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Perez-Heydrich CA, Creary-Miller I, Spann M, Agrawal Y. Remote Delivery of Vestibular Rehabilitation for Vestibular Dysfunction: A Systematic Review. Otol Neurotol 2024; 45:608-618. [PMID: 38865717 DOI: 10.1097/mao.0000000000004218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
BACKGROUND People with vestibular dysfunction encounter many obstacles when seeking vestibular rehabilitation treatment. Remote delivery of vestibular rehabilitation may offer a promising avenue for overcoming these barriers, ensuring uninterrupted and cost-effective care. OBJECTIVE To evaluate clinical trials studying telerehabilitation and virtual reality devices as therapeutic interventions for individuals with vestibular dysfunction. METHODS A PRISMA systematic review of PubMed, EMBASE, Cochrane, Web of Science, and SCOPUS was conducted for randomized controlled trials describing the use of remote care delivery for vestibular rehabilitation. Bias of studies was assessed with the revised Cochrane risk-of-bias tool (RoB2). RESULTS The search identified 1,358 unique articles and 14 articles matched the search criteria. Study samples size ranged from 20 to 337, with mean ages ranging from 29.3 to 77.7 years. Interventions included telephone and online communication, exergaming devices, web-based applications, and head-mounted devices to deliver vestibular rehabilitation. Outcomes included validated questionnaires, objective clinical tests, and physical examinations. CONCLUSIONS The studies reviewed in this article reported greater or equivalent outcomes when incorporating remote care options as supplements or alternatives to standard care for patients with vestibular dysfunction. Further research is required to address limitations in these studies such as heterogeneity of control groups and cost-effectiveness of these interventions.
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Affiliation(s)
- Carlos A Perez-Heydrich
- From the Department of Otolaryngology-Head and Neck Surgery, Division of Otology, Neurotology, and Skull Base Surgery, Johns Hopkins University
| | - Ilahi Creary-Miller
- From the Department of Otolaryngology-Head and Neck Surgery, Division of Otology, Neurotology, and Skull Base Surgery, Johns Hopkins University
| | - Marcus Spann
- Welch Medical Library, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Yuri Agrawal
- From the Department of Otolaryngology-Head and Neck Surgery, Division of Otology, Neurotology, and Skull Base Surgery, Johns Hopkins University
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Kabuk A, Şevgin Ö. Comparison of the effects of mechanical hippotherapy and Cawthorne-Cooksey exercises in patients with multiple sclerosis: Randomized trial. Mult Scler Relat Disord 2024; 87:105697. [PMID: 38833975 DOI: 10.1016/j.msard.2024.105697] [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] [Received: 03/20/2024] [Revised: 05/03/2024] [Accepted: 05/29/2024] [Indexed: 06/06/2024]
Abstract
BACKGROUND Patients diagnosed with multiple sclerosis (MS) commonly encounter heightened postural instability and challenges in aligning their eyes, head, and bodily motions while engaging in specific tasks. This study aims to compare the effects of Cawthorne-Cooksey and mechanical hippotherapy exercises on fatigue, balance, gait, dizziness, and life quality in patients with MS. METHODS The MS patients were randomly divided into Cawthorne-Cooksey (n:25) and mechanical hippotherapy exercise (n:25) groups. In addition to the traditional physical therapy program, Cawthorne-Cooksey and hippotherapy exercises were applied to the groups 3 days a week, for 8 weeks. The trial's clinical number is NCT06005909. The Fatigue Severity Scale (FSS), Fatigue Impact Scale (FIS), Dizziness Handicap Inventory, Tinetti Balance and Gait Assessment Scale, and Ferrans&Powers Quality-of-Life Index were used for pre-and post-treatment assessment. RESULTS Both groups exhibited a significant decrease in FSS, FIS, and Dizziness Handicap Inventory scores, as well as an increase in Tinetti Balance and Gait Assessment Scale and Ferrans&Powers Quality-of-Life Index scores following treatment. In the inter-group comparison, the Tinetti balance and gait assessment and the Ferrans&Powers quality of life index scores were higher in the hippotherapy group compared to the Cooksey group. CONCLUSIONS Although both forms of physical activity have demonstrated effectiveness in reducing fatigue among individuals with MS, hippotherapy shows superior efficacy in enhancing balance, gait, and overall quality of life.
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Affiliation(s)
- Alesta Kabuk
- Üsküdar University, Institute of Health Sciences, Department of Physiotherapy and Rehabilitation, Istanbul, Turkey
| | - Ömer Şevgin
- Üsküdar University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Istanbul, Turkey.
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Nagdee N, de Andrade VM, Banoo M. The dizzying cycle: a qualitative study showing the effects of vestibular disorders and stress on work experience. Int J Audiol 2024; 63:431-438. [PMID: 37079320 DOI: 10.1080/14992027.2023.2199444] [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] [Received: 04/13/2022] [Accepted: 03/28/2023] [Indexed: 04/21/2023]
Abstract
OBJECTIVE Quantitative studies have explored the work abilities of persons with specific vestibular-related symptoms, but there seems to be a dearth of research that has explored the work experience of persons-with- vestibular- disorders, so this qualitative study explored this phenomenon. DESIGN Audio-recorded semi-structured interviews were conducted online. Thematic analysis was used to analyse the transcripts. Together, two researchers coded the transcripts and deductively identified the main themes on the main components of the expanded International Classification of Functioning, Disability, and Health scheme, and thereafter generated the sub-themes inductively. STUDY SAMPLE Fourteen people with various vestibular disorders and occupations in South Africa participated in the study. RESULTS Participants reported having difficulty performing work-related tasks requiring attention to detail and ambulation, and work environmental conditions triggered their vestibular-related symptoms. Some participants received time off from work and support from their supervisors and colleagues, while others did not. Seeking mental services allowed them to overcome their negative feelings, medication suppressed their vestibular-related symptoms, and vestibular rehabilitation allowed them to focus on their work. CONCLUSION Vestibular-related symptoms may hinder persons- with- vestibular- disorders from completing and participating in work-related activities, which may result in them experiencing negative feelings. The nature of some of the work-related tasks that they need to complete and experiencing negative feelings may trigger their vestibular-related symptoms. Together, the work-related activity limitations, participation restrictions, and environmental and personal factors may cause persons- with- vestibular- disorders to experience disability in their workplaces. To prevent this potential disability, persons with vestibular disorders should be supported by and receive workplace accommodations. Furthermore, they should be enrolled into work rehabilitation programmes that include, vestibular rehabilitation, medication regimens, and mental health services.
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Affiliation(s)
- Nabeelah Nagdee
- Department of Speech-Pathology and Audiology, University of the Witwatersrand, Johannesburg, South Africa
| | - Victor Manuel de Andrade
- Department of Speech-Pathology and Audiology, University of the Witwatersrand, Johannesburg, South Africa
| | - Mahdiyyah Banoo
- Department of Speech-Pathology and Audiology, University of the Witwatersrand, Johannesburg, South Africa
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Aljabri A, Halawani A, Ashqar A, Alageely O, Alhazzani A. The Efficacy of Vestibular Rehabilitation Therapy for Mild Traumatic Brain Injury: A Systematic Review and Meta-analysis. J Head Trauma Rehabil 2024; 39:E59-E69. [PMID: 37335202 DOI: 10.1097/htr.0000000000000882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
OBJECTIVE Mild traumatic brain injury (mTBI) or concussion is a common yet undermanaged and underreported condition. This systematic review and meta-analysis aim to determine the efficacy of vestibular rehabilitation therapy (VRT) as a treatment option for mTBI. METHOD This review and meta-analysis was performed following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. It included randomized controlled trials and pre-VRT/post-VRT retrospective chart reviews. Records meeting the inclusion criteria were extracted from the following databases: MEDLINE, EMBASE, and Cochrane Central Register of Controlled Trials (CENTRAL). RESULTS Eight articles met the inclusion criteria, from which 6 randomized controlled trials were included in the meta-analysis. VRT demonstrated significant improvement in decreasing perceived dizziness at the end of the intervention program as shown by Dizziness Handicap Inventory (DHI) scores (standardized mean difference [SMD] = -0.33, 95% confidence interval [CI]: -0.62 to -0.03, P = .03, I2 = 0%). However, no significant reduction in DHI was evident after 2 months of follow-up (SMD = 0.15, 95% CI: -0.23 to 0.52, P = .44, I2 = 0%). Quantitative analysis also depicted significant reduction in both Vestibular/Ocular Motor Screening (SMD = -0.40, 95% CI: -0.60 to -0.20, P < .0001, I2 = 0%) and Post-Concussion Symptom Scale (SMD= -0.39, 95% CI: -0.71 to -0.07, P = .02, I2 = 0%) following the intervention. Finally, there was no significant difference between intervention groups on Balance Error Scoring System scores (SMD = -31, 95% CI: -0.71 to 0.10, P = .14, I2 = 0%) and return to sport/function (95% CI: 0.32-30.80, P = .32, I2 = 82%). CONCLUSIONS Current evidence on the efficacy of VRT for mTBI is limited. This review and analysis provides evidence that supports the role of VRT in improving perceived symptoms following concussion. Although findings from this analysis suggest positive effects of VRT on included outcomes, the low certainty of evidence limits the conclusions drawn from this study. There is still a need for high-quality trials evaluating the benefit of VRT using a standardized approach.PROSPERO registration number: CRD42022342473.
