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Sharif M, Rea O, Burling R, Ellul Miraval M, Patel R, Saman Y, Rea P, Yoon HJ, Kheradmand A, Arshad Q. Migrainous vertigo impairs adaptive learning as a function of uncertainty. Front Neurol 2024; 15:1436127. [PMID: 39119559 PMCID: PMC11306035 DOI: 10.3389/fneur.2024.1436127] [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] [Received: 05/21/2024] [Accepted: 07/03/2024] [Indexed: 08/10/2024] Open
Abstract
Objective In this study, we examined whether vestibular migraine, as a source of increased perceptual uncertainty due to the associated dizziness, interferes with adaptive learning. Methods The IOWA gambling task (IGT) was used to assess adaptive learning in both healthy controls and patients with migraine-related dizziness. Participants were presented with four decks of cards (A, B, C, and D) and requested to select a card over 100 trials. Participants received a monetary reward or a penalty with equal probability when they selected a card. Card decks A and B (high-risk decks) involved high rewards (win £100) and high penalties (lose £250), whereas C and D (low-risk decks; favorable reward-to-punishment ratio) involved lower rewards (win £50) and penalties (lose £50). Task success required participants to decide (i.e., adaptively learn) through the feedback they received that C and D were the advantageous decks. Results The study revealed that patients with vestibular migraine selected more high-risk cards than the control group. Chronic vestibular migraine patients showed delayed improvement in task performance than those with acute presentation. Only in acute vestibular migraine patients, we observed that impaired learning positively correlated with measures of dizzy symptoms. Conclusion The findings of this study have clinical implications for how vestibular migraine can affect behavioural adaption in patients, either directly through altered perception or indirectly by impacting cognitive processes that can result in maladaptive behavior.
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Affiliation(s)
- Mishaal Sharif
- inAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Oliver Rea
- inAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Rose Burling
- inAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Mel Ellul Miraval
- inAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Rakesh Patel
- Faculty of Health and Life Sciences, De Monfort University, Leicester, United Kingdom
| | - Yougan Saman
- inAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Peter Rea
- E.N.T Department, Leicester Royal Infirmary, Balance Clinic, Leicester, United Kingdom
| | - Ha-Jun Yoon
- inAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, United Kingdom
| | - Amir Kheradmand
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Department of Otolaryngology and Head & Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Qadeer Arshad
- inAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, United Kingdom
- Department of Brain Sciences, Centre for Vestibular Neurology, Imperial College, London, United Kingdom
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Toriyama T, Hanaoka Y, Horiuchi T. Interictal widespread pressure hyperalgesia and aura: associations with vestibular migraine in a cross-sectional study. Front Neurol 2024; 15:1405590. [PMID: 39022731 PMCID: PMC11253371 DOI: 10.3389/fneur.2024.1405590] [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] [Received: 03/23/2024] [Accepted: 06/21/2024] [Indexed: 07/20/2024] Open
Abstract
Background Patients with vestibular migraine (VM) exhibit higher levels of central sensitization and share similar disorder characteristics with migraine with vestibular symptoms (MwVS), except in terms of disability. These patients experience fluctuating mechanical pain thresholds and persistent vestibular symptoms even without a migraine attack. Objective This study aimed to investigate whether interictal allodynia or hyperalgesia can differentiate between VM, MwVS, and migraine only. Methods We conducted a cross-sectional study of patients with episodic migraine aged between 18 and 65 years, categorized into three groups. A questionnaire was used to collect and compare demographic and clinical variables. Interictal widespread pressure hyperalgesia (IWPH) was evaluated using the Manual Tender Point Survey. Patients with tender point counts ≥7 were classified as having IWPH. Results The study included 163 patients: 31 with VM, 54 with MwVS, and 78 with migraine without vestibular symptoms (migraine only). We found that aura (p = 0.042, odds ratio 3.50, 95% confidence interval 1.26-10.4), tender point count (p < 0.001, d = 0.889, median difference = 2), and IWPH (p = 0.002, odds ratio 5.3, 95% confidence interval 1.80-17.2) were significantly associated with VM compared to MwVS. Aura and IWPH were significantly associated with VM. However, there were no significant associations observed for interictal allodynia or hyperalgesia between the other two groups. Conclusion IWPH and aura are associated with VM, indicating their potential roles in its pathogenesis. These findings may contribute to the differential diagnosis and management of migraine, potentially leading to targeted treatment strategies.
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Affiliation(s)
| | - Yoshiki Hanaoka
- Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tetsuyoshi Horiuchi
- Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan
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Huang TC, Arshad Q, Kheradmand A. Focused Update on Migraine and Vertigo Comorbidity. Curr Pain Headache Rep 2024; 28:613-620. [PMID: 38635020 DOI: 10.1007/s11916-024-01256-0] [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] [Accepted: 04/04/2024] [Indexed: 04/19/2024]
Abstract
PURPOSE OF REVIEW To provide an update on comorbidity of vestibular symptoms and migraine. RECENT FINDINGS Multisensory processing and integration is a key concept for understanding mixed presentation of migraine and vestibular symptoms. Here, we discuss how vestibular migraine should be distinguished from a secondary migraine phenomenon in which migraine symptoms may coincide with or triggered by another vestibular disorder. We also have some updates on the diagnostic criteria of vestibular migraine, its pathophysiology, and common approaches used for its treatment. As a common clinical presentation of migraine and vestibular symptoms, vestibular migraine should be distinguished from a secondary migraine phenomenon, in which migraine symptoms may be triggered by or coincide with another vestibular disorder. Recent experimental evidence suggests vestibular symptoms in vestibular migraine are linked to multisensory mechanisms that control body motion and orientation in space.
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Affiliation(s)
| | - Qadeer Arshad
- Centre for Vestibular Neurosciences, Department of Brain Sciences, Imperial College London, London, UK
- inAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, UK
| | - Amir Kheradmand
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Laboratory of Computational Sensing and Robotics (LCSR), Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Chang TP, Hong YC, Schubert MC. Visual vertigo and motion sickness is different between persistent postural-perceptual dizziness and vestibular migraine. Am J Otolaryngol 2024; 45:104321. [PMID: 38696894 DOI: 10.1016/j.amjoto.2024.104321] [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: 01/15/2024] [Accepted: 04/18/2024] [Indexed: 05/04/2024]
Abstract
INTRODUCTION Persistent postural-perceptual dizziness (PPPD) and vestibular migraine (VM) share symptoms of visual vertigo and motion sickness that can be confusing for clinicians to distinguish. We compare the severity of these symptoms and dynamic subjective visual vertical (dSVV) in these two common vestibular conditions. METHOD Twenty-nine patients with PPPD, 37 with VM, and 29 controls were surveyed for subjective symptoms using the visual vertigo analogue scale (VVAS) and motion sickness susceptibility questionnaire during childhood (MSA) and the past 10 years (MSB). dSVV is a measure of visual dependence measures perception of verticality against a rotating background (5 deg./s). RESULTS VVAS revealed contextual differences for dizziness between those with PPPD and VM. Ratings of visual vertigo were most severe in PPPD, less in VM, and mild in controls (VVAS PPPD 27.1, VM 11.2, control 4.6, p < 0.001). MSA was more severe in VM than in PPPD or control (12.8 vs 7.6 vs 8.5, p = 0.01). MSB was more severe in VM than controls (MSB score 12.9 VS 8.1 p = 0.009) but was not different than PPPD (MSB score 10.0, p = 0.10). dSVV alignment was similar among the three groups (p = 0.83). Both VM and PPPD groups had greater simulator sickness than controls after completing the dSVV. CONCLUSIONS Patients with PPPD report more visual vertigo than those with VM, but a history of motion sickness as a child is more common in VM. Additionally, the environmental context that induces visual vertigo is different between PPPD and VM.
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Affiliation(s)
- Tzu-Pu Chang
- Department of Neurology/Neuro-medical Scientific Center, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan; Department of Neurology, School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Ying-Chi Hong
- Department of Research, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
| | - Michael C Schubert
- Laboratory of Vestibular NeuroAdaptation, Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Takeda T, Tajino J, Merfeld DM. Frequency dependence of human thresholds: both perceptual and vestibuloocular reflex thresholds. J Neurophysiol 2024; 131:1143-1155. [PMID: 38658179 DOI: 10.1152/jn.00224.2023] [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: 05/31/2023] [Revised: 04/24/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024] Open
Abstract
Although perceptual thresholds have been widely studied, vestibuloocular reflex (VOR) thresholds have received less attention, so the relationship between VOR and perceptual thresholds remains unclear. We compared the frequency dependence of human VOR thresholds to human perceptual thresholds for yaw head rotation in both upright ("yaw rotation") and supine ("yaw tilt") positions, using the same human subjects and motion device. VOR thresholds were generally a little smaller than perceptual thresholds. We also found that horizontal VOR thresholds for both yaw rotation about an Earth-vertical axis and yaw tilt (yaw rotation about an Earth-horizontal axis) were relatively constant across four frequencies (0.2, 0.5, 1, and 2 Hz), with little difference between yaw rotation and yaw tilt VOR thresholds. For yaw tilt stimuli, perceptual thresholds were slightly lower at the lowest frequency and nearly constant at all other (higher) frequencies. However, for yaw rotation, perceptual thresholds increased significantly at the lowest frequency (0.2 Hz). We conclude 1) that VOR thresholds were relatively constant across frequency for both yaw rotation and yaw tilt, 2) that the known contributions of velocity storage to the VOR likely yielded these VOR thresholds that were similar for yaw rotation and yaw tilt for all frequencies tested, and 3) that the integration of otolith and horizontal canal signals during yaw tilt when supine contributes to stable perceptual thresholds, especially relative to the low-frequency perceptual thresholds recorded during yaw rotation.NEW & NOTEWORTHY We describe for the first time that human VOR thresholds differ from human forced-choice perceptual thresholds, with the difference especially evident at frequencies below 0.5 Hz. We also report that VOR thresholds are relatively constant across frequency for both yaw rotation and yaw tilt. These findings are consistent with the idea that high-pass filtering in cortical pathways impacts cognitive decision-making.
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Affiliation(s)
- Takamori Takeda
- Department of Otolaryngology, The Ohio State University, Columbus, Ohio, United States
| | - Junichi Tajino
- Department of Otolaryngology, The Ohio State University, Columbus, Ohio, United States
| | - Daniel M Merfeld
- Department of Otolaryngology, The Ohio State University, Columbus, Ohio, United States
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Mangalam M, Seleznov I, Kolosova E, Popov A, Kelty-Stephen DG, Kiyono K. Postural control in gymnasts: anisotropic fractal scaling reveals proprioceptive reintegration in vestibular perturbation. FRONTIERS IN NETWORK PHYSIOLOGY 2024; 4:1393171. [PMID: 38699200 PMCID: PMC11063314 DOI: 10.3389/fnetp.2024.1393171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/05/2024] [Indexed: 05/05/2024]
Abstract
Dexterous postural control subtly complements movement variability with sensory correlations at many scales. The expressive poise of gymnasts exemplifies this lyrical punctuation of release with constraint, from coarse grain to fine scales. Dexterous postural control upon a 2D support surface might collapse the variation of center of pressure (CoP) to a relatively 1D orientation-a direction often oriented towards the focal point of a visual task. Sensory corrections in dexterous postural control might manifest in temporal correlations, specifically as fractional Brownian motions whose differences are more and less correlated with fractional Gaussian noises (fGns) with progressively larger and smaller Hurst exponent H. Traditional empirical work examines this arrangement of lower-dimensional compression of CoP along two orthogonal axes, anteroposterior (AP) and mediolateral (ML). Eyes-open and face-forward orientations cultivate greater variability along AP than ML axes, and the orthogonal distribution of spatial variability has so far gone hand in hand with an orthogonal distribution of H, for example, larger in AP and lower in ML. However, perturbing the orientation of task focus might destabilize the postural synergy away from its 1D distribution and homogenize the temporal correlations across the 2D support surface, resulting in narrower angles between the directions of the largest and smallest H. We used oriented fractal scaling component analysis (OFSCA) to investigate whether sensory corrections in postural control might thus become suborthogonal. OFSCA models raw 2D CoP trajectory by decomposing it in all directions along the 2D support surface and fits the directions with the largest and smallest H. We studied a sample of gymnasts in eyes-open and face-forward quiet posture, and results from OFSCA confirm that such posture exhibits the classic orthogonal distribution of temporal correlations. Head-turning resulted in a simultaneous decrease in this angle Δθ, which promptly reversed once gymnasts reoriented their heads forward. However, when vision was absent, there was only a discernible negative trend in Δθ, indicating a shift in the angle's direction but not a statistically significant one. Thus, the narrowing of Δθ may signify an adaptive strategy in postural control. The swift recovery of Δθ upon returning to a forward-facing posture suggests that the temporary reduction is specific to head-turning and does not impose a lasting burden on postural control. Turning the head reduced the angle between these two orientations, facilitating the release of postural degrees of freedom towards a more uniform spread of the CoP across both dimensions of the support surface. The innovative aspect of this work is that it shows how fractality might serve as a control parameter of adaptive mechanisms of dexterous postural control.
