In literature, archetypes often appear in the form of. 1  Symbols or motifs. 2  Situations or plot forms. 3  Themes. 4  Animals. 5  Settings or places. 6  Characters.
Variant angina is an extremely rare form of angina pectoris that is caused by a spasm in a coronary artery. Angina pectoris, or angina for short, is chest pain or discomfort that occurs when the heart muscle is not getting enough oxygen-rich blood for a short period of time.nlike other types of angina that usually occur in someone with coronary artery disease (also called CAD or just heart disease), variant angina may occur in people with or without this condition.
Angina is caused by an imbalance between the amount of oxygen supplied to the heart and the amount needed. There are four types of angina: stable angina, unstable angina, variant (Prinzmetal's) angina, and microvascular angina.In all types of angina the pain is caused by the heart muscle becoming short of oxygen.arrowing of the arteries also occurs in unstable angina and often in variant angina. Microvascular angina is caused by spasms within the walls of small arterial blood vessels causing reduced blood flow to the heart muscle.