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Surgical outcomes of vestibular schwannoma in the low-volume center
J Korean Skull Base Soc 2023;18(2):85-91
Published online October 31, 2023
© 2023 Korean Skull Base Society.

Jae-Woong Lee1, Hyuk-Jin Oh2, Jong-Hyun Park2, Gi-Yong Yoon2, Jae-Min Ahn2, Seok-Mann Yoon2

1Department of Neurosurgery, Soonchunhyang University Seoul Hospital, Seoul, Korea
2Department of Neurosurgery, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
Correspondence to: Hyuk-Jin Oh
E-mail schnsohj@gmail.com
ORCID https://orcid.org/0000-0001-7189-1267
Received June 23, 2023; Revised July 9, 2023; Accepted July 10, 2023.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Background: This study aims to evaluate retrospectively the surgical outcomes and associated complications of vestibular schwannoma in a low-volume, single-center institution. We intend to discuss strategies that may improve clinical outcomes in the surgical treatment of vestibular schwannoma in low-volume medical centers and the correlation between the case volume of medical center and clinical outcomes.
Materials and Methods: From January 2018 to December 2022, 13 patients (5 males and 8 females; median age, 66 years) underwent surgery for vestibular schwannoma. The surgeries were performed by a single surgeon who initiated the clinical practice. The median length of tumors was 35 mm (range, 13–55 mm).
Results: Among 13 patients, 10 patients (76.9%) underwent retromastoid suboccipital craniotomy, 3 patients (23.1%) underwent translabyrinthine approach, 4 patients (30.8%) underwent subtotal resection, 6 patients (46.2%) underwent near-total resection, and 3 patients (23.1%) underwent gross total resection. The facial nerve preservation rate was 84.6% (n = 11). Hearing preservation rate was 30.7% (n = 4).
Conclusions: The surgical outcomes of vestibular schwannoma are not directly influenced by the volume of the medical institution. Instead, they are dependent on factors such as proper surgical planning, appropriate selection of surgical approaches and using intraoperative monitoring.
Keywords : Vestibular schwannoma, Translabyrinthine approach, Retromastoid approach

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