Post-operative vestibular function outcomes evaluated by video Head Impulse Test in patients with non-vestibular schwannoma cerebellopontine angle tumors

IF 1.6 4区医学 Q2 OTORHINOLARYNGOLOGY

Auris Nasus Larynx Pub Date : 2025-02-01 DOI:10.1016/j.anl.2024.12.003

Keishi Fujiwara , Shinya Morita , Hiroaki Motegi , Shigeru Yamaguchi , Yukitomo Ishi , Kimiko Hoshino , Atsushi Fukuda , Hideaki Takeda , Yuji Nakamaru , Miki Fujimura , Akihiro Homma

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引用次数: 0

Abstract

Objectives

To evaluate post-operative semicircular canal function in patients with non-vestibular schwannoma (VS) cerebellopontine angle (CPA) tumors by video Head Impulse Test (vHIT).

Methods

Fourteen patients with non-VS CPA tumors who underwent surgery. The gain in vestibulo-ocular reflex (VOR) was examined pre- and post-operatively for the semicircular canals in patients with non-VS CPA tumors.

Results

Ten of 14 patients showed semicircular canal dysfunction in one or more of the semicircular canals pre-operatively and VOR gain was significantly correlated with hearing function. Two patients showed improvement in one or more semicircular canals at 1 month after surgery compared to the pre-operative results. Significant improvements in VOR gain were observed when comparing VOR gain at 1 month and 6 months after surgery.

Conclusions

Detailed evaluation of semicircular canal function was achieved by using vHIT in patients with non-VS CPA tumors. The good prognosis for vestibular function as evaluated by vHIT post-operatively was confirmed in patients with non-VS CPA tumors when compared to those in patients with VS. As improvement may occur post-operatively, surgical approaches that preserve the vestibular nerves and semicircular canals should be chosen for patients with non-VS CPA tumors, regardless of preoperative vestibular function. Even if vestibular function deteriorates immediately after surgery, it may improve over time if the nerve is preserved.

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视频脑脉冲试验评价非前庭神经鞘瘤脑桥小脑角肿瘤患者术后前庭功能预后。

目的：应用视频脑脉冲试验（vHIT）评价非前庭神经鞘瘤（VS）脑桥小脑角（CPA）肿瘤术后半规管功能。方法：14例非vs CPA肿瘤患者行手术治疗。对非vs CPA肿瘤患者术前、术后前庭-眼反射（VOR）增益进行了观察。结果：14例患者中有10例术前出现一条或多条半规管功能障碍，VOR增益与听力功能显著相关。与术前相比，术后1个月，2例患者显示一条或多条半规管改善。在术后1个月和6个月比较VOR增益时，观察到显著的改善。结论：在非vs CPA肿瘤患者中，vHIT可实现半规管功能的详细评估。与vs患者相比，非vs CPA患者术后vHIT评估的前庭功能预后较好，由于术后可能出现改善，对于非vs CPA患者，无论术前前庭功能如何，应选择保留前庭神经和半管管的手术入路。即使手术后前庭功能立即恶化，如果神经得到保护，它也可能随着时间的推移而改善。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Auris Nasus Larynx 医学-耳鼻喉科学

CiteScore

3.40

自引率

5.90%

发文量

169

审稿时长

30 days

期刊介绍： The international journal Auris Nasus Larynx provides the opportunity for rapid, carefully reviewed publications concerning the fundamental and clinical aspects of otorhinolaryngology and related fields. This includes otology, neurotology, bronchoesophagology, laryngology, rhinology, allergology, head and neck medicine and oncologic surgery, maxillofacial and plastic surgery, audiology, speech science. Original papers, short communications and original case reports can be submitted. Reviews on recent developments are invited regularly and Letters to the Editor commenting on papers or any aspect of Auris Nasus Larynx are welcomed. Founded in 1973 and previously published by the Society for Promotion of International Otorhinolaryngology, the journal is now the official English-language journal of the Oto-Rhino-Laryngological Society of Japan, Inc. The aim of its new international Editorial Board is to make Auris Nasus Larynx an international forum for high quality research and clinical sciences.