Clinicoanatomical correlation in stroke related aphasia.

Clinicoanatomical correlation in stroke related aphasia.

Ann Indian Acad Neurol. 2015 Oct-Dec;18(4):424-9

Authors: Bohra V, Khwaja GA, Jain S, Duggal A, Ghuge VV, Srivastava A

Abstract
CONTEXT: With advances in neuroimaging, traditional views regarding the clinicoanatomic correlation in stroke patients with aphasia are being challenged and it has been observed that lesions at a given cortical or subcortical site may manifest with different aphasia profiles.
AIMS: To study as to whether there is a strict clinicoanatomical correlation between the type of aphasia and lesion site in patients with first ever stroke.
SETTINGS AND DESIGN: Observational study, based in a tertiary care center.
MATERIALS AND METHODS: Stroke patient's ≥18 years of age were screened and those with first ever stroke and aphasia were subjected to a detailed stroke workup and language assessment using the Hindi version of Western Aphasia Battery (WAB). Statistical analysis was done with χ(2) test with Yates correction and Kruskal-Wallis test. The level of significance was set at P < 0.05.
RESULTS: Overall aphasia was detected in 27.9% of the 260 screened cases with stroke. Amongst 60 cases with first ever stroke and aphasia, the aphasia type was: Global (33.33%), Broca's (28.3%), transcortical motor (13.33%), transcortical sensory (10%), Wernicke's (8.33%), anomic (5%), and conduction (1.67%) aphasia. A definite correlation between the lesion site and the type of aphasia as per the traditional classification was observed in 35% cases only.
CONCLUSIONS: No absolute correlation exists between the lesion site and the type of clinical aphasia syndrome in majority of the patients with cortical and subcortical stroke.

PMID: 26713015 [PubMed]

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