Research in Vestibular Science

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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Abstract 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.

A Case of Early Developed Labyrinthine Fistula after Canal Wall Down Mastoidectomy: Sung Yong Choi, Yee Hyuk Kim; Res Vestib Sci. 2016;15(3):89-93. Published online September 15, 2016; DOI: https://doi.org/10.21790/rvs.2016.15.3.89

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Labyrinthine fistula refers to a condition caused by an abnormal connection between the inner ear and surrounding structures. Most cases of that occur as a result of a complication brought about by cholesteatoma. It may also be generated by long repeated infections of a mastoid cavity that has been exposed to the outside after canal wall down mastoidectomy (CWDM). The infection is usually repeated for several years or decades after surgery. Therefore, labyrinthine fistula after CWDM is known as a late complication. In this case, labyrinthine fistula occurred in two months after surgery due to postoperative infection. Although cholesteatoma was removed after CWDM and the horizontal semicircular canal (HSCC) was not damaged during the operation, this labyrinthine fistula was thought to develop very early after surgery. Two months after surgery, the patient complained of dizziness, we identified the opened bony labyrinth and damaged endosteum of the HSCC in the patient.

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A Case of Labyrinthitis Ossificans Presenting as an Intractable Benign Paroxysmal Positional Vertigo
Dong Hyun Kim, Jae Moon Sung, Hwi Kyeong Jung, Chang Woo Kim
Research in Vestibular Science.2017; 16(3): 92. CrossRef

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