Semicircular Canals
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Zuma Modified Maneuver as a Treatment to Geotropic Lateral Semicircular Canal Benign Paroxysmal Positional Vertigo
Abstract Introduction Benign Paroxysmal Positional Vertigo (BPPV) is the most common vestibular disorder, resulting from detached otoliths that migrate to one of the semicircular canals - canalolithiasis - or one of the cupulas - cupulolithiasis. The present study is related to lateral canal BPPVs, which may be either geotropic or apogeotropic. The geotropi
Int. Arch. Otorhinolaryngol.. Publicado em: 2021-04
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2. Importance of Vestibulo-ocular Reflex Gain and Refixation Saccade Analysis in Individuals with Auditory Neuropathy Spectrum Disorder
Abstract Introduction Auditory neuropathy spectrum disorder (ANSD) features the presence of otoacoustic emissions, poor speech identification score and absent auditory brainstem response. Objective The present study was designed to evaluate the functioning of all six semicircular canals in individuals with ANSD and to compare it with those of normalheari
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-06
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3. Avaliação do efeito da idade sobre a função vestibular por meio do Teste do Impulso Cefálico (v-HIT)
RESUMO Objetivo avaliar o efeito da idade sobre o ganho do reflexo vestíbulo-ocular por meio do v-HIT. Métodos estudo transversal, analítico, observacional, realizado com 90 indivíduos sem alterações otoneurológicas autorrelatadas, que foram submetidos ao exame v-HIT, com o intuito de avaliar o ganho dos canais semicirculares e a velocidade dos impu
Audiol., Commun. Res.. Publicado em: 13/12/2019
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4. Relation between Ossicular Erosion and Destruction of Facial and Lateral Semicircular Canals in Chronic Otitis Media
Abstract Introduction Chronic otitis media can cause multiple middle ear pathogeneses. The surgeon should be aware of relation between ossicular chain erosion and other destructions because of the possibility of complications. Objective This study aimed to investigate the rates of ossicular erosion in cases of patients with and without facial nerve canal
Int. Arch. Otorhinolaryngol.. Publicado em: 2017-09
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5. The Video Head Impulse Test in a Case of Suspected Bilateral Loss of Vestibular Function
Introduction A patient who had no symptoms suggestive of bilateral loss of vestibular function presented no responses in rotational and caloric tests. Objectives To demonstrate the importance of the video head impulse test in neurootologic diagnosis. Resumed Report This patient had a neuro-otologic evaluation and presented no responses in torsion swing
Int. Arch. Otorhinolaryngol.. Publicado em: 2016-03
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6. Intracochlear Schwannoma: Diagnosis and Management
Introduction Schwannomas of the eighth cranial nerve are benign tumors that usually occur in the internal auditory canal or the cerebellopontine angle cistern. Rarely, these tumors may originate from the neural elements within the vestibule, cochlea, or semicircular canals and are called intralabyrinthine schwannomas. Intracochlear schwannomas (ICSs) repres
Int. Arch. Otorhinolaryngol.. Publicado em: 2014-09
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7. Vestibular evoked myogenic potentials and digital vectoelectronystagmography's study in patients with benign paroxysmal positional vertigo
INTRODUCTION: Benign Paroxysmal Positional Vertigo (BPPV) is a very common vestibular disorder characterized by brief but intense attacks of rotatory vertigo triggered by simple rapid movement of the head. The integrity of the vestibular pathways can be assessed using tests such as digital vectoelectronystagmography (VENG) and vestibular evoked myogenic pote
Int. Arch. Otorhinolaryngol.. Publicado em: 2013-06
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8. Eletrofisiologia da audição em indivíduos com vestibulopatias periféricas pré e pós reabilitação vestibular / Electrophysiological evaluation of hearing in individuals with peripheral vestibular disorders before and after vestibular rehabilitation therapy
INTRODUCTION: The auditory evoked potentials assess the neuroelectrical activity of the auditory pathway from the auditory nerve to the cerebral cortex. The vectoelectronystagmography analyzes the semicircular canals and/or inferior vestibular nerve, checking peripheral or central vestibular involvement. The vestibular rehabilitation therapy consists in acti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2011
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9. DO EQUILÍBRIO EM PACIENTES COM VERTIGEM POSICIONAL PAROXÍSTICA BENIGNA / THE BALANCE IN PACIENTS WITH BENIGN POSITIONAL PAROXYSMAL VERTIGO BENIGN PAROXYSTIC
Introdução: A tontura é observada entre 5 e 10% da população mundial, atingindo ambos os gêneros. Pode ser de dois tipos: rotatória (vertigem) ou não rotatória. As crises de tontura podem prejudicar a vida do paciente, levando à redução do convívio social e dificultando as atividades de vida diária. O tipo de tontura rotatória mais comum é a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/03/2011
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10. Geometry of the semicircular canals and extraocular muscles in rodents, lagomorphs, felids and modern humans
The vestibulo-ocular reflex (VOR) exacts compensatory movements of the extraocular muscles in response to stimulation of the semicircular canals to allow gaze fixation during head movements. In this study, the spatial relationships of these muscles and canals were investigated to assess their relative alignments in mammalian species commonly used in studies
Blackwell Science Inc.
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11. The Nuclear Receptor Nor-1 Is Essential for Proliferation of the Semicircular Canals of the Mouse Inner Ear
Nor-1 belongs to the nur subfamily of nuclear receptor transcription factors. The precise role of Nor-1 in mammalian development has not been established. However, recent studies indicate a function for this transcription factor in oncogenesis and apoptosis. To examine the spatiotemporal expression pattern of Nor-1 and the developmental and physiological con
American Society for Microbiology.
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12. RECENT INVESTIGATIONS ON THE SEMICIRCULAR CANALS AND THEIR CLINICAL APPLICATIONS