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Affiliation(s)
- Madhur Mangalam
- Division of Biomechanics and Research Development, Department of Biomechanics, and Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, NE, United States
| | - Ivan Seleznov
- Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - Elena Kolosova
- National University of Ukraine on Physical Education and Sport, Scientific Research Institute, Kyiv, Ukraine
- Department of Movement Physiology, Bogomoletz Institute of Physiology, Kyiv, Ukraine
| | - Anton Popov
- Department of Electronic Engineering, Igor Sikorsky Kyiv Polytechnic Institute, Kyiv, Ukraine
- Faculty of Applied Sciences, Ukrainian Catholic University, Lviv, Ukraine
| | - Damian G. Kelty-Stephen
- Department of Psychology, State University of New York at New Paltz, New Paltz, NY, United States
| | - Ken Kiyono
- Graduate School of Engineering Science, Osaka University, Osaka, Japan
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Law JH, Koh HY, Kua A. Optokinetic stimulation in the rehabilitation of visually induced dizziness in people with vestibular disorders: A systematic review. Clin Rehabil 2024:2692155241244932. [PMID: 38584422 DOI: 10.1177/02692155241244932] [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: 04/09/2024]
Abstract
OBJECTIVE This systematic review and meta-analysis investigates the effects optokinetic stimulation in people with vestibular disorders, with a specific focus on people with visually induced dizziness. DATA SOURCES A systematic review was conducted using three electronic databases, CINAHL, PubMed and Physiotherapy Evidence Database (PEDro), from 2000 up to February 2024. REVIEW METHODS Randomised controlled trials were included, which compared: (a) adults above 18 years old with vestibular disorders, (b) the study evaluated interventions using optokinetic stimulation, (c) the intervention was compared with usual care; placebo or to no intervention, (d) the study included at least one outcome measure evaluating vestibular symptoms and (e) published in English. The methodological quality of the included studies was assessed using the PEDro scale and PROSPERO's registration number ID: CRD42021273382). RESULTS Eleven randomised control trials, reported in 12 records, fulfilled the inclusion criteria. All of the studies were considered to have 'good' methodological quality according to the PEDro scale. All studies showed significant improvement in vestibular symptoms in both the intervention and control groups. A meta-analysis performed on six of the records found a preference towards the addition of OKS to conventional vestibular rehabilitation helped to further reduce dizziness symptoms for patients, but the results were not statistically significant. CONCLUSION No optimal duration or frequency for OKS has been determined. The addition of OKS to conventional vestibular rehabilitation may be beneficial in further improving vestibular symptoms in patients with dizziness. OKS could help to improve enjoyment and adherence to vestibular rehabilitation.
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Affiliation(s)
- Jessica Hj Law
- Department of Rehabilitation, National University Hospital, Singapore, Singapore
| | - Hui Ying Koh
- Department of Rehabilitation, National University Hospital, Singapore, Singapore
| | - Agnes Kua
- Department of Rehabilitation, National University Hospital, Singapore, Singapore
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Johansson J, Möller M, Markovic G, Borg K. Vision impairment is common in non-hospitalised patients with post-COVID-19 syndrome. Clin Exp Optom 2024; 107:324-331. [PMID: 37201931 DOI: 10.1080/08164622.2023.2213826] [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: 02/16/2023] [Revised: 04/24/2023] [Accepted: 05/09/2023] [Indexed: 05/20/2023] Open
Abstract
CLINICAL RELEVANCE Vision-related problems can be part of longstanding sequelae after COVID-19 and hamper the return to work and daily activities. Knowledge about symptoms, visual, and oculomotor dysfunctions is however scarce, particularly for non-hospitalised patients. Clinically applicable tools are needed as support in the assessment and determination of intervention needs. BACKGROUND The purpose of this study was to evaluate vision-related symptoms, assess visual and oculomotor function, and to test the clinical assessment of saccadic eye movements and sensitivity to visual motion in non-hospitalised post-COVID-19 outpatients. The patients (n = 38) in this observational cohort study were recruited from a post-COVID-19 clinic and had been referred for neurocognitive assessment. METHODS Patients who reported vision-related symptoms reading problems and intolerance to movement in the environment were examined. A structured symptom assessment and a comprehensive vision examination were undertaken, and saccadic eye movements and visual motion sensitivity were assessed. RESULTS High symptom scores (26-60%) and prevalence of visual function impairments were observed. An increased symptom score when reading was associated with less efficient saccadic eye movement behaviour (p < 0.001) and binocular dysfunction (p = 0.029). Patients with severe symptoms in visually busy places scored significantly higher on the Visual Motion Sensitivity Clinical Test Protocol (p = 0.029). CONCLUSION Vision-related symptoms and impairments were prevalent in the study group. The Developmental Eye Movement Test and the Visual Motion Sensitivity Clinical Test Protocol showed promise for clinical assessment of saccadic performance and sensitivity to movement in the environment. Further study will be required to explore the utility of these tools.
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Affiliation(s)
- Jan Johansson
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
| | - Marika Möller
- Division of Rehabilitation Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Gabriela Markovic
- Division of Rehabilitation Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Kristian Borg
- Division of Rehabilitation Medicine, Karolinska Institutet, Stockholm, Sweden
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Hannigan IP, Rosengren SM, Bharathy GK, Prasad M, Welgampola MS, Watson SRD. Subjective and objective responses to caloric stimulation help separate vestibular migraine from other vestibular disorders. J Neurol 2024; 271:887-898. [PMID: 37847290 PMCID: PMC10828018 DOI: 10.1007/s00415-023-12027-z] [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: 07/28/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 10/18/2023]
Abstract
BACKGROUND Nystagmus generated during bithermal caloric test assesses the horizontal vestibulo-ocular-reflex. Any induced symptoms are considered unwanted side effects rather than diagnostic information. AIM We hypothesized that nystagmus slow-phase-velocity (SPV) and subjective symptoms during caloric testing would be higher in vestibular migraine (VM) patients compared with peripheral disorders such as Meniere's disease (MD) and non-vestibular dizziness (NVD). METHODS Consecutive patients (n = 1373, 60% female) referred for caloric testing were recruited. During caloric irrigations, patients scored their subjective sensations. We assessed objective-measures, subjective vertigo (SVS), subjective nausea (SNS), and test completion status. RESULTS Nystagmus SPV for VM, MD (unaffected side), and NVD were 29 ± 12.8, 30 ± 15.4, and 28 ± 14.2 for warm irrigation and 24 ± 8.9, 22 ± 10.0, and 25 ± 12.8 for cold-irrigation. The mean SVS were 2.5 ± 1.1, 1.5 ± 1.33, and 1.5 ± 1.42 for warm irrigation and 2.2 ± 1.1, 1.1 ± 1.19, and 1.1 ± 1.16 for cold-irrigation. Age was significantly correlated with SVS and SNS, (p < 0.001) for both. The SVS and SNS were significantly higher in VM compared with non-VM groups (p < 0.001), and there was no difference in nystagmus SPV. VM patients SVS was significantly different to the SVS of migraineurs in the other diagnostic groups (p < 0.001). Testing was incomplete for 34.4% of VM and 3.2% of MD patients. To separate VM from MD, we computed a composite value representing the caloric data, with 83% sensitivity and 71% specificity. Application of machine learning to these metrics plus patient demographics yielded better separation (96% sensitivity and 85% specificity). CONCLUSION Perceptual differences between VM and non-VM patients during caloric stimulation indicate that subjective ratings during caloric testing are meaningful measures. Combining objective and subjective measures could provide optimal separation of VM from MD.
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Affiliation(s)
- I P Hannigan
- Central Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, 2006, Australia
- Blacktown Neurology Clinic, Blacktown, NSW, 2148, Australia
| | - S M Rosengren
- Central Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, 2006, Australia
- Institute of Clinical Neurosciences, Royal Prince Alfred Hospital, Camperdown, 2006, Australia
| | - G K Bharathy
- School of Computer Science, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, 2007, Australia
| | - M Prasad
- School of Computer Science, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, 2007, Australia
| | - M S Welgampola
- Central Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, 2006, Australia
- Institute of Clinical Neurosciences, Royal Prince Alfred Hospital, Camperdown, 2006, Australia
| | - S R D Watson
- Prince of Wales Clinical School, University of New South Wales, Randwick, 2013, Australia.
- Blacktown Neurology Clinic, Blacktown, NSW, 2148, Australia.
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10
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Arshad Q, Moreno-Ajona D, Goadsby PJ, Kheradmand A. What visuospatial perception has taught us about the pathophysiology of vestibular migraine. Curr Opin Neurol 2024; 37:32-39. [PMID: 38018799 PMCID: PMC11090135 DOI: 10.1097/wco.0000000000001232] [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] [Indexed: 11/30/2023]
Abstract
PURPOSE OF REVIEW A decade has passed since vestibular migraine (VM) was formally established as a clinical entity. During this time, VM has emerged amongst the most common cause of episodic vertigo. Like all forms of migraine, VM symptoms are most prominent during individual attacks, however many patients may also develop persistent symptoms that are less prominent and can still interfere with daily activities. RECENT FINDINGS Vestibular inputs are strongly multimodal, and because of extensive convergence with other sensory information, they do not result in a distinct conscious sensation. Here we review experimental evidence that supports VM symptoms are linked to multisensory mechanisms that control body motion and position in space. SUMMARY Multisensory integration is a key concept for understanding migraine. In this context, VM pathophysiology may involve multisensory processes critical for motion perception, spatial orientation, visuospatial attention, and spatial awareness.
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Affiliation(s)
- Qadeer Arshad
- InAmind Laboratory, College of Life Sciences, University of Leicester, Leicester, UK
| | - David Moreno-Ajona
- Department of Neurology, Queen Elizabeth Hospital, London UK
- NIHR King’s Clinical Research Facility, King’s College London, UK
| | - Peter J. Goadsby
- NIHR King’s Clinical Research Facility, King’s College London, UK
- Department of Neurology, University of California, Los Angeles, CA USA
| | - Amir Kheradmand
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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11
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Ceriani CEJ. Vestibular Migraine Pathophysiology and Treatment: a Narrative Review. Curr Pain Headache Rep 2024; 28:47-54. [PMID: 37889468 DOI: 10.1007/s11916-023-01182-7] [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] [Accepted: 10/14/2023] [Indexed: 10/28/2023]
Abstract
PURPOSE OF REVIEW To review the diagnosis of vestibular migraine (VM) and update the clinician on the most recent developments in our understanding of its pathophysiology and treatment. RECENT FINDINGS Functional imaging studies have identified multiple regions of the brain with abnormal activity and connectivity in VM. There is evidence of abnormal sensory processing and integration in VM patients. Calcitonin gene-related peptide (CGRP) has also been found to play a role in trigeminal and vestibular nucleus pathways. Research into treatment modalities has identified several neuromodulation devices that may be effective in VM. There are a growing number of evidence-based preventive options for VM, including medications that target CGRP. VM is best understood as a sensory processing disorder. CGRP appears to play a role, and further research is needed to fully understand its effects. Treatment options are expanding, but there is still a need for more randomly controlled trials in this area.
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Affiliation(s)
- Claire E J Ceriani
- Jefferson Headache Center, Department of Neurology, Thomas Jefferson University, 900 Walnut St., Ste 200, Philadelphia, PA, 19107, USA.
