Angina Definition

Definition: Angina is chest pain or discomfort that occurs when an area of the heart is deprived of oxygen. It is typically described as a crushing or squeezing sensation in the chest and may radiate to the jaw, shoulders, arm or back. It is usually a symptom of underlying heart disease, such as coronary artery disease.

Types of Angina

There are three distinct types of angina: stable angina, unstable angina and variant (prinzmetal's) angina.

Stable Angina: The most common form of angina occurs when the heart is working harder than usual. A person can predict when it may happen, for example, during certain activities. It is usually relieved with rest or with angina medications.

Unstable Angina: Unlike stable angina, unstable angina does not follow a predictable pattern. It can happen during strenuous activity or at rest and isn't always relieved with rest and medication. It is a serious condition and may be indicative of an impeding heart attack.

Prinzmetal's or Variant Angina: This rarest form of angina usually occurs at rest during sleeping hours. It is usually easily treated with medication.

Pronunciation: [an-JI-nuh] or [AN-ji-nuh]

Also Known As: Angina Pectoris