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How to detect late-onset inborn errors of metabolism in patients with movement disorders - A modern diagnostic approach

Koens, Lisette H ; de Vries, Jeroen J ; Vansenne, Fleur ; de Koning, Tom J LU and Tijssen, Marina A J (2021) In Parkinsonism & Related Disorders 85. p.124-132
Abstract

We propose a modern approach to assist clinicians to recognize and diagnose inborn errors of metabolism (IEMs) in adolescents and adults that present with a movement disorder. IEMs presenting in adults are still largely unexplored. These disorders receive little attention in neurological training and daily practice, and are considered complicated by many neurologists. Adult-onset presentations of IEMs differ from childhood-onset phenotypes, which may lead to considerable diagnostic delay. The identification of adult-onset phenotypes at the earliest stage of the disease is important, since early treatment may prevent or lessen further brain damage. Our approach is based on a systematic review of all papers that concerned movement... (More)

We propose a modern approach to assist clinicians to recognize and diagnose inborn errors of metabolism (IEMs) in adolescents and adults that present with a movement disorder. IEMs presenting in adults are still largely unexplored. These disorders receive little attention in neurological training and daily practice, and are considered complicated by many neurologists. Adult-onset presentations of IEMs differ from childhood-onset phenotypes, which may lead to considerable diagnostic delay. The identification of adult-onset phenotypes at the earliest stage of the disease is important, since early treatment may prevent or lessen further brain damage. Our approach is based on a systematic review of all papers that concerned movement disorders due to an IEM in patients of 16 years or older. Detailed clinical phenotyping is the diagnostic cornerstone of the approach. An underlying IEM should be suspected in particular in patients with more than one movement disorder, or in patients with additional neurological, psychiatric, or systemic manifestations. As IEMs are all genetic disorders, we recommend next-generation sequencing (NGS) as the first diagnostic approach to confirm an IEM. Biochemical tests remain the first choice in acute-onset or treatable IEMs that require rapid diagnosis, or to confirm the metabolic diagnosis after NGS results. With the use of careful and systematic clinical phenotyping combined with novel diagnostic approaches such as NGS, the diagnostic yield of late-onset IEMs will increase, in particular in patients with mild or unusual phenotypes.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Parkinsonism & Related Disorders
volume
85
pages
9 pages
publisher
Elsevier
external identifiers
  • pmid:33745796
  • scopus:85102790399
ISSN
1873-5126
DOI
10.1016/j.parkreldis.2021.02.029
language
English
LU publication?
yes
id
e91429a8-96d8-41a7-9b53-4f618b3bdb8a
date added to LUP
2021-03-29 08:54:25
date last changed
2024-07-27 13:10:08
@article{e91429a8-96d8-41a7-9b53-4f618b3bdb8a,
  abstract     = {{<p>We propose a modern approach to assist clinicians to recognize and diagnose inborn errors of metabolism (IEMs) in adolescents and adults that present with a movement disorder. IEMs presenting in adults are still largely unexplored. These disorders receive little attention in neurological training and daily practice, and are considered complicated by many neurologists. Adult-onset presentations of IEMs differ from childhood-onset phenotypes, which may lead to considerable diagnostic delay. The identification of adult-onset phenotypes at the earliest stage of the disease is important, since early treatment may prevent or lessen further brain damage. Our approach is based on a systematic review of all papers that concerned movement disorders due to an IEM in patients of 16 years or older. Detailed clinical phenotyping is the diagnostic cornerstone of the approach. An underlying IEM should be suspected in particular in patients with more than one movement disorder, or in patients with additional neurological, psychiatric, or systemic manifestations. As IEMs are all genetic disorders, we recommend next-generation sequencing (NGS) as the first diagnostic approach to confirm an IEM. Biochemical tests remain the first choice in acute-onset or treatable IEMs that require rapid diagnosis, or to confirm the metabolic diagnosis after NGS results. With the use of careful and systematic clinical phenotyping combined with novel diagnostic approaches such as NGS, the diagnostic yield of late-onset IEMs will increase, in particular in patients with mild or unusual phenotypes.</p>}},
  author       = {{Koens, Lisette H and de Vries, Jeroen J and Vansenne, Fleur and de Koning, Tom J and Tijssen, Marina A J}},
  issn         = {{1873-5126}},
  language     = {{eng}},
  month        = {{03}},
  pages        = {{124--132}},
  publisher    = {{Elsevier}},
  series       = {{Parkinsonism & Related Disorders}},
  title        = {{How to detect late-onset inborn errors of metabolism in patients with movement disorders - A modern diagnostic approach}},
  url          = {{http://dx.doi.org/10.1016/j.parkreldis.2021.02.029}},
  doi          = {{10.1016/j.parkreldis.2021.02.029}},
  volume       = {{85}},
  year         = {{2021}},
}