes mellitus type II and smoking.