Ischemic heart disease (IHD) also known as coronary artery disease is a condition of the heart in which there is a reduction in the blood flow to the heart muscle. This occurs due to an accumulation of plaque in the arteries of the heart. Sustained obstruction of the blood flow to the heart results in ischemia and myocardial infarction. This leads to damage to the heart and eventual death, if not resolved. Ischemic heart disease can occur in individuals of any age group, but is more common in older adults. It is a leading cause of death in the world today. Nearly half of the cases of IHD have a genetic influence. Smoking and obesity are other risk factors. Chest pain is a common symptom of IHD. Symptoms are often not present and the first sign is a heart attack in many cases. Revascularization, particularly hybrid coronary revascularization, angioplasty and coronary artery bypass grafting are certain procedures for treating acute coronary syndrome. Anti-platelet therapy, calcium channel blockers and beta-blockers, along with lifestyle changes may be recommended for the long-term control of the disease. This book contains some path-breaking studies in the diagnosis and treatment of ischemic heart disease. It outlines the causes and symptoms of ischemic heart disease in detail. A number of latest researches have been included to keep the readers up-to-date with the diverse aspects of this medical condition.