Venous thrombosis associated with HMG-CoA reductase inhibitors

Giuseppe Lippi, Emmanuel J Favaloro, Fabian Sanchis-Gomar

Research output: Contribution to journalReview articlepeer-review

10 Citations (Scopus)


Among the various hypolipidemic drugs, 3-hydroxy-3-methyl-glutaryl-coenzyme A (HMG-CoA) reductase inhibitors (also known as "statins") belong to a heterogeneous class of compounds, sharing an identical hypocholesterolemic effect that develops through direct inhibition of a rate-limiting step in endogenous cholesterol synthesis. Their mechanism of action entails competitive inhibition of HMG-CoA reductase. Several lines of evidence suggest that the pleiotropic effects of statins may also play a role in prevention of venous thrombosis, wherein hypercholesterolemic patients are characterized by enhanced thrombin generation, increased susceptibility to endothelial dysfunction and platelet hyperreactivity, so that limiting or counteracting the burden of one or more of these mechanisms would provide an effective means of prophylaxis. Plausible biological links can also be found between statin therapy and reduction of thrombotic risk, mainly targeting immune system, blood coagulation, endothelium, lipid metabolism, and inflammation. The earlier JUPITER (Justification for the Use of Statins in Primary Prevention) trial provided appealing evidence that the risk of venous thrombosis may be lowered by statins. The results of the following studies and those of recent meta-analyses have, however, questioned this assumption. Currently, it seems thereby cautious to conclude that the use of statins as part of the approach used for preventing venous thromboembolism appears unwarranted. This is due to the existence of controversial clinical evidence, to the large number of patients who would need to be treated to prevent one case of venous thrombosis, as well as to the tangible risk of side effects. More randomized and the larger studies are needed before definitive conclusions can be drawn.

Original languageEnglish
Pages (from-to)515-32
Number of pages18
JournalSeminars in Thrombosis and Hemostasis
Issue number5
Publication statusPublished - Jul 2013


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