Also known as Angina Pectoris, Acute Coronary Syndrome, Microvascular Angina, Prinzmetal’s Angina, Stable Angina, Unstable Angina, Variant Angina, Vasospastic Angina, Cardiac Syndrome X.

Angina pectoris is Latin and literally means "chest pain".

Angina is chest pain or discomfort that occurs if an area of your heart muscle does not get enough oxygen-rich blood. It is a common symptom of ischemic heart disease, which limits or cuts off blood flow to the heart. In most cases, the cause of angina is coronary heart disease, whereby calcifications lead to constrictions of the coronary vessels.

It can feel like a heart attack, with pressure or squeezing in your chest. It’s sometimes called angina pectoris or ischemic chest pain. It's a symptom of heart disease, and it happens when something blocks your arteries or there's not enough blood flow in the arteries that bring oxygen-rich blood to your heart.