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Homocysteine: an independent risk factor for the failure of vascular intervention
I C Currie1, Y G Wilson, J Scott
1Department of Vascular Surgery, Bristol Royal Infirmary, UK.
Insights
High homocysteine levels (hyperhomocysteinaemia) are linked to arterial disease and vascular procedure failure in patients. Identifying and treating this condition may improve patient outcomes.
Area of Science:
- Cardiovascular Science
- Metabolic Disorders
- Oxidative Stress Research
Background:
- Hyperhomocysteinaemia is a known risk factor for early arterial disease.
- Vascular disease affects both young and older individuals, with varying risk factors.
- Homocysteine's role in free radical generation suggests a link to oxidative stress.
Purpose of the Study:
- To assess homocysteine levels and cardiovascular risk factors in young and older patients with vascular disease.
- To investigate the relationship between homocysteine, antioxidant capacity, and vascular procedure outcomes.
- To identify independent risk factors for vascular procedure failure.
Main Methods:
- Assessed homocysteine levels and traditional cardiovascular risk factors in 41 young and 25 older vascular disease patients.
- Measured total antioxidant capacity to evaluate oxidative stress.
- Analyzed data to determine independent predictors of vascular procedure failure.
Main Results:
- Hyperhomocysteinaemia was present in 29% of patients, with no age-related difference.
- Homocysteine levels were not correlated with other cardiovascular risk factors.
- Young age, diabetes, and hyperhomocysteinaemia independently predicted vascular procedure failure (P = 0.006).
- Patients with hyperhomocysteinaemia exhibited increased total antioxidant capacity.
Conclusions:
- Hyperhomocysteinaemia is a significant risk factor for vascular procedure failure, particularly in younger patients and those with diabetes.
- The elevated antioxidant capacity in hyperhomocysteinaemic patients warrants further investigation.
- Identifying and treating hyperhomocysteinaemia may offer a therapeutic target for improving prognosis in a specific patient subgroup.
Abstract:
Hyperhomocysteinaemia is an independent risk factor for the early development of arterial disease. Homocysteine and cardiovascular risk factors were assessed in 41 young and 25 older patients with vascular disease. As homocysteine may act by the generation of free radicals, total antioxidant capacity was measured. Hyperhomocysteinaemia was found in 29 per cent of patients but there was no difference between young and older patients. Homocysteine level was unrelated to other cardiovascular risk factors. Young age, diabetes and hyperhomocysteinaemia were independent risk factors for the failure of vascular procedures (P = 0.006). Patients with hyperhomocysteinaemia had raised total antioxidant capacity. The potential of identifying and treating a subgroup of patients with a poor prognosis deserves further study.