Results 41 to 50 of about 1,903,211 (202)
Labyrinthine concussion: Historic otopathologic antecedents of a challenging diagnosis
Abstract Objective The term “labyrinthine concussion” has evolved to mean audiovestibular dysfunction in the absence of a temporal bone fracture (TBF). Despite a multitude of case descriptions of labyrinthine concussion, the precise pathophysiology remains poorly understood. Herein, we explore the historical otopathologic underpinnings of the diagnosis
Ryan A. Bartholomew+8 more
wiley +1 more source
Retinitis pigmentosa: evaluation of the vestibular system with cervical and ocular vestibular evoked myogenic potentials and the video head impulse test [PDF]
OBJECTIVE: Retinitis pigmentosa (RP) represents a group of inherited disorders in which abnormalities of the photoreceptors lead to progressive visual loss.
GAGLIARDI, SILVIA+6 more
core +1 more source
Subjective visual vertical with the bucket method in Brazilian healthy individuals
INTRODUCTION: The capacity of a healthy individual to estimate the true vertical in relation to the Earth when a fluorescent line is aligned in a completely dark room is called the subjective visual vertical.
Maristela Mian Ferreira+4 more
doaj +1 more source
This study examines vestibular degeneration following head trauma, comparing cases with and without fractures. Histopathological analysis of 26 temporal bones showed more severe damage in nonfracture cases, particularly in Scarpa's ganglion cells and vestibular hair cells.
Tomotaka Shimura+6 more
wiley +1 more source
Abstract The killifish genus Aphaniops consists of nine species distributed in Eastern Africa and the Middle East. However, distinguishing these species from each other based on morphological traits is challenging. Here we investigate the utility of otoliths (sagittae) in distinguishing between A. dispar, A. ginaonis, A. hormuzensis, A.
Eleni A. Charmpila+2 more
wiley +1 more source
Modelling the otolith membrane using boundary-fitted coordinates
Abstract This paper describes a method for modelling biological processes that involve an irregular object. The process is assumed to be described by a system of partial differential equations in a planar region. The techniques described are specifically designed for irregular regions.
Stanly Steinberg+3 more
openaire +2 more sources
Prognosis of asymptomatic endolymphatic hydrops in healthy volunteers: A five‐year cohort study
Approximately 7% of healthy subjects showed asymptomatic EH by means of the inner ear MRI. Out of these subjects, 25.0% have kept EH and subsequently developed to be typical types of Meniere's disease within the next 5 years. Abstract Background This study aimed to clarify the prognosis of asymptomatic endolymphatic hydrops (EH) in healthy volunteers ...
Takahiro Kimura+7 more
wiley +1 more source
A variable gravity model of the otolith membrane
Abstract This paper describes a finite difference model of the otolith membrane which allows the acceleration due to gravity to vary, thus simulating conditions of gravity on the lunar and planetary surfaces. The differential coefficients of the second-order system of elliptic partial differential equations governing the steady state displacements ...
openaire +2 more sources
Is activation of the vestibular system by electromagnetic induction a possibility in an MRI context?
Abstract In recent years, an increasing number of studies have discussed the mechanisms of vestibular activation in strong magnetic field settings such as occur in a magnetic resonance imaging scanner environment. Amid the different hypotheses, the Lorentz force explanation currently stands out as the most plausible mechanism, as evidenced by ...
Nicolas Bouisset+4 more
wiley +1 more source
Objective To investigate the therapeutic efficacy of the canalith repositioning maneuver in benign paroxysmal positional vertigo (BPPV). Methods The modified Epley procedure, Semont maneuver and Barbecue maneuver were applied in 48 cases of BPPV ...
Jun LAN
doaj