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12
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Tarnutzer AA, Kaski D. What's in a Name? Chronic Vestibular Migraine or Persistent Postural Perceptual Dizziness? Brain Sci 2023; 13:1692. [PMID: 38137140 PMCID: PMC10741489 DOI: 10.3390/brainsci13121692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Current consensus diagnostic criteria for vestibular migraine (VM) describes this as an episodic disorder. However, a minority of patients report prolonged (>72 h duration) or even persistent VM symptoms, prompting whether a chronic variant of vestibular migraine (CVM) should be introduced to the current classification and how best to define it. Here we summarize current evidence of such a potential chronic variant of VM and critically review proposed definitions for CVM. Potential approaches to establish a diagnostic framework for CVM include (a) following the distinction between episodic and chronic migraine headaches, namely, frequent and/or prolonged episodes of VM (but not persistent vertigo or dizziness) in the context of chronic migraine headaches or (b) daily dizzy spells over more than 6 months that responded well to prophylactic anti-migraine therapy. A key challenge when defining diagnostic criteria for CVM is how to distinguish it from other chronic vestibular syndromes such as motion sickness, persistent postural-perceptual dizziness (PPPD), and mal de débarquement syndrome. Indeed, more than 50% of patients with PPPD and up to 46% with mal de débarquement syndrome fulfil diagnostic criteria for episodic migraine headaches, suggesting these disorders may all lie along a spectrum. We propose that when VM becomes persistent, it is best classified as PPPD but that VM and PPPD are not mutually exclusive, such that patients with PPPD need not have features of VM, and the triggering event for persistent dizziness may be independent of migraine. However, further research is needed to better characterize the spectrum of clinical phenotypes in patients with chronic dizziness, migraine headaches and anxiety, to define whether a chronic variant of VM sufficiently differs from current persistent dizziness definitions.
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Affiliation(s)
- Alexander A. Tarnutzer
- Neurology, Cantonal Hospital of Baden, 5404 Baden, Switzerland
- Faculty of Medicine, University of Zurich, 8006 Zurich, Switzerland
| | - Diego Kaski
- SENSE Research Unit, Department of Clinical and Movement Neurosciences, Institute of Neurology, University College London, 33 Queen Square, London WC1N 3BG, UK;
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Grove CR, Klatt BN, Wagner AR, Anson ER. Vestibular perceptual testing from lab to clinic: a review. Front Neurol 2023; 14:1265889. [PMID: 37859653 PMCID: PMC10583719 DOI: 10.3389/fneur.2023.1265889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/18/2023] [Indexed: 10/21/2023] Open
Abstract
Not all dizziness presents as vertigo, suggesting other perceptual symptoms for individuals with vestibular disease. These non-specific perceptual complaints of dizziness have led to a recent resurgence in literature examining vestibular perceptual testing with the aim to enhance clinical diagnostics and therapeutics. Recent evidence supports incorporating rehabilitation methods to retrain vestibular perception. This review describes the current field of vestibular perceptual testing from scientific laboratory techniques that may not be clinic friendly to some low-tech options that may be more clinic friendly. Limitations are highlighted suggesting directions for additional research.
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Affiliation(s)
- Colin R. Grove
- Department of Otolaryngology Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
- Division of Physical Therapy, Department of Physical Medicine and Rehabilitation School of Medicine, Emory University, Atlanta, GA, United States
| | - Brooke N. Klatt
- Physical Therapy Department, University of Pittsburgh, Pittsburgh, PA, United States
| | - Andrew R. Wagner
- Department of Otolaryngology—Head and Neck Surgery, Ohio State University Wexner Medical Center, Columbus, OH, United States
- School of Health and Rehabilitation Sciences, Ohio State University, Columbus, OH, United States
| | - Eric R. Anson
- Department of Otolaryngology, University of Rochester, Rochester, NY, United States
- Physical Therapy Department, University of Rochester, Rochester, NY, United States
- Department of Neuroscience, University of Rochester, Rochester, NY, United States
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Dong L, Fan X, Fan Y, Li X, Li H, Zhou J. Impairments to the multisensory integration brain regions during migraine chronification: correlation with the vestibular dysfunction. Front Mol Neurosci 2023; 16:1153641. [PMID: 37465368 PMCID: PMC10350528 DOI: 10.3389/fnmol.2023.1153641] [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] [Received: 01/29/2023] [Accepted: 06/19/2023] [Indexed: 07/20/2023] Open
Abstract
Objectives Migraine is often combined with vestibular dysfunction, particularly in patients with chronic migraine (CM). However, the pathogenesis of migraine chronification leading to vestibular dysfunction is not fully understood. The current study investigated whether structural or functional impairments to the brain during migraine chronification could be associated with vestibular dysfunction development. Methods The eligible participants underwent clinical assessment and magnetic resonance imaging (MRI) scans. Voxel-based morphometry (VBM) determined structural impairment by evaluating alterations in gray matter volume (GMV). Functional impairment was assessed by the mean amplitude of low-frequency fluctuation (mALFF). Furthermore, the resting-state functional connectivity (rsFC) of regions possessing impairment was examined with a seed-based approach. We also analyzed the correlations between altered neuroimaging features with clinical variables and performed multiple linear regression. Results Eighteen CM patients, 18 episodic migraine (EM) patients, and 18 healthy controls (HCs) were included in this study. A one-way ANOVA indicated the group differences in mALFF. These were located within right supramarginal gyrus (SMG), left angular gyrus (AG), middle frontal gyrus (MFG), left middle occipital gyrus (MOG), right rolandic operculum (Rol) and left superior parietal gyrus (SPG). During rsFC analysis, the CM group had more enhanced rsFC of left SPG with left MOG than the EM and HC groups. The EM group revealed enhanced rsFC of left SPG with left AG than the CM and HC groups. In multiple linear regression, after controlling for age, body mass index (BMI) and disease duration, the rsFC of left SPG with left MOG (β = 48.896, p = 0.021) was found to predict the total Dizziness Handicap Inventory (DHI) score with an explained variance of 25.1%. Moreover, the rsFC of left SPG with left MOG (β = 1.253, p = 0.003) and right SMG (β = -1.571, p = 0.049) were significant predictors of migraine frequency, accounting for a total explained variance of 73.8%. Conclusion The functional impairments due to migraine chronification are primarily concentrated in the multisensory integration-related brain regions. Additionally, the rsFC of SPG with MOG can predict the frequency of migraine and the degree of vestibular dysfunction. Therefore, these neuroimaging features could be potential mechanisms and therapeutic targets for developing vestibular dysfunction in migraine.
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Affiliation(s)
- Liang Dong
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoping Fan
- Department of Hospice, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yulan Fan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ximao Li
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hui Li
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiying Zhou
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Wibble T, Pansell T. Clinical characteristics of visual motion hypersensitivity: a systematic review. Exp Brain Res 2023:10.1007/s00221-023-06652-3. [PMID: 37341755 DOI: 10.1007/s00221-023-06652-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 06/11/2023] [Indexed: 06/22/2023]
Abstract
This qualitative systematic review presents an overview of the state of the research relating to visual motion hypersensitivity (VMH) and offers a reference tool for future studies in the field. The study set out to identify and collate articles investigating risk groups with aberrant responses to visual motion as compared to healthy control groups, presenting evidence for risk factors associated with visual motion hypersensitivity. Data were synthesized into the state of the research and analyzed in the context of the clinical characteristics of each risk factor. Literature searches were performed on Medline Ovid, EMBASE, Web of Science, and Cinahl, identifying a total of 586 studies of which 54 were finally included. Original articles published between the dates of commencement for each database and 19th January 2021 were included. JBI critical appraisal tools were implemented for each corresponding article type. In total, the following number of studies was identified for each respective risk factor: age (n = 6), migraines (n = 8), concussions (n = 8), vestibular disorders (n = 13), psychiatric conditions (n = 5), and Parkinson's disease (n = 5). Several studies described VMH as the primary concern (n = 6), though these primarily included patients with vestibulopathies. There were considerable differences in the nomenclature employed to describe VMH, depending largely on the investigating group. An overview of investigated risk factors and their evaluation methods was presented in a Sankey diagram. Posturography was the most implemented methodology but due to diverse measurements meta-analyses were not possible. One may however note that while the easily implemented Vestibular Ocular Motor Screening (VOMS) was designed for concussed patients, it may prove useful for other risk groups.
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Affiliation(s)
- Tobias Wibble
- Department of Clinical Neuroscience, Division of Ophthalmology and Vision, Marianne Bernadotte Centre, Karolinska Institutet, Stockholm, Sweden.
- St. Erik Eye Hospital, Stockholm, Sweden.
| | - Tony Pansell
- Department of Clinical Neuroscience, Division of Ophthalmology and Vision, Marianne Bernadotte Centre, Karolinska Institutet, Stockholm, Sweden
- St. Erik Eye Hospital, Stockholm, Sweden
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Sharif M, Saman Y, Burling R, Rea O, Patel R, Barrett DJK, Rea P, Kheradmand A, Arshad Q. Altered visual conscious awareness in patients with vestibular dysfunctions; a cross-sectional observation study. J Neurol Sci 2023; 448:120617. [PMID: 36989587 PMCID: PMC10112837 DOI: 10.1016/j.jns.2023.120617] [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: 01/01/2023] [Revised: 03/10/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND Patients with vestibular dysfunctions often experience visual-induced symptoms. Here we asked whether such visual dependence can be related to alterations in visual conscious awareness in these patients. METHODS To measure visual conscious awareness, we used the effect of motion-induced blindness (MIB,) in which the perceptual awareness of the visual stimulus alternates despite its unchanged physical characteristics. In this phenomenon, a salient visual target spontaneously disappears and subsequently reappears from visual perception when presented against a moving visual background. The number of perceptual switches during the experience of the MIB stimulus was measured for 120 s in 15 healthy controls, 15 patients with vestibular migraine, 15 patients with benign positional paroxysmal vertigo (BPPV) and 15 with migraine without vestibular symptoms. RESULTS Patients with vestibular dysfunctions (i.e., both vestibular migraine and BPPV) exhibited increased perceptual fluctuations during MIB compared to healthy controls and migraine patients without vertigo. In VM patients, those with more severe symptoms exhibited higher fluctuations of visual awareness (i.e., positive correlation), whereas, in BPPV patients, those with more severe symptoms had lower fluctuations of visual awareness (i.e., negative correlation). IMPLICATIONS Taken together, these findings show that fluctuations of visual awareness are linked to the severity of visual-induced symptoms in patients with vestibular dysfunctions, and distinct pathophysiological mechanisms may mediate visual vertigo in peripheral versus central vestibular dysfunctions.
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Affiliation(s)
- Mishaal Sharif
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester LE1 7RH, UK
| | - Yougan Saman
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester LE1 7RH, UK; Balance Clinic, E.N.T Department, Leicester Royal Infirmary, Leicester LE1 5WW, UK
| | - Rose Burling
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester LE1 7RH, UK
| | - Oliver Rea
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester LE1 7RH, UK
| | - Rakesh Patel
- Faculty of Health and Life Sciences, De Montfort University, The Gateway, Leicester LE1 9BH, UK
| | - Douglas J K Barrett
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester LE1 7RH, UK
| | - Peter Rea
- Balance Clinic, E.N.T Department, Leicester Royal Infirmary, Leicester LE1 5WW, UK
| | - Amir Kheradmand
- Department of Neurology, The Johns Hopkins University, Baltimore, MD, USA; Department of Neuroscience, The Johns Hopkins University, Baltimore, MD, USA.
| | - Qadeer Arshad
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester LE1 7RH, UK; Neuro-Otology Unit, Division of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, Fulham Palace Road, London W6 8RF, UK.
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Factors influencing clinical outcome in vestibular neuritis - A focussed review and reanalysis of prospective data. J Neurol Sci 2023; 446:120579. [PMID: 36807973 DOI: 10.1016/j.jns.2023.120579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 12/22/2022] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
Following vestibular neuritis (VN), long term prognosis is not dependent on the magnitude of the residual peripheral function as measured with either caloric or the video head-impulse test. Rather, recovery is determined by a combination of visuo-vestibular (visual dependence), psychological (anxiety) and vestibular perceptual factors. Our recent research in healthy individuals has also revealed a strong association between the degree of lateralisation of vestibulo-cortical processing and gating of vestibular signals, anxiety and visual dependence. In the context of several functional brain changes occurring in the interaction between visual, vestibular and emotional cortices, which underpin the aforementioned psycho-physiological features in patients with VN, we re-examined our previously published findings focusing on additional factors impacting long term clinical outcome and function. These included: (i) the role of concomitant neuro-otological dysfunction (i.e. migraine and benign paroxysmal positional vertigo (BPPV)) and (ii) the degree to which brain lateralisation of vestibulo-cortical processing influences gating of vestibular function in the acute stage. We found that migraine and BPPV interfere with symptomatic recovery following VN. That is, dizziness handicap at short-term recovery stage was significantly predicted by migraine (r = 0.523, n = 28, p = .002), BPPV (r = 0.658, n = 31, p < .001) and acute visual dependency (r = 0.504, n = 28, p = .003). Moreover, dizziness handicap in the long-term recovery stage continued to be predicted by migraine (r = 0.640, n = 22, p = .001), BPPV (r = 0.626, n = 24, p = .001) and acute visual dependency (r = 0.667, n = 22, p < .001). Furthermore, surrogate measures of vestibulo-cortical lateralisation were predictive of the amount of cortical suppression exerted over vestibular thresholds. That is, in right-sided VN patients, we observed a positive correlation between visual dependence and acute ipsilesional oculomotor thresholds (R2 0.497; p < .001), but not contralateral thresholds (R2 0.017: p > .05). In left-sided VN patients, we observed a negative correlation between visual dependence and ipsilesional oculomotor thresholds (R2 0.459; p < .001), but not for contralateral thresholds (R2 0.013; p > .05). To surmise, our findings illustrate that in VN, neuro-otological co-morbidities retard recovery, and that measures of the peripheral vestibular system are an aggregate of residual function and cortically mediated gating of vestibular input.
