infartos cerebrais em pacientes jovens relacionados a deficiência de anticoagulantes naturais proteína c e proteína s protein c and s deficiencies related stroke in young patients

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ID: 172210
1996
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Abstract
Infartos cerebrais (IC) em jovens apresentam múltiplas etiologias que diferem do padrão observado nos indivíduos idosos. Deficiências de anticoagulantes naturais têm sido descritas nos últimos anos como causa de IC, principalmente em pacientes com menos de 40 anos. Existe tendência atual de se pesquisar essas deficiências em todos os pacientes jovens com infarto cerebral de causa indeterminada e naqueles com manifestações trombóticas de múltiplos sistemas. Realizamos pesquisa dos níveis de proteína C, proteína S e antitrombina III em pacientes entre 15 e 40 anos com ICs classificados como indeterminados após conclusão de protocolo básico de investigação. Diagnosticamos dois casos de deficiência de proteína C e um caso de deficiência de proteína S. Concluímos que a investigação sistemática de causas hematológicas proporciona decréscimo no número de infartos indeterminados, além de possibilitar a adoção de condutas específicas que diminuem a incidência de novos eventos nos casos diagnosticados.
The possible etiologies of cerebral infarcts (CI) in young patients differ from those in the older stroke population. Recently, deficiencies of fibrinolytic factors emerged as an important etiology of stroke in the young population. The literature has emphasized the diagnosis of such conditions especially in stroke cases of undetermined etiology and with history of recurrent thrombosis. We carried out a research on the serum level of protein C, protein S, and antithrombin III in young patients, between 15 and 40 years, with CI of undetermined cause after application of a standard protocol. Three patients had low levels of these proteins; two had protein C deficiency, and one protein S deficiency. None of them had antithrombin III deficiency. We conclude that systematic investigation of such causes of cerebral infarct will reduce the group of undetermined strokes, and will open the possibility of prophylactic treatment in a non-negligible group of patients.
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Authors ;José Ibiapina Siqueira Neto;Antonio C. Santos;Soraia R. Cabette Fábio;Américo C. Sakamoto
Journal communications in computer and information science
Year 1996
DOI
10.1590/S0004-282X1996000400007
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X1996000400007
Keywords
cerebral infarct neuropsychiatry biological psychiatry

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