What is the definition of ischemic heart disease?

Ischemic heart disease, also known as coronary artery disease, is indeed defined as a condition caused by the narrowing or blockage of the coronary arteries, which are responsible for supplying blood to the heart muscle. When these arteries are narrowed due to atherosclerosis or other factors, the blood flow to the heart can be compromised, leading to insufficient oxygen reaching the heart tissue. This results in symptoms such as chest pain (angina) and can ultimately lead to more severe conditions like heart attacks.

In contrast, the other options describe different aspects of heart issues. A structural defect refers to abnormalities in the heart's walls or chambers, which relate to congenital or acquired heart conditions. An electrical disorder centers around issues with the heart's electrical system that can cause arrhythmias, affecting heart rhythm rather than blood flow. Inflammation of the pericardium pertains to pericarditis, which is an inflammation of the sac surrounding the heart. Understanding these distinctions is crucial for a comprehensive perspective on cardiac health.