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  • Title: Urinary excretion of catecholamines and their metabolites in patients with renovascular hypertension.
    Author: Januszewicz W, Wocial B.
    Journal: Jpn Heart J; 1978 Jul; 19(4):468-78. PubMed ID: 731871.
    Abstract:
    Urinary excretion of catecholamines, vanillylmandelic acid, and methoxycatecholamines was studied in 50 patients with renovascular hypertension. The urinary excretion of noradrenaline was increased in patients with elevated peripheral plasma renin activity and in those with elevated renal vein renin ratio in comparison with the patients with normal plasma renin activity. The urinary excretion of dopamine was diminished and vanillylmandelic acid increased in the entire group of patients with renovascular hypertension. In the investigated group, following sodium restriction, the mean urinary excretion of noradrenaline increased while dopamine excretion decreased. These results suggest that the increased sympathetic activity may play a role in the pathogenesis of renovascular hypertension.
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