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Unilateral hearing loss in children with shunt-treated hydrocephalus.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Spirakis, Susan E. Hurley, Raymond M. |
| Copyright Year | 2003 |
| Abstract | This study investigated the characteristics of hearing loss in children with ventriculoperitoneal (VP) shunted hydrocephalus. Twelve hydrocephalic children with patent VP shunts participated. The etiology of the hydrocephalus was either intraventricular hemorrhage or spina bifida. Audiometric examination included pure-tone air conduction thresholds, tympanometry, contralateral and ipsilateral acoustic reflex thresholds (ARTs), and distortion product otoacoustic emissions (DPOAEs). A unilateral, high-frequency, cochlear hearing loss was found in the ear ipsilateral to the shunt placement in 10 (83%) of the 12 shunt-treated hydrocephalic children. No hearing loss was observed in the ear contralateral to shunt placement. Based on the pure-tone audiometric findings, coupled with the decrease in DPOAE amplitude in the shunt ear, the hearing loss appears to be cochlear in nature. We suggest that cochlear hydrodynamics are disrupted as the result of reduced perilymph pressure, a consequence of cerebrospinal fluid (CSF) reduction due to the combined effects of a patent shunt and a patent cochlear aqueduct. In addition, a concomitant brain stem involvement is evidenced in the ART pattern, possibly produced by the patent shunt draining the CSF from the subdural space, resulting in cranial base hypoplasia. |
| Starting Page | 1528 |
| Ending Page | 1531 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.audiology.org/sites/default/files/journal/JAAA_14_09_05.pdf |
| Alternate Webpage(s) | https://www.audiology.org/sites/default/files/journal/JAAA_14_09_05.pdf |
| PubMed reference number | 14708839v1 |
| Volume Number | 14 |
| Issue Number | 9 |
| Journal | Journal of the American Academy of Audiology |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Bone structure of cranium Brain Stem Cerebral aqueduct Cerebrospinal Fluid Cochlear structure Emission - Male genitalia finding Foramen Ovale, Patent Hematoma, Epidural, Cranial Hydrocephalus Intraventricular hemorrhage Neurofibromatosis 2 Otoacoustic Emissions, Spontaneous Reflex action Reflex, Acoustic Sensorineural Hearing Loss (disorder) Sensory hearing loss Spina Bifida Subdural space Tympanometry hearing impairment |
| Content Type | Text |
| Resource Type | Article |
