• Rafael Teixeira Magalhaes Leal, Bruno Mendonça Barcellos, and Jose Alberto Landeiro.
• Department of Neurosurgery, Universidade Federal Fluminense, Hospital Universitário Antonio Pedro, Niterói, Rio de Janeiro, Brazil. Electronic address: rafael_tmleal@yahoo.com.br.
• World Neurosurg. 2018 May 1; 113: 67-72.

BackgroundBrain tumor surgery near or within eloquent regions is increasingly common and is associated with a high risk of neurologic injury. Awake craniotomy with mapping has been shown to be a valid method to preserve neurologic function and increase the extent of resection. However, the technique used varies greatly among centers. Most count on professionals such as neuropsychologists, speech therapists, neurophysiologists, or neurologists to help in intraoperative patient evaluation. We describe our technique with the sole participation of neurosurgeons and anesthesiologists.MethodsA retrospective review of 19 patients who underwent awake craniotomies for brain tumors between January 2013 and February 2017 at a tertiary university hospital was performed. We sought to identify and describe the most critical stages involved in this surgery as well as show the complications associated with our technique.ResultsPreoperative preparation, positioning, anesthesia, brain mapping, resection, and management of seizures and pain were stages deemed relevant to the accomplishment of an awake craniotomy. Sixteen percent of the patients developed new postoperative deficit. Seizures occurred in 24%. None led to awake craniotomy failure.ConclusionsWe provide a thorough description of the technique used in awake craniotomies with mapping used in our institution, where the intraoperative patient evaluation is carried out solely by neurosurgeons and anesthesiologists. The absence of other specialized personnel and equipment does not necessarily preclude successful mapping during awake craniotomy. We hope to provide helpful information for those who wish to offer function-guided tumor resection in their own centers.Copyright © 2018 Elsevier Inc. All rights reserved.

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