Adult aqueductal stenosis presenting with fluctuating hearing loss and vertigo

Barlas, Orhan; Gökay, H; Turantan, M. İnan; Başerer, Nermin

doi:10.3171/jns.1983.59.4.0703

Cited by 22 publications

(18 citation statements)

References 11 publications

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“…There is some disagreement in the literature regarding CSF pressure in this context. For example, most authors feel that aqueductal stenosis produces CSF hypertension, perilymphatic hypertension, and perilymphatic hydrops [11,29]. Because the cochlear aqueduct opens into the cisternal subarachnoid space-distal to the obstruction-Gordon attributed hearing loss in these cases to cisternal CSF hypotension rather than hypertension [42,43].…”

Section: Formulation Of the Hydrodynamic Theorymentioning

confidence: 99%

“…Some authors report onset of hearing loss following CSF shunt placement [46,60,72,76,95,111,118]. In other cases, CSF shunting appears to have improved or resolved hearing loss [11,29,70,97,116,120].…”

Section: Introductionmentioning

confidence: 95%

“…Perilymphatic hypotension, resulting from low cisternal CSF pressure, may produce a relative endolymphatic hydrops [42,43,46,95]. Similarly, cisternal CSF hypertension may produce relative perilymphatic hydrops [11,29,97].…”

Section: Introductionmentioning

confidence: 99%

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Hearing loss in hydrocephalus: a review, with focus on mechanisms

Satzer

Guillaume

2015

Neurosurg Rev

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While neither hydrocephalus nor cerebrospinal fluid (CSF) shunt placement is traditionally considered in the differential diagnosis of hearing loss, there is substantial evidence that CSF circulation and pressure abnormalities can produce auditory dysfunction. Several indirect mechanisms may explain association between hydrocephalus and hearing loss, including mass effect, compromise of the auditory pathway, complications of prematurity, and genetically mediated hydrocephalus and hearing loss. Nevertheless, researchers have proposed a direct mechanism, which we term the hydrodynamic theory. In this hypothesis, the intimate relationship between CSF and inner ear fluids permits relative endolymphatic or perilymphatic hydrops in the setting of CSF pressure disturbances. CSF is continuous with perilymph, and CSF pressure changes are known to produce parallel perilymphatic pressure changes. In support of the hydrodynamic theory, some studies have found an independent association between hydrocephalus and hearing loss. Moreover, surgical shunting of CSF has been linked to both resolution and development of auditory dysfunction. The disease burden of hydrocephalus-associated hearing loss may be large, and because hydrocephalus and over-shunting are reversible, this relationship merits broader recognition. Hydrocephalic patients should be monitored for hearing loss, and hearing loss in a patient with shunted hydrocephalus should prompt further evaluation and possibly adjustment of shunt settings.

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Section: Formulation Of the Hydrodynamic Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 95%

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Hearing loss in hydrocephalus: a review, with focus on mechanisms

Satzer

Guillaume

2015

Neurosurg Rev

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“…Various hypotheses regarding the etiology of hearing disturbance in patients with hydrocephalus have been presented. 1,5,9,10) The inner ear contains two ducts, the ductus perilymphaticus (DPL) and the ductus endolymphaticus (DEL), that are connected to the intracranial region. The DPL forms a connection between the scala tympani of the cochlea and the subarachnoid space in the posterior cranial fossa to facilitate passage of perilymphatic fluid and CSF.…”

Section: Discussionmentioning

confidence: 99%

“…6) Hydrocephalus may cause hearing disturbance. 1,5,8,9) We treated a patient with achondroplasia complicated with crowding of the posterior fossa and obstructive hydrocephalus manifesting as hemifacial spasm and hearing disturbance. Ventriculoperitoneal shunting resolved the hydrocephalus, and the episodic hemifacial spasms disappeared and his hearing disturbance improved.…”

Section: Introductionmentioning

confidence: 99%

Disappearance of Hemifacial Spasm After Ventriculoperitoneal Shunting in a Patient With Achondroplasia-Case Report-

Yamashita

Matsumoto

Tamiya

et al. 2005

Neurol. Med. Chir.(Tokyo)

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A 15-year-old boy with achondroplasia developed right hemifacial spasm associated with headache, vomiting, and hearing disturbance. Computed tomography showed hydrocephalus. A ventriculoperitoneal shunt was placed. His hydrocephalus subsequently resolved, the hemifacial spasm and headache disappeared, and his hearing disturbance improved. The episodes of hemifacial spasm were probably related to a small posterior cranial fossa volume, the so-called crowding of the posterior fossa. Increased intracranial pressure due to hydrocephalus apparently contributed to further reduction in the posterior cranial fossa volume and led to the hemifacial spasms. In addition, his hearing disturbance may have been the result of dysfunction of the cochlear nerve due to the increase in intracranial pressure caused by hydrocephalus.

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Abnormalities of Cerebrospinal Fluid Production and Flow and Hydrocephalus

Leech¹

1989

The Cerebrospinal Fluid

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Adult aqueductal stenosis presenting with fluctuating hearing loss and vertigo

Cited by 22 publications

References 11 publications

Hearing loss in hydrocephalus: a review, with focus on mechanisms

Hearing loss in hydrocephalus: a review, with focus on mechanisms

Disappearance of Hemifacial Spasm After Ventriculoperitoneal Shunting in a Patient With Achondroplasia-Case Report-

Abnormalities of Cerebrospinal Fluid Production and Flow and Hydrocephalus

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