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Arquivos de Neuro-Psiquiatria

Print version ISSN 0004-282X

Arq. Neuro-Psiquiatr. vol.43 no.1 São Paulo Mar. 1985

http://dx.doi.org/10.1590/S0004-282X1985000100006 

Amnesia global transitória: estudo de 26 casos

 

Transient global amnesia: study of 26 cases

 

 

Eliova ZukermanI; Luiz Augusto F. AndradeII; Paulo Henrique F. BertolucciIII

IProfessor Adjunto, Chefe do Departamento. Departamento de Neurologia e Neurocicurgia da Escola Paulista de Medicina
IIProfessor Adjunto, Doutor em Neurologia. Departamento de Neurologia e Neurocicurgia da Escola Paulista de Medicina
IIIPós-Graduando em Neurologia. Departamento de Neurologia e Neurocicurgia da Escola Paulista de Medicina

 

 


RESUMO

A amnesia global transitória (AGT) é quadro caracterizado por distúrbio isolado de memória, de curta duração, reversível e geralmente recorrente. Os autores investigaram 26 pacientes (16 homens e 10 mulheres), com idade variando entre 51 e 78 anos. Três pacientes apenas apresentaram mais de um episódio de AGT (3,4 e 5 episódios). Como fatores desencadeantes foram identificados tensão emocional em 7 e exercício físico em um paciente. O EEG realizado em 24 pacientes mostrou-se normal em 20. A tomografia computadorizada foi normal em três casos e mostrou isquemia no território vértebro-basilar em dois. Das 4 angiografias cerebrais realizadas, uma foi normal e as outras mostraram alterações no território vértebro-basilar. Esses dados são comparáveis com os relatos da literatura. São discutidas as relações entre AGT, doença cerebrovascular, epilepsia e enxaqueca.


SUMMARY

The clinical picture and investigation of 26 patients (16 males and 10 females) with diagnosis of transient global amnesia (TGA) are reported. Age ranged from 51 to 78 years at the time of TGA, which occurred more often between 60 and 70 year-old people. Three patients presented more than one episode (3, 4 and 5). Precipitating factors were identified in 8 cases (emotional stress in 7 and physical exercise in 1). Risk factors for cerebrovascular disease were found in 13 cases, mainly hipertension (9 cases) and diabetes (3 cases). EEG was normal in 20 cases and disclosed diffuse delta waves in 2, temporal delta waves in 1 and temporal theta waves in another patient. CAT scan showed no abnormalities in 3 cases and ischemia in the vertebro-basilar system in another 2. Brain angiography was normal in 1 case and showed abnormalities in the vertebro-basilar system arteries in 3. During the follow-up period, wich ranged from 1 to 84 months, no neurologic deterioration was seen. The role of risk factors for vascular diseases, epilepsy and migraine in the development of TGA is discussed.


 

 

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Trabalho realizado na Disciplina de Neurologia do Departamento de Neurologia e Neurocicurgia da Escola Paulista de Medicina.
Disciplina de Neurologia, Departamento de Neurologia e Neurocirurgia, Escola Paulista de Medicina - R. Botucatú, 740 - 04023, São Paulo, SP - Brasil.

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