Case Report
Copyright ©The Author(s) 2021. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Cases. Sep 6, 2021; 9(25): 7512-7519
Published online Sep 6, 2021. doi: 10.12998/wjcc.v9.i25.7512
Awake craniotomy for auditory brainstem implant in patients with neurofibromatosis type 2: Four case reports
De-Xiang Wang, Shuo Wang, Min-Yu Jian, Ru-Quan Han
De-Xiang Wang, Shuo Wang, Min-Yu Jian, Ru-Quan Han, Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
Author contributions: Wang DX and Wang S contributed equally to this work; Wang DX and Wang S were four patients’ anesthesiologists, reviewed the literature, and contributed to manuscript drafting; Jian MY contributed to the revision of the manuscript; Han RQ was responsible for the revision of the manuscript for important intellectual content; all authors have read and approve the final manuscript.
Supported by Beijing Municipal Administration of Hospitals Ascent Plan, No. DFL20180502.
Informed consent statement: Written informed consent was obtained from the patients’ families for the publication of this case series and the accompanying images.
Conflict-of-interest statement: The authors declare that they have no conflict of interest to state.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ru-Quan Han, MD, Chief Doctor, Professor, Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, No. 119 Southwest 4th Ring Road, Fengtai District, Beijing 100070, China. ruquan.han@ccmu.edu.cn
Received: February 8, 2021
Peer-review started: February 8, 2021
First decision: June 7, 2021
Revised: June 9, 2021
Accepted: August 4, 2021
Article in press: August 4, 2021
Published online: September 6, 2021
Core Tip

Core Tip: The auditory brainstem implant (ABI) is a significantly beneficial treatment to restore hearing sensations for neurofibromatosis type 2 (NF2) patients. However, there is no ideal method in assisting the placement of ABI. The asleep-awake-asleep technique was applied for awake craniotomy and hearing test via the retrosigmoid approach for acoustic neuromas resections and ABI in four NF2 patients. ABI electrode arrays were placed in the awake phase with successful intraoperative hearing tests in three patients. There was one uncooperative patient whose awake hearing test needed to be aborted due to her restlessness. In all cases, tumor resection and ABI were performed safely. The awake craniotomy is beneficial to improve the accuracy of electrode placement in the ABI and meanwhile reduces non-auditory side effects.