The semicircular canal function tests contribute to identifying unilateral idiopathic sudden sensorineural hearing loss with vertigo

Guan, Rui-Rui; Zhu, Zhen; Guo, Xiao-Tao; Sun, Jingwu

doi:10.1016/j.amjoto.2020.102461

Cited by 15 publications

(20 citation statements)

References 14 publications

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“…In our study, we found that VEOs may be impaired not only in SSNHL patients with vertigo but also in those without vertigo. The results were consistent with previously reported results ( 19 , 31 ). It is generally accepted that cochlear and vestibular impairment could be more serious in patients with vertigo than in those without vertigo ( 16 ).…”

Section: Discussionsupporting

confidence: 94%

“…Although a number of studies have described the involvement of vestibular dysfunction in SSNHL patients with vertigo, results have varied widely ( 16 – 19 ). One reason for this dissimilarity is that related studies did not consider hearing classification, and the included groups were heterogeneous.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, different types of audiogram configurations may indicate different pathogeneses according to German SSNHL guidelines ( 21 ). Vestibular dysfunction involvement presenting with vertigo is more common in patients with profound hearing loss ( 19 , 20 , 22 ). Thus, studies on vestibular function tests in SSNHL with or without vertigo are indispensable according to their initial pure-tone average (PTA) and it is necessary to study the vestibular function in profound SSNHL patients.…”

Section: Introductionmentioning

confidence: 99%

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Contribution of Audiogram Classification in Evaluating Vestibular Dysfunction in Sudden Sensorineural Hearing Loss With Vertigo

et al. 2021

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Object: We aimed to identify the relationship between vertigo symptoms and the involvement of vestibular dysfunction in sudden sensorineural hearing loss (SSNHL) and the contribution of audiogram classification.Methods: A total of 50 patients with unilateral SSNHL were retrospectively divided into the vertigo group and non-vertigo group depending on the presence of vertigo. The involved vestibular end organs (VEOs) were verified by a battery of vestibular function tests including video head impulse test (vHIT), cervical vestibular-evoked myogenic potential (cVEMP), and ocular VEMP (oVEMP). The correlations of audiogram configurations, initial pure-tone average (PTA), number of involved VEOs, prognosis (complete recovery rate), and vestibular functions were analyzed between the two groups. Additionally, the vestibular functions in a subgroup of profound SSNHL patients were further compared within groups with or without vertigo.Results: Significant differences in the initial audiogram configurations (p = 0.033) and the abnormal rates of the posterior semicircular canal (PSC) (p = 0.035) and oVEMP (p = 0.046) were found between the two groups. The number of involved VEOs was related to the initial PTA in the vertigo group (p = 0.002, r = 0.541) and non-vertigo group (p = 0.042, r = 0.446). The prognosis was related to the abnormal rate of cVEMP and the number of involved VEOs in both vertigo group (p = 0.008, r = 0.482; p = 0.039, r = 0.385, respectively) and non-vertigo group (p = 0.016, r = 0.520; p = 0.022, r = 0.495, respectively), and it was especially related to the audiogram configurations in the vertigo group (p < 0.001, r = 0.692). However, after classification by audiogram configurations, there was no statistical difference in the abnormal rates of all vestibular function tests or the number of involved VEOs between the profound SSNHL patients with or without vertigo.Conclusion: The relationship between the involvement of vestibular dysfunction and vertigo symptoms in patients with SSNHL was significantly different before and after audiogram classification. When evaluating the vestibular dysfunction in SSNHL patients, more attention should be paid to the audiogram configuration.

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Section: Discussionsupporting

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Contribution of Audiogram Classification in Evaluating Vestibular Dysfunction in Sudden Sensorineural Hearing Loss With Vertigo

et al. 2021

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“…There were 162 (86%) patients with vertigo. Vertigo is known to be a negative prognostic factor ( Guan et al, 2020 ). Simultaneous vestibular and cochlear impairment may be more serious in patients with vertigo than in those without vertigo.…”

