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Moreno A, Castillo-Bustamante M, Prieto JA. Balancing Act: A Comprehensive Review of Vestibular Evaluation in Cochlear Implants. Cureus 2024; 16:e55261. [PMID: 38425330 PMCID: PMC10903968 DOI: 10.7759/cureus.55261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/29/2024] [Indexed: 03/02/2024] Open
Abstract
Cochlear implantation, a transformative intervention for individuals with profound hearing loss, has evolved significantly over the years. However, its impact on the vestibular system, responsible for balance and spatial orientation, remains a subject of ongoing research and clinical consideration. This narrative review highlights key aspects of vestibular evaluation in patients undergoing cochlear implantation. Preoperative vestibular assessment is crucial to establish baseline vestibular function and identify any pre-existing balance issues. Various tests, including caloric, rotational chair, vestibular-evoked myogenic potential, and video head impulse tests, play a vital role in evaluating vestibular function. The goal is to assess the risk of vestibular disturbances arising from the surgery, guide surgical planning, and detect pre-existing alterations that could be totally or partially compensated. While some patients experience minimal vestibular disruptions, others may encounter transient or persistent balance issues following cochlear implant surgery. Postoperative vestibular testing allows for the early detection of such disturbances, enabling timely interventions like vestibular rehabilitation and evaluating changes produced due to surgical complications or changes in the patient's prior conditions. Challenges in vestibular evaluation include individual variability in patient responses, the proximity of the cochlea to the vestibular system, and the need to tailor testing protocols to individual needs. Further research is essential to refine testing protocols, minimize vestibular disturbances, and improve outcomes for cochlear implant candidates. A multidisciplinary approach involving otolaryngologists, audiologists, and physical therapists is integral to comprehensive patient care in this context. In conclusion, vestibular evaluation in patients undergoing cochlear implantation is critical for optimizing surgical planning, managing postoperative issues, and enhancing the overall quality of life for individuals embarking on the journey of restored hearing.
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Affiliation(s)
- Andrea Moreno
- Otology, Hospital Militar Nueva Granada, Bogotá, COL
| | - Melissa Castillo-Bustamante
- Otoneurology, Centro de Vértigo y Mareo, Mexico City, MEX
- School of Medicine, Universidad Pontificia Bolivariana, Medellín, COL
| | - Jose A Prieto
- Otology, Hospital Militar Nueva Granada, Bogotá, COL
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Li Z, Miao L, Zhang T, Li X. Objective Neurological Testing Methods Used to Follow Up Vestibular Neuritis Depending on Different Factors. Int J Gen Med 2023; 16:4991-5002. [PMID: 37933252 PMCID: PMC10625780 DOI: 10.2147/ijgm.s436206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/20/2023] [Indexed: 11/08/2023] Open
Abstract
Purpose We analyze the impact of different factors on clinical performance and prognosis in vestibular neuritis (VN) and explore indicators that could accurately reflect changes in patients' symptoms at different stages. Methods We observed patients with VN during the acute and recovery phases. Clinical symptoms, vertigo-related scales, neurological examination, vestibular function tests (caloric test, video head impulse test (vHIT), vestibular evoked myogenic potential (VEMP)), and the history of disease (underlying diseases, glucocorticoid therapy) were recorded at onset and at 4 and 12 weeks after onset in VN patients. Multiple linear regression analysis was used to identify vestibular function tests that had a linear regression relationship with the subjective quantitative results. Results At 4 weeks after onset, the group without underlying disease had better improvement in EEV, gain, and UW than the group with underlying disease (P < 0.05). There was a significant difference in the change in DHI, EEV, gain of the affected horizontal semicircular canal in the vHIT and unilateral weakness (UW) between the glucocorticoid treatment group and the no glucocorticoid treatment group (P < 0.05), and glucocorticoid treatment group was better. The change value in the gain of horizontal canals in the vHIT was mainly positively and linearly correlated with the EEV scores (P<0.001). Possible dynamic correlation between vHIT results and vestibular symptoms. Conclusion The absence of underlying disease and the receipt of glucocorticoid therapy significantly contributed to the improvement of objective vestibular function tests in the short term, while the improvement of subjective vertigo may correlate with the different objective measures and questionnaire. We believe that the improvement of the affected horizontal semicircular canal gain value in the vHIT can be used as a reference indicator of the degree of improvement of vestibular symptoms with superior vestibular neuritis.
