Homocysteine and early re-stenosis after carotid eversion endarterectomy
A Assadian1, R Rotter, O Assadian
1Department of General and Vascular Surgery, Wilhelminenspital Vienna, Austria. afshin_assadian@yahoo.com
Summary
This study found no link between homocysteine (Hcy) levels and early re-stenosis after carotid endarterectomy. Higher creatinine and HbA1C were associated with re-stenosis, not Hcy.
Area of Science:
- Cardiovascular Surgery
- Vascular Medicine
- Biochemistry
Background:
- Homocysteine (Hcy) is implicated in intimal hyperplasia and arterial thrombosis.
- Understanding Hcy's role in post-surgical vascular events is crucial.
Purpose of the Study:
- To investigate the association between plasma homocysteine levels and early re-stenosis after carotid eversion endarterectomy.
Main Methods:
- 363 patients undergoing carotid eversion endarterectomy were assessed for preoperative homocysteine and risk factors.
- Clinical, homocysteine, and duplex follow-up was conducted up to 36 months post-surgery.
- Angiography was used for intraoperative assessment.
Main Results:
- Early re-stenosis (50-69% or >70%) occurred in 5.5% of patients.
- Higher serum creatinine and HbA1C levels were significantly associated with re-stenosis, occlusion, or stroke.
- No significant association was found between homocysteine levels and early re-stenosis, occlusion, or stroke.
Conclusions:
- Despite homocysteine being a known risk factor for atherothrombosis, this study found no association with early re-stenosis after carotid eversion endarterectomy.
- Creatinine and HbA1C may be more relevant predictors of adverse outcomes in this patient group.
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