Lack of evidence for arterial ischemia in transient global amnesia.
Stroke
; 39(2): 476-9, 2008 Feb.
Article
em En
| MEDLINE
| ID: mdl-18187686
ABSTRACT
BACKGROUND AND PURPOSE:
Lesions in diffusion-weighted imaging (DWI-L) have been commonly described in transient global amnesia (TGA). We investigated a possible relationship between brain ischemia and TGA.METHODS:
Twenty-eight patients underwent transcranial and carotid Doppler ultrasonography (including microembolus detection) and MRI within 24 hours of TGA onset (including DWI, perfusion-weighted imaging and angio-MRI). MRI was repeated at 48 to 96 hours (21 patients) and 30 days (18 patients).RESULTS:
Punctate DWI-L were observed in 16 patients (57%) and were not attributable to perfusion abnormalities, arterial stenoses or underlying cardioembolic disease. MRIs performed between 12 and 72 hours showed the highest frequency of DWI-L (88%; P<0.001). No pathological findings were observed at 30 days.CONCLUSIONS:
These results suggest that TGA is not related to cerebral arterial ischemia.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Isquemia Encefálica
/
Amnésia Global Transitória
Limite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Stroke
Ano de publicação:
2008
Tipo de documento:
Article