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J Neurol ; 265(12): 2934-2943, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30311053

RESUMO

BACKGROUND: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is the most common familial cerebral small vessel disease, caused by NOTCH3 gene mutations. The aim of our study was to identify clinical and neuroradiological features which would be useful in identifying which patients presenting with lacunar stroke and TIA are likely to have CADASIL. METHODS: Patients with lacunar stroke or TIA were included in the present study. For each patient, demographic and clinical data were collected. MRI images were centrally analysed for the presence of lacunar infarcts, microbleeds, temporal lobe involvement, global atrophy and white matter hyperintensities. RESULTS: 128 patients (mean age 56.3 ± 12.4 years) were included. A NOTCH3 mutation was found in 12.5% of them. A family history of stroke, the presence of dementia and external capsule lesions on MRI were the only features significantly associated with the diagnosis of CADASIL. Although thalamic, temporal pole gliosis and severe white matter hyperintensities were less specific for CADASIL diagnosis, the combination of a number of these factors together with familial history for stroke result in a higher positive predictive value and specificity. CONCLUSIONS: A careful familial history collection and neuroradiological assessment can identify patients in whom NOTCH3 genetic testing has a higher yield.


Assuntos
Encéfalo/diagnóstico por imagem , CADASIL/diagnóstico , Neuroimagem , Receptor Notch3/genética , Adulto , Idoso , Atrofia , CADASIL/genética , CADASIL/fisiopatologia , Hemorragia Cerebral/diagnóstico , Hemorragia Cerebral/genética , Hemorragia Cerebral/fisiopatologia , Feminino , Humanos , Ataque Isquêmico Transitório/diagnóstico , Ataque Isquêmico Transitório/genética , Ataque Isquêmico Transitório/fisiopatologia , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Acidente Vascular Cerebral Lacunar/diagnóstico , Acidente Vascular Cerebral Lacunar/genética , Acidente Vascular Cerebral Lacunar/fisiopatologia , Substância Branca/diagnóstico por imagem
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