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Altered functional connectivity within and between resting-state networks in patients with vestibular migraine. Neuroradiology 2023; 65:591-598. [PMID: 36520172 DOI: 10.1007/s00234-022-03102-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE Previous functional magnetic resonance imaging studies have substantiated changes in multiple brain regions of functional activity in patients with vestibular migraine. However, few studies have assessed functional connectivity within and between specific brain networks in vestibular migraine. METHODS Our study subjects included 37 patients with vestibular migraine and 35 healthy controls, and the quality of magnetic resonance images of all subjects met the requirements. Independent component analysis was performed to identify resting-state networks, and we investigated changes in functional connectivity patterns within and between brain networks. We also used Pearson correlation analysis to assess the relationship between changes in functional connectivity and the clinical features of patients with vestibular migraine. RESULTS A total of 14 independent components were identified. Compared to healthy controls, patients with vestibular migraine exhibited decreased intra-network functional connectivity in the executive control network and weakened functional connectivity between the anterior default mode network and the ventral attention network, between the anterior default mode network and the salience network, and between the right frontoparietal network and the auditory network. Moreover, the functional connectivity between the salience network and the dorsal attention network was increased. However, the functional connectivity of networks and clinical characteristics of vestibular migraine patients did not demonstrate any significant correlation. CONCLUSION In conclusion, our study suggested that patients with vestibular migraine also have abnormal multisensory integration during the interictal period and that the attention network is involved. Changing within- and between-network functional connectivity may indicate that vestibular cortex areas are in a sensitive state.
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Li X, Liu Y, Lyu Y, Li Y, Jian H, Li X, Fan Z, Wang H, Zhang D. Sensory organization of balance control in children with vestibular migraine and recurrent vertigo of childhood. Front Neurol 2022; 13:970610. [DOI: 10.3389/fneur.2022.970610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 10/25/2022] [Indexed: 11/10/2022] Open
Abstract
BackgroundMigraine plays an important role in some subgroups of children with recurrent vertigo. Moreover, the migraine component varies from definite to possibly absent as defined in this spectrum of three disorders—vestibular migraine of childhood (VMC), probable VMC (pVMC), and recurrent vertigo of childhood (RVC). However, studies on the sensory organization of balance control in these three disorders are rare.ObjectiveTo explore the balance control of children with RVC, VMC, and pVMC, when the three sensory systems are challenged.MethodA retrospective analysis was performed on 125 children with VMC (18 female and 15 male; aged 11.64 ± 2.74), pVMC (10 female and eight male; aged 11.78 ± 2.51), and RVC (32 female and 42 male; aged 11.10 ± 2.60). All children in each subtype were divided into groups of children aged ≤ 12 years old and 13–17 years old. Vestibular examination screening and assessment for postural control using the six conditions of the sensory organization test (SOT) were performed. The three primary outcome measures were: equilibrium score (ES), strategy score (SS), and sensory analysis score of the SOT.ResultsEquilibrium score under six different conditions and composite score increased with age (all P-values < 0.05). The somatosensory and visual scores also improved with growing (P-values < 0.05). However, vestibular scores did not increase significantly with age as the other senses did (P > 0.05). In the children ≤ 12 year-old group, children with VMC had a significantly higher visual preference score than those with pVMC and RVC (P < 0.05). There was an effect of age on the horizontal HIT. Ocular vestibular evoked myogenic potential (oVEMP), cervical vestibular evoked myogenic potential (cVEMP), and unilateral weakness (UW) values showed no significant difference among three diseases.ConclusionCompared with patients at the age of 13–17 years old and with RVC and pVMC (both ≤ 12 years old), children with VMC had a higher degree of reliance on visual signals to maintain their balance and a poorer central integration of peripheral information before reaching 12 years of age. In addition, vision may predominate by weakening vestibular function based on visuo-vestibular interactions. It must be noted that peripheral vestibular examinations could not distinguish the three disease subtypes.
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Frank AJ, Hoppes CW, Dunlap PM, Costa CM, Whitney SL. Categorizing individuals based on the severity of Visual Vertigo Analogue Scale symptoms. J Vestib Res 2022; 32:433-441. [PMID: 35466914 DOI: 10.3233/ves-210131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND The Visual Vertigo Analogue Scale (VVAS) assesses visual vertigo. Instead of the original scoring methods (positive VVAS > 1), we propose categorizing patients as having No (0), Mild (0.1-40), Moderate (40.01-70), or Severe (70.01-100) symptoms. OBJECTIVE Our primary aim was to validate an alternative interpretation of the VVAS by exploring the relationship between categories of visual vertigo symptoms and measures of activity and participation, dizziness handicap, anxiety, and depression. We aimed to describe the severity of visual vertigo reported by patients in different vestibular diagnostic categories. METHODS Participants with vestibular disorders (n = 250) completed the VVAS, Vestibular Activities and Participation (VAP) Measure, Dizziness Handicap Inventory (DHI), and the Hospital Anxiety and Depression Scale (HADS). RESULTS Patients with central disorders were more symptomatic than those with peripheral vestibular disorders. As evaluated by one-way ANOVA, the scores on the VAP, HADS, and DHI significantly differed among mild, moderate, severe, and no visual vertigo categories (p < 0.001). As VVAS severity increased, activity and participation decreased (r = 0.582, p < 0.001); dizziness handicap increased (r = 0.597, p < 0.001, n = 199); anxiety increased (r = 0.405, p < 0.001); and depression increased (r = 0.521, p < 0.001). CONCLUSIONS The findings of this study support the use of an alternative VVAS interpretation method of categorizing symptoms as none, mild, moderate, and severe visual vertigo.
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Affiliation(s)
- Amanda J Frank
- Hearing Center of Excellence, San Antonio, TX, USA.,zCore Business Solutions, Inc., Round Rock, TX, USA
| | - Carrie W Hoppes
- Army-Baylor University Doctoral Program in Physical Therapy, Fort Sam Houston, TX, USA
| | - Pamela M Dunlap
- Department of Physical Therapy, University of Pittsburgh, Pittsburgh, PA, USA
| | - Cláudia M Costa
- Ph.D. Program in Neuroscience, Faculty of Medicine, University of Lisbon, Lisbon, Portugal
| | - Susan L Whitney
- Department of Physical Therapy, University of Pittsburgh, Pittsburgh, PA, USA
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21
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Amorim AM, Simões J, Gonçalves J, Ferreira M, Ribeiro JC. The Portuguese version of the visual vertigo analog scale. Braz J Otorhinolaryngol 2022; 88 Suppl 3:S125-S129. [DOI: 10.1016/j.bjorl.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 08/02/2022] [Accepted: 09/23/2022] [Indexed: 11/28/2022] Open
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Patel P, Castro P, Koohi N, Arshad Q, Gargallo L, Carmona S, Kaski D. Head shaking does not alter vestibulo ocular reflex gain in vestibular migraine. Front Neurol 2022; 13:967521. [PMID: 36247796 PMCID: PMC9561915 DOI: 10.3389/fneur.2022.967521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/08/2022] [Indexed: 12/03/2022] Open
Abstract
Vestibular Migraine (VM) is the most common cause of non-positional episodic vestibular symptoms. Patients with VM commonly report increased motion sensitivity, suggesting that vestibular responses to head movement may identify changes specific to VM patients. Here we explore whether the vestibulo-ocular reflex (VOR) gain alters in response to a clinical “headshake” maneuver in patients with VM. Thirty patients with VM in the inter-ictal phase, 16 patients with Benign Positional Paroxysmal Vertigo (BPPV) and 15 healthy controls were recruited. Patients responded to the question “Do you feel sick reading in the passenger seat of a car?” and completed a validated motion sickness questionnaire as a measure of motion sensitivity. Lateral canal vHIT testing was performed before and after headshaking; the change in VOR gain was calculated as the primary outcome. Baseline VOR gain was within normal limits across all participants. There was no significant change in VOR gain after headshaking in any group (p = 0.264). Patients were 4.3 times more likely to be in the VM group than in the BPPV group if they reported nausea when reading in the passenger seat of a car. We postulate that a headshake stimulus may be insufficient to disrupt cortical interactions and induce a change in VOR gain. Alternatively, changes in VOR gain may only be apparent in the acute phase of VM. Reading in the passenger seat of a car was considered uncomfortable in all VM patients suggesting that this specific question may be useful for the diagnosis of VM.
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Affiliation(s)
- Priyani Patel
- Adult Diagnostic Audiology Department, University College London Hospitals, London, United Kingdom
- The Ear Institute, Faculty of Brain Sciences, University College London, London, United Kingdom
| | - Patricia Castro
- Adult Diagnostic Audiology Department, University College London Hospitals, London, United Kingdom
- Department of Brain Sciences, Imperial College London, London, United Kingdom
- Universidad del Desarrollo, Escuela de Fonoaudiologia, Facultad de Medicina Clinica Alemana, Santiago, Chile
| | - Nehzat Koohi
- The Ear Institute, Faculty of Brain Sciences, University College London, London, United Kingdom
- Department of Clinical and Movement Neurosciences, Centre for Vestibular and Behavioural Neuroscience, Institute of Neurology, University College London, London, United Kingdom
| | - Qadeer Arshad
- Department of Clinical and Movement Neurosciences, Centre for Vestibular and Behavioural Neuroscience, Institute of Neurology, University College London, London, United Kingdom
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom
| | - Lucia Gargallo
- Fundación San Lucas para la Neurociencia, Rosario, Argentina
- Cátedra Neurofisiología de la Universidad Nacional de Rosario, Rosario, Argentina
| | - Sergio Carmona
- Fundación San Lucas para la Neurociencia, Rosario, Argentina
- Cátedra Neurofisiología de la Universidad Nacional de Rosario, Rosario, Argentina
| | - Diego Kaski
- The Ear Institute, Faculty of Brain Sciences, University College London, London, United Kingdom
- Department of Clinical and Movement Neurosciences, Centre for Vestibular and Behavioural Neuroscience, Institute of Neurology, University College London, London, United Kingdom
- *Correspondence: Diego Kaski
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Meng D, Zhou X, Hu T, Zheng J, Jin T, Gao H, Hu J. Study of clinical correlation of motion sickness in patients with vestibular migraine. Front Neurosci 2022; 16:986860. [PMID: 36203809 PMCID: PMC9531909 DOI: 10.3389/fnins.2022.986860] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/31/2022] [Indexed: 11/13/2022] Open
Abstract
Objective In this study, clinical data from vestibular migraine (VM) patients and healthy control populations were collected to analyze the clinical data of VM patients, especially the history of motion sickness, and to understand their clinical characteristics. Methods According to VM diagnostic criteria, 140 patients diagnosed with confirmed VM (cVM) and probable VM (pVM) who attended the outpatient and inpatient ward of Jiaxing First Hospital between August 2017 and June 2021, as well as 287 healthy check-ups in the health management center, were analyzed and compared in terms of age, gender, and previous history of motion sickness. Results A comparison of clinical data related to VM patients and the control population showed that there were more women in the VM group (P < 0.01) and that patients in the VM group were older (P < 0.05) and had a higher prevalence of history of motion sickness history (P < 0.01). Analysis after matching gender and age revealed that patients in the cVM group were older than those in the pVM group (P < 0.05), but the proportion of motion sickness was lower than in the pVM group (P < 0.05). The age of the patients in the cVM group was mainly distributed around 50 years of age, following a normal distribution, whereas the age distribution of the patients in the pVM group did not have a significant trend of age concentration and was distributed at all ages. Conclusion The history of motion sickness is significant in patients with VM and may be a potential suggestive factor for the diagnosis of VM.
