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

Authors
 In Seok Moon  ;  Dongchul Cha  ;  Sung-Il Nam  ;  Hyun-Jin Lee  ;  Jae Young Choi 
Citation
 Journal of Neurological Surgery. Part B, Skull Base, Vol.80(1) : 82-87, 2019 
Journal Title
 Journal of Neurological Surgery. Part B, Skull Base 
ISSN
 2193-6331 
Issue Date
2019
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-to-profound 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. The mean follow-up period was 12.9 months. 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  The modified EETTA was effective in the removal of VSs in the IAC. It can be an alternative surgical option for small VSs.
Full Text
https://www.thieme-connect.com/products/ejournals/abstract/10.1055/s-0038-1667061
DOI
10.1055/s-0038-1667061
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
Yonsei Authors
Moon, In Seok(문인석) ORCID logo https://orcid.org/0000-0002-3951-5074
Cha, Dongchul(차동철) ORCID logo https://orcid.org/0000-0002-0043-5026
Choi, Jae Young(최재영) ORCID logo https://orcid.org/0000-0001-9493-3458
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/170915
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