Developed to assist physicians and healthcare providers in the clinical decision making process, the guidelines describe best practice for the diagnosis and treatment of patients with Wilson's disease -- a rare genetic(2) disorder that, if left untreated, is fatal.
Approximately one in 30,000 people worldwide are affected by Wilson's disease -- a condition in which copper is not excreted by the body effectively, leading to excess copper build up, liver failure and damage to the brain. While Wilson's disease may manifest at any age, the majority of patients present between the ages of 5 and 35.
Lead author Professor Peter Ferenci said: "The clinical presentation of Wilson's disease can vary widely, but it must be considered in any patient who presents with a combination of unexplained liver disease and neurological or neuropsychiatric disorders. In the absence of Kayser-Fleischer rings(3) -- which are typical, but not always present -- the guidelines recommend measurement of urinary copper excretion and hepatic parenchymal copper as diagnostic methods of choice. Notably, age alone should not be the basis for eliminating a diagnosis of Wilson's disease."
The CPGs, based on a systematic review of existing literature, provide best practice diagnosis and treatment protocols with an emphasis on:
Clinical presentation and prognosis
Diagnostic strategies (e.g. serum ceruloplasmin, basal 24-hour urinary copper excretion, genetic analysis)
Importance of family screening
Treatment options (e.g. chelating agents, zinc, liver transplantation)
With treatment, prolonged survival has become the norm for Wilson's disease patients. The guidelines recommend chelating agents -- drugs that bind to copper and remove it from the body (D-penicillamine or trientine) -- as the initial treatment for symptomatic patients and that, unless liver transplantation is performed, treatment is maintained for life.
Professor Roderick Houwen added: "Unfortunately, as there are no optimally designed randomized controlled trials conducted in Wilson's disease, there is a lack of high-quality evidence to estimate the relative treatment effects of the available drugs. Our evaluation is mostly based on large case series that have been reported in recent decades, which highlights a clear need to conduct more robust randomized controlled trials to better understand treatment for this rare condition."
Professor Mark Thurz, EASL Secretary General, added: "EASL is dedicated to promoting hepatology research and education to improve the worldwide treatment of liver disease. Its series of Clinical Practice Guidelines aims to promote best practice to drive better clinical outcomes and inform both the scientific community and the wider public of the latest developments in the field. We hope these new Wilson's disease guidelines provide clinicians with the most up-to-date, evidence based methods for the management of affected patients."
The Wilson's disease CPGs will be published in the March issue (Volume 56, No. 3) of the Journal of Hepatology -- EASL's official journal.
EASL is the leading European scientific society involved in promoting research and education in hepatology. EASL attracts the foremost hepatology experts and has an impressive track record in promoting research in liver disease, supporting wider education and promoting changes in European liver policy.
EASL's main focus on education and research is delivered through numerous events and initiatives, including:
The International Liver CongressTM which is the main scientific and professional event in hepatology worldwide
Meetings including Monothematic and Special conferences, Post Graduate courses and other endorsed meetings that take place throughout the year
Clinical and Basic Schools of Hepatology, a series of events covering different aspects in the field of hepatology
Journal of Hepatology published monthly
Participation in a number of policy initiatives at European level
1. Ferenci P, et al (2011) Wilson's disease: EASL Clinical Practice Guidelines. European Association for the Study of the Liver. Available at http://www.easl.eu/_clinical-practice-guideline2. Due to mutations of the ATP7B gene on chromosome 13.
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