Effect of 80-mg Atorvastatin on Myocardial Edema

The purpose of this study is to determine whether atorvastatin 80mg can reduce the development of myocardial edema following coronary artery bypass surgery. This study also want to determine: 1. whether atorvastatin 80mg can influence Follistatin-like 1 (FSTL1) plasma level following bypass surgery? 2. whether there is correlation between myocardial edema and FSTL1 plasma level? 3. the efficacy of atorvastatin 80mg compared to atorvastatin 10mg in reducing hs-CRP (high sensitive-C reactive protein) and MDA (malondialdehyde) plasma level following bypass surgery? 4. the efficacy of atorvastatin 80mg compared to atorvastatin 10mg in raising PKA and PKB plasma level following bypass surgery?