Sub-occipital Decompression for Chiari Malformation

A Chiari decompression is a specific type of craniotomy designed to make more room for the herniated cerebellum, and to relieve pressure on the brain. It also may permit restoration of the normal flow of cerebrospinal fluid (CSF) round the brain and sometimes results in an improvement in any associated hydrocephalus, hydromyelia, or syringmyelia.