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Affiliation(s)
- Ammar Aljabri
- Author Affiliations: College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia (Drs Aljabri, Ashqar, Alageely, and Halawani); King Abdullah International Medical Research Center, Jeddah, Saudi Arabia (Drs Aljabri, Ashqar, Alageely, and Halawani); and Neurosciences Center, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia (Dr Alhazzani)
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Wuehr M, Eder J, Kellerer S, Amberger T, Jahn K. Mechanisms underlying treatment effects of vestibular noise stimulation on postural instability in patients with bilateral vestibulopathy. J Neurol 2024; 271:1408-1415. [PMID: 37973635 PMCID: PMC10896912 DOI: 10.1007/s00415-023-12085-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Previous studies indicate that imbalance in patients with bilateral vestibulopathy (BVP) may be reduced by treatment with low-intensity noisy galvanic vestibular stimulation (nGVS). OBJECTIVE To elucidate the potential mechanisms underlying this therapeutic effect. In particular, we determined whether nGVS-induced balance improvements in patients are compatible with stochastic resonance (SR)-a mechanism by which weak noise stimulation can paradoxically enhance sensory signal processing. METHODS Effects of nGVS of varying intensities (0-0.7 mA) on body sway were examined in 19 patients with BVP standing with eye closed on a posturographic force plate. We assumed a bell-shaped response curve with maximal sway reductions at intermediate nGVS intensities to be indicative of SR. An established SR curve model was fitted on individual patient outcomes, and three experienced human raters had to judge whether responses to nGVS were consistent with the exhibition of SR. RESULTS nGVS-induced reductions of body sway compatible with SR were found in 12 patients (63%) with optimal improvements of 31 ± 21%. In 10 patients (53%), nGVS-induced sway reductions exceeded the minimally important clinical difference (optimal improvement: 35 ± 21%), indicative of strong SR. This beneficial effect was more likely in patients with severe vestibular loss (i.e. lower video head impulse test gain; R = 0.663; p = 0.002) and considerable postural imbalance (baseline body sway; R = 0.616; p = 0.005). CONCLUSIONS More than half of the assessed patients showed robust improvements in postural balance compatible with SR when treated with nGVS. In particular, patients with a higher burden of disease may benefit from the non-invasive and well-tolerated treatment with nGVS.
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Affiliation(s)
- Max Wuehr
- German Center for Vertigo and Balance Disorders, Ludwig-Maximilians-University, Marchioninistrasse 15, 81377, Munich, Germany.
| | - Josefine Eder
- German Center for Vertigo and Balance Disorders, Ludwig-Maximilians-University, Marchioninistrasse 15, 81377, Munich, Germany
| | - Silvy Kellerer
- German Center for Vertigo and Balance Disorders, Ludwig-Maximilians-University, Marchioninistrasse 15, 81377, Munich, Germany
| | - Tamara Amberger
- German Center for Vertigo and Balance Disorders, Ludwig-Maximilians-University, Marchioninistrasse 15, 81377, Munich, Germany
| | - Klaus Jahn
- German Center for Vertigo and Balance Disorders, Ludwig-Maximilians-University, Marchioninistrasse 15, 81377, Munich, Germany
- Schön Klinik Bad Aibling, Bad Aibling, Germany
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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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Zhang S, Liu D, Tian E, Wang J, Guo Z, Kong W. Central vestibular dysfunction: don't forget vestibular rehabilitation. Expert Rev Neurother 2022; 22:669-680. [PMID: 35912850 DOI: 10.1080/14737175.2022.2106129] [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: 11/04/2022]
Abstract
INTRODUCTION Vestibular rehabilitation (VR) is now a subject of active studies and has been shown to be effective for multiple vestibular disorders, peripheral or central. VR is a physical therapy that helps train the central nervous system to compensate for vestibular dysfunction. There is moderate to strong evidence that VR is safe and effective for the management of peripheral vestibular dysfunction. Nonetheless, the studies on how VR works on central vestibular dysfunction remains scanty. AREAS COVERED This article addressed the rehabilitation strategies and possible mechanisms, including how central vestibular function might improve upon rehabilitation. In addition, it provides some examples concerning the effect of VR on central vestibular dysfunction. EXPERT OPINION VR works on the vestibular system through repetition of specific physical exercises that activate central neuroplastic mechanisms to achieve adaptive compensation of the impaired functions. VR has become a mainstay in the management of patients with dizziness and balance dysfunction. Individualized VR programs are a safe and effective treatment option for a large percentage of patients with central vestibular disease reporting imbalance and dizziness. Exploration of various treatment strategies and possible mechanisms will help develop the best and personalized VR treatment for patients with central vestibular dysfunction.
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Affiliation(s)
- Sulin Zhang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China.,Institute of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Dan Liu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - E Tian
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Jun Wang
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Zhaoqi Guo
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Weijia Kong
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China.,Institute of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China.,Key Laboratory of Neurological Disorders of Education Ministry, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
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Marouane E, El Mahmoudi N, Rastoldo G, Péricat D, Watabe I, Lapôtre A, Tonetto A, Xavier F, Dumas O, Chabbert C, Artzner V, Tighilet B. Sensorimotor Rehabilitation Promotes Vestibular Compensation in a Rodent Model of Acute Peripheral Vestibulopathy by Promoting Microgliogenesis in the Deafferented Vestibular Nuclei. Cells 2021; 10:3377. [PMID: 34943885 PMCID: PMC8699190 DOI: 10.3390/cells10123377] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 12/16/2022] Open
Abstract
Acute peripheral vestibulopathy leads to a cascade of symptoms involving balance and gait disorders that are particularly disabling for vestibular patients. Vestibular rehabilitation protocols have proven to be effective in improving vestibular compensation in clinical practice. Yet, the underlying neurobiological correlates remain unknown. The aim of this study was to highlight the behavioural and cellular consequences of a vestibular rehabilitation protocol adapted to a rat model of unilateral vestibular neurectomy. We developed a progressive sensory-motor rehabilitation task, and the behavioural consequences were quantified using a weight-distribution device. This analysis method provides a precise and ecological analysis of posturolocomotor vestibular deficits. At the cellular level, we focused on the analysis of plasticity mechanisms expressed in the vestibular nuclei. The results obtained show that vestibular rehabilitation induces a faster recovery of posturolocomotor deficits during vestibular compensation associated with a decrease in neurogenesis and an increase in microgliogenesis in the deafferented medial vestibular nucleus. This study reveals for the first time a part of the underlying adaptative neuroplasticity mechanisms of vestibular rehabilitation. These original data incite further investigation of the impact of rehabilitation on animal models of vestibulopathy. This new line of research should improve the management of vestibular patients.
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Affiliation(s)
- Emna Marouane
- Aix-Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives, LNC UMR 7291, Centre Saint-Charles Case C, 3 Place Victor Hugo, CEDEX 03, 13331 Marseille, France; (E.M.); (N.E.M.); (G.R.); (I.W.); (A.L.); (F.X.); (C.C.)
