142. Occupational exposure to chemicals and hearing

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Arch. Otolaryng. Head Neck Surg. 115: 54-58, 1989.

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Large vestibular aqueduct syndrome (LVAS) is characterised by sensorineural hearing loss caused by a malformation of the structures of the inner ear. This is one of the most frequent anomalies of the inner ear, leading to hearing loss in childhood [5, 15, 41, 42, 46]. Large vestibular aqueduct syndrome (LVAS) is thought to be one of the most common congenital causes of sensorineural hearing loss (SNHL). It is usually sudden after head trauma or progressive during childhood. Cochlear implantation is the surgical effective choice of LVAS if marked hearing loss occurred. 1 article features images from this case When a vestibular aqueduct is larger than normal, it is known as a large vestibular aqueduct (LVA) or by the term used here, enlarged vestibular aqueduct (EVA).

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[9] Lin CY, Lin SL, Kao CC, Wu JL. The remediation of hearing deterioration in children with large vestibular aqueduct syndrome. the syndrome. Key Words: Congenital malformation, large vestibular aqueduct (LVA), sensorineural hearing loss T he occurrence of a large vestibular aque-duct (LVA) is a relatively rare event that affects both cochlear and vestibular sys- tems.

Large vestibular aqueduct syndrome

Offentlig grupp för Enlarged Vestibular Aqueduct Support

The large vestibular aqueduct (LVA) is reported to be the most common inner ear anomaly identified on computed tomograms (CTs) in children with sensorineural hearing impairment (SNHI). 1 As such, hearing impairment is frequently attributed to the presence of an LVA. 2 The description of LVA syndrome in 1978, which included associated inner ear anomalies, 3 led to an interest in the LVA as an Large vestibular aqueduct syndrome First described by Valvassori and Clemis in 1978 50 cases out of 3,700 tomograms, or 1.4% congenital hearing loss and vestibular symptoms enlarged vestibular aqueducts from 1.5– 8.0 mm 50% of the individuals with LVA were children and teenagers female to male ratio was 3:2 Large vestibular aqueduct syndrome is characterized as bony canals in the inner ear extending into the brain. The enlarged aqueducts are associated with hearing loss. Common symptoms reported by people with large vestibular aqueduct syndrome Discussion.

Kathleen Johnson, MS Audiologist.
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Pathogenesis of the large vestibular aqueduct syndrome probably stems from an early derangement in the embryogenesis of the endolymphatic duct. This anomaly appears to be relatively common in children with sensorineural hearing loss and is probably significantly underdiagnosed.

Enlarged Vestibular Aqueducts and Childhood Hearing Loss. Vestibular Tags.
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Offentlig grupp för Enlarged Vestibular Aqueduct Support

For these single audiograms and vestibular examinations. Cochlear aqueduct patent," Acta Otolaryngol 110, 386-393. 21 Inneröra Patologi Labyrint/cochlea-dysplasier LVAS (Large vestibular aqueduct syndrome) Otoscleros Labyrintit inkl ossifierande Intralabyritärt schwannom. ”Enlarged vestibular aqueduct syndrom”(EVAS) – patologi,dia- gnostik och behandling.


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In: Neuroradiology,2001, 2001, 81-81. Page visits in  3651 dagar, Large vestibular aqueduct syndrome.