Research in Vestibular Science

Balance Problem after Cochlear Implantation: Eui Kyung Goh; Res Vestib Sci. 2014;13(3):63-67.

Abstract PDF: Cochlear implantations are very popularly performed for hearing rehabilitation of profound hearing loss recently. Postoperative dizziness is one of common complications of cochlear implantation, and one-third of recipients complaint of experience a dizziness after cochlear implantation. The patients should be informed about postimplantation vertigo symptoms. Aims of this article are to provide the basis for preoperative counseling, decrease of postoperative dizziness and postoperative vestibular therapy to cochlear implant recipients with literature review.

Benign Paroxysmal Positional Vertigo After Cochlear Implantation: Jong Won Park, Min Ju Park, Ye Won Lee, Sung Il Nam; Res Vestib Sci. 2013;12(1):35-38.

Abstract PDF: Cochlear implantation (CI) has enabled hearing rehabilitation of patients with severe hearing impairment for more than 20 years now. There have been reported that one possible complication of CI is the impairment of balance function with resulting vertigo symptoms. CI still implies trauma on the labyrinthine structures to allow the electrode system to be inserted into the cochlear turns. Benign paroxysmal positional vertigo is an uncommon development after CI. We experienced an 80-year-old woman who had immediate onset of vertigo after CI, which diagnosed in postoperative one day after CI. In postoperative videonystagmography, no spontaneous nystagmus was observed, but in right Dix-Hallpike, torsional nystagmus, where the top of the eye rotates towards the right ear in beating fashion. Vertigo improved after modified Epley maneuver. However there was one recurrence after 12 days later. The case is described along with a review of the literature.

Recurrent Vertigo after Cochlear Implantation: Kyu Hee Han, Sung Kwang Hong, Chang Myeon Song, Ja Won Koo; Res Vestib Sci. 2009;8(1):56-59.

Abstract PDF: Post-operative dizziness and vertigo have been variously reported from 30 to 60% after cochlear implantation. There have been reported that delayed vertigo is the most common type and characterized by similarities with dizziness in Meniere’s syndrome. Authors experienced a man who had delayed onset of vertigo, which developed six months after cochlear implantation on the left side. Postoperative left caloric response was decreased in both warm and cold stimulation. The direction of spontaneous nystagmus during spell was right side with torsional down beat and definite catch up saccades were observed during head thrust test on the plane of the left horizontal canal and posterior canal, which was resolved on the next day. These episodic and recurrent spells of vertigo might suggest that the hydropic changes of labyrinth corresponding to the pathology of Meniere’s disease occurred in this patient. Key Words: Vertigo; Cochlear implantation; Endolymphatic hydrops

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