Table 3.

Recommended Evaluations Following Initial Diagnosis in Individuals with Adult-Onset Progressive SCA13

System/ConcernEvaluationComment
Neurologic Neurologic assessment for cerebellar motor dysfunction (gait & postural ataxia, dysmetria, dysdiadochokinesis, tremor, dysarthria, nystagmus, saccades, & smooth pursuit)Use standardized scale (SARA, ICARS, or BARS) to establish baseline for ataxia. 1
Physical medicine, OT/PT assessmentTo incl assessment of gross motor & fine motor skills, ambulation
Speech Speech/language eval for those w/dysarthriaIf dysarthria is atypical or severe enough to cause communication problems
Feeding If frequent choking or severe dysphagia: assess nutritional status & aspiration risk.Consider placement of feeding tube for severe cases to ↓ risk of aspiration.
Psychiatric/
Behavioral
Neuropsychiatric eval for those w/problems in learning &/or social adaptationNo evidence that pharmacologic therapy has been required or effective in patients w/known pathogenic variants
Genetic
counseling
By genetics professionals 2To inform patients & families re nature, MOI, & implications of SCA13 to facilitate medical & personal decision making
Family support/
resources
Social workAssess:

BARS = Brief Ataxia Rating Scale; ICARS = International Co-operative Ataxia Rating Scale; MOI = mode of inheritance; OT = occupational therapy; PT = physical therapy; SARA = Scale for the Assessment and Rating of Ataxia

1.
2.

Medical geneticist, certified genetic counselor, certified advanced genetic nurse

From: Spinocerebellar Ataxia Type 13

Cover of GeneReviews®
GeneReviews® [Internet].
Adam MP, Feldman J, Mirzaa GM, et al., editors.
Seattle (WA): University of Washington, Seattle; 1993-2024.
Copyright © 1993-2024, University of Washington, Seattle. GeneReviews is a registered trademark of the University of Washington, Seattle. All rights reserved.

GeneReviews® chapters are owned by the University of Washington. Permission is hereby granted to reproduce, distribute, and translate copies of content materials for noncommercial research purposes only, provided that (i) credit for source (http://www.genereviews.org/) and copyright (© 1993-2024 University of Washington) are included with each copy; (ii) a link to the original material is provided whenever the material is published elsewhere on the Web; and (iii) reproducers, distributors, and/or translators comply with the GeneReviews® Copyright Notice and Usage Disclaimer. No further modifications are allowed. For clarity, excerpts of GeneReviews chapters for use in lab reports and clinic notes are a permitted use.

For more information, see the GeneReviews® Copyright Notice and Usage Disclaimer.

For questions regarding permissions or whether a specified use is allowed, contact: ude.wu@tssamda.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.