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Marcelli V, Giannoni B. A Clinical Infrared Video-Oculoscopy Suppression Head Impulse (IR-cSHIMP) Test. Audiol Res 2024; 14:151-165. [PMID: 38391770 PMCID: PMC10886088 DOI: 10.3390/audiolres14010013] [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: 12/26/2023] [Revised: 01/21/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND We propose a Suppression Head IMPulse (SHIMP) test method that provides for equipment only through the use of InfraRed Video-OculoScopy (IR-VOS) and allows horizontal and vertical semicircular canal function evaluation in bedside mode. We therefore named the test InfraRed clinical SHIMP (IR-cSHIMP). METHODS To check IR-cSHIMP diagnostic efficiency, we studied 22 normal subjects, 18 patients with unilateral, and 6 with bilateral deficient vestibulopathy. Each subject first underwent a vestibular examination and, only later, an IRc-SHIMP test. RESULTS When the IR-cSHIMP test was performed in the horizontal plane, all normal subjects showed anti-compensatory saccades. When the vertical semicircular canal function was evaluated, the same result was obtained in all normal subjects except three, which were considered false positives. In patients with vestibular deficits, the test performed in the horizontal and vertical planes were always pathological, with 100% agreement between clinical and instrumental tests. CONCLUSIONS Our bedside method proved to be fast, simple, and effective in discriminating between healthy and pathological subjects. It required only the same skill as the better-known cHIT. For these reasons, we believe that the IR-cSHIMP should be part of daily clinical practice as a useful tool in the selection of patients to undergo more sophisticated investigations.
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Affiliation(s)
| | - Beatrice Giannoni
- Unit of Audiology, Department of Neuroscience, Psychology, Drug's Area, and Child's Health, University of Florence, 50134 Florence, Italy
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van Dooren T, Starkov D, Lucieer F, Dobbels B, Janssen M, Guinand N, Pérez Fornos A, Kingma H, Van Rompaey V, van de Berg R. Suppression Head Impulse Test (SHIMP) versus Head Impulse Test (HIMP) When Diagnosing Bilateral Vestibulopathy. J Clin Med 2022; 11:jcm11092444. [PMID: 35566570 PMCID: PMC9102589 DOI: 10.3390/jcm11092444] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 02/05/2023] Open
Abstract
The Suppression Head Impulse (SHIMP) test was introduced as an alternative to the Head Impulse Paradigm (HIMP) to overcome challenges in VOR gain calculation due to the interference of covert saccades. The objectives of this study were (1) to determine if SHIMP, compared to HIMP, reduces covert saccades in BV patients and (2) to define the agreement on diagnosing BV between SHIMP and HIMP. First, the number of covert saccades was compared between SHIMP and HIMP. Secondly, VOR gain was compared between SHIMP and HIMP. Lastly, the agreement between SHIMP and HIMP on identifying BV (horizontal VOR gain <0.6) was evaluated. A total of 98 BV patients were included. To our knowledge, this is the largest study population on SHIMP testing in BV patients. Covert saccades were significantly reduced, and a lower VOR gain was found during SHIMP compared to HIMP (p < 0.001). However, the clinical relevance of these statistically significant differences is small. In 93% of the patients, an agreement was found between the two paradigms regarding the diagnosis of BV, and both paradigms detect BV in the vast majority of patients.
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Affiliation(s)
- Tessa van Dooren
- Division of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands; (F.L.); (N.G.); (H.K.); (R.v.d.B.)
- Correspondence:
| | - Dmitrii Starkov
- Faculty of Physics, Tomsk State Research University, 634050 Tomsk, Russia;
| | - Florence Lucieer
- Division of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands; (F.L.); (N.G.); (H.K.); (R.v.d.B.)
| | - Bieke Dobbels
- Faculty of Medicine and Health Sciences, University of Antwerp, 2000 Antwerp, Belgium; (B.D.); (V.V.R.)
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Miranda Janssen
- Department of ENT/Audiology, School for Mental Health and Neuroscience (MHENS), Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands;
- Department of Methodology and Statistics, Care and Public Health Research Institute (CAPHRI), Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Nils Guinand
- Division of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands; (F.L.); (N.G.); (H.K.); (R.v.d.B.)
- Service of Otorhinolaryngology Head and Neck Surgery, Department of Clinical Neurosciences, Geneva University Hospitals, 1205 Geneva, Switzerland;
| | - Angelica Pérez Fornos
- Service of Otorhinolaryngology Head and Neck Surgery, Department of Clinical Neurosciences, Geneva University Hospitals, 1205 Geneva, Switzerland;
| | - Herman Kingma
- Division of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands; (F.L.); (N.G.); (H.K.); (R.v.d.B.)
| | - Vincent Van Rompaey
- Faculty of Medicine and Health Sciences, University of Antwerp, 2000 Antwerp, Belgium; (B.D.); (V.V.R.)
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, 2650 Edegem, Belgium
| | - Raymond van de Berg
- Division of Balance Disorders, Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands; (F.L.); (N.G.); (H.K.); (R.v.d.B.)
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