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Affiliation(s)
- Danyang Meng
- Department of Neurology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Xuyou Zhou
- Department of Neurology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Tianye Hu
- Department of Traditional Chinese Medicine and Acupuncture, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Jialian Zheng
- Department of Physical Examination Center, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Tingyu Jin
- Department of Neurology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Han Gao
- Department of Neurology, Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Jin Hu
- Department of Neurology, Affiliated Hospital of Jiaxing University, Jiaxing, China
- *Correspondence: Jin Hu,
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24
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Atilla MH, Kesici GG. Dynamic visual acuity test findings of migraine patients: Observational case-control study. Am J Otolaryngol 2022; 43:103559. [DOI: 10.1016/j.amjoto.2022.103559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 07/15/2022] [Accepted: 07/31/2022] [Indexed: 11/26/2022]
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25
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Environment and body-brain interplay affect inhibition and decision-making. Sci Rep 2022; 12:4303. [PMID: 35277591 PMCID: PMC8917140 DOI: 10.1038/s41598-022-08280-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 02/28/2022] [Indexed: 11/15/2022] Open
Abstract
The fine-tuned interplay of brain and body underlies human ability to cope with changes in the internal and external milieus. Previous research showed that cardiac interoceptive changes (e.g., cardiac phase) affect cognitive functions, notably inhibition that is a key element for adaptive behaviour. Here we investigated the influence on cognition of vestibular signal, which provides the brain with sensory information about body position and movement. We used a centrifuge-based design to disrupt vestibular signal in healthy human volunteers while their inhibition and decision-making functions were assessed with the stop-signal paradigm. Participants performed the standard and a novel, sensorial version of the stop-signal task to determine whether disrupted vestibular signal influences cognition as a function of its relevance to the context. First, we showed that disrupted vestibular signal was associated with a larger variability of longest inhibition latencies, meaning that participants were even slower to inhibit in the trials where they had the most difficulty inhibiting. Second, we revealed that processing of bodily information, as required in the sensorial stop-signal task, also led to a larger variability of longest inhibition latencies, which was all the more important when vestibular signal was disrupted. Lastly, we found that such a degraded response inhibition performance was due in part to the acceleration of decision-making process, meaning that participants made a decision more quickly even when strength of sensory evidence was reduced. Taken together, these novel findings provide direct evidence that vestibular signal affects the cognitive functions of inhibition and decision-making.
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26
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Li J, Luo H, Wang X, Liu L, Feng Z, Tian H, Li Z, Xie Y, Wang S. Exploring the active ingredients and mechanism of qianglidingxuan tablets for vertigo based on network pharmacology and molecular docking. INFORMATICS IN MEDICINE UNLOCKED 2022. [DOI: 10.1016/j.imu.2022.100877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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27
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Mallampalli MP, Rizk HG, Kheradmand A, Beh SC, Abouzari M, Bassett AM, Buskirk J, Ceriani CEJ, Crowson MG, Djalilian H, Goebel JA, Kuhn JJ, Luebke AE, Mandalà M, Nowaczewska M, Spare N, Teggi R, Versino M, Yuan H, Zaleski-King A, Teixido M, Godley F. Care Gaps and Recommendations in Vestibular Migraine: An Expert Panel Summit. Front Neurol 2022; 12:812678. [PMID: 35046886 PMCID: PMC8762211 DOI: 10.3389/fneur.2021.812678] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 11/29/2021] [Indexed: 12/03/2022] Open
Abstract
Vestibular migraine (VM) is an increasingly recognized pathology yet remains as an underdiagnosed cause of vestibular disorders. While current diagnostic criteria are codified in the 2012 Barany Society document and included in the third edition of the international classification of headache disorders, the pathophysiology of this disorder is still elusive. The Association for Migraine Disorders hosted a multidisciplinary, international expert workshop in October 2020 and identified seven current care gaps that the scientific community needs to resolve, including a better understanding of the range of symptoms and phenotypes of VM, the lack of a diagnostic marker, a better understanding of pathophysiologic mechanisms, as well as the lack of clear recommendations for interventions (nonpharmacologic and pharmacologic) and finally, the need for specific outcome measures that will guide clinicians as well as research into the efficacy of interventions. The expert group issued several recommendations to address those areas including establishing a global VM registry, creating an improved diagnostic algorithm using available vestibular tests as well as others that are in development, conducting appropriate trials of high quality to validate current clinically available treatment and fostering collaborative efforts to elucidate the pathophysiologic mechanisms underlying VM, specifically the role of the trigemino-vascular pathways.
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Affiliation(s)
- Monica P Mallampalli
- Department of Research, Association of Migraine Disorders, North Kingstown, RI, United States
| | - Habib G Rizk
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC, United States
| | - Amir Kheradmand
- Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Shin C Beh
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Mehdi Abouzari
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, Irvine, CA, United States
| | - Alaina M Bassett
- Department of Otolaryngology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - James Buskirk
- Department of Otolaryngology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Claire E J Ceriani
- Jefferson Headache Center, Thomas Jefferson University, Philadelphia, PA, United States
| | - Matthew G Crowson
- Department of Otolaryngology-Head and Neck Surgery, Mass Eye & Ear and Harvard Medical School, Boston, MA, United States
| | - Hamid Djalilian
- Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, Irvine, CA, United States
| | - Joel A Goebel
- Department of Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, Saint Louis, MO, United States
| | - Jeffery J Kuhn
- Department of Research, Bayview Physicians Group, Chesapeake, VA, United States
| | - Anne E Luebke
- Biomedical Engineering and Neuroscience, University of Rochester Medical Center, Rochester, NY, United States
| | - Marco Mandalà
- Otolaryngology Unit, University of Siena, Siena, Italy
| | - Magdalena Nowaczewska
- Department of Otolaryngology, Head and Neck Surgery, Laryngological Oncology, Nicolaus Copernicus University, Torun, Poland
| | - Nicole Spare
- Jefferson Headache Center, Thomas Jefferson University, Philadelphia, PA, United States
| | - Roberto Teggi
- Department of Otolaryngology, San Raffaele Scientific Hospital, Milan, Italy
| | - Maurizio Versino
- Neurology and Stroke Unit, ASST Sette Laghi, Circolo Hospital, Varese, Italy
| | - Hsiangkuo Yuan
- Jefferson Headache Center, Thomas Jefferson University, Philadelphia, PA, United States
| | - Ashley Zaleski-King
- Department of Speech-Language Pathology & Audiology, Towson University, Towson, MD, United States
| | - Michael Teixido
- Department of Research, Association of Migraine Disorders, North Kingstown, RI, United States
| | - Frederick Godley
- Department of Research, Association of Migraine Disorders, North Kingstown, RI, United States
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28
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Waterston J, Chen L, Mahony K, Gencarelli J, Stuart G. Persistent Postural-Perceptual Dizziness: Precipitating Conditions, Co-morbidities and Treatment With Cognitive Behavioral Therapy. Front Neurol 2022; 12:795516. [PMID: 35027907 PMCID: PMC8749949 DOI: 10.3389/fneur.2021.795516] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/01/2021] [Indexed: 11/13/2022] Open
Abstract
Persistent postural perceptual dizziness (PPPD) is a common chronic vestibular disorder characterized by persistent vestibular symptoms, including postural instability and non-spinning vertigo, which is aggravated by motion, upright posture and moving or complex visual stimuli. In our review of 198 cases seen over a 5 year period, we have confirmed a number of common precipitating conditions for PPPD, including anxiety disorders and vestibular migraine. Vestibular abnormalities, including a unilateral loss of vestibular hypofunction and isolated otolith abnormalities, were found on investigation in just under half the cases. The use of cognitive behavioral therapy (CBT) as a treatment for PPPD resulted in impressive reductions in anxiety and measures of dizziness over follow up periods of up to 6 months.
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Affiliation(s)
- John Waterston
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Oto-Neurology Department, Alfred Hospital, Melbourne, VIC, Australia
| | - Luke Chen
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, VIC, Australia.,Oto-Neurology Department, Alfred Hospital, Melbourne, VIC, Australia
| | - Kate Mahony
- Private Practice, Lyttleton Street Medical Clinic, Castlemaine, VIC, Australia
| | - Jamila Gencarelli
- Oto-Neurology Department, Alfred Hospital, Melbourne, VIC, Australia
| | - Geoff Stuart
- Department of Cognitive Science, Macquarie University, Sydney, NSW, Australia.,School of Psychological Sciences, University of Melbourne, Parkville, VIC, Australia
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29
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Bonsu AN, Britton Z, Asif Z, Sharif M, Kaski D, Kheradmand A, Bronstein AM, Arshad Q. Migraine phenotype differentially modulates the attentional network: A cross sectional observation study. CEPHALALGIA REPORTS 2022. [DOI: 10.1177/25158163221124264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: Signs of distinct brain dysfunction in patients where migraine intersects with vertigo (i.e. vestibular migraine (VM)), remain elusive. As migraine and vertigo can both independently modulate attentional processes, here we seek the utility of the attentional network to functionally differentiate patients. Methods: We used the Attentional Network Task (ANT) to elucidate three separate functional networks: Alerting, orienting and resolving conflict. 120 participants had to attend to the direction of a target visual stimulus, while other parameters were simultaneously manipulated. Reaction times across the networks were assessed in, (i) 30 healthy controls, (ii) 30 VM patients, (iii) 30 patients with migraine without vertigo, and (iv) 30 patients with benign paroxysmal positional vertigo (BPPV) but no migraine. Results: Patients with VM (mean = 737.1 ms, SEM = 28), migraine (mean = 735.3 ms, SEM = 36.4), and BPPV (mean = 720.3 ms SEM = 24.3) all exhibited significantly delayed ANT reaction times compared to healthy controls (mean = 661.3 ms, SEM = 23.4). Specific attentional network deficits were observed for resolving conflict in VM, alerting in migraine and orienting in BPPV. Conclusion: VM patients displayed deficits in executive function characterized by an inability to focus attentional resources and suppress peripheral distractors, whereas migraineurs without vertigo exhibited changes in the alerting network that reflects hypervigilance.
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Affiliation(s)
- Angela N Bonsu
- Neuro-Otology Unit, Department of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, London, UK
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, UK
| | - Zelie Britton
- Neuro-Otology Unit, Department of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, London, UK
| | - Zara Asif
- Neuro-Otology Unit, Department of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, London, UK
| | - Mishaal Sharif
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, UK
| | - Diego Kaski
- Neuro-Otology Unit, Department of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, London, UK
- Department of Clinical and Motor Neurosciences, Institute of Neurology, UCL, UK
| | - Amir Kheradmand
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Otolaryngology and Head & Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Adolfo M Bronstein
- Neuro-Otology Unit, Department of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, London, UK
| | - Qadeer Arshad
- Neuro-Otology Unit, Department of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, London, UK
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, UK
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30
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Visually Evoked Postural Responses (VEPRs) in Children with Vestibular Migraine. CHILDREN (BASEL, SWITZERLAND) 2021; 9:children9010014. [PMID: 35053639 PMCID: PMC8774045 DOI: 10.3390/children9010014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/21/2021] [Accepted: 12/23/2021] [Indexed: 01/03/2023]
Abstract
Vestibular migraine (VM) is the most common cause of episodic vertigo in children. Vertigo, nausea, dizziness and unsteadiness are often complained of by children with migraine, which can precede, follow or be present simultaneously with headache. The aim of this study was to use posturography to investigate the visually evoked postural responses (VEPRs) of children with VM and compare them to data obtained from children with primary headache (M) and controls (C). Twenty children diagnosed as affected by VM, nineteen children with M without aura and twenty healthy subjects were recruited in this cross-sectional study. Posturography was performed by a standardized stabilometric force-platform (Svep-Politecnica) in the following conditions: open eyes (OE), closed eyes (CE) and during full-field horizontal optokinetic stimulation (OKN-S). Electronystagmography was performed simultaneously to analyze optokinetic reflex parameters. In the OE condition, no difference was found between groups with respect to body sway area. In contrast, this parameter increased in the two pathological groups with respect to controls in the CE condition. The optokinetic stimulations also induced a similar increase of body sway area in the M group relative to controls, but a further increase was elicited in the VM group. Electronystagmographic recording also revealed different optokinetic reflex parameters in the latter groups. This study disclosed an abnormal sensitivity of children with M and VM to full-field moving scenes and a consequent destabilization of posture, as documented by the abnormal VEPRs. Children with VM were particularly exposed to this risk. Possible clinical implications of these findings are discussed.
