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Visible Changes in Lesion Borders on CT Scan after Five Years Poststroke, and Long-Term Recovery in Aphasia

Authors
Journal
Brain and Language
0093-934X
Publisher
Elsevier
Publication Date
Volume
62
Issue
1
Identifiers
DOI: 10.1006/brln.1997.1866

Abstract

Abstract This study examined 12 aphasia patients at approximately 1 year poststroke (Time 1) and again at 5–12 years poststroke (Time 2) with language testing and CT scan. Significant increases in naming scores, and phrase length in nonfluent speech were observed after 5 years poststroke. Significant expansion in visible lesion borders (lesion size) was observed after 5 years poststroke; an increase in lesion size of >1% was present in 9/12 cases (75%). Not one case had a second stroke. Thus, it appears that even though lesion expansion may occur after 5 years poststroke, as long as this expansion is unilateral and gradual, it has no adverse effect on language, and in fact, continued recovery in naming and nonfluent speech may also occur. Long-term recovery patterns in aphasia which may be associated with brain reorganization deserve further study, especially with functional brain imaging techniques.

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