- BIOSEB ALLCAT Instruments, Couperigne, 13127 Vitrolles, France;
| | - Nada El Mahmoudi
- Aix-Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives, LNC UMR 7291, Centre Saint-Charles Case C, 3 Place Victor Hugo, CEDEX 03, 13331 Marseille, France; (E.M.); (N.E.M.); (G.R.); (I.W.); (A.L.); (F.X.); (C.C.)
| | - Guillaume Rastoldo
- Aix-Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives, LNC UMR 7291, Centre Saint-Charles Case C, 3 Place Victor Hugo, CEDEX 03, 13331 Marseille, France; (E.M.); (N.E.M.); (G.R.); (I.W.); (A.L.); (F.X.); (C.C.)
| | - David Péricat
- Institute of Pharmacology and Structural Biology (IPBS), University of Toulouse, CNRS, 31400 Toulouse, France;
| | - Isabelle Watabe
- Aix-Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives, LNC UMR 7291, Centre Saint-Charles Case C, 3 Place Victor Hugo, CEDEX 03, 13331 Marseille, France; (E.M.); (N.E.M.); (G.R.); (I.W.); (A.L.); (F.X.); (C.C.)
| | - Agnès Lapôtre
- Aix-Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives, LNC UMR 7291, Centre Saint-Charles Case C, 3 Place Victor Hugo, CEDEX 03, 13331 Marseille, France; (E.M.); (N.E.M.); (G.R.); (I.W.); (A.L.); (F.X.); (C.C.)
| | - Alain Tonetto
- Fédération de Recherche Sciences Chimiques Marseille FR 1739, Pôle 18 PRATIM, CEDEX 03, 13331 Marseille, France;
| | - Frédéric Xavier
- Aix-Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives, LNC UMR 7291, Centre Saint-Charles Case C, 3 Place Victor Hugo, CEDEX 03, 13331 Marseille, France; (E.M.); (N.E.M.); (G.R.); (I.W.); (A.L.); (F.X.); (C.C.)
- GDR Physiopathologie Vestibulaire—Unité GDR2074, CNRS, 13003 Marseille, France;
| | - Olivier Dumas
- GDR Physiopathologie Vestibulaire—Unité GDR2074, CNRS, 13003 Marseille, France;
| | - Christian Chabbert
- Aix-Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives, LNC UMR 7291, Centre Saint-Charles Case C, 3 Place Victor Hugo, CEDEX 03, 13331 Marseille, France; (E.M.); (N.E.M.); (G.R.); (I.W.); (A.L.); (F.X.); (C.C.)
- GDR Physiopathologie Vestibulaire—Unité GDR2074, CNRS, 13003 Marseille, France;
| | - Vincent Artzner
- BIOSEB ALLCAT Instruments, Couperigne, 13127 Vitrolles, France;
| | - Brahim Tighilet
- Aix-Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives, LNC UMR 7291, Centre Saint-Charles Case C, 3 Place Victor Hugo, CEDEX 03, 13331 Marseille, France; (E.M.); (N.E.M.); (G.R.); (I.W.); (A.L.); (F.X.); (C.C.)
- GDR Physiopathologie Vestibulaire—Unité GDR2074, CNRS, 13003 Marseille, France;
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García-Muñoz C, Casuso-Holgado MJ, Hernández-Rodríguez JC, Pinero-Pinto E, Palomo-Carrión R, Cortés-Vega MD. Feasibility and safety of an immersive virtual reality-based vestibular rehabilitation programme in people with multiple sclerosis experiencing vestibular impairment: a protocol for a pilot randomised controlled trial. BMJ Open 2021; 11:e051478. [PMID: 34810187 PMCID: PMC8609940 DOI: 10.1136/bmjopen-2021-051478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 10/22/2021] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Vestibular system damage in patients with multiple sclerosis (MS) may have a central and/or peripheral origin. Subsequent vestibular impairments may contribute to dizziness, balance disorders and fatigue in this population. Vestibular rehabilitation targeting vestibular impairments may improve these symptoms. Furthermore, as a successful tool in neurological rehabilitation, immersive virtual reality (VRi) could also be implemented within a vestibular rehabilitation intervention. METHODS AND ANALYSIS This protocol describes a parallel-arm, pilot randomised controlled trial, with blinded assessments, in 30 patients with MS with vestibular impairment (Dizziness Handicap Inventory ≥16). The experimental group will receive a VRi vestibular rehabilitation intervention based on the conventional Cawthorne-Cooksey protocol; the control group will perform the conventional protocol. The duration of the intervention in both groups will be 7 weeks (20 sessions, 3 sessions/week). The primary outcomes are the feasibility and safety of the vestibular VRi intervention in patients with MS. Secondary outcome measures are dizziness symptoms, balance performance, fatigue and quality of life. Quantitative assessment will be carried out at baseline (T0), immediately after intervention (T1), and after a follow-up period of 3 and 6 months (T2 and T3). Additionally, in order to further examine the feasibility of the intervention, a qualitative assessment will be performed at T1. ETHICS AND DISSEMINATION The study was approved by the Andalusian Review Board and Ethics Committee, Virgen Macarena-Virgen del Rocio Hospitals (ID 2148-N-19, 25 March 2020). Informed consent will be collected from participants who wish to participate in the research. The results of this research will be disseminated by publication in peer-reviewed scientific journals. TRIAL REGISTRATION NUMBER NCT04497025.
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Affiliation(s)
| | | | | | | | - Rocío Palomo-Carrión
- Department of Nursery, Physiotherapy and Occupational Therapy, University of Castilla-La Mancha, Toledo, Spain
- GIFTO, Physiotherapy Research Group, Toledo, Spain
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Multisensory Exercise Improves Balance in People with Balance Disorders: A Systematic Review. Curr Med Sci 2021; 41:635-648. [PMID: 34403086 DOI: 10.1007/s11596-021-2417-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To examine the effect of multisensory exercise on balance disorders. METHODS PubMed, Scopus and Web of Science were searched to identify eligible studies published before January 1, 2020. Eligible studies included randomized control trials (RCTs), non-randomized studies, case-control studies, and cohort studies. The methodological quality of the included studies was evaluated using JBI Critical Appraisal Checklists for RCTs and for Quasi-Experimental Studies by two researchers independently. A narrative synthesis of intervention characteristics and health-related outcomes was performed. RESULTS A total of 11 non-randomized studies and 9 RCTs were eligible, including 667 participants. The results supported our assumption that multisensory exercise improved balance in people with balance disorders. All of the 20 studies were believed to be of high or moderate quality. CONCLUSION Our study confirmed that multisensory exercise was effective in improving balance in people with balance disorders. Multisensory exercises could lower the risk of fall and enhance confidence level to improve the quality of life. Further research is needed to investigate the optimal strategy of multisensory exercises and explore the underlying neural and molecular mechanisms of balance improvement brought by multisensory exercises.
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Ding CR, Gao YQ, Zhou YJ, Gu J, Wang J. Advantages of Short-term Personalized Vestibular Rehabilitation at Home Guided by Professional Therapist for Treatment of Decompensated Vestibular Vertigo. Curr Med Sci 2021; 41:687-694. [PMID: 34403093 DOI: 10.1007/s11596-021-2420-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 07/18/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Patients suffered a lot from decompensated vestibular vertigo. Pharmacotherapy and vestibular rehabilitation training have been proven to be effective in prompting vestibular compensation. Routine rehabilitation training is faced with the challenges of patients' compliance, completion, the average recuperation time and so on. This study is aimed to investigate advantages of short-term personalized vestibular rehabihitation at home guided by professional therapist. METHODS A short-term personalized vestibular rehabilitation program (ST-PVR) was designed for patients with decompensated vestibular vertigo in this study. RESULTS Patients experiencing the ST-PVR program showed significant improvement of Self-Rating Anxiety Scale (SAS), Dizziness Handicap Inventory (DHI), Activities-Specific Balance Confidence Scale (ABC) scores by the second follow-up (at 2nd week after treatment, P<0.05). However-improvement in the medication group occurred slightly later, DHI for 1 month and SAS for 2 months after treatment (P<0.05). Also, the improvement in the onset time of unilateral weakness (UW) at 2nd week after treatment in the personalized vestibular rehabilitation (PVR) group was faster than that in the medication group. CONCLUSION In general, the short-term PVR program showed great advantages by prompting vestibular compensation quickly and putting forward future direction for clinical treatment on decompensated vestibular vertigo.
