Sudden Ischemic Cardiac Death: The Clinical Approach
Sudden ischemic cardiac death (SICD) is a collective, descriptive term for unexpected, natural cardiac death occurring as a result of some of the consequences of either acute myocardial ischemia and necrosis or of post-infarction scarring, hypertrophy and cardiac failure. It is responsible for about 85% of sudden death cases in adults; about 50% of cases occur in individuals without known ischemic heart disease (IHD), and the other 50% occur in patients with known IHD [about 75% with history of myocardial infarction (MI) and about 50% with history of heart failure]. The incidence of SICD increases markedly in the successive classes of the New York Heart Association (NYHA) functional classification of symptoms, but the percentage of cardiac deaths represented by SICD is, on average, about 50% in each of the four classes.
KeywordsHeart Rate Variability Ischemic Heart Disease Acute Ischemia Acute Myocardial Ischemia Fatal Arrhythmia
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