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31
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Wurthmann S, Holle D, Obermann M, Roesner M, Nsaka M, Scheffler A, Kleinschnitz C, Naegel S. Reduced vestibular perception thresholds in persistent postural-perceptual dizziness- a cross-sectional study. BMC Neurol 2021; 21:394. [PMID: 34641808 PMCID: PMC8507224 DOI: 10.1186/s12883-021-02417-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 09/20/2021] [Indexed: 01/17/2023] Open
Abstract
Background Persistent postural-perceptual dizziness (PPPD) is the most common functional vestibular disorder. A multisensory mismatch altered by psychological influences is considered to be an important pathophysiological mechanism. Increased cortical and subcortical excitability may play a role in the pathophysiology of PPPD. We hypothesized that decreased motion perception thresholds reflect one mechanism of the abnormal vestibular responsiveness in this disorder. We investigated the vestibular perception thresholds and the vestibular ocular reflex with a rotatory chair experiment to gain insights in the processing and adaption to vestibular provocation. Methods In this cross-sectional study 26 female PPPD patients and 33 healthy female age matched controls (HC) were investigated sitting in a motorized rotary chair shielded regarding visual and acoustic stimuli. The chair was rotated for 20 minutes with slowly increasing velocity to a maximum of 72°/s. We functionally tested motion perception thresholds and vegetative responses to rotation as well as vestibular-ocular reflex thresholds. We additionally investigated several psychological comorbidities (i.e. depression, anxiety, somatosensory amplification) using validated scores. Conventional dizziness scores were obtained to quantify the experienced dizziness and impact on daily life. Results PPPD patients showed a significant reduced vestibulo-perceptual threshold (PPPD: 10.9°/s vs. HC: 29.5°/s; p<0.001) with increased motion sensitivity and concomitant vegetative response during and after the chair rotation compared to healthy controls. The extent of increased vestibular sensitivity was in correlation with the duration of the disease (p=0.043). No significant difference was measured regarding nystagmus parameters between both groups. Conclusion PPPD patients showed increased vegetative response as well as decreased vestibulo-perceptual thresholds which are related to disease duration. This is of interest as PPPD might be sustained by increased vestibular excitability leading to motion intolerance and induction of dizziness when exposed to movement. Supplementary Information The online version contains supplementary material available at 10.1186/s12883-021-02417-z.
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Affiliation(s)
- Sebastian Wurthmann
- Department of Neurology and Dizziness and Vertigo Center Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany. .,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany.
| | - Dagny Holle
- Department of Neurology and Dizziness and Vertigo Center Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Mark Obermann
- Department of Neurology, Weser-Egge Hospital Höxter, University of Duisburg-Essen, Höxter, Germany
| | - Miriam Roesner
- Department of Neurology and Dizziness and Vertigo Center Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Michael Nsaka
- Department of Neurology and Dizziness and Vertigo Center Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Armin Scheffler
- Department of Neurology and Dizziness and Vertigo Center Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Christoph Kleinschnitz
- Department of Neurology and Dizziness and Vertigo Center Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Steffen Naegel
- Department of Neurology and Dizziness and Vertigo Center Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany.,Department of Neurology, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
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32
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Chronic Central Vestibulopathies for the Otolaryngologist. Otolaryngol Clin North Am 2021; 54:939-948. [PMID: 34538359 DOI: 10.1016/j.otc.2021.06.004] [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: 11/22/2022]
Abstract
Central vestibulopathies involve disorders of the central nervous system that lead to problems with balance, often manifested as dizziness, vertigo, and gait difficulty. Central vestibulopathies can be distinguished from peripheral vestibulopathies with the use of certain tests, including nystagmography and posturography. The neuroanatomy of individuals with central vestibulopathies can reveal structural abnormalities in the posterior cerebrum or cerebellum. Various medications can be used to manage central vestibulopathies, including vestibular migraine.
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The Role of the Functional Head Impulse Test with and without Optokinetic Stimuli in Vestibular Migraine and Acute Unilateral Vestibulopathy: Discovering a Dynamic Visual Dependence. J Clin Med 2021; 10:jcm10173787. [PMID: 34501235 PMCID: PMC8432176 DOI: 10.3390/jcm10173787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 11/29/2022] Open
Abstract
(1) Background: Visually induced vertigo (i.e., vertigo provoked by moving visual scenes) can be considered a noticeable feature of vestibular migraines (VM) and can be present in patients suffering from acute unilateral vestibulopathy (AUV). Hypersensitivity to moving or conflicting visual stimulation is named visual dependence. (2) Methods: Visuo-vestibular interactions were analyzed via the functional Head Impulse Test (fHIT) with and without optokinetic stimulation (o-fHIT) in 25 patients with VM, in 20 subjects affected by AUV, and in 20 healthy subjects. We calculated the percentage of correct answers (%CA) without and with the addition of the optokinetic background (OB). (3) In VM groups, the %CA on the fHIT was 92.07% without OB and 73.66% with OB. A significant difference was found between %CA on the deficit side and that on the normal side in AUV, both without OB and with OB. (4) Conclusions: The fHIT results in terms of %CA with and without OB could be useful to identify the presence of a dynamic visual dependence, especially in patients suffering from VM. The difference in %CA with and without OB could provide instrumental support to help correctly identify subjects suffering from VM. We propose the use of the fHIT in clinical practice whenever there is a need to highlight a condition of dynamic visual dependence.
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34
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Wurthmann S, Naegel S, Nsaka M, Scheffler A, Kleinschnitz C, Holle D, Obermann M. Response to the Letter to the Editor by Arshad and Bronstein "Motion perception in vestibular migraine". Eur J Neurol 2021; 28:e95-e96. [PMID: 34379826 DOI: 10.1111/ene.15059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/07/2021] [Indexed: 10/20/2022]
Affiliation(s)
- Sebastian Wurthmann
- Department of Neurology, Dizziness and Vertigo Center Essen, West-German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Steffen Naegel
- Department of Neurology, Dizziness and Vertigo Center Essen, West-German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Department of Neurology, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
| | - Michael Nsaka
- Department of Neurology, Dizziness and Vertigo Center Essen, West-German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Armin Scheffler
- Department of Neurology, Dizziness and Vertigo Center Essen, West-German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Christoph Kleinschnitz
- Department of Neurology, Dizziness and Vertigo Center Essen, West-German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Dagny Holle
- Department of Neurology, Dizziness and Vertigo Center Essen, West-German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Mark Obermann
- Department of Neurology, Weser-Egge Hospital Höxter, and University of Duisburg-Essen, Essen, Germany
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35
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Arshad Q, Bronstein A. Motion perception in vestibular migraine. Eur J Neurol 2021; 28:e93-e94. [PMID: 34293824 DOI: 10.1111/ene.15032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/19/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Qadeer Arshad
- InAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, UK.,Neuro-otology Unit, Department of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, London, UK
| | - Adolfo Bronstein
- InAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, UK.,Neuro-otology Unit, Department of Brain Sciences, Charing Cross Hospital Campus, Imperial College London, London, UK
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36
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Diaz-Artiles A, Karmali F. Vestibular Precision at the Level of Perception, Eye Movements, Posture, and Neurons. Neuroscience 2021; 468:282-320. [PMID: 34087393 DOI: 10.1016/j.neuroscience.2021.05.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 11/18/2022]
Abstract
Precision and accuracy are two fundamental properties of any system, including the nervous system. Reduced precision (i.e., imprecision) results from the presence of neural noise at each level of sensory, motor, and perceptual processing. This review has three objectives: (1) to show the importance of studying vestibular precision, and specifically that studying accuracy without studying precision ignores fundamental aspects of the vestibular system; (2) to synthesize key hypotheses about precision in vestibular perception, the vestibulo-ocular reflex, posture, and neurons; and (3) to show that groups of studies that are thoughts to be distinct (e.g., perceptual thresholds, subjective visual vertical variability, neuronal variability) are actually "two sides of the same coin" - because the methods used allow results to be related to the standard deviation of a Gaussian distribution describing the underlying neural noise. Vestibular precision varies with age, stimulus amplitude, stimulus frequency, body orientation, motion direction, pathology, medication, and electrical/mechanical vestibular stimulation, but does not vary with sex. The brain optimizes precision during integration of vestibular cues with visual, auditory, and/or somatosensory cues. Since a common concern with precision metrics is time required for testing, we describe approaches to optimize data collection and provide evidence that fatigue and session effects are minimal. Finally, we summarize how precision is an individual trait that is correlated with clinical outcomes in patients as well as with performance in functional tasks like balance. These findings highlight the importance of studying vestibular precision and accuracy, and that knowledge gaps remain.
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Affiliation(s)
- Ana Diaz-Artiles
- Bioastronautics and Human Performance Laboratory, Department of Aerospace Engineering, Department of Health and Kinesiology, Texas A&M University, College Station, TX 77843-3141, USA. https://bhp.engr.tamu.edu
| | - Faisal Karmali
- Jenks Vestibular Physiology Laboratory, Massachusetts Eye and Ear Infirmary, Boston, MA, USA; Department of Otolaryngology - Head and Neck Surgery, Harvard Medical School, Boston MA, USA.
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37
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Tang B, Yu X, Jiang W, Zhang C, Zhan T, He Y. Clinical significance of serum sex hormones in postmenopausal women with vestibular migraine: potential role of estradiol. J Int Med Res 2021; 49:3000605211016379. [PMID: 34024170 PMCID: PMC8142534 DOI: 10.1177/03000605211016379] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the role of sex hormones in postmenopausal women with vestibular migraine. METHODS This observational study included 242 female patients with vestibular migraine who were postmenopausal during April 2017 to December 2019. Serum levels of sex hormones, including estradiol, progesterone, testosterone, follicle-stimulating hormone, luteinizing hormone, and prolactin, were determined by radioimmunoassay. The duration and frequency (every month) of onset of vestibular migraine were recorded. The degree of vestibular migraine was measured by the visual analogue scale. RESULTS Serum levels of estradiol, progesterone, and testosterone were significantly lower, while serum prolactin levels were significantly higher in postmenopausal patients with vestibular migraine compared with healthy controls. Serum estradiol levels were negatively correlated with the duration, frequency, and severity of onset of vestibular migraine. Patients with higher serum estradiol levels showed a longer disease-free survival time. CONCLUSION Sex hormones are correlated with vestibular migraine in postmenopausal women. Additionally, estradiol levels are correlated with the duration, frequency, and severity of onset of vestibular migraine, as well as the disease-free survival time.
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Affiliation(s)
- Bo Tang
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, PR China
| | - Xiaojun Yu
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, PR China
| | - Wei Jiang
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, PR China
| | - Chuang Zhang
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, PR China
| | - Tao Zhan
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, PR China
| | - Yuqin He
- Department of Neurology, The First Hospital of Changsha, Changsha, Hunan, PR China
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Wurthmann S, Naegel S, Roesner M, Nsaka M, Scheffler A, Kleinschnitz C, Holle D, Obermann M. Sensitized rotatory motion perception and increased susceptibility to motion sickness in vestibular migraine: A cross-sectional study. Eur J Neurol 2021; 28:2357-2366. [PMID: 33914990 DOI: 10.1111/ene.14889] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 01/24/2023]
Abstract
BACKGROUND AND PURPOSE Vestibular migraine (VM) patients are ictally and interictally hypersensitive for self-motion and visual perception. Increased cortical excitability of the vestibular system represented by lowered motion perception thresholds might play an important role in the pathophysiology of VM. We aimed to compare motion perception thresholds and the vegetative response to rotatory motion, as well as the vestibulo-ocular reflex (VOR) during rotation in VM patients compared to healthy controls (HC). METHODS In this cross-sectional study, 28 female VM patients in the interictal state and 33 age- and gender-matched HC were investigated sitting in a motorized rotary chair shielded regarding visual and acoustic stimuli for 20 min with slowly increasing velocity (maximum = 72°/s). The motion perception threshold was indicated by the participants by pushing a button. During and after rotation, participants rated the presence and extent of motion sickness using a sickness rating scale. RESULTS We detected lower motion perception thresholds (7.54°/s vs. 23.49°/s; p < 0.001) in VM patients compared to HC but no difference at the basic VOR thresholds. Furthermore, the patients showed enhanced susceptibility to motion sickness during and after the rotation. CONCLUSIONS We provide evidence for decreased motion perception thresholds and pronounced susceptibility to motion sickness in VM patients in the interictal state, which could indicate alterations in higher levels of vestibular processing. Future studies should determine whether this could be the pathophysiological hallmark of VM either as a unique disease entity or in differentiation from other forms of migraine.
