RESUMO
Some arteriovenous malformations (A.V.M.s) visualized on a first angiography tend to enlarge gradually with time. Others A.V.M.s may decrease in size and even disappear. The authors report the case of a 18 year old woman admitted for a subarachnoid hemorrhage. A complete cerebral angiography was normal. Nine years later, an arteriovenous malformation of the corpus callosum was discovered. The reasons why angiography may fail to demonstrate an A.V.M., and the theories concerning the enlargement of A.V.M.S., are discussed.
Assuntos
Corpo Caloso/irrigação sanguínea , Malformações Arteriovenosas Intracranianas/diagnóstico por imagem , Adolescente , Feminino , Humanos , Malformações Arteriovenosas Intracranianas/fisiopatologia , Radiografia , Fatores de TempoRESUMO
The authors report 121 cases of surgically treated severe lesions of the dorsolumbar spine. One single technique has been used: posterior osteosynthesis using Roy-Camille's plates.
Assuntos
Fixação Interna de Fraturas/instrumentação , Vértebras Lombares/lesões , Adolescente , Adulto , Idoso , Placas Ósseas , Parafusos Ósseos , Feminino , Humanos , Ligamentos Articulares/lesões , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , CicatrizaçãoRESUMO
The authors report 102 cases of severe lesions of the lower cervical spine, in which operation was mandatory. The characteristics of these fractures are discussed, together with the different operative procedures. Posterior osteosynthesis using Roy-Camille's plates was preferred.