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3 "Perilymphatic fistula"
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Case Reports
A Case of Sensorineural Hearing Loss and Vertigo during Epidural Nerve Block
Byeong Min Lee, Jin hong Noh, Seong Ki Ahn, Hyun Woo Park
Res Vestib Sci. 2018;17(4):170-174.   Published online December 21, 2018
DOI: https://doi.org/10.21790/rvs.2018.17.4.170
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AbstractAbstract PDF
Epidural anesthesia has significantly advanced in neuraxial anesthesia and analgesia. It is used for surgical anaesthesia and treatment of chronic pain. Hearing loss during or after epidural anesthesia is rare, and it is known to occur by the change of the intracranial pressure. Cerebrospinal fluid is connected with perilymph in the cochlear and vestibule that is important to hearing and balance. If the intracranial pressure is abruptly transferred to the inner ear, perilymph can be leak, that called perilymphatic fistula, dizziness, and hearing loss can occur suddenly. We report a 65-year-old woman who presented with acute onset dizziness and hearing loss during the epidural nerve block for back pain, wherein we speculated a possibility of perilymphatic fistula as the mechanism of hearing loss and dizziness. The mechanism of dizziness and hearing loss was suspected with perilymphatic fistula.
Delayed Positional Vertigo after Stapes Surgery
Jin Woo Park, Joon Hee Lee, Mee Hyun Song, Dae Bo Shim
Res Vestib Sci. 2015;14(4):147-151.
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  • 129 Download
AbstractAbstract PDF
Postoperative vertigo can occur after stapes surgery in approximately 5% of the patients, which more commonly presents immediately after surgery rather than in the delayed period. Isolated delayed vertigo after stapes surgery is commonly related to perilymphatic fistula. Herein we report a 36-year-old female patient who developed positional vertigo 18 days after stapes surgery demonstrating severe geotropic horizontal positional nystagmus on both sides during supine roll test. This patient was eventually diagnosed as the horizontal semicircular canal benign paroxysmal positional vertigo (BPPV) on the left side. This is a rare case of delayed vertigo following stapes surgery caused by BPPV rather than perilymphatic fistula.
Traumatic Perilymphatic Fistula Presenting with Direction-Changing Positional Nystagmus
Ja Won Koo, Si Whan Kim, Ji Soo Kim, Sung Wha Hong
J Korean Bal Soc. 2004;3(1):173-176.
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  • 28 Download
AbstractAbstract PDF
Diagnosis of perilymphatic fistula (PLF) is considered in the patient presenting hearing loss associated with ataxia after penetrating injury of the tympanic membrane. PLF accompanies mixed type hearing loss and paralytic nystagmus. If audiovestibular symptoms and signs are not definite for those patients, in whom PLF is highly suspicious, they can be induced by affected ear down position. The direction of nystagmus induced by position change was reported either toward or away from the affected ear. But the direction changing nature has not been noted in the previous literature. We report on a case of traumatic PLF presented with direction changing positional nystagmus and discuss the possible mechanism involved in this case. Key Words : Positional nystagmus, Perilymphatic fistula

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