(Stroke. 2004;35:1523.)
© 2004 American Heart Association, Inc.
Controversies in Stroke |
omiej Piechowski-Jó
wiak, MDFrom the Department of Neurology, Centre Hospitalier Univ Vaudois, Lausanne, Switzerland.
Correspondence to Julien Bogousslavsky, MD, Cerebrovascular Diseases Service, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland. Email julien.bogousslavsky@chuv.hospvd.ch
Key Words: stroke incidence lipid-lowering therapy statins
An extract of the first 250 words of the full text is provided, because this article has no abstract. |
The burden of stroke is unquestionable in a myriad of aspects. Multiple stroke risk factors are known, and some of them are considered strong and primary while others are considered uncertain and secondary. Among the latter, there is hyperlipidemia. As the acute stroke treatment is costly, the saying that prevention is better than treatment bears a special meaning here. In this discussion, as prosecutors from our bar we stand to plead, "Cholesterol guilty for stroke."
Several epidemiological studies demonstrated a correlation between increased blood total cholesterol levels and risk of myocardial infarction.1,2 The association between cholesterol levels and stroke occurrence is debated in the literature. In the Framingham cohort no connection was found between the levels of cholesterol and the incidence of stroke.1 Nonetheless, in young women, a positive correlation between total cholesterol levels and stroke-related mortality was observed, while in subjects in 6th and 7th decade of age, an inverse correlation between these parameters was found.3 The combined analysis of cohort trials showed no significant association between the increased level of serum cholesterol and stroke rate, except for patients younger than 45 years.4 However, this analysis did not stratify into stroke subgroups and thus a positive association with ischemic stroke might be offset by a negative association with hemorrhagic stroke. This was confirmed in a longitudinal study on men screened for multiple risk factors, as a positive correlation between total cholesterol levels and ischemic stroke risk, and a negative association between cholesterol level and occurrence of all hemorrhagic
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