Ischemic cardiomyopathy undergoing coronary artery bypass surgery

Inclusion Criteria:

1. Patients who are clinically diagnosed with ischemic cardiomyopathy and receive CABG
2. Patients with a left ventricular ejection fraction of 40% or less by cardiac ultrasonography within 4 weeks before obtaining consent
3. Others

Exclusion Criteria:

1. Patients who have a combination of cardiovascular disease such as severe organic valvular disease or aortic aneurysm determined by investigator or co-investigator to affect clinical trial procedure
2. Patients whose participation in a clinical trial is considered inappropriate at the discretion of the investigator or co-investigator
3. Others