Transcranial Doppler monitoring during language tasks in stroke patients with aphasia.
Purpose. To investigate the pattern of hemispheric activation, according to cerebral blood flow changes, as measured by Transcranial Doppler Ultrasonography (TCD) during language tasks in stroke patients with aphasia. Method. Prospective study investigating results of TCD monitoring during language...
| Published in: | Disability & Rehabilitation Vol. 29; no. 15; pp. 1177 - 1184 |
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| Main Authors: | , , , |
| Format: | equations & formulas research tables/charts Journal Article |
| Published: |
Taylor & Francis Ltd
Aug2007
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105970675&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105970675 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09638288 B73 jtl: Disability & Rehabilitation issn: 09638288 maglogo: Y pubinfo: dt: Aug2007 vid: 29 iid: 15 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 105970675 105970675 25901997 2009654299 10.1080/09638280600999493 NLM17653991 105970675 ppf: 1177 ppct: 7 formats: tig: atl: Transcranial Doppler monitoring during language tasks in stroke patients with aphasia. aug: au: Treger I Luzki L Gil M Ring H affil: Loewenstein Rehabilitation Hospital, Ra'anana, Israel. sug: subj: Aphasia Brain Hemispheres Physiology Language Tests Stroke Complications Adult Aged Aphasia Prognosis Blood Flow Velocity Evaluation Cerebrovascular Circulation Clinical Assessment Tools Data Analysis Software Descriptive Statistics Female Functional Assessment Israel Left Brain Hemisphere Male Mathematics Middle Age NIH Stroke Scale One-Way Analysis of Variance Pearson's Correlation Coefficient Prospective Studies Rehabilitation Centers Right Brain Hemisphere Speech Stroke Patients T-Tests Ultrasonography, Doppler Human Adult: 19-44 years Aged: 65+ years Middle Aged: 45-64 years Female Male ab: Purpose. To investigate the pattern of hemispheric activation, according to cerebral blood flow changes, as measured by Transcranial Doppler Ultrasonography (TCD) during language tasks in stroke patients with aphasia. Method. Prospective study investigating results of TCD monitoring during language naming and recognition tasks in ischemic stroke patients (n = 32) with and without aphasia and 5 control subjects. Results. Delta mean flow velocity (MFV) in the left Middle Cerebral Artery (MCA) was found to be much lower in aphasia patients as compared to healthy subjects. Negative statistical correlation was found between the improvement of language ability and the blood flow velocity parameters in the left hemisphere. Aphasia patients with good language ability showed much higher MFV in the right MCA during the first test. Left hemispheric blood flow velocity shift was found to be higher during speech tasks in the patients with poor language ability. Conclusions. Our study suggests that the performance of language tasks in aphasia patients during early recovery after stroke is associated with relatively high right hemisphere activation. High blood flow velocity in the right MCA of aphasia patients was found to be a good prognostic sign for better language ability. Arterial blood flow that shifted towards the left hemisphere during speech tasks was associated with poor language ability. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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