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Affiliation(s)
- Chen-Ru Ding
- Department of Otology and Skull Base Surgery, Eye Ear Nose & Throat Hospital, Fudan University, Shanghai, 200031, China.,Shanghai Auditory Medical Center, Shanghai, 200031, China.,Key laboratory of Hearing Science, Ministry of Health, Shanghai, 200031, China
| | - Ying-Qi Gao
- Department of Otology and Skull Base Surgery, Eye Ear Nose & Throat Hospital, Fudan University, Shanghai, 200031, China.,Shanghai Auditory Medical Center, Shanghai, 200031, China.,Key laboratory of Hearing Science, Ministry of Health, Shanghai, 200031, China
| | - Yu-Juan Zhou
- Department of Otology and Skull Base Surgery, Eye Ear Nose & Throat Hospital, Fudan University, Shanghai, 200031, China.,Shanghai Auditory Medical Center, Shanghai, 200031, China.,Key laboratory of Hearing Science, Ministry of Health, Shanghai, 200031, China
| | - Jun Gu
- Department of Otology and Skull Base Surgery, Eye Ear Nose & Throat Hospital, Fudan University, Shanghai, 200031, China.,Shanghai Auditory Medical Center, Shanghai, 200031, China.,Key laboratory of Hearing Science, Ministry of Health, Shanghai, 200031, China
| | - Jing Wang
- Department of Otology and Skull Base Surgery, Eye Ear Nose & Throat Hospital, Fudan University, Shanghai, 200031, China. .,Shanghai Auditory Medical Center, Shanghai, 200031, China. .,Key laboratory of Hearing Science, Ministry of Health, Shanghai, 200031, China.
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12
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Choi SY, Choi JH, Oh EH, Oh SJ, Choi KD. Effect of vestibular exercise and optokinetic stimulation using virtual reality in persistent postural-perceptual dizziness. Sci Rep 2021; 11:14437. [PMID: 34262120 PMCID: PMC8280184 DOI: 10.1038/s41598-021-93940-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/01/2021] [Indexed: 11/08/2022] Open
Abstract
To determine the effect of customized vestibular exercise (VE) and optokinetic stimulation (OS) using a virtual reality system in patients with persistent postural-perceptual dizziness (PPPD). Patients diagnosed with PPPD were randomly assigned to the VE group or VE with OS group. All participants received VE for 20 min using a virtual reality system with a head mount display once a week for 4 weeks. The patients in the VE with OS group additionally received OS for 9 min. We analysed the questionnaires, timed up-to-go (TUG) test, and posturography scores at baseline and after 4 weeks. A total of 28 patients (median age = 74.5, IQR 66-78, men = 12) completed the intervention. From baseline to 4 weeks, the dizziness handicap inventory, activities of daily living (ADL), visual vertigo analogue scale, and TUG improved in the VE group, but only ADL and TUG improved in the VE with OS group. Patients with severe visual vertigo improved more on their symptoms than patients with lesser visual vertigo (Pearson's p = 0.716, p < 0.001). Our VE program can improve dizziness, quality of life, and gait function in PPPD; however, additional optokinetic stimuli should be applied for individuals with visual vertigo symptoms.
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Affiliation(s)
- Seo-Young Choi
- Department of Neurology, College of Medicine, Pusan National University Hospital, Pusan National University School of Medicine and Biomedical Research Institute, 179, Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Jae-Hwan Choi
- Department of Neurology, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Busan, Korea
| | - Eun Hye Oh
- Department of Neurology, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Busan, Korea
| | - Se-Joon Oh
- Department of Otorhinolaryngology and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Kwang-Dong Choi
- Department of Neurology, College of Medicine, Pusan National University Hospital, Pusan National University School of Medicine and Biomedical Research Institute, 179, Gudeok-ro, Seo-gu, Busan, 602-739, Korea.
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13
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Facchini J, Rastoldo G, Xerri C, Péricat D, El Ahmadi A, Tighilet B, Zennou-Azogui Y. Unilateral vestibular neurectomy induces a remodeling of somatosensory cortical maps. Prog Neurobiol 2021; 205:102119. [PMID: 34246703 DOI: 10.1016/j.pneurobio.2021.102119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 06/23/2021] [Accepted: 07/06/2021] [Indexed: 10/20/2022]
Abstract
Unilateral Vestibular Neurectomy (UVN) induces a postural syndrome whose compensation over time is underpinned by multimodal sensory substitution processes. However, at a chronic stage of compensation, UVN rats exhibit an enduring postural asymmetry expressed by an increase in the body weight on the ipsilesional paws. Given the anatomo-functional links between the vestibular nuclei and the primary somatosensory cortex (S1), we explored the interplay of vestibular and somatosensory cortical inputs following acute and chronic UVN. We determined whether the enduring imbalance in tactilo-plantar inputs impacts response properties of S1 cortical neurons and organizational features of somatotopic maps. We performed electrophysiological mapping of the hindpaw cutaneous representations in S1, immediately and one month after UVN. In parallel, we assessed the posturo-locomotor imbalance during the compensation process. UVN immediately induces an expansion of the cortical neuron cutaneous receptive fields (RFs) leading to a partial dedifferentiation of somatotopic maps. This effect was demonstrated for the ventral skin surface representations and was greater on the contralesional hindpaw for which the neuronal threshold to skin pressure strongly decreased. The RF enlargement was amplified for the representation of the ipsilesional hindpaw in relation to persistent postural asymmetries, but was transitory for the contralesional one. Our study shows, for the first time, that vestibular inputs exert a modulatory influence on S1 neuron's cutaneous responses. The lesion-induced cortical malleability highlights the influence of vestibular inputs on tactile processing related to postural control.
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Affiliation(s)
- Justine Facchini
- Aix Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives (LNC), UMR 7291, Marseille, France
| | - Guillaume Rastoldo
- Aix Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives (LNC), UMR 7291, Marseille, France
| | - Christian Xerri
- Aix Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives (LNC), UMR 7291, Marseille, France
| | - David Péricat
- Aix Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives (LNC), UMR 7291, Marseille, France
| | - Abdessadek El Ahmadi
- Aix Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives (LNC), UMR 7291, Marseille, France
| | - Brahim Tighilet
- Aix Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives (LNC), UMR 7291, Marseille, France.
| | - Yoh'i Zennou-Azogui
- Aix Marseille Université-CNRS, Laboratoire de Neurosciences Cognitives (LNC), UMR 7291, Marseille, France.
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14
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Totilienė M, Uloza V, Lesauskaitė V, Damulevičienė G, Kregždytė R, Kaski D, Ulozienė I. Impaired Subjective Visual Vertical and Increased Visual Dependence in Older Adults With Falls. Front Aging Neurosci 2021; 13:667608. [PMID: 34177553 PMCID: PMC8232053 DOI: 10.3389/fnagi.2021.667608] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/11/2021] [Indexed: 12/15/2022] Open
Abstract
Aging affects the vestibular system and may disturb the perception of verticality and lead to increased visual dependence (VD). Studies have identified that abnormal upright perception influences the risk of falling. The aim of our study was to evaluate subjective visual vertical (SVV) and VD using a mobile virtual reality-based system for SVV assessment (VIRVEST) in older adults with falls and evaluate its relationship with clinical balance assessment tools, dizziness, mental state, and depression level. This study included 37 adults >65 years who experienced falls and 40 non-faller age-matched controls. Three tests were performed using the VIRVEST system: a static SVV, dynamic SVV with clockwise and counter-clockwise background stimulus motion. VD was calculated as the mean of absolute values of the rod tilt from each trial of dynamic SVV minus the mean static SVV rod tilt. Older adults who experienced falls manifested significantly larger biases in static SVV (p = 0.012), dynamic SVV (p < 0.001), and VD (p = 0.014) than controls. The increase in static SVV (odds ratio = 1.365, p = 0.023), dynamic SVV (odds ratio = 1.623, p < 0.001) and VD (odds ratio = 1.460, p = 0.010) tilt by one degree significantly related to falls risk in the faller group. Fallers who had a high risk of falling according to the Tinetti test exhibited significantly higher tilts of dynamic SVV than those who had a low or medium risk (p = 0.037). In the faller group, the increase of the dynamic SVV tilt by one degree was significantly related to falls risk according to the Tinetti test (odds ratio = 1.356, p = 0.049). SVV errors, particularly with the dynamic SVV test (i.e., greater VD) were associated with an increased risk of falling in the faller group. The VIRVEST system may be applicable in clinical settings for SVV testing and predicting falls in older adults.
