South Korean Pitavastatin Heart Failure Study

Inclusion Criteria: 1. Patients who accepted to enter the study by written informed consent 2. Age ≥ 30 years 3. LDL-cholesterol ≥ 70mg/dl 4. Chronic heart failure of : * NYHA class II \~ III * Ischemic etiology * Left ventricular ejection fraction \< 45% * Optimal therapy for chronic heart failure and stable clinical condition over the two weeks. Exclusion Criteria: 1. Patients who participated in other studies 3 months before enrollment 2. Statin treatment within 2 months before enrollment 3. Unstable decompensated heart failure at enrollment 4. Acute coronary syndrome or cerebral vascular disease within 3 months before enrollment 5. Coronary revascularization within 3 months before enrollment or planned at enrollment 6. Any other serious disease or condition which might effect life expectancy such as malignancy, life-threatening infectious disease. 7. Serum creatinine levels \>= 3.0 mg/dl 8. AST or AST levels \>=2.5 times of ULN 9. CK levels \>=2 times of ULN 10. Uncontrolled hypothyroidism : TSH level \>= 2 times of ULN 11. Pregnant or breastfeeding women, women who want to bearing 12. Patients who might to be unsuitable by the decision of investigators