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Homocysteine: an aetiological contributor to peripheral vascular arterial disease
Yew-Ming Kuan1, Anthony E Dear, Michael J Grigg
1Department of Surgery, Monash University, Box Hill Hospital, Australia. ymkuan@ozemail.com.au
Insights
Hyperhomocysteinaemia, a condition affecting 10% of the population, is a significant risk factor for atherosclerosis and peripheral arterial disease. Supplementation with folate, vitamin B6, and B12 can lower homocysteine levels, potentially reducing disease incidence.
Area of Science:
- Vascular Surgery
- Cardiovascular Medicine
- Biochemistry
Background:
- Hyperhomocysteinaemia is increasingly recognized but poorly understood by many surgeons.
- Elevated homocysteine levels are an independent risk factor for atherosclerosis.
- This condition is linked to both coronary and peripheral arterial disease.
Purpose of the Study:
- To elucidate the significance of hyperhomocysteinaemia in surgical patients.
- To highlight the association between hyperhomocysteinaemia and peripheral arterial disease.
- To discuss diagnostic and therapeutic strategies for managing elevated homocysteine.
Main Methods:
- Literature review of studies on hyperhomocysteinaemia and vascular disease.
- Analysis of the role of inherited and acquired factors in elevated homocysteine.
- Evaluation of the impact of vitamin supplementation on homocysteine levels.
Main Results:
- Hyperhomocysteinaemia affects up to 10% of the population.
- It is a significant, independent risk factor for atherosclerosis and peripheral arterial disease.
- Early detection is crucial in patients with premature atherosclerosis.
Conclusions:
- Hyperhomocysteinaemia is a relevant clinical condition for surgeons.
- Management involves addressing inherited or acquired causes, including vitamin deficiencies.
- Folate, vitamin B6, and B12 supplementation can effectively lower homocysteine levels and may mitigate vascular disease progression.
Abstract:
Surgeons are increasingly being exposed to the term 'hyperhomocysteinaemia' but few understand this condition that affects up to 10% of the population, or its pathological sequelae. Hyperhomocysteinaemia has been identified as an important and independent risk factor for atherosclerosis. There is increasing evidence that, in addition to coronary disease, hyperhomocysteinaemia is also associated with an increased risk of developing peripheral arterial disease. Causes of elevated homocysteine levels include inherited enzyme deficiencies and acquired vitamin deficiencies. Detection of hyperhomocysteinaemia is particularly relevant in patients with early onset atherosclerosis. Effective lowering of elevated homocysteine levels is possible with folate, vitamin B6 and B12 supplementation and may reduce the incidence and sequelae of atherosclerotic peripheral arterial disease.