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  • Title: Renal retention of sodium in cirrhosis and fulminant hepatic failure.
    Author: Wilkinson SP, Moodie H, Alam A, Williams R.
    Journal: Postgrad Med J; 1975 Aug; 51(598):527-31. PubMed ID: 1234336.
    Abstract:
    Abnormal renal retention of sodium is a characteristic finding in both cirrhosis and fulminant hepatic failure. In cirrhosis the pathogenesis varies according to the level of renal perfusion. When this is normal, hyperaldosteronism is probably the most important factor and this results from an increased release of renin by the kidney. The stimulus to the latter may be a shunting of blood from the outer cortical to juxtamedullary nephrons, although there is no direct relationship between the changes in intrarenal blood flow distribution and sodium excretion. The patients with hyperaldosteronism fail to escape from its sodium retaining effects because of impaired production of natriuretic hormone, which in turn is the result of a failure to expand the ‘effective’ extracellular fluid volume, because of ascites formation. In fulminant hepatic failure the site in the nephron of abnormal sodium retention appears to be predominantly the proximal tubule, but its cause is obscure.
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