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The Feasibility of a Modified Exclusive Endoscopic Transcanal Transpromontorial Approach for Vestibular Schwannomas

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Affiliated Author(s)
남성일
Alternative Author(s)
Nam, Sung Il
Journal Title
Journal of Neurological Surgery Part B : Skull Base
ISSN
2193-634X
Issued Date
2019
Keyword
cochleaacoustic neuroma
Abstract
Objective
We evaluated the feasibility of an exclusive endoscopic transcanal transpromontorial approach (EETTA) for the treatment of small vestibular schwannomas (VSs) limited to the internal auditory canal (IAC), and introduced a modification without external auditory canal closure.

Methods
Between June 2016 and June 2017, seven patients with VS underwent surgery using a modified EETTA. Treatment outcomes, including efficacy of tumor resection, preservation of function, operation time, and quality of life (QOL), were evaluated.

Results
The patients preoperatively exhibited Koos Grade I/II tumors and severe-toprofound hearing loss. Gross total resection was accomplished in all cases. There were no major complications, and all patients exhibited normal facial nerve function immediately after surgery. Themean follow-up period was 12.9months. The operation time (average 196.3 64.9 minutes) and hospitalization period (average 7.4 1.0 days) were favorable. Short Form-36 scores for QOL showed unremarkable results compared with previous reports.

Conclusions
Themodified EETTA was effective in the removal of VSs in the IAC. It can be an alternative surgical option for small VSs.
Department
Dept. of Otorhinolaryngology (이비인후과학)
Publisher
School of Medicine (의과대학)
Citation
In Seok Moon et al. (2019). The Feasibility of a Modified Exclusive Endoscopic Transcanal Transpromontorial Approach for Vestibular Schwannomas. Journal of Neurological Surgery Part B : Skull Base, 80(1), 82–87. doi: 10.1055/s-0038-1667061
Type
Article
ISSN
2193-634X
DOI
10.1055/s-0038-1667061
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/41856
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학)
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