Enlarged Vestibular Aqueduct in Pediatric SNHL

Dewan, Karuna; Lieu, Judith C.

doi:10.1016/j.otohns.2008.05.533

Cited by 2 publications

(3 citation statements)

References 15 publications

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“…Otosclerotic foci were localized within the otic capsule and were restricted to fenestral and retrofenestral lesions [11]. Six places are most frequently affected by OS; ante fenestrum, round window, cochlear promontory, cochlear apex, basal turn of cochlea, and posterior fenestrum [12].…”

Section: Hrct Studymentioning

confidence: 99%

Correlation between audiological and radiological findings in otosclerosis: randomized clinical study

Abd-Elhmid,

Abish,

Zaghloul

et al. 2024

Egypt J Otolaryngol

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Background The standard methods for diagnosing otosclerosis (OS) include clinical and audiological testing. Radiologic imaging continues to expand with use in diagnosis, staging, surgery planning, and outcomes. Objective To determine if high resolution computed tomography (HRCT) imaging advances to the audiological findings in the diagnosis of otosclerosis. Methods This prospective randomized controlled study was conducted from June 2018 to June 2022. Fifty patients with OS who divided into two subgroups: group 2a, 50 early OS ears, and group 2b, 35 ears with late OS. The controls includes 50 individuals who have healthy ears (group 1). All participants had otorhinolaryngology examination, audiological evaluation and HRCT imaging. Results Early OS had higher air conduction thresholds than control, and late OS had considerably higher air conduction thresholds than either the early or control subjects (p < 0.001). Early OS patients had higher bone conduction threshold (BCT) than control, while late OS patients had higher BCT than both early and control subjects (p < 0.001). In early and late OS, there is a significant association between bone conduction of 11 dB and 21.6 dB, respectively (P = 0.004), and a significant air–bone gap of 25.5 and 31 dB, respectively (P = 0.03). HRCT showed a sensitivity of 75% and high specificity 92% with accuracy 83% in early OS and sensitivity of 78% and high specificity 94% with accuracy 86% in late OS. Conclusion HRCT is a more sensitive and specific diagnostic tool for OS than audiometry. HRCT could discriminate between early and late OS, suggesting that it can be used to do so with a high degree of confidence.

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Section: Hrct Studymentioning

confidence: 99%

Correlation between audiological and radiological findings in otosclerosis: randomized clinical study

Abd-Elhmid,

Abish,

Zaghloul

et al. 2024

Egypt J Otolaryngol

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“…However, it is believed that they maintain a proper composition, volume and osmolality of the fluids in the inner ear [27]. The diameter of the vestibular aqueduct in a healthy person is 0.4-1 mm [12,28,49], while in patients with LVAS it is at least two times higher (> 1.5 mm) ( Fig. 1) [45,47].…”

Section: Introductionmentioning

confidence: 99%

“…It is typically manifested by uni-or bilateral hearing loss of a mixed or sensorineural type. Hearing loss usually appears suddenly, and the factors that trigger it include: head injury (fall, strike with a ball), physical exertion, sudden change of pressure (for example during flying a plane) or infection of upper airways [3,12,14,22,34]. Airbone gap in patients with LVAS can be erroneously interpreted as a disturbance of ventilation of the inner ear or stiffening of the ossicular chain, having a similar clinical course to otosclerosis.…”

Section: Introductionmentioning

confidence: 99%

Bilateral large vestibular aqueduct syndrome in an 11-year-old boy. Radiological and clinical findings

2015

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Clinical observations supplemented with imaging examination show that the large vestibular aqueduct syndrome (LVAS) is a rare developmental anomaly of the inner ear, which leads to hearing loss. The authors present a case history, results of imaging examination (high resolution CT, MRI), results of hearing acuity examinations (tonal audiometry, otoacoustic emissions, brainstem auditory evoked potentials) and results of balance examinations (videonystagmography) in an 11-year-old boy suffering from deep mixed progressive hearing loss of the right ear due to head trauma. The aim of this paper is to specify the most typical clinical, radiological and anatomopathological manifestations of this pathology of the inner ear. The authors describe the diagnostic and identification difficulties associated with the mixed hearing loss observed in this case. The article also discusses the child's activity limitations, which should be taken into account once diagnosis of this rare labyrinthine pathology is established.

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Enlarged Vestibular Aqueduct in Pediatric SNHL

Cited by 2 publications

References 15 publications

Correlation between audiological and radiological findings in otosclerosis: randomized clinical study

Correlation between audiological and radiological findings in otosclerosis: randomized clinical study

Bilateral large vestibular aqueduct syndrome in an 11-year-old boy. Radiological and clinical findings

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