[Endocrine regulators of calcium metabolism (calcitonin and parathormone) in patients with myocardial infarction during various periods of observation].

The purpose of the study was a comprehensive analysis of the level of calcitonin and parathormone in patients with acute myocardial infarction (MI) and postinfarction cardiosclerosis as compared to similar data on healthy persons and coronary patients without a previous history of myocardial infarction. A total of 122 persons were examined using a radioimmunoassay and biochemical methods. The data obtained demonstrated an increase in the level of circulating calcitonin in patients with chronic CHD including postinfarction cardiosclerosis. The phasing of changes was revealed in the patients with acute MI: hypercalcitoninemia and hyperparathyrinemia on the 1st and 27-th-30th day of disease. Hypocalcemia was noted on the 14th-16th day of disease in the presence of normalization of the level of both hormones.