Short-Term, High-Dose Atorvastatin Pretreatment to Prevent Contrast-Induced Nephropathy in Patients With Acute Coronary Syndromes Undergoing Percutaneous Coronary Intervention (from the ARMYDA-CIN [Atorvastatin for Reduction of MYocardial Damage during Angioplasty Contrast-Induced Nephropathy] Trial