Differential diagnosis of acquired communication disorders

C. Layfield, K. Ballard, D. Scholl, J. R. Duffy, M McNeil, Nicholas O'Dwyer, M Halaki, D Robin

Research output: Contribution to journalArticle


Background: Acquired communication disorders including aphasia,apraxia of speech (AOS), and dysarthria are common following stroke.Due to the close proximity of underlying neural structures many strokesurvivors present with co-occurring communication disorders. RecentNational Stroke Foundation (NSF) guidelines recommend “all patientswith suspected communication difficulties should receive comprehensiveassessment”. Currently tools distinguishing between concomitant com-munication disorders have yet to be validated. Criteria for diagnosingaphasia, acquired apraxia of speech (AOS) and dysarthria have manyoverlapping features. Diagnostic findings from available standardizedassessments evaluating aphasia, AOS and dysarthria may not account forthe presence of co-occurring communication disorders. Consequently,test results are susceptible to misinterpretation and may reflect undiffer-entiated diagnoses.

Aims:This study aimed to identify which assessments and clinical fea-tures of disordered expressive output best predicted expert judgements.Methods:70 participants with acquired communication disorders follow-ing stroke completed a comprehensive standardized assessment battery.Participants were also rated by experts blinded to assessment results on anumber of parameters including standardized evaluations of presence andseverity of aphasia, AOS, dysarthria.Results:Using multivariate discriminant analysis, assessment subtests andclinical features most closely corresponding with expert judgements wereidentified.
Original languageEnglish
Pages (from-to)25-25
Number of pages1
JournalInternational Journal of Stroke
Issue number2
Publication statusPublished - 2014

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    Layfield, C., Ballard, K., Scholl, D., Duffy, J. R., McNeil, M., O'Dwyer, N., Halaki, M., & Robin, D. (2014). Differential diagnosis of acquired communication disorders. International Journal of Stroke, 9(2), 25-25.