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Affiliation(s)
- Sebastian Wurthmann
- Department of Neurology, Dizziness and Vertigo Center Essen, West German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Steffen Naegel
- Department of Neurology, Dizziness and Vertigo Center Essen, West German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Department of Neurology, Martin Luther University Halle-Wittenberg, Halle/Saale, Germany
| | - Miriam Roesner
- Department of Neurology, Dizziness and Vertigo Center Essen, West German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Michael Nsaka
- Department of Neurology, Dizziness and Vertigo Center Essen, West German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Armin Scheffler
- Department of Neurology, Dizziness and Vertigo Center Essen, West German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Christoph Kleinschnitz
- Department of Neurology, Dizziness and Vertigo Center Essen, West German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Dagny Holle
- Department of Neurology, Dizziness and Vertigo Center Essen, West German Headache Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.,Center for Translational Neuro- and Behavioral Sciences, University of Duisburg-Essen, Essen, Germany
| | - Mark Obermann
- Department of Neurology, Weser-Egge Hospital Höxter, University of Duisburg-Essen, Essen, Germany
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Vestibular migraine: the chameleon in vestibular disease. Neurol Sci 2021; 42:1719-1731. [PMID: 33666767 DOI: 10.1007/s10072-021-05133-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 02/20/2021] [Indexed: 12/19/2022]
Abstract
Vestibular migraine (VM) has been recently receiving increasing attention as an independent disease concept. It is a common cause of dizziness or headache; however, it was not clearly defined until 2018. Its diagnosis mainly relies on clinical history, including vertigo and migraine, as indicated by the appendix of the 3rd edition of the International Classification Diagnostic Criteria for Headache Diseases. There is often an overlap of vertigo and migraine across vestibular diseases; therefore, VM often imitates various vestibular diseases. Additionally, VM lacks specific laboratory biomarkers; therefore, it has high misdiagnosis and missed diagnosis rates. Therefore, numerous clinical patients could have inaccurate diagnoses and improper treatment. Therefore, there is a need for further basic research to further clarify the pathogenesis. Moreover, there is a need for clinical trials focusing on specific laboratory biomarkers, including serological, radiological, and electrophysiological examinations, to develop more detailed and complete diagnostic criteria.
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40
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Kobel MJ, Wagner AR, Merfeld DM, Mattingly JK. Vestibular Thresholds: A Review of Advances and Challenges in Clinical Applications. Front Neurol 2021; 12:643634. [PMID: 33679594 PMCID: PMC7933227 DOI: 10.3389/fneur.2021.643634] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 02/01/2021] [Indexed: 12/15/2022] Open
Abstract
Vestibular disorders pose a substantial burden on the healthcare system due to a high prevalence and the severity of symptoms. Currently, a large portion of patients experiencing vestibular symptoms receive an ambiguous diagnosis or one that is based solely on history, unconfirmed by any objective measures. As patients primarily experience perceptual symptoms (e.g., dizziness), recent studies have investigated the use of vestibular perceptual thresholds, a quantitative measure of vestibular perception, in clinical populations. This review provides an overview of vestibular perceptual thresholds and the current literature assessing use in clinical populations as a potential diagnostic tool. Patients with peripheral and central vestibular pathologies, including bilateral vestibulopathy and vestibular migraine, show characteristic changes in vestibular thresholds. Vestibular perceptual thresholds have also been found to detect subtle, sub-clinical declines in vestibular function in asymptomatic older adults, suggesting a potential use of vestibular thresholds to augment or complement existing diagnostic methods in multiple populations. Vestibular thresholds are a reliable, sensitive, and specific assay of vestibular precision, however, continued research is needed to better understand the possible applications and limitations, especially with regard to the diagnosis of vestibular disorders.
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Affiliation(s)
- Megan J Kobel
- Department of Otolaryngology - Head and Neck Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States.,Department of Speech and Hearing Science, The Ohio State University, Columbus, OH, United States
| | - Andrew R Wagner
- Department of Otolaryngology - Head and Neck Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States.,Department of Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, United States
| | - Daniel M Merfeld
- Department of Otolaryngology - Head and Neck Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Jameson K Mattingly
- Department of Otolaryngology - Head and Neck Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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41
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Keywan A, Dietrich H, Wuehr M. Subliminal Passive Motion Stimulation Improves Vestibular Perception. Neuroscience 2020; 441:1-7. [DOI: 10.1016/j.neuroscience.2020.05.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/02/2020] [Accepted: 05/28/2020] [Indexed: 12/30/2022]
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42
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Bednarczuk NF, Bradshaw JM, Mian SY, Papoutselou E, Mahmoud S, Ahn K, Chudenkov I, Fuentealba C, Hussain S, Castro P, Bronstein AM, Kaski D, Arshad Q. Pathophysiological dissociation of the interaction between time pressure and trait anxiety during spatial orientation judgments. Eur J Neurosci 2020; 52:3215-3222. [PMID: 31950532 DOI: 10.1111/ejn.14680] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 11/27/2019] [Accepted: 12/11/2019] [Indexed: 01/02/2023]
Abstract
Spatial orientation is achieved by integrating visual, vestibular and proprioceptive cues. Individuals that rely strongly upon visual cues to facilitate spatial orientation are termed visually dependent. Heightened visual reliance commonly occurs in patients following vestibular dysfunction and can influence clinical outcome. Additionally, psychological factors, including anxiety, are associated with poorer clinical outcome following vestibular dysfunction. Given that visual dependency measures are affected by psychological and contextual influences, such as time pressure, we investigated the interaction between time pressure and anxiety upon visual dependency in healthy controls and vestibular migraine patients. Visual dependency was assessed using a "Rod and Disk" task at baseline and under time pressure (3 s to complete the task). Non-situational (trait) and situational (state) anxiety levels were quantified using the Spielberg State-Trait Anxiety Inventory. We calculated the change in visual dependency (VD) [∆VD = VDtime pressure - VDbaseline ] and correlated it with participants' trait anxiety scores. We observed a significant negative correlation between trait anxiety and the change in VD (R2 = .393, p < .001) in healthy controls and a positive correlation in dizzy patients (R2 = .317, p < .001). That is, healthy individuals that were more anxious became less visually dependent under time pressure (i.e., more accurate), whereas less anxious individuals became more visually dependent. The reverse was observed in vestibular migraine patients. Our results illustrate that anxiety can differentially modulate task performance during spatial orientation judgements under time pressure in healthy individuals and dizzy patients. These findings have potential implications for individualised patient rehabilitation therapies.
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Affiliation(s)
- Nadja F Bednarczuk
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, UK
- King's College Hospital, London, UK
| | - Jacob M Bradshaw
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
| | - Shan Y Mian
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
| | - Efstratia Papoutselou
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
| | - Sami Mahmoud
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
| | - Keunhwi Ahn
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, UK
| | - Ilya Chudenkov
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
| | - Constanza Fuentealba
- Leiden University Ringgold Standard Institution - Medicine, Leiden, The Netherlands
| | - Shahvaiz Hussain
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
| | - Patricia Castro
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
| | - Adolfo M Bronstein
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
| | - Diego Kaski
- Department of Neuro-otology, Royal National Throat Nose and Ear Hospital, University College London, London, UK
- Department of Clinical and Motor Neurosciences, Centre for Vestibular Neurosciences, London, UK
| | - Qadeer Arshad
- Division of Brain Sciences, Academic Department of Neuro-otology, Imperial College London, Charing Cross Hospital, London, UK
- inAmind Laboratory, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, UK
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Wattiez AS, O'Shea SA, Ten Eyck P, Sowers LP, Recober A, Russo AF, Fattal D. Patients With Vestibular Migraine are More Likely to Have Occipital Headaches than those With Migraine Without Vestibular Symptoms. Headache 2020; 60:1581-1591. [PMID: 32712960 DOI: 10.1111/head.13898] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/28/2020] [Accepted: 06/07/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To determine whether patients with vestibular migraine are more likely to suffer from an occipital headache than patients with migraine without vestibular symptoms. BACKGROUND Vestibular migraine is an underdiagnosed disorder in which migraine is associated with vestibular symptoms. Anatomical evidence and symptomatology hint at the involvement of brain structures in the posterior fossa (back of the head location). We hypothesized that vestibular migraine patients are more likely than migraineurs without vestibular symptoms to experience headaches located in the back of the head, that is, occipital headaches. METHODS A retrospective cross-sectional study was conducted at the University of Iowa Hospital and Clinics. Chart analysis of 169 patients was performed. The primary outcome was the location of the headache in vestibular migraine patients and migraineurs without vestibular symptoms. The secondary outcomes included the association of vestibular migraine with gender, age at onset of headache, age at onset of vestibular symptoms (such as vertigo, head motion-induced dizziness), aura, motion sickness, other associated symptoms, family history of headaches, and family history of motion sickness. RESULTS In vestibular migraine group, 45/103 (44%) had occipital location for their headaches vs 12/66 (18%) in migraine patients without vestibular symptoms, for an odd's ratio of 3.5 (95% CI = 1.7-7.2, P < .001). Additionally, the age at onset of headache was greater in the vestibular migraine group (28 ± 12 vs 18 ± 9 years, P < .001) and motion sickness was more common (41/98 (42%) in the vestibular migraine group, 1/64 (2%) in the migraine without vestibular symptoms group, P < .001). CONCLUSIONS This study suggests that patients with vestibular migraine are more likely to have occipital headaches than patients with migraine without vestibular symptoms. Our data support the initiation of a prospective study to determine whether a patient presenting with occipital headaches, with late onset of age of headache, and with a history of motion sickness is at an increased risk for the possible development of vestibular migraine.
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Affiliation(s)
- Anne-Sophie Wattiez
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, USA.,Center for the Prevention and Treatment of Visual Loss, Iowa VA Health Care System, Iowa City, IA, USA
| | - Sarah A O'Shea
- Department of Neurology, University of Iowa, Iowa City, IA, USA
| | - Patrick Ten Eyck
- Institute for Clinical and Translational Science, University of Iowa, Iowa City, IA, USA
| | - Levi P Sowers
- Center for the Prevention and Treatment of Visual Loss, Iowa VA Health Care System, Iowa City, IA, USA
| | - Ana Recober
- Department of Neurology, University of Iowa, Iowa City, IA, USA
| | - Andrew F Russo
- Department of Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA, USA.,Center for the Prevention and Treatment of Visual Loss, Iowa VA Health Care System, Iowa City, IA, USA.,Department of Neurology, University of Iowa, Iowa City, IA, USA
| | - Deema Fattal
- Department of Neurology, University of Iowa, Iowa City, IA, USA.,Neurology Section Iowa City VA Medical Center, Iowa City, IA, USA
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44
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Zhang Y, Zhang Y, Tian K, Wang Y, Fan X, Pan Q, Qin G, Zhang D, Chen L, Zhou J. Calcitonin gene-related peptide facilitates sensitization of the vestibular nucleus in a rat model of chronic migraine. J Headache Pain 2020; 21:72. [PMID: 32522232 PMCID: PMC7288551 DOI: 10.1186/s10194-020-01145-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 06/01/2020] [Indexed: 12/23/2022] Open
Abstract
Background Vestibular migraine has recently been recognized as a novel subtype of migraine. However, the mechanism that relate vestibular symptoms to migraine had not been well elucidated. Thus, the present study investigated vestibular dysfunction in a rat model of chronic migraine (CM), and to dissect potential mechanisms between migraine and vertigo. Methods Rats subjected to recurrent intermittent administration of nitroglycerin (NTG) were used as the CM model. Migraine- and vestibular-related behaviors were analyzed. Immunofluorescent analyses and quantitative real-time polymerase chain reaction were employed to detect expressions of c-fos and calcitonin gene-related peptide (CGRP) in the trigeminal nucleus caudalis (TNC) and vestibular nucleus (VN). Morphological changes of vestibular afferent terminals was determined under transmission electron microscopy. FluoroGold (FG) and CTB-555 were selected as retrograde tracers and injected into the VN and TNC, respectively. Lentiviral vectors comprising CGRP short hairpin RNA (LV-CGRP) was injected into the trigeminal ganglion. Results CM led to persistent thermal hyperalgesia, spontaneous facial pain, and prominent vestibular dysfunction, accompanied by the upregulation of c-fos labeling neurons and CGRP immunoreactivity in the TNC (c-fos: vehicle vs. CM = 2.9 ± 0.6 vs. 45.5 ± 3.4; CGRP OD: vehicle vs. CM = 0.1 ± 0.0 vs. 0.2 ± 0.0) and VN (c-fos: vehicle vs. CM = 2.3 ± 0.8 vs. 54.0 ± 2.1; CGRP mRNA: vehicle vs. CM = 1.0 ± 0.1 vs. 2.4 ± 0.1). Furthermore, FG-positive neurons was accumulated in the superficial layer of the TNC, and the number of c-fos+/FG+ neurons were significantly increased in rats with CM compared to the vehicle group (vehicle vs. CM = 25.3 ± 2.2 vs. 83.9 ± 3.0). Meanwhile, CTB-555+ neurons dispersed throughout the VN. The structure of vestibular afferent terminals was less pronounced after CM compared with the peripheral vestibular dysfunction model. In vivo knockdown of CGRP in the trigeminal ganglion significantly reduced the number of c-fos labeling neurons (LV-CGRP vs. LV-NC = 9.9 ± 3.0 vs. 60.0 ± 4.5) and CGRP mRNA (LV-CGRP vs. LV-NC = 1.0 ± 0.1 vs. 2.1 ± 0.2) in the VN, further attenuating vestibular dysfunction after CM. Conclusions These data demonstrates the possibility of sensitization of vestibular nucleus neurons to impair vestibular function after CM, and anti-CGRP treatment to restore vestibular dysfunction in patients with CM.
