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Published in: Journal of Neurology 12/2023

05-09-2023 | Movement Disorder | Original Communication

Investigating differences in young- and late-onset progressive supranuclear palsy

Authors: Batoul A. AlWazan, Indira Garcia-Cordero, Blas Couto, Marta Lamartine Monteiro, Michelle Y. Tsang, Jeffrey Antwi, Jonathan Sasitharan, Puja Bhakta, Gabor G. Kovacs, Susan Fox, David F. Tang-Wai, Anthony E. Lang, Maria Carmela Tartaglia

Published in: Journal of Neurology | Issue 12/2023

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Abstract

Background

The impact of age of onset on the presentation of progressive supranuclear palsy phenotypes is not well studied. We hypothesized that there is difference in presentation and phenotype between young- and late-onset PSP.

Objectives

Our aim was to compare phenotypes and rate of change in disability between young-onset PSP (YOPSP) and late-onset PSP (LOPSP).

Methods

Retrospective data of patients seen in the Rossy PSP Centre from March 2014 to April 2022 with clinical diagnosis of PSP as per the MDS 2017 diagnostic criteria were examined. We used cut-off age of 65 years to categorize the patients into YOPSP and LOPSP. We compared the prevalence of phenotypes, presenting symptoms, and MDS core criteria between the two groups. The severity of disease between the two groups was measured using PSP-RS.

Results

We found 107 patients with clinical diagnosis of PSP as per MDS criteria, a third were defined as YOPSP. PSP speech/language (SL) phenotype was more prevalent in YOPSP (18% vs 0%, p < 0.001). Aphasia was significantly higher in YOPSP (16% vs 1.4%, p = 0.03). The speech and language dysfunction (C1) core criteria were more prevalent in YOPSP (33.3% vs 12.2%, p = 0.05). Longitudinal analysis of PSP-RS showed worsening of bulbar total score at 6 months in YOPSP (t (38) = 2.87; p = 0.05).

Conclusion

Our study revealed that YOPSP are more likely to present with a speech and language variant. Our results highlight that age of onset may predict PSP phenotypes, which holds both clinical and prognostic importance.
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Metadata
Title
Investigating differences in young- and late-onset progressive supranuclear palsy
Authors
Batoul A. AlWazan
Indira Garcia-Cordero
Blas Couto
Marta Lamartine Monteiro
Michelle Y. Tsang
Jeffrey Antwi
Jonathan Sasitharan
Puja Bhakta
Gabor G. Kovacs
Susan Fox
David F. Tang-Wai
Anthony E. Lang
Maria Carmela Tartaglia
Publication date
05-09-2023
Publisher
Springer Berlin Heidelberg
Published in
Journal of Neurology / Issue 12/2023
Print ISSN: 0340-5354
Electronic ISSN: 1432-1459
DOI
https://doi.org/10.1007/s00415-023-11976-9

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