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J Neurol Neurosurg Psychiatry ; 83(8): 771-5, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22696583

RESUMO

OBJECTIVE: To report the clinical features, causes and outcome of cerebral cortical border-zone infarcts BZI (C-BZI). METHODS: The authors prospectively included patients with MRI-confirmed C-BZI among individuals consecutively admitted in Stroke Unit. RESULTS: Forty-five patients presented C-BZI out of 589 with MRI-confirmed cerebral infarcts (7.6%). Particular clinical characteristics existed in C-BZI in comparison with other cerebral infarctions as a whole, including: (1) frequent transient symptoms at onset (27% vs 9%; p<0.001) and low severity score (NIHSS=3.1±3.0 vs 5.2±6.1; p=0.02); (2) early seizures in first 2 weeks (7/45 (15.6%) vs 12/544 (2.2%); p<0.001), even when focusing only on other infarctions involving the cerebral cortex (15.6% vs 4.3%; p<0.01); (3) heterogeneous clinical presentation but specific transcortical aphasia allowing a clinical suspicion of BZI before MRI; and (4) frequently associated internal carotid disease (69%), with subsequent early surgery in 75% of the cases. Following adapted care in stroke unit, C-BZIs' prognosis appeared good (Rankin score ≤2 at D90) for 82% of the patients. CONCLUSION: Some clinical features are overrepresented in such infarctions, including initial transient symptoms preceding the onset of a completed deficit, transcortical aphasia and early seizures. Despite lower initial severity, C-BZIs justify early management in stroke unit, often followed by carotid surgery, leading to an overall good prognosis.


Assuntos
Infarto Cerebral/patologia , Idoso , Afasia/etiologia , Doenças das Artérias Carótidas/complicações , Córtex Cerebral/patologia , Infarto Cerebral/etiologia , Infarto Cerebral/terapia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neuroimagem , Estudos Prospectivos , Fatores de Risco , Convulsões/etiologia , Índice de Gravidade de Doença
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