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  • Title: Mechanism of polyuria and natriuresis associated with paroxysmal supraventricular tachycardia.
    Author: Tsai RC, Yamaji T, Ishibashi M, Takaku F, Yeh SJ, Lee YS, Hung JS, Wu D.
    Journal: Jpn Heart J; 1987 Mar; 28(2):203-9. PubMed ID: 2955143.
    Abstract:
    Changes in plasma levels of atrial natriuretic peptide (ANP) and arginine vasopressin (AVP) were studied in 8 patients during a 30 min period of induced supraventricular tachycardia (SVT). The mean plasma ANP concentration increased immediately after the onset of SVT, peaked at 30 min and gradually returned to the control level. The mean plasma AVP concentration, on the other hand, was suppressed during SVT and rebounded above the control level in the post-SVT period. In 4 patients, SVT was associated with polyuria and natriuresis. The mean urine volume in these patients increased to 580% of the control and the mean urinary sodium excretion to 278% of the control, respectively. It was concluded that both a stimulation of ANP secretion and an inhibition of AVP release, elicited by an increase in atrial pressure, may be responsible for polyuria and natriuresis associated with SVT.
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