RESUMO
Bilateral sixth nerve paresis following closed head injury, though rare, is a known entity. However, delayed-onset post-traumatic bilateral abducens paresis is extremely rare. We present two cases. The first patient had onset of bilateral abducens paresis 2 weeks after closed head injury and the second patient after 3 days. The cause in the former was detected to be chronic subdural hematoma and in the latter is speculated to be edema/ischemia due to injury to soft tissue structures housing these nerves. The delayed onset of bilateral abducens paresis following head injury may vary according to the cause. There may be another mechanism of injury apart from direct trauma. Though rare, it needs to be evaluated and may have a treatable cause like elevated intracranial pressure.
Assuntos
Traumatismo do Nervo Abducente/etiologia , Traumatismo do Nervo Abducente/diagnóstico por imagem , Acidentes de Trânsito , Adulto , Traumatismos Cranianos Fechados/complicações , Traumatismos Cranianos Fechados/diagnóstico por imagem , Hematoma Subdural Crônico/diagnóstico por imagem , Humanos , Masculino , Fatores de Tempo , Tomografia Computadorizada por Raios XAssuntos
Adolescente , Rinorreia de Líquido Cefalorraquidiano/diagnóstico por imagem , Derivações do Líquido Cefalorraquidiano , Traumatismos Cranianos Fechados/diagnóstico por imagem , Humanos , Pressão Intracraniana/fisiologia , Masculino , Pneumocefalia/diagnóstico por imagem , Complicações Pós-Operatórias/diagnóstico por imagem , Tomografia Computadorizada por Raios X , TrepanaçãoRESUMO
Fourteen patients with injury to the anterior optic pathways have been presented and analysed. Their clinical profile, radiological data and problems involved therein have been discussed. Since an expectant policy has been the rule so far, an attempt has been made to define the role of surgery in such cases.