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: Blister aneurysms are of uncertain pathogenesis and are a vascular lesion located in the brain. Overall, they represent 0.3% - 1.0% of all intracranial aneurysms and 0.9% - 6.5% of ruptured intracranial aneurysms. They are associated with high morbidity and mortality. Even with the first description being from 1969, there is still debate in the literature about which type of treatment is the best: surgical or endovascular. In this review, we focus on the surgical management. Method : The authors performed a review of available surgical techniques used for blood blister-like aneurysms treatment. Pubmed database was used as search source introducing blister-like aneurysm and blister aneurysms as keywords. The most relevant articles and those that focused on surgical treatment techniques were selected. Discussion: The most used surgical methods are clipping, trapping, wrapping and bypass. As main features of each technique, we can highlight clipping with good efficiency, when there is good neck exposure; trapping being employed in ruptured aneurysm; wrapping for avulsion and bypass that promotes vascularization to the distal territory of the aneurysm. Conclusion : The endovascular method has shown to be promising and efficient. However, different surgical techniques are still being employed based on their efficiency when facing certain surgical scenarios. Keywords : Neurosurgery, Subarachnoid hemorrhage, Intracranial aneurysm, Endovascular procedures RESUMO Introducao: Aneurismas cerebrais blister-like sao lesoes vasculares de patogenia incerta. De modo geral, representam 0.3%-1.0% de todos aneurismas intracranianos e 0.9% - 6.5% dos aneurismas intracranianos que rompem. Estao associados a alta morbimortalidade. Mesmo com a primeira descricao sendo de 1969, ainda ha debate na literatura sobre qual tipo de tratamento e o melhor: cirurgico ou endovascular. Nessa revisao, focamos no tratamento cirurgico. Metodos : Os autores realizaram uma revisao das tecnicas cirurgicas utilizadas para tratamento de aneurismas blister-like. A plataforma Pubmed foi utilizada para a pesquisa das palavras chaves “blister-like aneurysm” e “blister aneurysm”. Os artigos de maior relevância e aqueles que enfatizam as tecnicas cirurgicas foram selecionados. Discussao: Os metodos cirurgicos empregados sao clipagem, trapping, wrapping e bypass. Quanto as caracteristicas de cada metodo, podemos salientar a eficacia da clipagem, quanto melhor for a exposicao do aneurisma; o uso do trapping em situacoes de rompimento do aneurisma; wrapping para casos em que houve avulsao do aneurisma e by-pass que promove a vascularizacao distal ao aneurisma. Conclusao : O metodo endovascular tem se mostrado promissor e efetivo. No entanto, as diferentes tecnicas cirurgicas ainda sao empregadas e defendidas devido a sua eficiencia frente certos cenarios cirurgicos. Descritores : Neurocirurgia, Hemorragia subaracnoidea, Aneurisma intracraniano, Procedimentos endovasculares

Blister like aneurysm: a review about its surgical management / Aneurismas blister-like: uma revisão sobre seu manejo cirúrgico