1. Ataxias in Brazil: 17 years of experience in an ataxia center.
- Author
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Massuyama BK, Gama MTD, Silva TYT, Braga-Neto P, Pedroso JL, and Barsottini OGP
- Subjects
- Humans, Brazil epidemiology, Female, Male, Adult, Middle Aged, Adolescent, Child, Young Adult, Retrospective Studies, Child, Preschool, Aged, Spinocerebellar Ataxias epidemiology, Spinocerebellar Ataxias genetics, Spinocerebellar Ataxias congenital, Cerebellar Ataxia epidemiology, Cerebellar Ataxia genetics
- Abstract
Background: Cerebellar ataxias comprise sporadic and genetic etiologies. Ataxia may also be a presenting feature in hereditary spastic paraplegias (HSPs)., Objective: To report a descriptive analysis of the frequency of different forms of cerebellar ataxia evaluated over 17 years in the Ataxia Unit of Universidade Federal de São Paulo, Brazil., Methods: Charts of patients who were being followed from January 2007 to December 2023 were reviewed. We used descriptive statistics to present our results as frequencies and percentages of the overall analysis. Diagnosed patients were classified according to the following 9 groups: sporadic ataxia, spinocerebellar ataxias (SCAs), other autosomal dominant cerebellar ataxias, autosomal recessive cerebellar ataxias (ARCAs), mitochondrial ataxias, congenital ataxias, X-linked ataxias, HSPs, and others., Results: There were 1,332 patients with ataxias or spastic paraplegias. Overall, 744 (55.85%) of all cases were successfully diagnosed: 101 sporadic ataxia, 326 SCAs, 20 of other autosomal dominant cerebellar ataxias, 186 ARCAs, 6 X-linked ataxias, 2 mitochondrial ataxias, 4 congenital ataxias, and 51 HSPs., Conclusion: This study describes the frequency of cerebellar ataxias in a large group of patients followed for the past 17 years, of whom 55% obtained a definitive clinical or molecular diagnosis. Future demographic surveys in Brazil or Latin American remain necessary., Competing Interests: The authors have no conflict of interest to declare., (The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/).) more...
- Published
- 2024
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