What is the term for transient chest discomfort caused by temporary blockage of blood flow to the heart muscle?

The term that describes transient chest discomfort caused by a temporary blockage of blood flow to the heart muscle is angina pectoris. This condition occurs when the heart muscle does not receive enough oxygen-rich blood, often due to narrowed coronary arteries, leading to pain or discomfort that is typically triggered by physical exertion or emotional stress. The discomfort tends to lessen with rest or the administration of nitroglycerin, as these actions improve blood flow to the heart.

In contrast, myocardial infarction refers to a complete blockage of blood flow that can result in permanent damage to the heart muscle. Cardiac arrest describes a sudden loss of heart function, while heartburn is related to gastrointestinal issues rather than cardiac conditions. Understanding these distinctions emphasizes the transient nature and specific causes of angina pectoris.