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Affiliation(s)
- Zidong Li
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, People’s Republic of China
| | - Lu Miao
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, People’s Republic of China
| | - Tianyi Zhang
- School of Basic Medical Sciences, Shandong University, Jinan, 250000, People’s Republic of China
| | - Xinyi Li
- Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, People’s Republic of China
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Zhang X, Xu B, Li Y, Wu Y, Yang H, Wu Z. Clinical and VEMPS Characteristics of Benign Recurrent Vertigo With Cochlear Symptoms and Migraine. EAR, NOSE & THROAT JOURNAL 2023:1455613231189055. [PMID: 37649351 DOI: 10.1177/01455613231189055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
Objectives: To explore the clinical manifestations and vestibular-evoked myogenic potential (VEMP) characteristics in patients diagnosed with benign recurrent vertigo (BRV) accompanied by cochlear symptoms or migraine history. Methods: A total of 34 patients were diagnosed with BRV (57 ears) and 30 healthy volunteers (60 ears) were recruited. They were divided into 4 groups: Group A consisted of 17 patients diagnosed as BRV with cochlear symptoms (21 ears), Group B consisted of 11 patients diagnosed as BRV with migraine history (22 ears), and Group C consisted of 7 patients with BRV without cochlear symptoms and migraine history (14 ears). Group D, as a Normal control (NC) group, consisted of 30 healthy volunteers without a history of migraine and cochlear symptoms. Detailed consultations and VEMP testing were performed separately. The VEMPs elicitation rate, amplitude ratio at different frequencies and amplitude statistics were compared and analyzed among the 4 groups. Results: The amplitudes of cervical vestibular evoked myogenic potential (cVEMP) have significant differences between Groups D and A, and Group C, under 500 Hz (PAD = .017, PBD = .052, PCD = .044), but the amplitudes of cVEMP have significant differences between Groups D and A, and Group B under 1000 Hz, respectively (PAD = .008, PBD = .020, PCD = .119). The amplitudes of ocular vestibular evoked myogenic potential (oVEMP) have significant differences between Groups D and A, and Group B, under 500 Hz, respectively (PAD = .029, PBD = .005, PCD = .198). oVEMP amplitudes significantly differ between Groups D and A under 1000 Hz (PAD = .049, PBD = .079, PCD = .103). The statistical difference was absent in elicit rates of cVEMP and oVEMP between the NC and experimental groups (cVEMP: PAD = .525, PBD = .917, PCD = .374; oVEMP: PAD = .678, PBD = .523, PCD = .427). Moreover, there is no significant difference between the NC group and experimental groups among VEMPs and VEMP frequency amplitude ratio (P > .05). Conclusion: VEMPs could be a diagnostic indicator for BRV patients with cochlear symptoms. The pathogenesis of BRV may be related to damage to the otolithic apparatus.
