Figure 1

Computed tomographic scan of the brain obtained after the event revealed the presence of air gases (arrow), which suggested the infusion of subdural air while attaching an extension tube with a syringe filled with a local anesthetic.
Computed tomographic scan of the brain obtained after the event revealed the presence of air gases (arrow), which suggested the infusion of subdural air while attaching an extension tube with a syringe filled with a local anesthetic.