We compared 36 stroke patients with subcortical lesions to 42 with cortical lesions of similar volume to determine the frequency. Aphasia owing to subcortical brain infarcts in childhood. The assessment of bilingual aphasia download ebook pdf. A nonspecific term which encompasses any aphasia due to a cortical lesion, including the sensory aphasia of wernicke temporal cortex or the motor aphasia of broca frontal cortex. Alexander, md article abstractnumerous reports of aphasia after subcortical lesions have produced incomplete agreement about basic clinicoanatomic correlations. Aphasia with predominantly subcortical lesion sites.
A patient is reported who was treated successfully for a left thalamic abscess that resulted in subcortical aphasia. In the subcortical group, the severity aphasia score was correlated with rcbf ratios in three left cortical regions and in a right posterior temporal region. Distinct profiles following left putaminal hemorrhage mark desposito, md, and michael p. Symptomatology of subcortical aphasia sciencedirect. Two subcortical structures thought to participate in the pathogenesis of aphasia are the basal ganglia and the thalamus. Subcortical aphasia two major groups of aphasic symptomatology have been described. Furthermore, you will be able to identify therapy activities and. Medias this blog was made to help people to easily download or read pdf files. Nine cases of subcortical aphasia with capsularputaminal cp lesion sites demonstrated on computed tomographic ct scans were studied. Communication disturbances in aging and dementia 19. Subcortical lesions and aphasia journal of speech and. The herpes simplex virus affects the frontal and temporal lobes, subcortical structures. Some of these can include brain tumors, traumatic brain injury, and progressive neurological disorders.
It allows you to establish the type of aphasia your client has, along with the severity of it, and strengths and weaknesses. There has been disagreement about the precise characteristics of subcortical aphasia. It is characterized by gradual loss of language function in the context of relatively well. To control for some of the common differences, we analyzed patients with left putaminal hemorrhage controlled for location subcortical but not thalamic, and for time postonset. Patients with brocas aphasia are aware of their deficits, often becoming frustrated and depressed. No activation was found for the opposite contrast pet1pet2. For full access to this pdf, sign in to an existing account, or purchase an annual subscription. Distinct profiles following left putaminal hemorrhage. For quantitative evaluation of cerebral perfusion, the asymmetry indices ais for subcortical and cortical areas were calculated using spm and spam. Lesions of thalamic relay nuclei linked to the cortical language areas are related to paraphasic aphasia.
Finally, a newer category, subcortical aphasia, has emerged, based on subcortical lesion localization on brain imaging studies. Although these cases of cp subcortical aphasia shared certain wellknown features of brocas and wernickes cortical aphasia syndromes, they did not completely resemble cases of either brocas, wernickes, global, or thalamic aphasia in neurologic findings, ct. Download as pptx, pdf, txt or read online from scribd. Volume 10, issue 4, 23 december 1997, pages 267275. The clinical profiles of the patients were quite similar, varying in severity in rough proportion to lesion size and varying in quality in. Primary progressive aphasia ppadespite its nameis a type of dementia. Researchers took atrofia cortico subcortical scans of the 8 study participants in order to. Please, feel free to download, copy, print, and in general, use it. To control for some of the common differences, we analyzed patients with left putaminal hemorrhage controlled for locationsubcortical but not thalamic, and for time postonset. Here, overt language production tasks were used to correlate regional cerebral blood flow rcbf changes and language performance in patients with vascular subcortical lesions. Assessments were carried out both in the acute phase and after a period ranging. Naeser ma, alexander mp, helmestabrooks n, levine hl, laughlin sa, geschwind n.
She showed rapid recovery from her aphasia, with residual deficits in writing, naming, calculation, and memory. Subcortical aphasia can result from lesions in the basal ganglia, white matter tracts, or thalamus 7,8,9,10. Subcortical aphasia refers to language impairments that develop in association with damageaffecting regions other than the cerebral. Selective impairment of verb retrieval in subcortical aphasia. Pdf subcortical aphasia a longitudinal pet study researchgate.
Although there are myriads of such findings in the literature, similar reports are scanty from the indian context. Leonardo da vinci, a memory of his childhood, 1910. We evaluated 14 patients with aphasia after subcortical lesions and controlled for duration, general anatomic site of lesions capsulostriatal only, and etiology. Frontiers implications of subcortical structures in aphasia. Predicting aphasia recovery predicting poststroke aphasia recovery is important, as patients and their caregivers may want to know the chances of recovery price et al. In stroke patients, several mechanisms have been invoked to explain how such subcortical lesions can lead to aphasia. The study was designed to investigate whether aphasia in stroke patients with subcortical lesions subcortical aphasia was due to the subcortical lesion itself or to dysfunction of cortical language zones. The study analyses clinical presentation of language functions of 32 patients with subcortical aphasia induced by stroke. Subcortical aphasia after striatocapsular infarction. Results taken together, the results indicate that aphasia is a common outcome after a lesion to subcortical structures. Subcortical aphasia results from damage to subcortical regions of the brain e.