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Affiliation(s)
- Xue Zhang
- Department of Otolaryngology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Bo Xu
- Department of Obstetrics and Gynecology, The Fourth People's Hospital of Nanchong, Nanchong, Sichuan, China
| | - Yuanquan Li
- Department of Otolaryngology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yunsheng Wu
- Department of Otolaryngology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Hongbin Yang
- Department of Otolaryngology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Ziming Wu
- Vertigo Center, The First Medical Center of People's Liberation Army General Hospital, Beijing, China
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Seiwerth I. Interaction of Hearing and Balance. Laryngorhinootologie 2023; 102:S35-S49. [PMID: 37130529 PMCID: PMC10184668 DOI: 10.1055/a-1960-4641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
There is increasingly assumed that, in addition to visual, vestibular and somatosensory afferents, hearing also plays a role in the regulation of balance. It seems that, especially in old age, progressive hearing loss is associated with a decrease in postural control. Several studies investigated this relationship in normal-hearing people, in patients with conventional hearing aids and with implantable hearing systems, as well as in patients with vestibular disorders. Despite the inhomogeneous study situation and lack of evidence, hearing seems to interact with the balance regulation system with potentially stabilizing effect. Furthermore, insights into audiovestibular interaction mechanisms could be achieved, which could possibly be integrated into therapeutic concepts of patients with vestibular disorders. However, further prospective controlled studies are necessary to bring this issue to an evidence-based level.
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Affiliation(s)
- Ingmar Seiwerth
- Universitätsklinik und Poliklinik für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie, Martin-Luther-Universität Halle-Wittenberg, Universitätsklinikum Halle (Saale), Halle (Saale), Deutschland
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Govender S, Biswas RK, Welgampola MS, Rosengren SM. Magnitude, variability and symmetry in head acceleration and jerk and their relationship to cervical and ocular vestibular evoked myogenic potentials. J Vestib Res 2023; 33:325-338. [PMID: 37334642 DOI: 10.3233/ves-230008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
BACKGROUND Acceleration and changes in acceleration (jerk) stimulate vestibular otolith afferents. Bone-conducted (BC) vibration applied to the skull accelerates the head and produces short latency reflexes termed vestibular evoked myogenic potentials (VEMPs). OBJECTIVE To determine the magnitude, variability and symmetry in head acceleration/jerk during VEMP recordings and investigate the relationship between head acceleration/jerk and VEMP properties. METHODS 3D head accelerometery (sagittal, interaural and vertical axes) was recorded bilaterally in thirty-two healthy subjects during cervical (cVEMP) and ocular (oVEMP) recordings. BC 500 Hz sinusoidal tones were applied to the midline forehead using a positive polarity stimulus. RESULTS The direction of induced acceleration/jerk was predominately backward, outward and downward on either side of the head during cVEMP and oVEMP recordings.Overall, acceleration/jerk was larger in the sagittal and interaural axes and peaked earlier in the interaural axis bilaterally. Acceleration was more symmetric in the sagittal and interaural axes whereas jerk symmetry did not differ between axes. Regression models did not show a systematic relationship between acceleration/jerk and either VEMP reflex. CONCLUSIONS The pattern of skull acceleration/jerk was relatively consistent between the two sides of the head and across subjects, but there were differences in magnitude, leading to inter-side and inter-subject variability.
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Affiliation(s)
- Sendhil Govender
- Neurology Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia
- Department of Neurological Sciences, Prince of Wales Hospital and Neuroscience Research Australia, Sydney NSW, Australia
| | - Raaj Kishore Biswas
- Charles Perkins Centre, School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- Sydney Local Health District, Clinical Research Centre, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Miriam S Welgampola
- Neurology Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia
- Central Clinical School, University of Sydney, Sydney, NSW, Australia
| | - Sally M Rosengren
