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Cerebral Venous and Sinus Thrombosis and Thrombophilic Mutations in Western Iran: Association With Factor V Leiden
* To whom correspondence should be addressed. E-mail: zrahimi{at}kums.ac.ir.
The present study aimed at investigating the prevalence of factor V Leiden G1691A, prothrombin G20210A, and MTHFR C677T in cerebral venous and sinus thrombosis (CVST) patients and their possible association with CVST in Western Iran. A total of 24 CVST patients with the mean age of 37.1 ± 11.7 years and 100 sex- and age-matched healthy individuals from Kermanshah Province of Iran with ethnic background of Kurd were studied for factor V Leiden G1691A, prothrombin G20210A and MTHFR C677T by PCR-RFLP method using Mnl I, Hind III, and Hinf I restriction enzymes, respectively. Prevalence of factor V Leiden was 16.7% in patients and 2% in control group. A significant association was found between factor V Leiden mutation and CVST with odds ratio (OR) of 9.8 (95% confidence intervals [CI] 1.68-57.2, P = .01). No prothrombin G20210A was found among patients. In patients, MTHFR C677T tended to be higher (58.3%) compared to control (44%), OR of 1.8 (95% CI 0.73-4.5, P = .2). Our study for the first time has determined the prevalence of inherited thrombophilia in a homogenous ethnic group of CVST patients and suggests that factor V Leiden, and not the prothrombin gene mutation is a risk factor for CVST in Western Iran.
First published on August 23, 2009 |
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