Some disagreement has arisen from methodologic differences. Diagnostic and statistical manual of mental disorders. The patients aphasia was characterized by severe impairment in auditory and visual comprehension and auditory retention span, as well as by anomia, agraphia, and dyscalculia. Our study confirms the concept of childhood subcortical aphasia, depicts the linguistic profile in these patients, and sustains the indication of systematic formal language assessment during the followup of all children with subcortical infarct involving the dominant hemisphere. The patients have been divided into three groups according to neuroanatomic localization of the lesion, defined by ct and mri examination striato. Subcortical aphasia definition of subcortical aphasia by. This paper reports on 3 patients with lesions of the thalamus and 10 patients with lesions of the basal ganglia, most of whom had persistent aphasias. Recovery from aphasia and neglect after subcortical stroke.
This study was aimed to evaluate the brain metabolism in patients with subcortical aphasia after intracerebral hemorrhage ich and the relationship between the severity of aphasia and regional brain metabolism, by using statistical mapping analysis of f18 fluorodeoxyglucose positron emission tomography f18 fdg pet. Thus, disruption of the relay pathways can lead to impairments in language abilities, though the resulting patterns of impairment are typically milder in form and recover better than aphasias that. Article abstractnumerous reports of aphasia after subcortical lesions have produced incomplete agreement about basic clinicoanatomic correlations. Finally, a newer category, subcortical aphasia, has emerged, based on. A spect scan showed large areas of hypoperfusion in the cortex of the left hemisphere. This study was aimed to evaluate the brain metabolism in patients with subcortical aphasia after intracerebral hemorrhage ich and the relationship between the severity of aphasia and regional brain metabolism, by using statistical mapping analysis of f18 fluorodeoxyglucose positron emission tomography f 18 fdg pet images. Cortical regional cerebral perfusion was assessed by n, n, n1trimethyln12hydroxy3methyl5i123 iodobenzyl1, 3propanediamine 2 hcl i123 hipdm and single photon emission computerised tomography spect in six aphasic and two neglect patients with unilateral subcortical vascular lesions. This article is from yonsei medical journal, volume 53.
Different sources of evidence have shown the close relationship between damage to the thalamus, and the basal ganglia, and language deficits. Abstract controversy surrounds differences between cortical and subcortical aphasias and their underlying pathophysiological mechanisms, but the necessary direct comparisons between clinical characteristics of patients with the two lesion types are lacking. Aphasia is most often caused by stroke, but any disease or damage to the parts of the brain that control language can cause aphasia. The aphasia quotient aq, which is a measure of the severity of aphasia, was obtained by using the korean version of the western aphasia battery 5. When possible, subcortical damage was further specified. For fluency from the western aphasia battery, subcortical structural damage had direct and indirect through frontal lobe effects on the behavior. It is suggested that aphasia in patients with subcortical lesions results. Pdf objective to evaluate the types and severity of subcortical aphasia after stroke and to determine the predictors of the degree of.
The role of cortical hypoperfusion article pdf available in brain 125pt 5. Such findings posit that the conceptual knowledge is represented in specific categories, with possibly different neural representations. A thorough aphasia assessment provides you with invaluable information. A controversial and promising topic subcortical aphasias. Results anomic aphasia was the most frequent type of aphasia n15, 39. Poststroke subcortical aphasia and neurobehavioral.
Subcortical structures serve as relay stations for pathways to and from frontal, parietal, and temporal regions that mediate language processing. In rare cases, aphasia may also result from herpesviral encephalitis. Click download or read online button to get the assessment of bilingual aphasia book now. Statistical mapping analysis of brain metabolism in. Findings show that 110 out of 394 aphasic patients with lesion in the basal ganglia exhibited comprehension deficits, while 31 participants out of 288 with thalamic aphasia. Subcortical aphasia may result from lesions of the basal ganglia, anterolateral nuclei of the thalamus, and capsularpericapsular white matter of the languagedominant hemisphere.
Brocas aphasia is characterized by nonfluent speech, varying from mutism to. Pdf subcortical aphasia and neglect in acute stroke. Cortical aphasia definition of cortical aphasia by. Subcortical aphasia communication disorders 5153 with aulgur at oklahoma state university stillwater. Background and purpose very few neuroimaging studies have focused on followup of subcortical aphasia. The aim of this study was to further define the clinical features of subcortical aphasia in children with deep brain infarcts and to define the sequelae associated with childhood strokes. Selective impairments of wordclass retrieval skills have been extensively reported in the literature. Symptoms vary depending on the area of subcortical damage and any related cortical damage.
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