- Neurology Department, Royal Prince Alfred Hospital, Sydney, NSW, Australia
- Central Clinical School, University of Sydney, Sydney, NSW, Australia
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Bayat A, Jafarzadeh S, Saki N, Omidvar S, Pourbakht A. Vestibular Hypersensitivity in Patients with Chronic Noise Exposure. Indian J Otolaryngol Head Neck Surg 2022; 74:3957-3964. [PMID: 36742751 PMCID: PMC9895205 DOI: 10.1007/s12070-021-02741-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/27/2021] [Indexed: 02/07/2023] Open
Abstract
It has been demonstrated that high-intensity noise exposure adversely affects the human balance function. The Tullio phenomenon (TP) refers to sound-induced imbalance which is resulted from hypersensitivity of vestibular end organs to normal acoustic stimuli. Although different etiologies have been attributed to TP, evidence on the role of excessive noise exposure in the development of this symptom is limited. The present study aims to assess the vestibular functions in patients manifesting TP symptom who were exposed to long-term excessive noise levels. This was an analytic cross-sectional study conducted on 17 males diagnosed with TP with a history of chronic noise-induced hearing loss (TP group) and 17 healthy individuals. All subjects in both groups underwent complete otological, videonystagmography (VNG), and cervical vestibular myogenic potential (cVEMP) assessments. The most common complaint in TP subjects was vertigo and imbalance. During the VNG assessment, we found abnormal positional nystagmus and caloric irrigation (vestibular hyperfunction) results in 4 (23.53%) and 9 (52.94%) patients, respectively. Seven (41.17%) patients indicated cVEMP thresholds which were abnormally lower than the normal values ( ≤ 70 dB HL). However, when both VNG and cVEMP results were considered together, the abnormal rate reached 70.58% (12 of 17 cases). Our findings showed that both the semicircular canal as well as otolith stuctures could be affected in TP patients with a history of chronic noise exposure.
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Affiliation(s)
- Arash Bayat
- Hearing Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Sadegh Jafarzadeh
- Department of Audiology, School of Paramedical Sciences, Sinus and Surgical Endoscopic Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nader Saki
- Hearing Research Center, Clinical Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Shaghayegh Omidvar
- Department of Audiology, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Akram Pourbakht
- Department of Audiology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
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Prevalence of Endolymphatic Hydrops in Cochlear Implant Candidates with Idiopathic Profound Sensorineural Hearing Loss. Otol Neurotol 2022; 43:e984-e991. [PMID: 36006776 DOI: 10.1097/mao.0000000000003658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To determine the prevalence of endolymphatic hydrops (EH) in cochlear implant (CI) candidates with idiopathic profound sensorineural hearing loss (SNHL) and its influence on the preservation of audiovestibular function after cochlear implantation. STUDY DESIGN Prospective case series. SETTING Tertiary referral center. PATIENTS CI candidates with idiopathic progressive SNHL, but without classic EH-associated symptoms. INTERVENTIONS Delayed intravenous gadolinium-enhanced inner ear fluid-attenuated inversion recovery magnetic resonance imaging as well as pure-tone audiograms, video head impulse tests, and vestibular evoked myogenic potentials before and 4 weeks after cochlear implantation. MAIN OUTCOME MEASURES Prevalence of EH before cochlear implantation, audiovestibular function before and after surgery in hydropic and nonhydropic ears. RESULTS Thirty-two ears in 16 CI candidates were included. Nine ears (28%) with EH were detected. Although preoperative hearing thresholds, utricular function, and semicircular canal function were not different between the two groups, saccular function was reduced in hydropic ears. Ten subjects received a unilateral CI. Of these, 3 (30%) showed EH on the implanted side. There was no difference regarding postoperative hearing loss between the two groups, but the results point toward a higher vulnerability of hydropic ears with respect to loss of otolith function after cochlear implantation. CONCLUSIONS This is the first study showing that EH can be assumed in about one third of CI candidates with idiopathic profound SNHL, but no classic EH-associated symptoms. Preliminary results suggest that EH has no influence on the preservation of cochlear function but could be a risk factor for loss of otolith function after cochlear implantation.
