What does angina pectoris refer to?

Angina pectoris refers to chest pain or discomfort that occurs when the heart muscle does not receive enough blood and oxygen. This inadequate blood flow is most commonly due to narrowed or blocked coronary arteries, which are often a result of coronary artery disease. When the heart requires more oxygen than is available, such as during physical activity or emotional stress, this can lead to the characteristic pain or discomfort in the chest.

This condition is typically described as a feeling of pressure, squeezing, or fullness in the chest, and it can sometimes radiate to the shoulders, neck, arms, back, teeth, or jaw. It serves as a warning sign that the heart is under stress and indicates that the underlying issue of reduced blood flow needs to be addressed. Understanding angina is crucial for recognizing the potential for more serious heart conditions, such as a heart attack, which can occur if blood flow is significantly compromised.