Angina pectoris (Table 4) is an acute coronary syndrome associated with transient ischemia to the myocardium. Hypoxia (and at times anoxia) results from diseases and conditions which lead to atherosclerosis and obstruction of coronary arteries by fatty deposits that limits and/or impairs coronary blood flow. Precipitating factors that increase cardiac oxygen demand in the presence of decreased perfusion of the myocardium include physical exertion, emotional stress, cold, recent meal. Unstable angina pectoris may occur spontaneously at rest.
Table 4. Angina Pectoris.
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