Significance of wave I loss of brainstem auditory evoked potentials during microvascular decompression surgery for hemifacial spasm
- Authors
- Joo, Byung-Euk; Park, Sang-Ku; Lee, Min Ho; Lee, Seunghoon; Lee, Jeong-A; Park, Kwan
- Issue Date
- Apr-2020
- Publisher
- Elsevier BV
- Keywords
- Brainstem auditory evoked potentials; Hemifacial spasm; Microvascular decompression; Postoperative hearing loss
- Citation
- Clinical Neurophysiology, v.131, no.4, pp 809 - 815
- Pages
- 7
- Journal Title
- Clinical Neurophysiology
- Volume
- 131
- Number
- 4
- Start Page
- 809
- End Page
- 815
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/2979
- DOI
- 10.1016/j.clinph.2019.12.409
- ISSN
- 1388-2457
1872-8952
- Abstract
- Objective: We sought to define the significance of wave I loss of brainstem auditory evoked potentials (BAEPs) during microvascular decompression (MVD) surgery for hemifacial spasm. Methods: Out of 670 patients, 36 showed wave V loss during MVD surgery. These patients were classified into the following two groups based on wave I loss: Total wave loss, including wave I loss, and wave V loss with persistent wave I. We analyzed the differences in postoperative complications between the groups. We also investigated when wave I loss occurred during MVD surgery. Results: Of the 36 patients, 24 (66.7%) exhibited wave I persistence and 12 (33.3%) exhibited total wave loss. The patients who showed total wave loss were significantly more likely to exhibit postoperative hearing loss (p = 0.009). In addition, these patients exhibited a significantly higher frequency of postoperative complications such as dizziness and tinnitus (p = 0.002 and p = 0.031, respectively). Total wave loss occurred more frequently after the decompressive procedure of MVD surgery. Conclusions: Total wave loss, including wave I loss, was more closely associated with severe postoperative complications. Total wave loss occurred more frequently after the decompressive procedure of MVD surgery. Significance: These findings suggest the significance of wave I loss of BAEPs. (C) 2020 International Federation of Clinical Neurophysiology. Published by Elsevier B.V. All rights reserved.
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Collections - College of Medicine > Department of Neurology > 1. Journal Articles
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