Plasma atrial natriuretic polypeptide and polyuria during paroxysmal tachycardia in Wolff-Parkinson-White syndrome patients.
The human atrial natriuretic polypeptide (hANP) concentration in plasma was measured during paroxysmal supraventricular tachycardia provoked in 2 patients with Wolff-Parkinson-White syndrome. A 10- to 20-fold increase in plasma hANP concentration was observed during the tachycardia: from 12 to 291 pg/ml in 1 case and from 14 to 174 pg/ml in the other. Although polyuria was associated with the tachycardia, urinary sodium excretion as well as urinary osmolality were decreased. The urinary arginine vasopressin was appreciably decreased during the tachycardia. These results suggest that hANP released by paroxysmal tachycardia might not act as a natriuretic factor in this range of plasma concentration. Polyuria during paroxysmal tachycardia was attributed mainly to the inhibition of arginine vasopressin release.
D000328:Adult; D001127:Arginine Vasopressin / Q000097:blood / Q000652:urine; D009320:Atrial Natriuretic Factor / Q000097:blood*; D004558:Electric Stimulation; D005260:Female; D006321:Heart / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011141:Polyuria / Q000209:etiology*; D013614:Tachycardia, Paroxysmal / Q000097:blood / Q000209:etiology / Q000503:physiopathology*; D014927:Wolff-Parkinson-White Syndrome / Q000097:blood / Q000503:physiopathology*
D001127:Arginine Vasopressin; D009320:Atrial Natriuretic Factor