Ischemia
The word "ischemia" () is from Greek ἴσχαιμος "iskhaimos", "staunching blood" from ἴσχω "iskhο", "keep back, restrain" and αἷμα "haima", "blood".
Coronary ischemia
Coronary artery disease (CAD) occurs when fatty substances get stuck to the walls of coronary arteries, which narrows the arteries and constricts blood flow. This causes a lack of oxygen and blood to the heart, which can result in a myocardial infarction (heart attack). CAD leads to constricted arteries, which leads to a lack of blood flowing through the arteries as well as oxygen, a process called atherosclerosis. Atherosclerosis is the most common cause of coronary ischemia.