Section: Discussionmentioning

confidence: 99%

Idiopathic Sudden Sensorineural Hearing Loss in Different Ages: Prognosis of Patients With Initial Total Hearing Loss

et al. 2022

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ObjectiveThis study aimed to analyze the hearing improvement and prognosis factors of idiopathic sudden sensorineural hearing loss (ISSNHL) in different ages with initial total hearing loss.MethodsWe reviewed the medical records of 5,711 hospitalized patients with ISSNHL from 2016 to 2021 in our center. All of the patients had been treated with uniform combination drug therapy. After excluding the patients with initial partial hearing loss and those diagnosed with clear etiology, 188 patients were enrolled in this study and divided into six age groups (18–30, 31–40, 41–50, 51–60, 61–70, ≥ 71 years). In all groups, decreases in pure-tone average (PTA) 1 month posttreatment, effective rate, and clinical characteristics (vertigo, tinnitus, hospital stay, comorbidity, and inner ear magnetic resonance imaging) were analyzed.ResultsAmong the 188 enrolled patients, 86% had vertigo. Complete recovery was seen in 0.5% of patients, and marked recovery was seen in 43% of patients. The mean 1 month posttreatment PTAs were as follows: 18–30 years: 80 ± 7.5 dB; 31–40 years: 100 ± 9.0 dB; 41–50 years: 99 ± 8.3 dB; 51–60 years: 101 ± 8.6 dB; 61–70 years: 96 ± 9.6 dB; and ≥ 71 years: 88 ± 13.0 dB. Compared with the other groups, the 18–30- years group showed better recovery of hearing threshold in five frequencies (0.25, 0.5, 1, 2, and 4 kHz, respectively, at octave or semioctave frequencies under air conduction), and the recovery of hearing threshold at 0.25 and 0.5 Hz was better than the recovery at 1, 2, and 4 kHz. According to the results of the chi-square test statistical analysis, vertigo and comorbidities were associated with a poor prognosis of ISSNHL.ConclusionIn summary, the treatment outcomes of patients with ISSNHL with initial total hearing loss were poor. There was a significant age-related difference with respect to marked recovery 1 month posttreatment, and the 18–30- years group showed better recovery than the other age groups.

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“…vHIT, with its capacity to assess six SSC functions, is a valuable and effective method in the diagnosis, evaluation, and rehabilitation of peripheral vestibular disorders such as labyrinthitis and neuronitis ( 10 , 11 ). There are many recent studies in the literature that have assessed hearing loss and the effects of medication on the semicircular canals with vHIT ( 12 , 13 ). VOR is generated by the eye moving at the same speed as the head but in the opposite direction during a head movement to gaze at an object, and the ratio of eye speed to head velocity is called gain and is "1" in healthy people ( 14 , 15 ).…”

Section: Discussionmentioning

confidence: 99%

Instantaneous Gain in Video Head Impulse Test: A Reliability Study

Kabiş¹,

Tutar²,

Gündüz³

et al. 2022

TAO

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Objective: Vestibulo-ocular reflex gain at 40, 60, and 80 ms following the head movement start is calculated as the instantaneous gain. The purpose of this study was to investigate the reliability of instantaneous gain values at 40, 60, and 80 ms with testing and retesting in healthy adults. Methods: The study was conducted with Interacoustics EyeSeeCam vHIT (Interacoustics, Denmark), and 42 healthy adults were evaluated twice at half-hour intervals (test and retest) by the same practitioner. Agreement of mean gain, gain asymmetry, and instantaneous gain was evaluated using a paired samples t-test. Results: Mean age of the participants was 33.62±11.17; 38.1% were male and 61.9% were female. In the degree of the agreement, paired sample correlation (r) between test and retest results of the horizontal semicircular canals was found to be higher than those of the vertical semicircular canals. Moreover, the highest correlation between test and retest for instantaneous gain, calculated for only horizontal semicircular canals, was found at 80 ms on each side (0.791; 0.838, right and left, respectively), while the lowest correlation between these parameters was found between the gain asymmetry values. Conclusion: The video head impulse test used in studies calculates the mean gain in approximately at 60 ms. However, the higher correlation between mean gain values at 80 ms in our findings indicates that gain calculation strategies and techniques for latencies should be discussed. Additionally, the low correlation of vertical semicircular canals for mean gain and gain asymmetry between semicircular canal pairs, which clearly shows that more standard and more reliable methods should be developed.

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The semicircular canal function tests contribute to identifying unilateral idiopathic sudden sensorineural hearing loss with vertigo

Cited by 15 publications

References 14 publications

Contribution of Audiogram Classification in Evaluating Vestibular Dysfunction in Sudden Sensorineural Hearing Loss With Vertigo

Contribution of Audiogram Classification in Evaluating Vestibular Dysfunction in Sudden Sensorineural Hearing Loss With Vertigo

Idiopathic Sudden Sensorineural Hearing Loss in Different Ages: Prognosis of Patients With Initial Total Hearing Loss

Instantaneous Gain in Video Head Impulse Test: A Reliability Study

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