RESUMO
BACKGROUND: Awake craniotomy allows continuous assessment of a patient's clinical and neurological status during open brain surgery. This facilitates early detection of interference with eloquent cortex, and hence can allow a surgeon to maximize resection margins without compromising neurological function. METHODS: Awake craniotomy requires an effective scalp blockade, intraoperative assessment, and a carefully co-ordinated theatre team. A variety of clinical and electrophysiological techniques can be used to assess cortical function. CONCLUSIONS: Effective scalp blockade and awake craniotomy provides the opportunity to intraoperatively assess cortical function in the awake patient, thus providing an important neurosurgical option for lesions near eloquent cortex.