Angina Pectoris

A condition characterized by recurrent episodes of distressing chest pain resulting from ischemia, i.e. discrepancy between oxygen consumption and oxygen supply to the heart at a given moment. The main reason for Angina Pectoris is occlusion of a Coronary artery (artery of the heart) by an Atherosclerotic plaque, but other cases are also possible, where pains are due to a spasm of a Coronary artery caused by contraction of the smooth muscle in its walls.. At early stages of the disease, the pain appears mainly after strain or excitement accompanied by pulse acceleration. In more advanced stages, pains can appear after slight efforts or even at rest.