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Importance of High-Frequency Vestibular Function in the Prognosis of Bilateral Vestibulopathy

Authors
 Seong Hoon Bae  ;  Gi Sung Nam  ;  Sang Hyun Kwak  ;  Sung Huhn Kim 
Citation
 CLINICAL AND EXPERIMENTAL OTORHINOLARYNGOLOGY, Vol.14(2) : 192-199, 2021-05 
Journal Title
CLINICAL AND EXPERIMENTAL OTORHINOLARYNGOLOGY
ISSN
 1976-8710 
Issue Date
2021-05
Keywords
Bilateral Vestibulopathy ; Head Impulse Test ; Rehabilitation ; Semicircular Canals ; Vestibular Function Tests
Abstract
Objectives: The aim of this study was to investigate whether preserved vestibular function in the high-frequency range influences the prognosis of patients with bilateral vestibulopathy (BVP) after vestibular rehabilitation.

Methods: Twenty-four patients followed up with vestibular rehabilitation were recruited. The enrolled patients were divided into two groups according to the preservation of the high-frequency vestibulo-ocular reflex (VOR) based on the video head impulse test (vHIT). The results of computerized dynamic posturography and the Dizziness Handicap Inventory (DHI) survey collected at baseline and at the 6-month follow-up after vestibular rehabilitation therapy were analyzed.

Results: Both groups showed significantly increased composite and DHI scores after follow-up with vestibular rehabilitation. The group with preserved high-frequency VOR showed a better composite score (p=0.064) and vestibular score (p= 0.008) than the group with lost high-frequency VOR at the 6-month follow up. The DHI score significantly decreased only in the group with lost high-frequency VOR (p=0.047). Among the three vestibular function tests (caloric test, rotary chair test, and vHIT) used to diagnose BVP, only vHIT showed a significant correlation (p=0.015) with a favorable prognosis (composite score ≥70).

Conclusion: Better treatment outcomes are likely in patients with BVP with preserved vestibular function in response to high-frequency stimulation, as measured by the vHIT.
Files in This Item:
T202102931.pdf Download
DOI
10.21053/ceo.2020.01739
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
Yonsei Authors
Kwak, Sanghyun(곽상현) ORCID logo https://orcid.org/0000-0002-2827-8456
Kim, Sung Huhn(김성헌)
Nam, Gi-Sung(남기성)
Bae, Seong Hoon(배성훈) ORCID logo https://orcid.org/0000-0001-9243-9392
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/184370
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