Intractable brain swelling during cerebral arteriovenous malformation surgery due to contralateral acute subdural haematoma

Severe brain swelling during routine neurosurgery can herald serious consequences. Failure to control brain swelling despite adequate measures warns of a surgical cause and should be dealt efficiently. We report a case of an adult female who developed intraoperative acute subdural haematoma (SDH) and consequent intractable brain swelling during surgery of supratentorial arteriovenous malformation (AVM). Such a manifestation of contralateral acute SDH during supratentorial AVM surgery has not been reported earlier.