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Affiliation(s)
- Milda Totilienė
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Virgilijus Uloza
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vita Lesauskaitė
- Department of Geriatrics, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Gytė Damulevičienė
- Department of Geriatrics, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rima Kregždytė
- Department of Preventive Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Diego Kaski
- Department of Clinical and Movement Neurosciences, University College London, London, United Kingdom
| | - Ingrida Ulozienė
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, Kaunas, Lithuania
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15
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Worrell SL, Kirschner ML, Shatz RS, Sengupta S, Erickson MG. Interdisciplinary Approaches to Survivorship with a Focus on the Low-grade and Benign Brain Tumor Populations. Curr Oncol Rep 2021; 23:19. [PMID: 33471214 PMCID: PMC7817573 DOI: 10.1007/s11912-020-01004-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW "Brain tumor is a bump in the road." Sheryl Crow a famous singer was quoted talking about her meningioma, a benign brain tumor that caused her to forget her lyrics. In this review, we focus on low-grade gliomas in adults and benign brain tumors, such as meningiomas, vestibular schwannomas, and pituitary tumors, since these individuals survive a long time and morbidity is a major issue. RECENT FINDINGS As per the NCI dictionary definition, cancer survivorship focuses on the health and well-being of a person with cancer from the time of diagnosis until the end of life. This includes the physical, mental, emotional, social, and financial effects of cancer that begin at diagnosis and continue through treatment and beyond. The survivorship experience also includes issues related to follow-up care (including regular health and wellness checkups), late effects of treatment, cancer recurrence, second cancers, and quality of life. Family members, friends, and caregivers are also considered part of the survivorship experience (NCI Dictionary: https://www.cancer.gov/publications/dictionaries/cancer-terms ).
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Affiliation(s)
- Stacey L Worrell
- Department of Neurology & Rehabilitation Medicine, University of Cincinnati, 234 Goodman St, Cincinnati, OH, 45219, USA
| | | | - Rhonna S Shatz
- Department of Neurology & Rehabilitation Medicine, University of Cincinnati, 234 Goodman St, Cincinnati, OH, 45219, USA
| | - Soma Sengupta
- Department of Neurology & Rehabilitation Medicine, University of Cincinnati, 234 Goodman St, Cincinnati, OH, 45219, USA.
| | - Melissa G Erickson
- Department of Family Medicine, University of Cincinnati, Cincinnati, OH, USA
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16
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Regauer V, Seckler E, Müller M, Bauer P. Physical therapy interventions for older people with vertigo, dizziness and balance disorders addressing mobility and participation: a systematic review. BMC Geriatr 2020; 20:494. [PMID: 33228601 PMCID: PMC7684969 DOI: 10.1186/s12877-020-01899-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 11/12/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Vertigo, dizziness and balance disorders (VDB) are among the most relevant contributors to the burden of disability among older adults living in the community and associated with immobility, limitations of activities of daily living and decreased participation. The aim of this study was to identify the quality of evidence of physical therapy interventions that address mobility and participation in older patients with VDB and to characterize the used primary and secondary outcomes. METHODS A systematic search via MEDLINE (PubMed), Cochrane Library, CINAHL, PEDro, forward citation tracing and hand search was conducted initially in 11/2017 and updated in 7/2019. We included individual and cluster-randomized controlled trials and trials with quasi-experimental design, published between 2007 and 2017/2019 and including individuals ≥65 years with VDB. Physical therapy and related interventions were reviewed with no restrictions to outcome measurement. Screening of titles, abstracts and full texts, data extraction and critical appraisal was conducted by two independent researchers. The included studies were heterogeneous in terms of interventions and outcome measures. Therefore, a narrative synthesis was conducted. RESULTS A total of 20 randomized and 2 non-randomized controlled trials with 1876 patients met the inclusion criteria. The included studies were heterogeneous in terms of complexity of interventions, outcome measures and methodological quality. Vestibular rehabilitation (VR) was examined in twelve studies, computer-assisted VR (CAVR) in five, Tai Chi as VR (TCVR) in three, canal repositioning manoeuvres (CRM) in one and manual therapy (MT) in one study. Mixed effects were found regarding body structure/function and activities/participation. Quality of life and/or falls were assessed, with no differences between groups. VR is with moderate quality of evidence superior to usual care to improve balance, mobility and symptoms. CONCLUSION To treat older individuals with VDB, VR in any variation and in addition to CRMs seems to be effective. High-quality randomized trials need to be conducted to inform clinical decision making. TRIAL REGISTRATION PROSPERO 2017 CRD42017080291 .
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Affiliation(s)
- Verena Regauer
- Centre for Research, Development and Technology Transfer, Rosenheim Technical University of Applied Sciences, Hochschulstraße 1, 83024, Rosenheim, Germany.
- Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig Maximilian University of Munich, Marchioninistraße 17, 81377, Munich, Germany.
| | - Eva Seckler
- Centre for Research, Development and Technology Transfer, Rosenheim Technical University of Applied Sciences, Hochschulstraße 1, 83024, Rosenheim, Germany
- Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig Maximilian University of Munich, Marchioninistraße 17, 81377, Munich, Germany
| | - Martin Müller
- Faculty for Applied Health and Social Sciences and Centre for Research, Research, Development and Technology Transfer, Rosenheim Technical University of Applied Sciences, Hochschulstraße 1, 83024, Rosenheim, Germany
| | - Petra Bauer
- Faculty for Applied Health and Social Sciences and Centre for Research, Research, Development and Technology Transfer, Rosenheim Technical University of Applied Sciences, Hochschulstraße 1, 83024, Rosenheim, Germany
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17
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Kotov SV, Isakova EV, Zaitseva EV. [Poststroke cognitive impairment and the possibility of its nonpharmacological treatment with vestibular stimulation based on biological feedback to supporting reaction]. Zh Nevrol Psikhiatr Im S S Korsakova 2020; 120:16-22. [PMID: 32307425 DOI: 10.17116/jnevro202012003216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cognitive impairment is common in poststroke patients. Today in rehabilitation programs the specialists use the vestibular stimulation including biological feedback to supporting reaction for treatment poststroke cognitive impairment. These studies show the relationship of vestibular function with memory, attention, spatial orientation, navigation, mental representation of three-dimensional space and other cognitive functions. It makes possible to build rehabilitation programs for patients with stroke.
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Affiliation(s)
- S V Kotov
- Vladimirsky Moscow Regional Scientific Research Clinical Institute, Moscow, Russia
| | - E V Isakova
- Vladimirsky Moscow Regional Scientific Research Clinical Institute, Moscow, Russia
| | - E V Zaitseva
- Vladimirsky Moscow Regional Scientific Research Clinical Institute, Moscow, Russia
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18
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Effectiveness of Vestibular Training for Balance and Dizziness Rehabilitation in People with Multiple Sclerosis: A Systematic Review and Meta-Analysis. J Clin Med 2020; 9:jcm9020590. [PMID: 32098162 PMCID: PMC7074243 DOI: 10.3390/jcm9020590] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/08/2020] [Accepted: 02/08/2020] [Indexed: 12/30/2022] Open
Abstract
Postural instability and dizziness are commonly observed in people with multiple sclerosis (PwMS). The aim of this systematic review was to evaluate the evidence for the use of vestibular rehabilitation, in comparison with other exercise interventions or no intervention, to treat balance impairments and dizziness in PwMS. An electronic search was conducted by two independent reviewers in the following databases: MEDLINE (Pubmed), Scopus, the Physiotherapy Evidence Database (PEDro), Web of Science (WOS), Lilacs, CINHAL and the Cochrane Database of Systematic Reviews (CDSR). A quality assessment was performed using the PEDro scale and the Cochrane Risk of Bias Tool. When possible, the data were pooled in a meta-analysis (95%CI). This systematic review followed the PRISMA guideline statement and was registered in the PROSPERO database (CRD42019134230). Seven studies were included, with a total of 321 participants analysed. Compared with no intervention, vestibular rehabilitation was more effective for balance development (SMD = 2.12; 95% CI = 0.49, 3.75; p = 0.01; I2 = 89%) and dizziness symptoms improvement (SMD = −17.43; 95% CI = −29.99, −4.87; p= 0.007; I2= 66%). Compared with other exercise interventions, improvements in favour of the experimental group were observed, but statistical significance for the differences between groups was not reached.
