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Book Chapter

An Electronic Questionnaire for Liver Assessment in Congenital Disorders of Glycosylation (LeQCDG): A Patient-Centered Study

Citation
Marques-da-Silva D, Francisco R, dos Reis Ferreira V, Forbat L, Lagoa R, Videira PA, Witters P, Jaeken J & Cassiman D (2019) An Electronic Questionnaire for Liver Assessment in Congenital Disorders of Glycosylation (LeQCDG): A Patient-Centered Study. In: Morava E, Baumgartner M, Patterson M, Rahman S, Zschocke J & Peters V (eds.) JIMD Reports. 1st ed. JIMD Reports, 44. Berlin: Springer Berlin Heidelberg, pp. 55-64. https://doi.org/10.1007/8904_2018_121

Abstract
Congenital disorders of glycosylation (CDG) are ultra-rare diseases showing a great phenotypic diversity ranging from mono- to multi-organ/multisystem involvement. Liver involvement, mostly nonprogressive, is often reported in CDG patients. The main objectives of this work were (1) to better understand liver involvement in CDG patients through a liver electronic questionnaire targeting CDG families (LeQCDG) and (2) to compare responses from LeQCDG participants with literature review regarding the prevalence of liver disease and the occurrence of liver symptoms in CDG patients. The network of patient advocacy groups, families and professionals (CDG & Allies – PPAIN) developed the LeQCDG by adapting validated published questionnaires. The LeQCDG was approved by an ethics committee, and the recruitment of patients and caregivers proceeded through social media platforms. Participants were asked to report past or present liver-related symptoms (e.g. hepatomegaly, liver fibrosis and cirrhosis) and laboratory results (e.g. biochemical and/or radiological). From 11 December 2016 to 22 January 2017, 155 questionnaires were completed. Liver disease was present in 29.9% of CDG patients. Main symptoms reported included hepatomegaly, increased levels of serum transaminases, fibrosis, steatosis and cirrhosis. The data obtained in this online survey confirm findings from a recent literature review of 25 years of published evidence (r = 0.927, P = 0.02). Our questionnaire collected large amounts of meaningful, clinical and patient-oriented data in a short period of time without geographic limitations. Internet-based approaches are especially relevant in the context of ultra-rare diseases such as CDG.

Keywords
Congenital disorder(s) of glycosylation (CDG); Literature review; Liver; PMM2-CDG; Questionnaire; Rare diseases

StatusPublished
Author(s)Marques-da-Silva, Dorinda; Francisco, Rita; dos Reis Ferreira, Vanessa; Forbat, Liz; Lagoa, Ricardo; Videira, Paula A; Witters, Peter; Jaeken, Jaak; Cassiman, David
FundersAardvark TMC
Title of seriesJIMD Reports
Number in series44
Publication date31/12/2019
Publication date online15/07/2018
URLhttp://hdl.handle.net/1893/27575
PublisherSpringer Berlin Heidelberg
Place of publicationBerlin
ISSN0141-8955
eISSN2192-8312
ISSN of series2192-8304
ISBN978-3-662-58616-7
eISBN978-3-662-58617-4

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