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  • Title: Possible role of renal prostaglandin E2 in natriuresis associated with supraventricular tachycardia.
    Author: Imanishi M, Fujii T, Kojima S, Kimura G, Ohe T, Akabane S, Matsushima Y, Kawamura M, Shimomura K, Kuramochi M.
    Journal: Prostaglandins; 1990 May; 39(5):559-68. PubMed ID: 2141177.
    Abstract:
    We investigated the possible role of renal prostaglandin (PG) E2 in natriuresis associated with supraventricular tachycardia (SVT). In five female patients with paroxysmal tachycardia, SVT was artificially induced and then stopped 60 min later. Before, during, and after SVT, plasma levels of arginine vasopressin and atrial natriuretic peptide (ANP) and the urinary excretion of sodium and PGE2 were measured. Polyuria was observed during SVT. However, natriuresis did not occur until immediately after the termination of SVT. During SVT, the plasma levels of arginine vasopressin tended to decrease. When SVT was terminated, the vasopressin levels increased significantly (p less than 0.01). Urinary excretion of PGE2 tended to decrease during SVT and then increased significantly (p less than 0.01) after SVT ended. Urinary excretion of sodium was correlated (r = 0.699, p less than 0.001) with the urinary excretion of PGE2. Plasma ANP increased during SVT, but there was no correlation with urinary sodium excretion. These results suggest that renal PGE2, the biosynthesis of which may be stimulated by a increase in plasma vasopressin, is an important factor contributing to the natriuresis observed after the end of SVT.
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