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19
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Ito T, Tatsumi K, Takimoto Y, Nishimura T, Imai T, Yamanaka T, Takeda N, Wanaka A, Kitahara T. Vestibular Compensation after Vestibular Dysfunction Induced by Arsanilic Acid in Mice. Brain Sci 2019; 9:brainsci9110329. [PMID: 31752103 PMCID: PMC6896078 DOI: 10.3390/brainsci9110329] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/10/2019] [Accepted: 11/15/2019] [Indexed: 11/16/2022] Open
Abstract
When vestibular function is lost, vestibular compensation works for the reacquisition of body balance. For the study of vestibular dysfunction and vestibular compensation, surgical or chemical labyrinthectomy has been performed in various animal species. In the present study, we performed chemical labyrinthectomy using arsanilic acid in mice and investigated the time course of vestibular compensation through behavioral observations and histological studies. The surgical procedures required only paracentesis and storage of 50 µL of p-arsanilic acid sodium salt solution in the tympanic cavity for 5 min. From behavioral observations, vestibular functions were worst at 2 days and recovered by 7 days after surgery. Spontaneous nystagmus appeared at 1 day after surgery with arsanilic acid and disappeared by 2 days. Histological studies revealed specific damage to the vestibular endorgans. In the ipsilateral spinal vestibular nucleus, the medial vestibular nucleus, and the contralateral prepositus hypoglossal nucleus, a substantial number of c-Fos-immunoreactive cells appeared by 1 day after surgery with arsanilic acid, with a maximum increase in number by 2 days and complete disappearance by 7 days. Taken together, these findings indicate that chemical labyrinthectomy with arsanilic acid and the subsequent observation of vestibular compensation is a useful strategy for elucidation of the molecular mechanisms underlying vestibular pathophysiologies.
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Affiliation(s)
- Taeko Ito
- Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, Kashihara 634-8522, Japan; (T.N.); (T.Y.); (T.K.)
- Correspondence:
| | - Kouko Tatsumi
- Department of Anatomy and Neuroscience, Nara Medical University, Kashihara 634-8521, Japan; (K.T.); (A.W.)
| | - Yasumitsu Takimoto
- Department of Otolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita 565-0871, Japan; (Y.T.); (T.I.)
| | - Tadashi Nishimura
- Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, Kashihara 634-8522, Japan; (T.N.); (T.Y.); (T.K.)
| | - Takao Imai
- Department of Otolaryngology-Head and Neck Surgery, Osaka University Graduate School of Medicine, Suita 565-0871, Japan; (Y.T.); (T.I.)
| | - Toshiaki Yamanaka
- Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, Kashihara 634-8522, Japan; (T.N.); (T.Y.); (T.K.)
| | - Noriaki Takeda
- Department of Otolaryngology, University of Tokushima School of Medicine, Tokushima 770-8503, Japan;
| | - Akio Wanaka
- Department of Anatomy and Neuroscience, Nara Medical University, Kashihara 634-8521, Japan; (K.T.); (A.W.)
| | - Tadashi Kitahara
- Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, Kashihara 634-8522, Japan; (T.N.); (T.Y.); (T.K.)
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20
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Jahn K, Lopez C, Zwergal A, Zur O, Cakrt O, Kellerer S, Kerkeni H, Tjernström F, Meldrum D. Vestibular rehabilitation therapy in Europe: chances and challenges. J Neurol 2019; 266:9-10. [PMID: 31102020 DOI: 10.1007/s00415-019-09368-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/04/2019] [Accepted: 05/07/2019] [Indexed: 02/05/2023]
Affiliation(s)
- Klaus Jahn
- German Center for Vertigo and Balance Disorders (DSGZ), University Hospital Grosshadern, Ludwig-Maximilians University of Munich, Munich, Germany. .,Department of Neurology and Neurorehabilitation, Schoen Clinic Bad Aibling, Kolbermoorer Strasse 72, Bad Aibling, 83043, Munich, Germany.
| | - Christophe Lopez
- Laboratoire de Neurosciences Sensorielles Et Cognitives, CNRS Aix-Marseille Université, Marseille, France
| | - Andreas Zwergal
- German Center for Vertigo and Balance Disorders (DSGZ), University Hospital Grosshadern, Ludwig-Maximilians University of Munich, Munich, Germany.,Department of Neurology, University Hospital Grosshadern, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Oz Zur
- Department of Physical Therapy, Ben Gurion University of the Negev, Beer Sheva, Israel.,The Israeli Center for Treating Dizziness and Balance Disorders, Ra'anana, Israel
| | - Ondrej Cakrt
- Department of Rehabilitation and Sports Medicine, Charles University and Motol University Hospital Prague, Prague, Czech Republic
| | - Silvy Kellerer
- German Center for Vertigo and Balance Disorders (DSGZ), University Hospital Grosshadern, Ludwig-Maximilians University of Munich, Munich, Germany
| | - Hassen Kerkeni
- Department of Neurology, University Hospital-Inselspital, Bern, Switzerland
| | - Fredrik Tjernström
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Clinical Sciences, Lund University, Lund, Sweden
| | - Dara Meldrum
- Academic Unit of Neurology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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21
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Alberts BBGT, Selen LPJ, Medendorp WP. Age-related reweighting of visual and vestibular cues for vertical perception. J Neurophysiol 2019; 121:1279-1288. [PMID: 30699005 DOI: 10.1152/jn.00481.2018] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
As we age, the acuity of our sensory organs declines, which may affect our lifestyle. Sensory deterioration in the vestibular system is typically bilateral and gradual, and could lead to problems with balance and spatial orientation. To compensate for the sensory deterioration, it has been suggested that the brain reweights the sensory information sources according to their relative noise characteristics. For rehabilitation and training programs, it is important to understand the consequences of this reweighting, preferably at the individual subject level. We psychometrically examined the age-dependent reweighting of visual and vestibular cues used in spatial orientation in a group of 32 subjects (age range: 19-76 yr). We asked subjects to indicate the orientation of a line (clockwise or counterclockwise relative to the gravitational vertical) presented within an oriented square visual frame when seated upright or with their head tilted 30° relative to the body. Results show that subjects' vertical perception is biased by the orientation of the visual frame. Both the magnitude of this bias and response variability become larger with increasing age. Deducing the underlying sensory noise characteristics, using Bayesian inference, suggests an age-dependent reweighting of sensory information, with an increasing weight of the visual contextual information. Further scrutiny of the model suggests that this shift in sensory weights is the result of an increase in the noise of the vestibular signal. Our approach quantifies how noise properties of visual and vestibular systems change over the life span, which helps to understand the aging process at the neurocomputational level. NEW & NOTEWORTHY Perception of visual vertical involves a weighted fusion of visual and vestibular tilt cues. Using a Bayesian approach and experimental psychophysics, we quantify how this fusion process changes with age. We show that, with age, the vestibular information is down-weighted whereas the visual weight is increased. This shift in sensory reweighting is primarily due to an age-related increase of the noise of vestibular signals.