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Affiliation(s)
- Yun Zhang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1st Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Yixin Zhang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1st Youyi Road, Yuzhong District, Chongqing, 400016, China.
| | - Ke Tian
- Department of Vascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yunfeng Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1st Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Xiaoping Fan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1st Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Qi Pan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1st Youyi Road, Yuzhong District, Chongqing, 400016, China
| | - Guangcheng Qin
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Dunke Zhang
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lixue Chen
- Department of Vascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiying Zhou
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1st Youyi Road, Yuzhong District, Chongqing, 400016, China
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Abstract
The diagnosis and management of vertigo remains a challenge for clinicians, including general neurology. In recent years there have been advances in the understanding of established vestibular syndromes, and the development of treatments for existing vestibular diagnoses. In this 'update' I will review how our understanding of previously "unexplained" dizziness in the elderly is changing, explore novel insights into the pathophysiology of vestibular migraine, and its relationship to the newly coined term 'persistent postural perceptual dizziness', and finally discuss how a simple bedside oculomotor assessment may help identify vestibular presentations of stroke.
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Affiliation(s)
- Diego Kaski
- Department of Neurology, National Hospital for Neurology and Neurosurgery, Queen Square, London, WC1N 3BG, UK. .,Centre for Vestibular and Behavioural Neurosciences, Department of Clinical and Motor Neurosciences, University College London, 33 Queen Square, London, WC1N 3BG, UK.
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46
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Helmchen C, Machner B, Rother M, Spliethoff P, Göttlich M, Sprenger A. Effects of galvanic vestibular stimulation on resting state brain activity in patients with bilateral vestibulopathy. Hum Brain Mapp 2020; 41:2527-2547. [PMID: 32103579 PMCID: PMC7267973 DOI: 10.1002/hbm.24963] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 02/03/2020] [Accepted: 02/11/2020] [Indexed: 01/04/2023] Open
Abstract
We examined the effect of galvanic vestibular stimulation (GVS) on resting state brain activity using fMRI (rs‐fMRI) in patients with bilateral vestibulopathy. Based on our previous findings, we hypothesized that GVS, which excites the vestibular nerve fibers, (a) increases functional connectivity in temporoparietal regions processing vestibular signals, and (b) alleviates abnormal visual–vestibular interaction. Rs‐fMRI of 26 patients and 26 age‐matched healthy control subjects was compared before and after GVS. The stimulation elicited a motion percept in all participants. Using different analyses (degree centrality, DC; fractional amplitude of low frequency fluctuations [fALFF] and seed‐based functional connectivity, FC), group comparisons revealed smaller rs‐fMRI in the right Rolandic operculum of patients. After GVS, rs‐fMRI increased in the right Rolandic operculum in both groups and in the patients' cerebellar Crus 1 which was related to vestibular hypofunction. GVS elicited a fALFF increase in the visual cortex of patients that was inversely correlated with the patients' rating of perceived dizziness. After GVS, FC between parietoinsular cortex and higher visual areas increased in healthy controls but not in patients. In conclusion, short‐term GVS is able to modulate rs‐fMRI in healthy controls and BV patients. GVS elicits an increase of the reduced rs‐fMRI in the patients' right Rolandic operculum, which may be an important contribution to restore the disturbed visual–vestibular interaction. The GVS‐induced changes in the cerebellum and the visual cortex were associated with lower dizziness‐related handicaps in patients, possibly reflecting beneficial neural plasticity that might subserve visual–vestibular compensation of deficient self‐motion perception.
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Affiliation(s)
- Christoph Helmchen
- Department of Neurology, University Hospitals Schleswig-Holstein, Lübeck, Germany
| | - Björn Machner
- Department of Neurology, University Hospitals Schleswig-Holstein, Lübeck, Germany
| | - Matthias Rother
- Department of Neurology, University Hospitals Schleswig-Holstein, Lübeck, Germany
| | - Peer Spliethoff
- Department of Neurology, University Hospitals Schleswig-Holstein, Lübeck, Germany
| | - Martin Göttlich
- Department of Neurology, University Hospitals Schleswig-Holstein, Lübeck, Germany
| | - Andreas Sprenger
- Department of Neurology, University Hospitals Schleswig-Holstein, Lübeck, Germany.,Institute of Psychology II, University of Lübeck, Lübeck, Germany
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Self-motion perception is sensitized in vestibular migraine: pathophysiologic and clinical implications. Sci Rep 2019; 9:14323. [PMID: 31586151 PMCID: PMC6778132 DOI: 10.1038/s41598-019-50803-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 09/16/2019] [Indexed: 12/30/2022] Open
Abstract
Vestibular migraine (VM) is the most common cause of spontaneous vertigo but remains poorly understood. We investigated the hypothesis that central vestibular pathways are sensitized in VM by measuring self-motion perceptual thresholds in patients and control subjects and by characterizing the vestibulo-ocular reflex (VOR) and vestibular and headache symptom severity. VM patients were abnormally sensitive to roll tilt, which co-modulates semicircular canal and otolith organ activity, but not to motions that activate the canals or otolith organs in isolation, implying sensitization of canal-otolith integration. When tilt thresholds were considered together with vestibular symptom severity or VOR dynamics, VM patients segregated into two clusters. Thresholds in one cluster correlated positively with symptoms and with the VOR time constant; thresholds in the second cluster were uniformly low and independent of symptoms and the time constant. The VM threshold abnormality showed a frequency-dependence that paralleled the brain stem velocity storage mechanism. These results support a pathogenic model where vestibular symptoms emanate from the vestibular nuclei, which are sensitized by migraine-related brainstem regions and simultaneously suppressed by inhibitory feedback from the cerebellar nodulus and uvula, the site of canal-otolith integration. This conceptual framework elucidates VM pathophysiology and could potentially facilitate its diagnosis and treatment.
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48
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Baraldi C, Gherpelli C, Alicandri Ciufelli M, Monzani D, Pini LA, Pani L, Guerzoni S. A case-control study of visually evoked postural responses in childhood with primary headaches. Neurol Sci 2019; 41:305-311. [PMID: 31502001 DOI: 10.1007/s10072-019-04072-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/04/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND Disorientation, nausea, confusion, dizziness, and displacement are frequently complained by headache-suffering children. Anyhow, the cause of these symptoms is still unclear, and a dysfunction of vestibular pathways or their alteration due to central pain pathways hyper-activation, has been proposed. The aim of this study is to use posturography to explore the balance function of headache-suffering children during pain-free periods. METHODS Posturography was performed on 19 migraineurs, 11 tension-type headache sufferers, and 20 healthy controls. Posturographic measures were performed during headache-free periods under different conditions: with eyes opened, eyes closed, and during right and left optokinetic stimulation. The last 2 conditions were used to mimic unreliable visual signals that can confound vestibular system. RESULTS During eyes-closed conditions, headache-suffering children displayed higher displacements than healthy controls, since statokinesiogram surface was higher in tension-type headache sufferers and migraineurs compared with controls (P value = 0.0095). Romberg's index, indicating the overall stability of the subject, was lower in healthy controls than in headache sufferers (P = 0.0139), thus suggesting a vestibular impairment in the seconds. Moreover, both during right and left optokinetic stimulation, the statokinesiogram length was higher in headache-suffering children (P < 0.0001). Thereafter, statokinesiogram surface was higher in migraineurs during right optokinetic stimulation (P = 0.0388) than in tension-type headache sufferers when stimulation was directed on the opposite side (P = 0.0249). CONCLUSIONS These results suggest a central alteration of vestibular pathways in headache-suffering children, that makes balance function more dependent from visual inputs than healthy subjects, even in inter-ictal phases.
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Affiliation(s)
- Carlo Baraldi
- School of Pharmacology and Clinical Toxicology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy.
| | - Chiara Gherpelli
- Otolaryngology Unit, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
| | | | - Daniele Monzani
- Otolaryngology Unit, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
| | - Luigi Alberto Pini
- Medical Toxicology Unit- Headache and Drug Abuse Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
| | - Luca Pani
- Section of Pharmacology, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via Campi 287, 41124, Modena, Italy
| | - Simona Guerzoni
- Medical Toxicology Unit- Headache and Drug Abuse Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124, Modena, Italy
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Huang TC, Wang SJ, Kheradmand A. Vestibular migraine: An update on current understanding and future directions. Cephalalgia 2019; 40:107-121. [PMID: 31394919 DOI: 10.1177/0333102419869317] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Vestibular migraine is among the most common causes of recurrent vertigo in the general population. Despite its prevalence and high impact on healthcare cost and utilization, it has remained an under-recognized condition with largely unknown pathophysiology. In the present article, we aim to provide an overview of the current understanding of vestibular migraine. METHODS We undertook a narrative literature review on the epidemiology, presentations, clinical and laboratory findings, pathophysiology, and treatments of vestibular migraine. RESULTS Currently, the diagnosis of vestibular migraine relies solely on clinical symptoms since clinical tests of vestibular function are typically normal, or difficult to interpret based on inconsistent results reported in earlier studies. The challenges related to diagnosis of vestibular migraine lie in its relatively broad spectrum of manifestations, the absence of typical migraine headaches with vestibular symptoms, and its very recent definition as a distinct entity. Here, we highlight these challenges, discuss common vestibular symptoms and clinical presentations in vestibular migraine, and review the current aspects of its clinical diagnosis and evaluation. The concepts related to the pathophysiology and treatment of vestibular migraine are also discussed. CONCLUSION Vestibular migraine is still underdiagnosed clinically. Future studies are needed to address the pathophysiological mechanisms and investigate effective treatment regimens.
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Affiliation(s)
- Tzu-Chou Huang
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Living Water Neurological Clinic, Tainan, Taiwan
| | - Shuu-Jiun Wang
- Neurological Institute, Taipei-Veterans General Hospital, Taipei, Taiwan.,Brain Research Center and School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Amir Kheradmand
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Otolaryngology-Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Bell CA, Carver NS, Zbaracki JA, Kelty-Stephen DG. Non-linear Amplification of Variability Through Interaction Across Scales Supports Greater Accuracy in Manual Aiming: Evidence From a Multifractal Analysis With Comparisons to Linear Surrogates in the Fitts Task. Front Physiol 2019; 10:998. [PMID: 31447691 PMCID: PMC6692465 DOI: 10.3389/fphys.2019.00998] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 07/18/2019] [Indexed: 12/19/2022] Open
Abstract
Movement coordination depends on directing our limbs to the right place and in the right time. Movement science can study this central requirement in the Fitts task that asks participants to touch each of two targets in alternation, as accurately and as fast as they can. The Fitts task is an experimental attempt to focus on how the movement system balances its attention to speed and to accuracy. This balance in the Fitts task exhibits a hierarchical organization according to which finer details (e.g., kinematics of single sweeps from one target to the other) change with relatively broader constraints of task parameters (e.g., distance between targets and width of targets). The present work seeks to test the hypothesis that this hierarchical organization of movement coordination reflects a multifractal tensegrity in which non-linear interactions across scale support stability. We collected movement series data during a easy variant of the Fitts task to apply just such a multifractal analysis with surrogate comparison to allow clearer test of non-linear interactions across scale. Furthermore, we test the role of visual feedback both in potential and in fact, i.e., by manipulating both whether experimenters instructed participants that they might potentially have to close their eyes during the task and whether participants actually closed their eyes halfway through the task. We predict that (1) non-linear interactions across scales in hand movement series will produce variability that will actually stabilize aiming in the Fitts task, reducing standard deviation of target contacts; (2) non-linear interactions across scales in head sway will stabilize aiming following the actual closing eyes; and (3) non-linear interactions across scales in head sway and in hand movements will interact to support stabilizing effects of expectation about closing eyes. In sum, this work attempts to make the case that the multifractal-tensegrity hypothesis supports more accurate aiming behavior in the Fitts task.
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Affiliation(s)
| | - Nicole S. Carver
- Department of Psychology, University of Cincinnati, Cincinnati, OH, United States
| | - John A. Zbaracki
- Department of Psychology, Grinnell College, Grinnell, IA, United States
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