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Updated: Mar 11, 2026
Intra-Operative Behavioral Tasks in Awake Humans Undergoing Deep Brain Stimulation Surgery
Published on: January 6, 2011
Intraoperative seizures and seizures outcome in patients undergoing awake craniotomy
Yang Yuan1, Zhou Peizhi1, Wang Xiang1
1Department of Neurosurgery, West China Hospital, Si Chuan University, Chengdu, China.
Introduction:
Awake craniotomies (AC) could reduce neurological deficits compared with patients under general anesthesia, however, intraoperative seizure (IOS) is a major reason causing awake surgery failure. The purpose of the study was to give a comprehensive overview the published articles focused on seizure incidence in AC.
Evidence Acquisition:
Bibliographic searches of the Embase, Medline, were performed to identify articles and conference abstracts that investigated the IOS frequency of patients underwent AC.
Evidence Synthesis:
Twenty-five studies were included in this meta-analysis. Among the 25 included studies, one was randomized controlled trials and 5 of them were comparable studies. The pooled data suggested the general IOS rate for patients with AC was 8% (fixed effect model), sub-group analysis identified IOS rate for glioma patients was 8% and low grade patients was 10%. The pooled data showed early seizure rates of AC patients was 11% and late seizure rates was 35%.
Conclusions:
This systematic review and meta-analysis shows that AC is a safe technique with relatively low IOS occurrence. However, few RCTs were available, and the acquisition of further evidence through high-quality RCTs is highly recommended.
