• J. Neurol. Sci. · Sep 2008

    Homocysteine, folate and vitamin B(12) in puerperal cerebral venous thrombosis.

    • Dindagur Nagaraja, Mohan Leslie Noone, Venkata Pinnelli Bharatkumar, and Rita Christopher.
    • Department of Neurology, National Institute of Mental Health and Neuro Sciences, Bangalore 560029, India. dnn@nimhans.kar.nic.in
    • J. Neurol. Sci. 2008 Sep 15; 272 (1-2): 43-7.

    Background And ObjectiveHyperhomocysteinemia (hyper-Hcy) is a known risk factor for venous thrombosis, but few studies document the risk in puerperal cerebral venous thrombosis (CVT). Nutritional folate and vitamin B(12) deficiency can cause hyper-Hcy and pregnancy may contribute to this deficiency. We studied the association of plasma total homocysteine (tHcy), folate and vitamin B(12) levels with puerperal CVT through a case-control study.MethodsSixty women with puerperal CVT and 64 healthy puerperal controls were recruited. Plasma fasting tHcy was estimated by high pressure liquid chromatography using coulometric electrochemical detection. Vitamin B(12) and folate were measured by radioimmunoassay. Risk of puerperal CVT was estimated for each of the three variables.ResultsAdjusted odds ratio for the risk of puerperal CVT with hyper-Hcy (>90th percentile) was 10.8 (95% CI: 4.0-29.4; adjusted for vitamin B(12) and folate levels). Low folate and vitamin B(12) levels (<10th percentile) did not increase the risk for puerperal CVT. There was a significant inverse correlation between folate and tHcy levels (rho=-0.471, p<0.001).ConclusionsHyperhomocysteinemia is associated with an increased risk of puerperal CVT occurring in Indian women and low folate levels contribute significantly to hyper-Hcy. Regular antenatal folate and vitamin B(12) supplementation is likely to lower puerperal tHcy levels, but its clinical benefit needs to be tested by large therapeutic trials.

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