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부분 미로 절제술을 이용한 추체-경사대 접근법 11례: 수술전후의 청력변화 비교

안중호1, 이광선1,*, 윤태현1, 정종우1, 김창진1
Joong Ho Ahn1, Tae Hyun Yoon1,*, Jong Woo Chung1, Kwang-Sun Lee1, Chang Jin Kim1
Author Information & Copyright
1울산대학교 의과대학 서울중앙병원 이비인후과학교실
2신경외과학교실
1Department of Otolaryngology, Asan Medical Center University of Ulsan College of Medicine, Seoul, Korea
2Neurosurgery, Asan Medical Center University of Ulsan College of Medicine, Seoul, Korea
*교신저자: 이광선, 138-736 서울 송파구 풍납동 388-1 울산대학교 의과대학 서울중앙병원 이비인후과학교실 전화: (02) 224-3710· 전송: (02) 489-2773 E-mail: kslee2@www.amc.seoul.kr.

© Copyright 2000 The Busan, Ulsan, Gyeoungnam Branch of Korean Society of Otolaryngology-Head and Neck Surgery. 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.

Received: Feb 07, 2000; Accepted: May 19, 2000

Published Online: May 31, 2020

ABSTRACT

Background: Among many modalities for treatment of petrous-clivus lesion, partial labyrinthectomy approach is a method for hearing preservation. Objects and Methods: We reviewed 10 patients of skull base tumor and 1 patient of congenital cholesteatoma. Pure tone audiometry was checked before and 3 months after the surgery. Results: The lesions treated included 6 petroclival meningiomas, 3 clivual neoplasms (2 meningioma and 1 cholesteatoma) and 2 Cerebellopontine angle neurogliomas. Sacrificed semicircular canals were 3 cases of superior and lateral canals and 8 cases of superior and posterior canals. With exception of 4 cases of scale-out, average bone conduction decreased from preoperative 21.2 dB to postoperative 50.4 dB. Average speech discrimination score decreased to 32.7%. 2 cases preserved their serviceable hearing level. Conclusion: Partial labyrinthectomy approach can be helpful for patients who want to maintain normal hearing level with further modification and efforts. (J Clinical Otolaryngol 2000;11:133–136)

Keywords: 부분미로 적출술
Keywords: Partial labyrinthectomy; Petroclival; Clival