Angina pectoris is Latin and literally means "chest pain"
Typical signs of angina are pains in your chest that are felt as nagging, constricting, oppressive, or sometimes burning. They are the consequence of a shortage of oxygen-rich blood (ischemia) of the heart muscle. The pain can also spread, for instance, into your arm or lower jaw.
In most cases, the cause of angina is coronary heart disease, whereby calcifications lead to constrictions of the coronary vessels. In turn, the heart muscle cannot be supplied with enough oxygen-rich blood.
We differentiate between the following two types of angina:
The typical pain of stable angina arises due to a catalyst and vanishes within a few minutes either by taking medication (e.g. nitroglycerin spray) or relaxing. Catalysts of stable angina include physical activity (exertional angina), psychological stress, cold weather, or large meals.
When what were earlier lighter cases of angina become longer and more intense or when the minimum triggering level decreases or when you experience angina for the first time, then we are dealing with unstable angina, which is also the case when you feel pain even while relaxing.