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  • Title: Plasma levels of atrial natriuretic peptide and hemodynamic function in cardiac disease.
    Author: Morici ML, Di Marco A, Traina M, Hoffmann E.
    Journal: Int J Cardiol; 1993 Nov; 42(1):15-20. PubMed ID: 8112901.
    Abstract:
    Plasma concentrations of atrial natriuretic peptide were measured in eight patients with cardiac disease but normal resting right atrial pressure, during cardiac catheterization. No patient had clinical evidence of overt heart failure. An increase in peptide concentrations was observed between the aorta or the peripheral vein and the pulmonary artery. A linear relation was found between peripheral vein and pulmonary artery peptide concentration. Mean pulmonary artery and capillary wedge pressure also correlated with the peptide levels. No correlation was observed between mean right atrial pressure and peptide concentration. These findings demonstrate that atrial natriuretic peptide release, even in the absence of cardiac failure, seems at least partly regulated by left atrial pressure. Finally, peripheral levels reflect the central concentrations of atrial natriuretic peptide.
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