Atorvastatin pretreatment diminishes the levels of myocardial ischemia markers early after CABG operation: an observational study
Abstract (provisional)
Background
Statin pretreatment has been associated with a decrease in myocardial ischemia markers after various procedures and cardiovascular events. This study examined the potential beneficial effects of preoperative atorvastatin treatment among patients undergoing on-pump CABG operation.
Methods
Twenty patients that had received atorvastatin treatment for at least 15 days prior to the operation and 20 patients who had not received any antihyperlipidemic agent prior to surgery were included in this study. CK-MB and troponin I levels were measured at baseline and 24 hours after the operation. Perioperative variables were also recorded.
Results
Twenty-four hours after the operation, troponin I and CK-MB levels were significantly lower in the atorvastatin group: for CK-MB levels, 12.94.3 versus 18.77.4 ng/ml, p=0.004; for troponin I levels, 1.70.3 versus 2.70.7 ng/ml, p<0.001. In addition, atorvastatin use was associated with a decrease in the duration of ICU stay.
Conclusions
Preoperative atorvastatin treatment results in significant reductions in the levels of myocardial injury markers early after on-pump CABG operation, suggesting a reduction in perioperative ischemia in this group of patients. Further studies are needed to elucidate the mechanisms of these potential benefits of statin pretreatment.
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