Nifedipine: its effects on renal hemodynamics and sodium homeostasis in well-compensated alcoholic cirrhosis

Wong, F.; Massie, D.; Hsu, P.; Dudley, F.

Journal of Hepatology 21(1): 64-69

1994


ISSN/ISBN: 0168-8278
PMID: 7963423
DOI: 10.1016/s0168-8278(94)80138-x
Accession: 009096800

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Abstract
Following the administration of 10 mg of nifedipine to 11 patients with well-compensated alcoholic cirrhosis, there was a significant fall in mean arterial blood pressure, accompanied by an increase in heart rate, presumably due to a significant decrease in systemic vascular resistance. Despite the fall in renal perfusion pressure, there was an increase in the effective renal plasma flow and a significant decrease in renal vascular resistance. The glomerular filtration rate was preserved, suggesting that the decrease in renal vascular resistance was due to a preferential decrease in afferent arteriolar tone. There were no significant changes in the filtered sodium load or the tubular reabsorption of sodium and urinary sodium, and urinary volume did not alter significantly. Although the current study indicates that nifedipine can improve the renal circulation in patients with cirrhosis, the significant effects on the systemic circulation suggest that its potential to reverse the intense renal vasoconstriction that can complicate the clinical course of advanced liver disease is unlikely to be of value in the treatment of the hepatorenal syndrome.