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  • Title: Plasma alpha natriuretic peptide in cardiac impairment.
    Author: Richards AM, Cleland JG, Tonolo G, McIntyre GD, Leckie BJ, Dargie HJ, Ball SG, Robertson JI.
    Journal: Br Med J (Clin Res Ed); 1986 Aug 16; 293(6544):409-12. PubMed ID: 2943356.
    Abstract:
    Regional plasma alpha human atrial natriuretic peptide concentrations were measured, and their relation to intracardiac pressures assessed, in an unselected series of 45 patients undergoing diagnostic cardiac catheterisation. Arteriovenous gradients in plasma concentrations of alpha human atrial natriuretic peptide were consistent with its cardiac secretion and its clearance by the liver and kidneys. Plasma concentrations of the peptide in the pulmonary artery, aorta, and superior vena cava correlated closely with the mean right atrial and pulmonary arterial pressures, and similar, though weaker, positive relations were seen with the left ventricular end diastolic and pulmonary artery wedge pressures. Concentrations of both atrial natriuretic peptide and renin showed significant inverse relations with serum sodium concentrations. Plasma concentrations of alpha human atrial natriuretic peptide are an additional objective indicator of the severity of haemodynamic compromise in patients with cardiac impairment.
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