Unstable<unk>  is characterized by at least one of the following: # Occurs at rest or minimal exertion and usually lasts more than 20 minutes (if nitroglycerin is not administered) # Being severe (at least Canadian Cardiovascular Society Classification 3) and of new onset (i.e. within 1 month) # Occurs with a crescendo pattern (brought on by less activity, more severe, more prolonged or increased frequency than previously). Fifty percent of people with unstable<unk>  will have evidence of necrosis of the heart's muscular cells based on elevated cardiac serum markers such as creatine kinase isoenzyme (CK)-MB and troponin T or I, and thus have a diagnosis of non-ST elevation myocardial infarction.
complications of Angina
complications of Myocardial infarction
medical cause of Myocardial infarction
medical cause of Chest pain
complications of Arrhythmia
complications of Ventricular tachycardia
symptom of Myocardial infarction
complications of Coronary thrombosis