i. Compromised cardiac function based on baseline LVEF <55% measured by echocardiography or MUGA or moderate left sided valvular heart disease (moderate mitral or aortic regurgitation or stenosis) ii. Planned cumulative doxorubicin dose equivalent 200mg/m² or more iii. Prior anthracycline therapy at any cumulative dose or prior chest/mediastinal radiation therapy iv. Any one of hypertension, smoking, obesity (BMI≥30), history of cardiomyopathy or heart failure but with recovered LVEF to ≥ 50%