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Objetivo: Avaliar o perfil epidemiologico dos pacientes atendidos na Unidade de Neurocirurgia do Hospital de Base do Distrito Federal (HBDF), unidade de referencia de doencas cerebrovasculares no Distrito Federal, bem como os metodos multidisciplinares de tratamento utilizados e a evolucao clinica. Metodos: Realizou-se a analise retrospectiva de 42 pacientes portadores de malformacoes arteriovenosas (MAV) encefalicas admitidos no Servico de Neurocirurgia do HBDF entre agosto de 2007 e janeiro de 2012, tratados conservadoramente ou submetidos a algum tipo de intervencao:microcirurgia intracraniana, embolizacao, tecnica combinada ou radiocirurgia. Resultados: A distribuicao por genero perfez uma relacao de 1,1:1,0 (masculino:feminino). Houve predominio da localizacao supratentorial (85%, 36/42). Conforme a Escala de Spetzler-Martin (ESM), evidenciou-se predominio de graus intermediarios (graus II, III e IV), totalizando 96% (40/42). Dez pacientes (24%, 10/42) foram submetidos a tratamento cirurgico convencional, 22 pacientes (52%, 22/42) a embolizacao (tratamento endovascular), 1 paciente (2,38%, 1/42) a tratamento combinado (endovascular e cirurgia), 1 (2,38%, 1/42) a radiocirurgia e 8 pacientes (19,05%, 8/42) foram tratados conservadoramente. A evolucao clinica caracterizada pela Escala Modificada de Rankin (EMR) mostrou semelhanca estatistica em relacao aos diversos tratamentos estabelecidos. Conclusao: As MAVs sao lesoes congenitas que, apesar de baixa prevalencia, sao alvo importante de estudo, por acometer principalmente adultos jovens e em idade produtiva. Este estudo, realizado em um centro de referencia do Distrito Federal, evidencia caracteristicasdemograficas peculiares dessas lesoes, que sao compativeis com dados previos da literatura e mostra que a abordagem terapeutica multidisciplinar e essencial para seu correto tratamento.(AU) Objective: To assess the epidemiological profile of patients treated in the Neurosurgery Unit of the Hospital de Base of the Federal District (HBDF) reference unit of cerebrovascular diseases in the Federal District, as well as multidisciplinary treatment methods used and the clinical outcome. Methods: We performed a retrospective analysis of 42 patients with arteriovenous malformations (AVMs) in the brain admitted at Neurosurgery Service of HBDF between August 2007 and January 2012, treated conservatively or undergoing some type of intervention: intracranial microsurgery, embolization, combined technique or radiosurgery. Results: The gender distribution amounted a ratio of 1.1:1.0 (male:female). Predominated supratentorial localization (85%, 36/42). According to the Spetzler-Martin Scale (ESM), we observed a predominance of intermediate grades (grades II, III and IV) totaling 96% (40/42). Ten patients (24%, 10/42) were subjected to conventional surgical treatment, 22 patients (52%, 22/42) to embolization (endovascular treatment), 1 patient (2.38%, 1/42) the combined treatment (endovascular and surgery), 1 (2.38%, 1/42) radiosurgery and 8 patients (19.05% 8/42) were treated conservatively. The clinical evolution characterized by the modified Rankin Scale (EMR) showed statistical similarity with respect to several established treatments. Conclusion: The AVMs are congenital lesions that despite low prevalence are important target of study, since it affects mostly young adults and working age. This study, conducted in a referral center in the Federal District, shows peculiar demographic characteristics of these lesions, which are consistent with previous literature data and shows that the multidisciplinary therapeutic approach is essential for its proper treatment.(AU)

Perfil epidemiológico de malformações arteriovenosas encefálicas em uma série monocêntrica