Thrombophilic risk factors for symptomatic peripheral arterial disease

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Objective: Peripheral arterial disease (PAD) is a common manifestation of systemic atherosclerosis. Over the last years, several novel mediators relevant to the process of atherogenesis have been identified, but few and conflicting data are available on the possible association with PAD symptoms. The aim of this study was to determine an extended thrombophilic risk profile of patients with symptomatic PAD. Methods: Two hundred eighty patients with symptomatic PAD admitted to the Department of Vascular Surgery of the University of Florence were compared with 280 control subjects without PAD, matched for age and gender. The following metabolic and genetic risk factors were evaluated: lipoprotein(a), homocysteine, antiphospholipid antibodies, plasminogen activator inhibitor-1, factor V Leiden mutation, prothrombin variant, and 5,10-methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism. Results: Multivariate logistic regression analysis, adjusted for traditional cardiovascular risk factors, showed a significant association between PAD symptoms and prothrombin variant, altered levels of homocysteine, lipoprotein(a), plasminogen activator inhibitor-1, and antiphospholipid antibodies. Moreover, the presence of high levels of lipoprotein(a) and another metabolic risk factor raised the likelihood of PAD symptoms (dyslipidemia and elevated lipoprotein[a]: odds ratio [OR], 29; 95% confidence interval [CI], 6.2 to 136.2; P <.0001; hyperhomocysteinemia and elevated lipoprotein[a]: OR, 37.7; 95% CI, 3.7 to 381.5; P <.0001). A significant correlation between the number of altered thrombophilic parameters and the Fontaine stage was observed (R = 0.16; P =. 006). Conclusion: There is an independent association between altered levels of important thrombophilic risk factors and PAD symptoms. The clinical significance of this association needs to be tested in prospective population-based trials. Copyright © 2005 by The Society for Vascular Surgery.




Sofi, F., Lari, B., Rogolino, A., Marcucci, R., Pratesi, G., Dorigo, W., … Prisco, D. (2005). Thrombophilic risk factors for symptomatic peripheral arterial disease. Journal of Vascular Surgery, 41(2), 255–260.

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