Surgical Treatment of Vestibular Disorders

Albernaz, Pedro Luiz Mangabeira; Maia, Francisco Zuma e; Carmona, Sérgio; Cal, Renato Valério Rodrigues; Zalazar, Guillermo

doi:10.1007/978-3-030-11283-7_16

Cited by 1 publication

(2 citation statements)

References 29 publications

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“…Another type of DEH that is not completely agreeable is the bilateral DEH. The delayed vertigo may occur after deafness due to hydropic changes following vestibular obstruction of the Aqueduct [18][19][20]. Subsequently, the delayed vertigo following sensorineural deafness "DEH," and its etiology is described as following [21,22]: The mechanism of DEH is a sufficiently major labyrinthine insult to cause total deafness but preserve vestibular function to produce delayed atrophy or fibrous obliteration of the endolymphatic resorption system.…”

Section: Discussionmentioning

confidence: 99%

“…When medical treatments could not control vertigo attacks, surgical treatments are acceptable for ipsilateral cases; the most effective surgery is labyrinthectomy via transtympanic or trans-mastoid and trans-labyrinthine vestibular neurectomy. The pharmacological labyrinthectomy, particularly the intratympanic injection of gentamicin, is also effective [2, 20]. In some cases, conservative surgeries such as endolymphatic sac decompression and sacculo cochleostomy are preferable ere labyrinth degenerative surgeries.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of Patients with Delayed Endolymphatic Hydrops by Videonystagmography, Vestibular-Evoked Myogenic Potentials, and Electrocochleography

Yazdani

Rahmaty

Mousavi

et al. 2021

ORL

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Introduction: The categorization of delayed endolymphatic hydrops (DEH) based on the ear which produces vertigo may sometimes cause misdiagnosis. Objectives: The aim of this study was investigating the vestibular-evoked myogenic potentials (VEMPs), electrocochleography (ECoG), and videonystagmography (VNG) in cases with DEH to determine the ear that originates symptoms. Methods: In this cross-sectional study, 34 patients – 20 males and 14 females – with profound unilateral sensorineural deafness and vertigo attacks were recruited and evaluated by the ECoG, VNG, and VEMPs tests. Results: The average age was around 43; the summating potential/action potential was abnormal in 29.4% of patients in their normal auditive ear. In 32.4, 17.6, and 50% of cases with a deaf ear, absent, normal, and abnormal VEMPs results were sequentially observed, respectively. In normal-hearing ears, absent, normal, and abnormal VEMPs were observed in 23.5, 50, and 26.5%, respectively. In the normal-hearing ear, the distribution of abnormal VEMPs was 26.5%, and in the deaf ear, this parameter was abnormal in 50% of the opposite ear (p value = 0.00021). In the VNG test, among patients with a normal-hearing ear, results in 27 and 7 patients were sequentially normal and hypofunction. Conclusion and Significance: The probability of a hypofunction VNG test in a normal-hearing ear might be greater when the VEMPs results of the contralateral deaf ear are normal. In patients with a normal-hearing ear, the distribution of abnormal VEMPs in the contralateral deaf ear is greater, although the intact side may also manifest abnormality in VEMPs tests. The initial evaluation should begin in a deaf ear as well as for the normal-hearing ear ere utilizing ablation surgery.

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