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1.
Braz. j. otorhinolaryngol. (Impr.) ; 75(3): 456-462, maio-jun. 2009. ilus, graf
Article in English, Portuguese | LILACS | ID: lil-521107

ABSTRACT

The vestibular evoked myogenic potential (VEMP) test is a relatively new diagnostic tool that is in the process of being investigated in patients with specific vestibular disorders. Briefly, the VEMP is a biphasic response elicited by loud clicks or tone bursts recorded from the tonically contracted sternocleidomastoid muscle, being the only resource available to assess the function of the saccule and the lower portion of the vestibular nerve. AIM: In this review, we shall highlight the history, methods, current VEMP status, and discuss its specific application in the diagnosis of the Ménière's Syndrome.


O teste do potencial evocado miogênico vestibular (PEMV) é um instrumento diagnóstico relativamente novo e ainda em processo de validação em estudos com pacientes portadores de desordens vestibulares específicas. De forma resumida, o PEMV é uma resposta bifásica em resposta a estímulos sonoros gravados a partir de contrações do músculo esternocleidomastóideo e é o único recurso existente para avaliar a função do sáculo e da divisão inferior do nervo vestibular. OBJETIVO: Nesta revisão iremos destacar a história, método de realização, situação atual da pesquisa envolvendo o PEMV, além de discutir as suas aplicações específicas no diagnóstico da síndrome de Ménière.


Subject(s)
Humans , Acoustic Stimulation/methods , Saccule and Utricle/innervation , Vestibular Diseases/diagnosis , Vestibular Nerve/physiopathology , Electromyography , Evoked Potentials, Auditory , Vestibular Function Tests , Vestibular Diseases/physiopathology
2.
Indian J Lepr ; 1994 Oct-Dec; 66(4): 421-8
Article in English | IMSEAR | ID: sea-54482

ABSTRACT

Thirty-nine patients with leprosy and fifteen sex- and age-matched controls were investigated for disorders of the fifth and seventh cranial nerves and that of the audiovestibular system. Sensorineural hearing loss found to be of cochlear origin was detected in eight (22%) of the patients with leprosy compared to none in the control group (p > 0.05). Vestibular dysfunction was noted in four patients (11.1%) compared to none in the control group (p < or = 0.05). Two cases were found to have fifth nerve involvement and one (2.8%) had seventh nerve involvement. None in the control group had fifth or seventh nerve deficit.


Subject(s)
Adult , Caloric Tests , Case-Control Studies , Facial Nerve/physiopathology , Female , Hearing Loss, Sensorineural/etiology , Humans , Leprosy, Lepromatous/complications , Male , Middle Aged , Trigeminal Nerve/physiopathology , Vestibular Nerve/physiopathology
3.
Acta AWHO ; 11(3): 127-30, set.-dez. 1992. tab
Article in Portuguese | LILACS | ID: lil-187288

ABSTRACT

Foram estudados os sinais e sintomas otoneurológicos de 49 pacientes com diagnóstico de neuronite vestibular, através do exame otorrinolaringológico compreendido por: exame otorrinolaringológico, exame audiológico e exame vestibular. Os achados mostraram que a neuronite vestibular atinge especialmente o sistema vestibular, determinando comprometimento periférico e do tipo deficitário.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Neuritis/physiopathology , Vestibular Nerve/physiopathology , Vestibulocochlear Nerve Diseases/physiopathology , Hearing Tests , Vestibular Function Tests
4.
An. Soc. Mex. Otorrinolaringol ; 30(3): 90-4, jun.-ago. 1985. tab
Article in Spanish | LILACS | ID: lil-33139

ABSTRACT

Se estudiaron las manifestaciones de daño vestibular en 27 pacientes adultos, 22 con síndrome vestibular agudo unilateral (neuronitis vestibular) exclusivamente y 5 pacientes con afección vestibular acompañada de lesión del nervio coclear y/o facial (mononeuritis craneal múltiple). Ambos grupos mostraron en numerosos casos, además de la paresia vestibular que caracteriza al padecimiento, diversas alteraciones vestibulares, y de tipo central, como nistagmus espontáneo, preponderancia direccional térmica y rotatoria, disminución de la velocidad sacádica y del componente lento de las respuestas oculares ante estímulos visuales y optovestibulares y alteraciones de los potenciales auditivos evocados del tallo cerebral. Se intenta hacer una sistematización de los hallazgos en función del estadío de la enfermedad y se propone que el padecimiento afecta no solamente al nervio y neuroepitelio vestibular, sino también a otras estructuras neurológicas tanto periféricas como centrales


Subject(s)
Adolescent , Adult , Middle Aged , Humans , Male , Female , Vestibulocochlear Nerve Diseases/etiology , Vestibular Nerve/physiopathology , Nystagmus, Pathologic
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