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8
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Reddy TM, Heinze B, Biagio-de Jager L, Maes L. Cervical and ocular vestibular evoked myogenic potential: A comparison of narrowband chirp, broadband chirp, tone burst and click stimulation. Int J Audiol 2022:1-8. [PMID: 35471921 DOI: 10.1080/14992027.2022.2064924] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES To compare the response rate and response parameters of cervical and ocular vestibular evoked myogenic potentials (c&oVEMP) elicited by narrowband (NB) and broadband (BB) CE-Chirp, with the more classical tone burst (TB) and click VEMPs. DESIGN The response rate, latency, amplitude and asymmetry ratio of c&oVEMPs elicited by 95 dB nHL air conducted (AC) 500 Hz NB CE-chirp, BB CE-chirp, 500 Hz TB and click stimuli were recorded bilaterally. STUDY SAMPLE 20 male and 38 female participants (19-39 years). RESULTS For the cVEMP, the highest response rate was found for NB chirp (100%), followed by TB (91%), BB chirp (87%) and finally click (85%). A similar order was seen for oVEMP with percentages of 100%; 57%, 57%, and 43%. The 500 Hz NB CE-Chirp elicited significantly shorter cVEMP P1 and N1 latencies and significantly larger c&oVEMP amplitudes compared to all other stimuli. BB CE-Chirp elicited significantly shorter c&oVEMP P1 and N1 latencies with smaller amplitudes compared to TB. Asymmetry ratios were not statistically significant for all comparisons. CONCLUSION The 500 Hz NB CE-chirp provides the highest response rates, shorter latencies and larger amplitudes, and therefore seem a promising stimulus for reliably measuring c&oVEMPs in clinical practice.
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Affiliation(s)
- Tarryn Marisca Reddy
- Department of Speech-Language Pathology and Audiology, University of Pretoria, Pretoria, South Africa
| | | | - Leigh Biagio-de Jager
- Department of Speech-Language Pathology and Audiology, University of Pretoria, Pretoria, South Africa
| | - Leen Maes
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium.,Department of Ear Nose Throat, Ghent University Hospital, Ghent, Belgium
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Dizziness in Parkinson's disease patients is associated with vestibular function. Sci Rep 2021; 11:18976. [PMID: 34556776 PMCID: PMC8460810 DOI: 10.1038/s41598-021-98540-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 09/07/2021] [Indexed: 11/14/2022] Open
Abstract
Dizziness is common in Parkinson’s disease (PD) patients. It is known that orthostatic hypotension (OH) is the main cause of such dizziness, but even without OH, quite a few PD patients complain of dizziness in the clinic. It can be regarded as non-specific because most of these patients have no neurological abnormalities. We hypothesized that this type of dizziness would be associated with vestibular function, although included patients did not have clinically confirmed vestibulopathy. We studied 84 patients without OH among 121 PD patients. Their clinical features and function were compared between patients with and without dizziness. Hoehn and Yahr stage (H&Y stage), the Unified Parkinson's Disease Rating Scale (UPDRS) part III, the Korean version of the Mini-Mental State Examination (K-MMSE), education years, disease duration, total levodopa equivalent daily dose (LEDD), the presence of dizziness, the dizziness severity, and orthostatic hypotension were tested. Vestibular evoked myogenic potentials (VEMPs) were used to characterize vestibular function. Ocular (oVEMPs) and cervical (cVEMPs) were recorded. oVEMPs in the right side showed significantly reduced potentials (p = 0.016) in PD patients with dizziness, but cVEMPs did not (all ps > 0.2). Bilateral absent oVEMP responses were more common in PD patients with dizziness (p = 0.022), but the frequencies of bilateral absent cVEMP responses were not different between the dizzy and non-dizzy groups (p = 0.898). Dizziness in PD patients without orthostatic hypotension may be associated with vestibular hypofunction. Our results provide evidence that can aid clinicians when making a treatment plan for patients with dizziness. i.e., strategies to enhance reduced vestibular function may be helpful, but this suggestion remains to be evaluated.
