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Journal of the Korean Academy of Rehabilitation Medicine 1999;23(3):478-484.
Types, Severity and Prognostic Factors in Subcortical Aphasia.
Kim, Dong Hwee , Kim, Min Jung , Kwon, Hee Kyu , Lee, Hang Jae
Department of Rehabilitation Medicine, College of Medicine, Korea University.
피질하 실어증에서 유형 및 정도와 예후 인자
김동휘, 김민정, 권희규, 이항재
고려대학교 의과대학 재활의학교실
Abstract

Objective
The purpose of this study is to evaluate the types of aphasia and the clinicoanatomic correlation in aphasic patients with subcortical lesions, and to investigate the change in the types of aphasia during the recovery stage.


Method
Twenty-three stroke patients (16 men and 7 women) with left subcortical lesion was investigated. On the basis of the brain CT or MRI findings, the patients were divided into the 4 groups. Language dysfuntion was evaluated using the modified Western Aphasia Battery (WAB) and the type of aphasia and aphasia quotient were determined. Initial examination was performed within 2 months post-onset in all of the patients and the follow-up examination was done after 6 months post-onset in 9 patients.


Results
The most common type was anomic aphasia (39%). The type of subcortical aphasia was variable regardless of the sites of left subcortical lesion. Aphasia quotient was significantly related with the lesion size (γ = ⁣0.05, p<0.05) and the initial Barthel index (γ = 0.65, p<0.05). The scores of all the subtests of the modified WAB and aphasia quotient were significantly decreased in the group with the cortical involvement or the history of operation. On the follow-up examination, the scores of fluency, information and naming subtests were significantly increased.


Conclusion
The most common type of aphasia was anomic aphasia and the type of subcortical aphasia was not correlated to the anatomic lesion. Severity of subcortical aphasia would be related with the lesion size, the history of operation or the cortical involvement. The prognosis of subcortical aphasia was generally good.

Key Words: Subcortical aphasia, Modified Western Aphasia Battery, Aphasia quotient
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