Retrospective study of patients with Chiari: malformation submitted to surgical treatment

Arquivos de Neuro-Psiquiatria

Mário Augusto Taricco²  Luiz Ricardo Santiago Melo¹ 

[1] ,Universidade de São Paulo Faculdade de Medicina Hospital das ClínicasSão Paulo SP ,Brazil

关键词: Chiari malformation;    posterior fossa;    hindbrain malformations;    surgical treatment;    malformação de Chiari;    fossa posterior;    malformações do rombencéfalo;    tratamento cirúrgico;   

DOI  :  10.1590/S0004-282X2008000200008

来源: SciELO

【 摘 要 】

The Chiari malformation (CM) is characterized by variable herniation of one or both cerebellar tonsils, associated or not with displacement of the hindbrain structures into the vertebral canal. This is a retrospective study of 29 patients with CM submitted to surgical procedure between 1990 and 2003. There were 14 females and 15 males whose ages ranged from 16 to 65 years. There were seven patients with isolated CM, 12 associated with syringomyelia (SM), three associated with basilar impression (BI) and seven associated with SM and BI. The surgery was based on posterior fossa decompression. In seven patients a catheter was introduced from the subarachnoid space into the III ventricle and five were submitted to tonsillectomy. Twenty-one patients improved, one worsened, one remained unchanged, four missed follow up and two died. We conclude that the best results with CM surgery are obtained by an effective posterior fossa decompression. Those CM cases associated with other abnormalities, such as SM and BI, probably need complementary techniques which will be the theme for new prospective studies.

【 授权许可】

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