• J Neurosurg Anesthesiol · Oct 2022

    Multicenter Study

    Brain Cancer Progression: A Retrospective Multicenter Comparison of Awake Craniotomy Versus General Anesthesia in High-grade Glioma Resection.

    • Tumul Chowdhury, Kristen Gray, Mohit Sharma, Christine Mau, Sarah McNutt, Casey Ryan, Noa Farou, Patrick Bergquist, Catherine Caldwell, Alberto A Uribe, Alexandre B Todeschini, Sergio D Bergese, Oliver Bucher, Grace Musto, Emad Al Azazi, Gelareh Zadeh, Derek S Tsang, Seyed A Mansouri, Saranya Kakumanu, and Lashmi Venkatraghavan.
    • Department of Anesthesia and Pain Medicine, Toronto Western Hospital.
    • J Neurosurg Anesthesiol. 2022 Oct 1; 34 (4): 392-400.

    BackgroundHigh-grade gliomas impose substantial morbidity and mortality due to rapid cancer progression and recurrence. Factors such as surgery, chemotherapy and radiotherapy remain the cornerstones for treatment of brain cancer and brain cancer research. The role of anesthetics on glioma progression is largely unknown.MethodsThis multicenter retrospective cohort study compared patients who underwent high-grade glioma resection with minimal sedation (awake craniotomy) and those who underwent craniotomy with general anesthesia (GA). Various perioperative factors, intraoperative and postoperative complications, and adjuvant treatment regimens were recorded. The primary outcome was progression-free survival (PFS); secondary outcomes were overall survival (OS), postoperative pain score, and length of hospital stay.ResultsA total of 891 patients were included; 79% received GA, and 21% underwent awake craniotomy. There was no difference in median PFS between awake craniotomy (0.54, 95% confidence interval [CI]: 0.45-0.65 y) and GA (0.53, 95% CI: 0.48-0.60 y) groups (hazard ratio 1.05; P <0.553). Median OS was significantly longer in the awake craniotomy (1.70, 95% CI: 1.30-2.32 y) compared with that in the GA (1.25, 95% CI: 1.15-1.37 y) group (hazard ratio 0.76; P <0.009) but this effect did not persist after controlling for other variables of interest. Median length of hospital stay was significantly shorter in the awake craniotomy group (2 [range: 0 to 76], interquartile range 3 d vs. 5 [0 to 98], interquartile range 5 for awake craniotomy and GA groups, respectively; P <0.001). Pain scores were comparable between groups.ConclusionsThere was no difference in PFS and OS between patients who underwent surgical resection of high-grade glioma with minimal sedation (awake craniotomy) or GA. Further large prospective randomized controlled studies are needed to explore the role of anesthetics on glioma progression and patient survival.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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