The Functional Head Impulse Test to Assess Oscillopsia in Bilateral Vestibulopathy
Introduction: Bilateral vestibulopathy (BV) is a chronic condition in which vestibular function is severely impaired or absent on both ears. Oscillopsia is one of the main symptoms of BV. Oscillopsia can be quantified objectively by functional vestibular tests, and subjectively by questionnaires. Re...
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Frontiers Media S.A.
2019-04-01
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| Series: | Frontiers in Neurology |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fneur.2019.00365/full |
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| author | T. S. van Dooren F. M. P. Lucieer S. Duijn A. M. L. Janssen A. M. L. Janssen N. Guinand N. Guinand A. Pérez Fornos V. Van Rompaey V. Van Rompaey H. Kingma H. Kingma S. Ramat R. van de Berg R. van de Berg |
| author_facet | T. S. van Dooren F. M. P. Lucieer S. Duijn A. M. L. Janssen A. M. L. Janssen N. Guinand N. Guinand A. Pérez Fornos V. Van Rompaey V. Van Rompaey H. Kingma H. Kingma S. Ramat R. van de Berg R. van de Berg |
| author_sort | T. S. van Dooren |
| collection | DOAJ |
| description | Introduction: Bilateral vestibulopathy (BV) is a chronic condition in which vestibular function is severely impaired or absent on both ears. Oscillopsia is one of the main symptoms of BV. Oscillopsia can be quantified objectively by functional vestibular tests, and subjectively by questionnaires. Recently, a new technique for testing functionally effective gaze stabilization was developed: the functional Head Impulse Test (fHIT). This study compared the fHIT with the Dynamic Visual Acuity assessed on a treadmill (DVAtreadmill) and Oscillopsia Severity Questionnaire (OSQ) in the context of objectifying the experience of oscillopsia in patients with BV.Methods: Inclusion criteria comprised: (1) summated slow phase velocity of nystagmus of <20°/s during bithermal caloric tests, (2) torsion swing tests gain of <30% and/or phase <168°, and (3) complaints of oscillopsia and/or imbalance. During the fHIT (Beon Solutions srl, Italy) patients were seated in front of a computer screen. During a passive horizontal head impulse a Landolt C optotype was shortly displayed. Patients reported the seen optotype by pressing the corresponding button on a keyboard. The percentage correct answers was registered for leftwards and rightwards head impulses separately. During DVAtreadmill patients were positioned on a treadmill in front of a computer screen that showed Sloan optotypes. Patients were tested in static condition and in dynamic conditions (while walking on the treadmill at 2, 4, and 6 km/h). The decline in LogMAR between static and dynamic conditions was registered for each speed. Every patient completed the Oscillopsia Severity Questionnaire (OSQ).Results: In total 23 patients were included. This study showed a moderate correlation between OSQ outcomes and the fHIT [rightwards head rotations (rs = −0.559; p = 0.006) leftwards head rotations (rs = −0.396; p = 0.061)]. No correlation was found between OSQ outcomes and DVAtreadmill, or between DVAtreadmill and fHIT. All patients completed the fHIT, 52% of the patients completed the DVAtreadmill on all speeds.Conclusion: The fHIT seems to be a feasible test to quantify oscillopsia in BV since, unlike DVAtreadmill, it correlates with the experienced oscillopsia measured by the OSQ, and more BV patients are able to complete the fHIT than DVAtreadmill. |
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| spelling | doaj.art-c7074efa11c5429fb3ba5d0513518bba2022-12-22T01:05:25ZengFrontiers Media S.A.Frontiers in Neurology1664-22952019-04-011010.3389/fneur.2019.00365436095The Functional Head Impulse Test to Assess Oscillopsia in Bilateral VestibulopathyT. S. van Dooren0F. M. P. Lucieer1S. Duijn2A. M. L. Janssen3A. M. L. Janssen4N. Guinand5N. Guinand6A. Pérez Fornos7V. Van Rompaey8V. Van Rompaey9H. Kingma10H. Kingma11S. Ramat12R. van de Berg13R. van de Berg14Division of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, Maastricht, NetherlandsDivision of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, Maastricht, NetherlandsFaculty of Health, Medicine and Life Sciences, University of Maastricht, Maastricht, NetherlandsDepartment of ENT/Audiology, School for Mental Health and Neuroscience (MHENS), Maastricht University Medical Centre, Maastricht, NetherlandsDepartment of Methodology and Statistics, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, NetherlandsDivision of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, Maastricht, NetherlandsService of Otorhinolaryngology Head and Neck