Classification.
According to its clinical presentation,
ischemic heart disease is categorized as chronic stable
or unstable angina pectoris and/or acute coronary syn-
drome (ACS), including acute myocardial infarction. Severity of chronic stable angina pectoris is classified according to the Canadian Cardiovascular Society . Unstable angina pectoris is a clinical syndrome, which is defined by one of the following features: severe chest pain of new onset, pain at rest or minimal exertion, or pain with crescendo pattern. Unstable angina pectoris is classified according to Braunwald . Unstable angina pectoris is part of ACS.
Risk Assessment. When approaching a patient with sus-
pected coronary artery disease the risk for coronary
artery disease should be assessed according to the num-
ber of cardiovascular risk factors present and through
careful history taking. In a second step, the risk of a rup-
tured plaque as the cause of the symptoms should be
evaluated. A ruptured plaque often results in ACS. For
prognostic reasons, ACS needs to be treatedwith greater
urgency than chronic stable angina pectoris.
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