Suggested guidelines for the diagnosis and management of urea cycle disorders: First revision
Top Cited Papers
- 14 April 2019
- journal article
- conference paper
- Published by Wiley in Journal of Inherited Metabolic Disease
- Vol. 42 (6), 1192-1230
- https://doi.org/10.1002/jimd.12100
Abstract
In 2012 we published guidelines summarizing and evaluating late 2011 evidence for diagnosis and therapy of urea cycle disorders (UCDs). With 1:35,000 estimated incidence, UCDs cause hyperammonemia of neonatal (~50%) or late onset that can lead to intellectual disability or death, even while effective therapies do exist. In the 7 years that have elapsed since the first guideline was published, abundant novel information has accumulated, experience on newborn screening for some UCDs has widened, a novel hyperammonemia‐causing genetic disorder has been reported, glycerol phenylbutyrate has been introduced as a treatment, and novel promising therapeutic avenues (including gene therapy) have been opened. Several factors including the impact of the first edition of these guidelines (frequently read and quoted) may have increased awareness among health professionals and patient families. However, under‐recognition and delayed diagnosis of UCDs still appear widespread. It was therefore necessary to revise the original guidelines to ensure an up‐to‐date frame of reference for professionals and patients as well as for awareness campaigns. This was accomplished by keeping the original spirit of providing a trans‐European consensus based on robust evidence (scored with GRADE methodology), involving professionals on UCDs from nine countries in preparing this consensus. We believe this revised guideline, which has been reviewed by several societies that are involved in the management of UCDs, will have a positive impact on the outcomes of patients by establishing common standards, and spreading and harmonising good practices. It may also promote the identification of knowledge voids to be filled by future research. Take‐home message This is the first revision of the urea cycle disorders guideline after extensive revision of the previous work from 2012, this time developed based on GRADE methodology.Keywords
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