Evaluation of the concentration of atrial natriuretic peptide, angiotensin P, renin activity in the blood of the coronary sinus and aorta in 18 patients with IHD and hypertrophy of the left ventricle during development of induced ischemia revealed that in left ventricular hypertrophy secretion of atrial natriuretic peptide by the myocardium is reduced. The level of this reduction depends on the kind of hypertrophy. Dilatation of the left ventricle cavity furthers exhaustion of the secretory function of the ischemic myocardium.
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