Surgery, Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, SwitzerlandService of Otorhinolaryngology Head and Neck Surgery, Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, SwitzerlandFaculty of Medicine and Health Sciences, University of Antwerp, Antwerp, BelgiumDepartment of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Edegem, BelgiumDivision of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, Maastricht, NetherlandsFaculty of Physics, Tomsk State Research University, Tomsk, RussiaDepartment of Computer, Electric and Biomedical Engineering, University of Pavia, Pavia, ItalyDivision of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, Maastricht, NetherlandsFaculty of Physics, Tomsk State Research University, Tomsk, RussiaIntroduction: Bilateral vestibulopathy (BV) is a chronic condition in which vestibular function is severely impaired or absent on both ears. Oscillopsia is one of the main symptoms of BV. Oscillopsia can be quantified objectively by functional vestibular tests, and subjectively by questionnaires. Recently, a new technique for testing functionally effective gaze stabilization was developed: the functional Head Impulse Test (fHIT). This study compared the fHIT with the Dynamic Visual Acuity assessed on a treadmill (DVAtreadmill) and Oscillopsia Severity Questionnaire (OSQ) in the context of objectifying the experience of oscillopsia in patients with BV.Methods: Inclusion criteria comprised: (1) summated slow phase velocity of nystagmus of <20°/s during bithermal caloric tests, (2) torsion swing tests gain of <30% and/or phase <168°, and (3) complaints of oscillopsia and/or imbalance. During the fHIT (Beon Solutions srl, Italy) patients were seated in front of a computer screen. During a passive horizontal head impulse a Landolt C optotype was shortly displayed. Patients reported the seen optotype by pressing the corresponding button on a keyboard. The percentage correct answers was registered for leftwards and rightwards head impulses separately. During DVAtreadmill patients were positioned on a treadmill in front of a computer screen that showed Sloan optotypes. Patients were tested in static condition and in dynamic conditions (while walking on the treadmill at 2, 4, and 6 km/h). The decline in LogMAR between static and dynamic conditions was registered for each speed. Every patient completed the Oscillopsia Severity Questionnaire (OSQ).Results: In total 23 patients were included. This study showed a moderate correlation between OSQ outcomes and the fHIT [rightwards head rotations (rs = −0.559; p = 0.006) leftwards head rotations (rs = −0.396; p = 0.061)]. No correlation was found between OSQ outcomes and DVAtreadmill, or between DVAtreadmill and fHIT. All patients completed the fHIT, 52% of the patients completed the DVAtreadmill on all speeds.Conclusion: The fHIT seems to be a feasible test to quantify oscillopsia in BV since, unlike DVAtreadmill, it correlates with the experienced oscillopsia measured by the OSQ, and more BV patients are able to complete the fHIT than DVAtreadmill.https://www.frontiersin.org/article/10.3389/fneur.2019.00365/fullfunctional head impulse test (fHIT)dynamic visual acuity (DVA)Oscillopsiaoscillopsia severity questionnairefunctional vestibular testingbilateral vestibulopathy (BV) |
| spellingShingle | T. S. van Dooren F. M. P. Lucieer S. Duijn A. M. L. Janssen A. M. L. Janssen N. Guinand N. Guinand A. Pérez Fornos V. Van Rompaey V. Van Rompaey H. Kingma H. Kingma S. Ramat R. van de Berg R. van de Berg The Functional Head Impulse Test to Assess Oscillopsia in Bilateral Vestibulopathy Frontiers in Neurology functional head impulse test (fHIT) dynamic visual acuity (DVA) Oscillopsia oscillopsia severity questionnaire functional vestibular testing bilateral vestibulopathy (BV) |
| title | The Functional Head Impulse Test to Assess Oscillopsia in Bilateral Vestibulopathy |
| title_full | The Functional Head Impulse Test to Assess Oscillopsia in Bilateral Vestibulopathy |
| title_fullStr | The Functional Head Impulse Test to Assess Oscillopsia in Bilateral Vestibulopathy |
| title_full_unstemmed | The Functional Head Impulse Test to Assess Oscillopsia in Bilateral Vestibulopathy |
| title_short | The Functional Head Impulse Test to Assess Oscillopsia in Bilateral Vestibulopathy |
| title_sort | functional head impulse test to assess oscillopsia in bilateral vestibulopathy |
| topic | functional head impulse test (fHIT) dynamic visual acuity (DVA) Oscillopsia oscillopsia severity questionnaire functional vestibular testing bilateral vestibulopathy (BV) |
| url | https://www.frontiersin.org/article/10.3389/fneur.2019.00365/full |
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