title: Cerebral vein thrombosis and mild hyperhomocysteinemia: three new cases.
abstract: Mild hyperhomocysteinemia is an established risk factor for deep vein thrombosis. We report three patients with cerebral vein thrombosis (CVT) in which the only risk factor we were able to identify was increased blood homocysteine levels and the C677T polymorphism in both alleles of the methylene tetrahydrofolate reductase MTHFR gene. We suggest that hyperhomocysteinemia should also be a risk factor for CVT. Since this condition can be effectively and safely corrected by drugs, we suggest that homocysteine levels should be routinely determined in patients with idiopatic CVT, and even mildly increased levels corrected pharmacologically, in the hope of reducing the risks associated with this condition.
authors.affiliation: Carlo Besta Neurological Institute, Via Celoria 11, I-20133 Milan, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Rigamonti
authors.forename: M R
authors.initials: MR
authors.lastname: Carriero
authors.forename: G
authors.initials: G
authors.lastname: Boncoraglio
authors.forename: M
authors.initials: M
authors.lastname: Leone
authors.forename: G
authors.initials: G
authors.lastname: Bussone
mesh_terms: D000328:Adult; D000483:Alleles; D003392:Cranial Sinuses / Q000000981:diagnostic imaging / Q000503:physiopathology; D005260:Female; D006801:Humans; D020138:Hyperhomocysteinemia / Q000150:complications*; D020767:Intracranial Thrombosis / Q000150:complications* / Q000235:genetics / Q000378:metabolism / Q000503:physiopathology; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008297:Male; D042965:Methylenetetrahydrofolate Reductase (NADPH2); D000587:Oxidoreductases Acting on CH-NH Group Donors / Q000235:genetics / Q000378:metabolism; D017354:Point Mutation; D011110:Polymorphism, Genetic; D011859:Radiography; D012307:Risk Factors; D020246:Venous Thrombosis
chemical_list: D000587:Oxidoreductases Acting on CH-NH Group Donors; D042965:Methylenetetrahydrofolate Reductase (NADPH2)