7
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Audiovestibulograma: una forma práctica de ver todos los resultados Translated title: Audiovestibulogram: a practical way to see all the results

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          RESUMEN Introducción y objetivo: El oído (órgano cócleovestibular) es un órgano multifrecuencial. Por lo tanto, debe verse a este órgano como lo que es: una unidad embriológica, anatómica, fisiológica y clínica. Objetivo: Desarrollar una cartilla audiovestibular donde se puedan volcar los resultados obtenidos en los diferentes estudios que valoran al oído como un todo. Método: Se tomó como base la cartilla audiométrica y su simbología clásica, extendiendo su rango frecuencial y colocando los diferentes estudios a documentar: audiometría tonal liminal, impedanciometría, reflejo estapedial, electrococleografía, potenciales miogénicos vestibulares, test vibracional, video head impulse test, prueba rotatoria, prueba calórica y comandos oculomotores centrales Discusión: Esta forma de presentación de datos, si bien no es completa, otorga la mayoría de los estudios de diagnóstico audiovestibulares. A primera vista genera sobrecarga de información al especialista, requiriendo un mínimo de entrenamiento. Conclusiones: Se trata de una cartilla de documentación única de los principales estudios cócleovestibulares, con sus respectivas referencias de normalidad, para ser presentada ante el especialista en una sola imagen requiriendo un mínimo de entrenamiento.

          Translated abstract

          ABSTRACT Introduction and objectives: The ear or cochleovestibular organ is a multifrecuency organ, and therefore should be regarded as an embryological, anatomical, physiological, and clinical unit. Objetivo: To develop an audiovestibular primer where the results obtained in the different studies that value the ear as a whole can be uploaded. Method: Starting from a typical audiogram chart and list of signs, we extended the range of frequencies tested and added a roster of others studies: PTA, tympanometry, stapedius reflex test, electrocochleography, VEMPs, mastoid vibratory test, video head impulse test, rotational test, caloric test and central oculomotor command test. Discussion: This form of data presentation, although it is not complete, gives most of the diagnoses. At first sight it generates information overload to the specialist, requiring a minimum of training. Conclusions: This data-rich report offers information from the main cochleovestibular studies and their respective normal ranges and can be easily read by specialist without any specific training.

          Related collections

          Most cited references14

          • Record: found
          • Abstract: found
          • Article: not found

          The new vestibular stimuli: sound and vibration-anatomical, physiological and clinical evidence.

          The classical view of the otoliths-as flat plates of fairly uniform receptors activated by linear acceleration dragging on otoconia and so deflecting the receptor hair bundles-has been replaced by new anatomical and physiological evidence which shows that the maculae are much more complex. There is anatomical spatial differentiation across the macula in terms of receptor types, hair bundle heights, stiffness and attachment to the overlying otolithic membrane. This anatomical spatial differentiation corresponds to the neural spatial differentiation of response dynamics from the receptors and afferents from different regions of the otolithic maculae. Specifically, receptors in a specialized band of cells, the striola, are predominantly type I receptors, with short, stiff hair bundles and looser attachment to the overlying otoconial membrane than extrastriolar receptors. At the striola the hair bundles project into holes in the otolithic membrane, allowing for fluid displacement to deflect the hair bundles and activate the cell. This review shows the anatomical and physiological evidence supporting the hypothesis that fluid displacement, generated by sound or vibration, deflects the short stiff hair bundles of type I receptors at the striola, resulting in neural activation of the irregular afferents innervating them. So these afferents are activated by sound or vibration and show phase-locking to individual cycles of the sound or vibration stimulus up to frequencies above 2000 Hz, underpinning the use of sound and vibration for clinical tests of vestibular function.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Sensitivity and specificity of mastoid vibration test in detection of effects of vestibular neuritis.

            Aim of this study was to determine sensitivity and specificity of the mastoid vibration test in patients who had suffered an attack of vestibular neuritis. Results were compared with the caloric test and two bedside tests of vestibular function (head shaking test and head thrust test). Results are reported in 28 patients who had a residual vestibular deficit 6 months after acute neuritis and in 25 healthy subjects. Mastoid vibration nystagmus was evoked in 21 patients but not in controls. In these patients, mastoid vibration test had a sensitivity of 75% and specificity of 100%. Since one patient had inverted mastoid vibration nystagmus, specificity of identification on the pathological side was 95%. Sensitivity of the test increased with increasing severity of the vestibular lesion. Indeed, mastoid vibration nystagmus was induced in 93% of patients with caloric paralysis and in 58% of those with caloric paresis. Nystagmus could usually be modulated or elicited by stimulation of either mastoid. In the few patients in whom mastoid vibration nystagmus was elicited only from one side, or when there was a clear difference in intensity of the nystagmus induced on the two sides, the stimulated side was more often the affected side. Four patients still showed spontaneous nystagmus. The caloric test was abnormal in 26/28 patients (93%) with paralysis in 16 and paresis in 12; 71% of patients had a head shaking induced nystagmus: 64% had an asymmetrical response in head thrust test. In conclusion, mastoid vibration test was overall more sensitive than head thrust test. Mastoid vibration test was slightly less sensitive than head shaking test in patients with severe residual deficit and more sensitive in patients with partial deficit. Mastoid vibration test, a valid, low cost clinical screening test for rapid detection of asymmetrical vestibular function, does not cause patient discomfort. It is suggested that this test be included in the diagnostic workup of all patients with suspected vestibular dysfunction.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Utilidad clínica de los potenciales evocados miogénicos vestibulares (VEMPs)

                Bookmark

                Author and article information

                Journal
                orl
                Revista ORL
                Rev. ORL
                Ediciones Universidad de Salamanca (Salamanca, Salamanca, Spain )
                2444-7986
                March 2021
                : 12
                : 1
                : 35-45
                Affiliations
                [3] Montevideo orgnameClinica Otoneurologica del Parque Uruguay
                [2] Maldonado orgnameAsistencial Medica Departamental de Maldonado Uruguay
                [1] Montevideo orgnameUniversidad de la República orgdiv1Facultad de Medicina orgdiv2Cátedra de Otorrinolaringología Uruguay
                Article
                S2444-79862021000100004 S2444-7986(21)01200100004
                10.14201/orl.23458
                235ec675-64bb-4265-98f4-272ad5fd30ef

                This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

                History
                : 02 July 2020
                : 15 June 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 21, Pages: 11
                Product

                SciELO Spain

                Categories
                Artículo original

                multifrecuency,cocleovestibular,audiogram chart,cochleovestibular,cartilla audiometrica,multifrecuencial,audiogram,audiograma

                Comments

                Comment on this article