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Original Articles
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Impairment of Vestibular Function in Patients with Vestibular Schwannoma According to the Presence of Dizziness
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Youngjeong Lee, Se A Lee, Eek-Sung Lee, Tae-Kyeong Lee, Jong Dae Lee
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Res Vestib Sci. 2022;21(3):75-79. Published online September 15, 2022
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DOI: https://doi.org/10.21790/rvs.2022.21.3.75
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Abstract
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- Objectives
Vestibular schwannoma (VS) is a benign Schwann cell-derived slow growing tumor originating from the vestibular nerve. Here, we aimed to investigate the correlation between the presence of the dizziness symptoms and several vestibular function test results.
Methods
We analyzed 32 patients who diagnosed with VS from 2010 to 2021 in our hospital. Caloric test, cervical vestibular-evoked myogenic potential (cVEMP) test, and video head impulse test (vHIT) were analyzed.
Results
Age, sex, pure tone audiometry, and tumor size did not show any statistical significance according to the presence or absence of dizziness. There was also no association between the presence of dizziness symptom or dizziness type and the results of the caloric test, vHIT, and cVEMP test, respectively. However, patients with dizziness had a higher rate of tumors confined to the inner auditory canal than those without dizziness.
Conclusions
In this study, the rate of complaints of dizziness was higer in patients with intracanalicular VS. The diagnostic role of vestibulsr function tests in VS is limited. The dissociation of the results of caloric test, vHIT, and cVEMP test suggest that these test are complementary.
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Vestibular Function and Prognosis of Sudden Sensorineural Hearing Loss with Vertigo
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Se A Lee, Hyo Jun Kim, Bo Gyung Kim, Jong Dae Lee
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Res Vestib Sci. 2018;17(3):90-94. Published online September 18, 2018
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DOI: https://doi.org/10.21790/rvs.2018.17.3.90
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Abstract
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- Objectives
Vertigo combined with sudden sensorineural hearing loss (SSNHL) is known as a poor prognostic factor. We investigated clinical findings and vestibular function tests in patients of SSNHL with vertigo to find the prognostic factors.
Methods
We retrospectively evaluated data on the patients diagnosed with SSNHL with vertigo at Bucheon Soonchunhyang University Hospital from March 2009 to February 2018. We reviewed medical records and the results of vestibular function tests and audiometry.
Results
Of the 68 patients, 30 (44.1%) showed profound hearing loss and 53 (77.9%) showed poor recovery. Age and the degree of initial hearing loss showed negative prognostic factor in hearing recovery. Abnormal results of cervical vestibular evoked myogenic potentials (cVEMP) also showed significantly differences between good and poor recovery groups.
Conclusions
In this study, most of the patients of SSNHL with vertigo showed poor recovery. Age, degree of initial hearing loss, and the abnormal result of the cVEMP have a negative effect on the prognosis of hearing recovery.