Clinical relevance of statins: instituting treatment early in acute coronary syndrome patients.
The efficacy of statins in lowering the total and low-density lipoprotein cholesterol and reducing the risk of cardiac events is now well established. The secondary prevention studies started treatment several months after the acute event. However, the greatest risk of recurrence is shortly after the index event. Recent evidence from small-scale clinical trials shows that standard doses of statins can be both safe and effective when given early after an acute coronary event, including early after thrombolytic therapy for myocardial infarction. Angiographic studies have shown beneficial effects of pravastatin on coronary stenosis when initiated after a coronary event. While none of these studies have been powered to demonstrate an effect on outcome, each has shown a reduction in major cardiovascular events. Two large observational studies have shown a reduction in 6- and 12-month risk-adjusted mortality among post-MI patients treated early with statins. Large-scale trials of all statins are now in progress to evaluate further the efficacy of early initiation of statin therapy in acute coronary syndromes. The largest of these is the Australian Pravastatin Acute Coronary Treatment (PACT) study, which will compare early outcomes in patients treated with pravastatin versus placebo prescribed within the first 24 h of an acute coronary event.[1]References
- Clinical relevance of statins: instituting treatment early in acute coronary syndrome patients. Thompson, P.L. Atherosclerosis. Supplements. (2001) [Pubmed]
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