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Pruritus in chronic liver disease: mechanisms and treatment. |
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Pruritus
in chronic liver disease: mechanisms and treatment.
Bergasa
NV.
Curr Gastroenterol Rep.
2004 Feb;6(1):10-6.
Division
of Digestive and Liver Diseases, Columbia University College of Physicians and
Surgeons, 630 West 168th Street, P&S 10- 508, New York, NY 10032, USA.
E-mail:
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Pruritus is a complication of liver disease.
It can have a marked negative impact on quality of life; when intractable, it is
an indication for liver transplantation. The cause of this type of pruritus is
unknown. There is, however, evidence to suggest that the pruritus associated
with liver disease is mediated, at least in part, by endogenous opioids. A
central mechanism has been proposed. Therapeutic interventions have concentrated
on the removal of presumed and unknown pruritogens from the circulation, hepatic
enzyme induction, and, over the past decade, opiate antagonists, the first specific treatment for the pruritus of cholestasis.
Other pharmacologic interventions that change neurotransmission have recently
been reported to decrease the pruritus in patients with liver disease, as has a
newly developed system that applies albumin-based dialysis. These interventions
are promising, but they must be tested in properly controlled behavioral
trials.
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