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Masuda K, Masuda M, Yamanobe Y, Mizuno K, Matsunaga T, Wasano K. Effects on cervical vestibular-evoked myogenic potentials of four clinically used head and neck measurement positions in healthy subjects. Acta Otolaryngol 2021; 141:729-735. [PMID: 34314287 DOI: 10.1080/00016489.2021.1943520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND The most reliable head and neck position for cervical vestibular-evoked myogenic potentials (cVEMPs) measurements yet to be determined. AIMS/OBJECTIVES To assess how four body positions used during clinical recordings of cVEMPs affect cVEMP parameters. MATERIAL AND METHOD cVEMPs of 10 healthy subjects (26-50 years old) were recorded in four body positions: A. sitting/head rotated; B. supine/head rotated; C. semi-recumbent/head rotated and elevated; D. supine/head elevated. RESULTS Mean background sternocleidomastoid muscle (SCM) electrical activity was significantly higher in positions C and D than in positions A and B. The latencies of p13 and n23 differed significantly among the four positions. Raw p13-n23 complex amplitude was significantly greater in positions C and D than in A and B. These differences were reduced when amplitudes were corrected by SCM activity. For positions A and B, one and two subjects, respectively, had an abnormal raw asymmetry ratio (AR). After correction, all subjects had normal ARs in all positions. CONCLUSIONS AND SIGNIFICANCE Body positions in which the head is elevated produce a quicker and larger cVEMP response compared to positions in which the head is not elevated. The difference in ARs among positions can be ignored as long as the correction is made.
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Affiliation(s)
- Kanako Masuda
- Division of Hearing and Balance Research, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Masatsugu Masuda
- Division of Hearing and Balance Research, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
- Department of Otolaryngology, Kyorin University Hospital, Tokyo, Japan
| | - Yoshiharu Yamanobe
- Division of Hearing and Balance Research, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
- Department of Otolaryngology, Keio University Hospital, Tokyo, Japan
| | - Kohei Mizuno
- Department of Rehabilitation, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Tatsuo Matsunaga
- Division of Hearing and Balance Research, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Koichiro Wasano
- Division of Hearing and Balance Research, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
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Dlugaiczyk J. Rare Disorders of the Vestibular Labyrinth: of Zebras, Chameleons and Wolves in Sheep's Clothing. Laryngorhinootologie 2021; 100:S1-S40. [PMID: 34352900 PMCID: PMC8363216 DOI: 10.1055/a-1349-7475] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The differential diagnosis of vertigo syndromes is a challenging issue, as many - and in particular - rare disorders of the vestibular labyrinth can hide behind the very common symptoms of "vertigo" and "dizziness". The following article presents an overview of those rare disorders of the balance organ that are of special interest for the otorhinolaryngologist dealing with vertigo disorders. For a better orientation, these disorders are categorized as acute (AVS), episodic (EVS) and chronic vestibular syndromes (CVS) according to their clinical presentation. The main focus lies on EVS sorted by their duration and the presence/absence of triggering factors (seconds, no triggers: vestibular paroxysmia, Tumarkin attacks; seconds, sound and pressure induced: "third window" syndromes; seconds to minutes, positional: rare variants and differential diagnoses of benign paroxysmal positional vertigo; hours to days, spontaneous: intralabyrinthine schwannomas, endolymphatic sac tumors, autoimmune disorders of the inner ear). Furthermore, rare causes of AVS (inferior vestibular neuritis, otolith organ specific dysfunction, vascular labyrinthine disorders, acute bilateral vestibulopathy) and CVS (chronic bilateral vestibulopathy) are covered. In each case, special emphasis is laid on the decisive diagnostic test for the identification of the rare disease and "red flags" for potentially dangerous disorders (e. g. labyrinthine infarction/hemorrhage). Thus, this chapter may serve as a clinical companion for the otorhinolaryngologist aiding in the efficient diagnosis and treatment of rare disorders of the vestibular labyrinth.
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Affiliation(s)
- Julia Dlugaiczyk
- Klinik für Ohren-, Nasen-, Hals- und Gesichtschirurgie
& Interdisziplinäres Zentrum für Schwindel und
neurologische Sehstörungen, Universitätsspital Zürich
(USZ), Universität Zürich (UZH), Zürich,
Schweiz
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