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British Journal of Radiology (1975) 48, 539-544
© 1975 British Institute of Radiology
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The British Journal of Radiology, Vol 48, Issue 571 539-544, Copyright © 1975 by British Institute of Radiology

ARTICLES

Prolonged drip-infusion cholangiography

WA Fuchs and R Preisig

Previous experimenttal work in animals has shown that the hpatic excretion of iodipamide and ioglycamide is subject to a transport maximum (TM). Doses in excess of this TM are largely excreted in the urine. In the present study the TM for man was estimated in three subjects with indwelling T-tubes: figures of 19-23 mg/minute for ioglycamide were obtained. It was thought that prolonged administration of contrast at levels slightly above the TM might have advantages in patients with impaired liver function. In obstruction the gradual excretion of contrast could improve the chances of filling the ducts completely, while in hepato-cellular disease the gall bladder might have time to concentrate the contrast. Ioglycamide was therefore given by slow overnight infusion, equivalent to 35 mg/minute, to patients in whom standard cholangiography had been unsuccessful. The overall success rate was 75 per cent with similar improvement in obstructive and hepatocellular disease.




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