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Affiliation(s)
- Bart B G T Alberts
- Radboud University , Donders Institute for Brain, Cognition and Behaviour, Nijmegen , The Netherlands
| | - Luc P J Selen
- Radboud University , Donders Institute for Brain, Cognition and Behaviour, Nijmegen , The Netherlands
| | - W Pieter Medendorp
- Radboud University , Donders Institute for Brain, Cognition and Behaviour, Nijmegen , The Netherlands
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Sjögren J, Fransson PA, Karlberg M, Magnusson M, Tjernström F. Functional Head Impulse Testing Might Be Useful for Assessing Vestibular Compensation After Unilateral Vestibular Loss. Front Neurol 2018; 9:979. [PMID: 30510538 PMCID: PMC6252383 DOI: 10.3389/fneur.2018.00979] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 10/30/2018] [Indexed: 11/13/2022] Open
Abstract
Background: Loss of the vestibulo-ocular reflex (VOR) affects visual acuity during head movements. Previous studies have shown that compensatory eye-saccades improve visual acuity and that the timing of the saccade is important. Most of the tests involved in testing VOR are made with passive head movement, that do not necessarily reflect the activities of daily living and thus not being proportionate to symptoms and distresses of the patients. Objective: To examine differences between active (self-generated) or passive (imposed by the examiner) head rotations while trying to maintain visual focus on a target. Method: Nine subjects with unilateral total vestibular loss were recruited (4 men and 5 women, mean age 47) and tested with video Head Impulse Test (vHIT) and Head Impulse Testing Device-Functional Test (HITD-FT) during passive and active movements while looking at a target. VOR gain, latencies of covert saccades, frequency of covert saccades and visual acuity were measured and analyzed. Results: Active head-impulses toward the lesioned side resulted in better visual acuity (p = 0.002) compared to conventional passive head-impulses and generated eye-saccades with significantly shorter latencies (p = 0.004). Active movements to the lesioned side generated dynamic visual acuities that were as good as when testing the intact side. Conclusion: Actively generated head impulses resulted in normal dynamic visual acuity, even when performed toward the side of total vestibular loss. This might be attributed to the appearance of short-latency covert saccades. The results show a strong relationship between self-generated movements, latencies of covert saccades and outcome in HITD-FT, i.e., a better dynamic visual function with less retinal slip which is the main function of the VOR. The method of active HITD-FT might be valuable in assessing vestibular compensation and monitoring ongoing vestibular rehabilitation.
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Affiliation(s)
- Julia Sjögren
- Department of Clinical Sciences Lund, Faculty of Medicine, Skåne University Hospital, Lund University, Lund, Sweden
| | - Per-Anders Fransson
- Department of Clinical Sciences Lund, Faculty of Medicine, Skåne University Hospital, Lund University, Lund, Sweden
| | - Mikael Karlberg
- Department of Clinical Sciences Lund, Faculty of Medicine, Skåne University Hospital, Lund University, Lund, Sweden
| | - Måns Magnusson
- Department of Clinical Sciences Lund, Faculty of Medicine, Skåne University Hospital, Lund University, Lund, Sweden
| | - Fredrik Tjernström
- Department of Clinical Sciences Lund, Faculty of Medicine, Skåne University Hospital, Lund University, Lund, Sweden
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23
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Neurophilosophical and Ethical Aspects of Virtual Reality Therapy in Neurology and Psychiatry. Camb Q Healthc Ethics 2018; 27:610-627. [DOI: 10.1017/s0963180118000129] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Abstract:Highly immersive virtual reality (VR) systems have been introduced into the consumer market in recent years. The improved technological capabilities of these systems as well as the combination with biometric sensors, for example electroencephalography (EEG), in a closed-loop hybrid VR-EEG, opens up a range of new potential medical applications. This article first provides an overview of the past and current clinical applications of VR systems in neurology and psychiatry and introduces core concepts in neurophilosophy and VR research (such as agency, trust, presence, and others). Then, important adverse effects of highly immersive VR simulations and the ethical implications of standalone and hybrid VR systems for therapy in neurology and psychiatry are highlighted. These new forms of VR-based therapy may strengthen patients in exercising their autonomy. At the same time, however, these emerging systems present ethical challenges, for example in terms of moral and legal accountability in interactions involving “intelligent” hybrid VR systems. A user-centered approach that is informed by the target patients’ needs and capabilities could help to build beneficial systems for VR therapy.
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Swanenburg J, Wild K, Straumann D, de Bruin ED. Exergaming in a Moving Virtual World to Train Vestibular Functions and Gait; a Proof-of-Concept-Study With Older Adults. Front Physiol 2018; 9:988. [PMID: 30108511 PMCID: PMC6080593 DOI: 10.3389/fphys.2018.00988] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/05/2018] [Indexed: 12/29/2022] Open
Abstract
Background: The use of Exergames designed to improve physical and cognitive functioning is relatively new in rehabilitation. Exergaming allows the training of skills, the handling of tools, and procedures; however, often, the potential of these aspects are not assessed before they are adopted in clinical settings. This study aimed at exploring the effects of exergaming on vestibular functions and gait in healthy community dwelling older adults using a proof-of-concept study design registered under ClinicalTrials.gov NCT03160352. Methods: A pre-test-post-test one-group study design comprising 10 older adults (mean age of 73.5 ± 7.6 years, four males) investigated the feasibility of eight exergaming training sessions (for 160 min) and the effects on dynamic visual acuity (DVA), functional gait assessment (FGA), and extended timed get-up-and-go (ETGUG). The simulator sickness questionnaire (SSQ) and the game scores were evaluated for the feasibility of the intervention. Wilcoxon test and Cohen's d (d) were chosen to test for differences and for effect size estimation. Results: Exergaming led to a significantly improved DVA (z = -2.50, p = 0.01, d = 1.35) with improvements in 9 out of 10 participants. In addition, the FGA significantly improved with a large effect size (z = -2.25, p = 0.02, d = 1.17). Specifically, component tasks such as walking with horizontal head turns (p = 0.03), gait with a narrow base of support (p = 0.03), ambulating backward (p = 0.05) significantly improved. The ETGUG component task Gait initiation significantly improved (p = 0.04). No change was found in gait speed and SSQ. The game scores of the participants improved continuously during the course of the intervention for every game. Discussion: This proof-of-concept study suggests that the use of exergaming that requires active stepping movements and that contains moving game projection is feasible and facilitates gaze stability during head movements in healthy community dwelling older adults. Aspects of functional gait and gait initiation also improved. Future research aimed at testing this exergaming intervention in patients suffering from vestibular impairments is warranted.
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Affiliation(s)
- Jaap Swanenburg
- Physiotherapy and Occupational Therapy Research Center, Directorate of Research and Education, University Hospital Zurich, University of Zurich, Zurich, Switzerland.,Integrative Spinal Research (ISR), Department of Chiropractic Medicine, Balgrist University Hospital, Zurich, Switzerland
| | - Karin Wild
- Department Health Sciences and Technology, Institute of Human Movement Sciences and Sport, ETH Zurich, Zurich, Switzerland
| | - Dominik Straumann
- Department of Neurology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Eling D de Bruin
- Department Health Sciences and Technology, Institute of Human Movement Sciences and Sport, ETH Zurich, Zurich, Switzerland.,Division of Physiotherapy, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
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25
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Medendorp WP, Alberts BBGT, Verhagen WIM, Koppen M, Selen LPJ. Psychophysical Evaluation of Sensory Reweighting in Bilateral Vestibulopathy. Front Neurol 2018; 9:377. [PMID: 29910766 PMCID: PMC5992424 DOI: 10.3389/fneur.2018.00377] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/08/2018] [Indexed: 11/13/2022] Open
Abstract
Perception of spatial orientation is thought to rely on the brain's integration of visual, vestibular, proprioceptive, and somatosensory signals, as well as internal beliefs. When one of these signals breaks down, such as the vestibular signal in bilateral vestibulopathy, patients start compensating by relying more on the remaining cues. How these signals are reweighted in this integration process is difficult to establish, since they cannot be measured in isolation during natural tasks, are inherently noisy, and can be ambiguous or in conflict. Here, we review our recent work, combining experimental psychophysics with a reverse engineering approach, based on Bayesian inference principles, to quantify sensory noise levels and optimal (re)weighting at the individual subject level, in both patients with bilateral vestibular deficits and healthy controls. We show that these patients reweight the remaining sensory information, relying more on visual and other nonvestibular information than healthy controls in the perception of spatial orientation. This quantification approach could improve diagnostics and prognostics of multisensory integration deficits in vestibular patients, and contribute to an evaluation of rehabilitation therapies directed toward specific training programs.
