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, also known as angina pectoris, is chest pain or pressure, usually due to not enough blood flow to the heart muscle. Angina is usually due to obstruction or spasm of the coronary arteries. Other causes include anemia, abnormal heart rhythms, and heart failure. The main mechanism of coronary artery obstruction is an atherosclerosis.