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DOI: 10.1055/s-0042-1746898
Regenerative capacity in acute vestibular neuropathia in the short-term interval
Authors
Background
Vertigo compensation of acute vestibular neuropathia (aVN) varies widely among individuals. The regenerative capacity of the different sensors is unclear. In this study, clinical and instrumental examination of all labyrinth substructures was performed in a short-term interval.
Methods
This prospective study examined 39 patients (22 ♂, 17 ♀, age: ∅55±18 years) with initial aVN and at after five weeks on average. Medical history, clinical examination and instrumental otoneurological diagnostics (caloric test (CT), video head thrust test of all semicircular canals (vHIT), rotatory pendulum test (RPT), cervical/ocular vestibular evoked myogenic potentials (c/oVEMPs)) were performed.
Results
Subjective partial improvement of vertigo was reported in 87% of the cases. On instrumental control a spontaneous nystagmus was still detectable in 50% and vestibulospinal examination remained abnormal in 54%. The horizontal canal showed a significant recovery in CT, but excitability was symmetrical in only 15.4% of the cases. The vKIT was unremarkable in 26.3% of the cases in the control. The RPT was compensated in 47%. The cVEMPs and the oVEMPS were reproducible in 24% of cases again.
Discussion
Within the first weeks after aVN, there is subjectively a symptom reduction. However, it is always necessary to distinguish between individually different regeneration of the semicircular canals, the otolith organs and central compensation. A clinical examination alone is not sufficient to identify residual dysfunction after aVN. The range of compensation requires differentiated otoneurological controls and rehabilitation individually adapted to the receptor deficit.
Publication History
Article published online:
24 May 2022
© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).
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