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Affiliation(s)
- W. Pieter Medendorp
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands
| | - Bart B. G. T. Alberts
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands
| | - Wim I. M. Verhagen
- Department of Neurology, Canisius Wilhelmina Hospital, Nijmegen, Netherlands
| | - Mathieu Koppen
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands
| | - Luc P. J. Selen
- Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands
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26
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Antivertiginous drug therapy does not hinder the efficacy of individualized vibrotactile neurofeedback training for vestibular rehabilitation - a randomized trial. Int J Rehabil Res 2018; 40:333-338. [PMID: 28777127 DOI: 10.1097/mrr.0000000000000245] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Vestibular rehabilitation using individualized vibrotactile neurofeedback training (IVNT) can lead to significant improvement in the postural stability of patients with vestibular symptoms of different origins. However, some of these patients have complex, severe dizziness, meaning that a pharmacological pretreatment or parallel (to vestibular rehabilitation) treatment can help them perform the rehabilitation exercises. Hence, the present study investigated the influence of a pharmacological treatment on the efficacy of vibrotactile neurofeedback training in patients with chronic, noncompensated vestibulopathies. All participants performed IVNT for ∼10 min each day for 2 weeks. In addition, every second participant was selected randomly to receive oral medication (20 mg cinnarizine and 40 mg dimenhydrinate per tablet), taking three tables per day. Trunk and ankle sway and postural stability were measured. In addition, the dizziness handicap inventory was evaluated immediately before training on the last day of training and 6 months after training. After the 10-day period of IVNT, both groups showed a statistically significant improvement in all parameters tested. A follow-up analysis after 6 months showed a long-term efficacy for the IVNT, that is, the patients remained significantly improved in their postural stability. The antivertiginous therapy did not hinder the efficacy of the IVNT. The present results indicate that IVNT even in combination with an antivertiginous drug therapy is an effective treatment regime for patients with disabling vertigo of different origins.
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27
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Jahn K, Saul AK, Elstner M, Sapa K, Kellerer S. Vestibular rehabilitation therapy and Nintendo Wii balance board training both improve postural control in bilateral vestibulopathy. J Neurol 2018; 265:70-73. [DOI: 10.1007/s00415-018-8882-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 11/24/2022]
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28
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Alberts BBGT, Selen LPJ, Verhagen WIM, Pennings RJE, Medendorp WP. Bayesian quantification of sensory reweighting in a familial bilateral vestibular disorder (DFNA9). J Neurophysiol 2017; 119:1209-1221. [PMID: 29357473 DOI: 10.1152/jn.00082.2017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
DFNA9 is a rare progressive autosomal dominantly inherited vestibulo-cochlear disorder, resulting in a homogeneous group of patients with hearing impairment and bilateral vestibular function loss. These patients suffer from a deteriorated sense of spatial orientation, leading to balance problems in darkness, especially on irregular surfaces. Both behavioral and functional imaging studies suggest that the remaining sensory cues could compensate for the loss of vestibular information. A thorough model-based quantification of this reweighting in individual patients is, however, missing. Here we psychometrically examined the individual patient's sensory reweighting of these cues after complete vestibular loss. We asked a group of DFNA9 patients and healthy control subjects to judge the orientation (clockwise or counterclockwise relative to gravity) of a rod presented within an oriented square frame (rod-in-frame task) in three different head-on-body tilt conditions. Our results show a cyclical frame-induced bias in perceived gravity direction across a 90° range of frame orientations. The magnitude of this bias was significantly increased in the patients compared with the healthy control subjects. Response variability, which increased with head-on-body tilt, was also larger for the patients. Reverse engineering of the underlying signal properties, using Bayesian inference principles, suggests a reweighting of sensory signals, with an increase in visual weight of 20-40% in the patients. Our approach of combining psychophysics and Bayesian reverse engineering is the first to quantify the weights associated with the different sensory modalities at an individual patient level, which could make it possible to develop personal rehabilitation programs based on the patient's sensory weight distribution. NEW & NOTEWORTHY It has been suggested that patients with vestibular deficits can compensate for this loss by increasing reliance on other sensory cues, although an actual quantification of this reweighting is lacking. We combine experimental psychophysics with a reverse engineering approach based on Bayesian inference principles to quantify sensory reweighting in individual vestibular patients. We discuss the suitability of this approach for developing personal rehabilitation programs based on the patient's sensory weight distribution.
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Affiliation(s)
- Bart B G T Alberts
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen , Nijmegen , The Netherlands
| | - Luc P J Selen
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen , Nijmegen , The Netherlands
| | - Wim I M Verhagen
- Neurology, Canisius Wilhelmina Hospital , Nijmegen , The Netherlands
| | - Ronald J E Pennings
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen , Nijmegen , The Netherlands.,Department of Otorhinolaryngology, Radboud University Medical Centre , Nijmegen , The Netherlands
| | - W Pieter Medendorp
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen , Nijmegen , The Netherlands
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29
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Batuecas-Caletrio A, Rey-Martinez J, Trinidad-Ruiz G, Matiño-Soler E, Cruz-Ruiz SS, Muñoz-Herrera A, Perez-Fernandez N. Vestibulo-Ocular Reflex Stabilization after Vestibular Schwannoma Surgery: A Story Told by Saccades. Front Neurol 2017; 8:15. [PMID: 28179894 PMCID: PMC5263125 DOI: 10.3389/fneur.2017.00015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 01/11/2017] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To evaluate vestibular compensation via measurement of the vestibulo-ocular reflex (VOR) following vestibular schwannoma surgery and its relationship with changes in saccades strategy after surgery. PATIENTS Thirty-six consecutive patients with vestibular schwannomas, without brainstem compression, underwent surgical resection. Patients were recruited from University Hospital of Salamanca, Spain. METHODS We assessed the age, sex, tumor size, degree of canalicular weakness, and preoperative video head impulse test (gain and saccade organization measured with PR score). Gain and saccade organization were compared with postoperative values at discharge and also at 1, 3, and 6 months. PR scores are a measure of the scatter of refixation saccades. RESULTS Patients with normal preoperative caloric function had higher PR scores (saccades were scattered) following surgery compared to patients with significant preoperative canal paresis (p < 0.05). VOR gain and the presence of covert/overt saccades preoperatively did not influence the PR score (p > 0.05), but a group of patients with very low VOR gain (<0.45) and covert/overt saccades before surgery had lower PR scores after surgery. The differences after 6 months were not significant. CONCLUSION Patients with more severe vestibular dysfunction before vestibular schwannoma surgery show significantly faster vestibular compensation following surgery, manifested by changes in VOR gain and PR score. The scatter of compensatory saccades (as measured by the PR score) may be a surrogate early marker of clinical recovery, given its relationship to the Dizziness Handicap Inventory.
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Affiliation(s)
- Angel Batuecas-Caletrio
- Otoneurology Unit, Department of Otorhinolaryngology, University Hospital of Salamanca, IBSAL, Salamanca, Spain
- Skull Base Unit, Department of Otorhinolaryngology, University Hospital of Salamanca, IBSAL, Salamanca, Spain
| | | | - Gabriel Trinidad-Ruiz
- Otoneurology Unit, Department of Otorhinolaryngology, University Hospital of Badajoz, Badajoz, Spain
| | - Eusebi Matiño-Soler
- Department of Otorhinolaryngology, Hospital General de Catalunya, Barcelona, Spain
| | - Santiago Santa Cruz-Ruiz
- Otoneurology Unit, Department of Otorhinolaryngology, University Hospital of Salamanca, IBSAL, Salamanca, Spain
- Skull Base Unit, Department of Otorhinolaryngology, University Hospital of Salamanca, IBSAL, Salamanca, Spain
| | - Angel Muñoz-Herrera
- Otoneurology Unit, Department of Otorhinolaryngology, University Hospital of Salamanca, IBSAL, Salamanca, Spain
- Skull Base Unit, Department of Otorhinolaryngology, University Hospital of Salamanca, IBSAL, Salamanca, Spain
| | - Nicolas Perez-Fernandez
- Otoneurology Unit, Department of Otorhinolaryngology, Clínica Universidad de Navarra, University Hospital and Medical School, University of Navarra, Pamplona, Spain
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30
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Lurati AR. A Return to Work Program for an Employee With Resolving Vertigo. Workplace Health Saf 2017; 65:4-8. [PMID: 28055516 DOI: 10.1177/2165079916680214] [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: 11/17/2022]
Abstract
Vertigo is a disorder that affects equilibrium. Symptoms include a loss of balance with nausea and vomiting. Employees diagnosed with vertigo can return to work safely; however, they may need workplace restrictions and accommodation as symptoms may persist for months. This article reviews the evaluation and treatment of vertigo with back-to-work recommendations.
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