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Left-hemispheric dominance for articulation: a prospective study on acute ischaemic dysarthria at different localizations

Dysarthria is a frequent symptom in cerebral ischaemia. However, speech characteristics of these patients have not previously been investigated in relation to lesion site in a prospective study. We investigated the auditory perceptual features in 62 consecutive patients with dysarthria due to a sing...

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Published in:Brain (London, England : 1878) England : 1878), 2006-03, Vol.129 (3), p.767-777
Main Authors: Urban, P. P., Rolke, R., Wicht, S., Keilmann, A., Stoeter, P., Hopf, H. C., Dieterich, M.
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description Dysarthria is a frequent symptom in cerebral ischaemia. However, speech characteristics of these patients have not previously been investigated in relation to lesion site in a prospective study. We investigated the auditory perceptual features in 62 consecutive patients with dysarthria due to a single, non-space-occupying cerebral infarction confirmed by MRI. Standardized speech samples of all patients were stored within 72 h after stroke onset using a digital tape recorder. Speech samples were assessed independently by two experienced speech therapists, who were unaware of the clinical and neuroradiological findings, using an interval scale ranging from 0 to 6. Separately assessed were features of articulation, phonation, prosody, and the global severity for a total of 31 items. Extracerebellar infarctions (85.5%) were located in the lower motor cortex (14.5%), striatocapsular region (46.8%) and base of the pons (24.2%). Isolated cerebellar infarctions were present in 14.5% of patients. There was a strong correlation between the findings of both examiners, showing identical scores, or only minor differences (
doi_str_mv 10.1093/brain/awh708
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P. ; Rolke, R. ; Wicht, S. ; Keilmann, A. ; Stoeter, P. ; Hopf, H. C. ; Dieterich, M.</creator><creatorcontrib>Urban, P. P. ; Rolke, R. ; Wicht, S. ; Keilmann, A. ; Stoeter, P. ; Hopf, H. C. ; Dieterich, M.</creatorcontrib><description>Dysarthria is a frequent symptom in cerebral ischaemia. However, speech characteristics of these patients have not previously been investigated in relation to lesion site in a prospective study. We investigated the auditory perceptual features in 62 consecutive patients with dysarthria due to a single, non-space-occupying cerebral infarction confirmed by MRI. Standardized speech samples of all patients were stored within 72 h after stroke onset using a digital tape recorder. Speech samples were assessed independently by two experienced speech therapists, who were unaware of the clinical and neuroradiological findings, using an interval scale ranging from 0 to 6. 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Speech parameters describing characteristics of articulation and prosody showed significant side-to-side and area differences, while this effect was lacking for any voice parameter. Left cerebral lesions showed a more severe overall impairment of speech and articulation, independent of lesion topography. Thirty-eight of 62 patients were available for follow-up. Speech evaluation showed normal speech within weeks in 15 out of 38 patients (39.5%). In the other 23 patients overall severity of dysarthria was mild. This is the first prospective study which describes speech characteristics of dysarthria due to acute unilateral cerebral infarctions. We could demonstrate that dysarthria in extracerebellar infarctions was more frequently caused by left-sided lesions and that the severity of dysarthria was more pronounced in left-sided lesions independent from lesion topography. All extracerebellar lesions were located along the course of the cortico-bulbar tract fibres. 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P.</creatorcontrib><creatorcontrib>Rolke, R.</creatorcontrib><creatorcontrib>Wicht, S.</creatorcontrib><creatorcontrib>Keilmann, A.</creatorcontrib><creatorcontrib>Stoeter, P.</creatorcontrib><creatorcontrib>Hopf, H. C.</creatorcontrib><creatorcontrib>Dieterich, M.</creatorcontrib><title>Left-hemispheric dominance for articulation: a prospective study on acute ischaemic dysarthria at different localizations</title><title>Brain (London, England : 1878)</title><addtitle>Brain</addtitle><description>Dysarthria is a frequent symptom in cerebral ischaemia. However, speech characteristics of these patients have not previously been investigated in relation to lesion site in a prospective study. We investigated the auditory perceptual features in 62 consecutive patients with dysarthria due to a single, non-space-occupying cerebral infarction confirmed by MRI. Standardized speech samples of all patients were stored within 72 h after stroke onset using a digital tape recorder. 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We could demonstrate that dysarthria in extracerebellar infarctions was more frequently caused by left-sided lesions and that the severity of dysarthria was more pronounced in left-sided lesions independent from lesion topography. All extracerebellar lesions were located along the course of the cortico-bulbar tract fibres. Compatible with a common pathophysiological basis of dysarthria in these patients, none of the 31 speech items differed significantly between subcortical and brainstem lesions.</abstract><cop>Oxford</cop><pub>Oxford University Press</pub><pmid>16418180</pmid><doi>10.1093/brain/awh708</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record>
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ispartof Brain (London, England : 1878), 2006-03, Vol.129 (3), p.767-777
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source Oxford Journals Online; Linguistics and Language Behavior Abstracts (LLBA)
subjects Acute Disease
Adult
Aged
Aged, 80 and over
Articulation Disorders - etiology
Biological and medical sciences
Brain Mapping - methods
Cerebral Infarction - complications
Cerebral Infarction - pathology
cerebral ischaemia
dysarthria
Dysarthria - etiology
Dysarthria - pathology
Female
Follow-Up Studies
Functional Laterality
Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy
Humans
lesion topography
Magnetic Resonance Imaging
Male
Medical sciences
Middle Aged
Nervous system (semeiology, syndromes)
Neurology
Prospective Studies
Severity of Illness Index
Speech Perception
Speech Production Measurement
stroke
Tomography, X-Ray Computed
Vascular diseases and vascular malformations of the nervous system
Voice Quality
title Left-hemispheric dominance for articulation: a prospective study on acute ischaemic dysarthria at different localizations
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