Serum amyloid A concentrations during the course of acute ischaemic heart disease.

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Abstract
Serum amyloid A concentrations were determined in serial serum samples of 41 patients with confirmed acute myocardial infarction (10 with acute ischaemia and two with myocarditis). A sharp increase in serum amyloid A concentration was observed early at onset of infarct; it peaked on the third day (up to 2200 fold of normal values) and declined towards normal during the following days, if no complications occurred. Different patterns were observed in patients with acute ischaemia or myocarditis. Although serum amyloid A is not a specific marker, it may, because of its high sensitivity and characteristic patterns of change, represent an additional useful biochemical variable in the diagnosis, follow up, and prognosis of acute ischaemic heart disease.