Vestibular function after cochlear implantation: A test battery and case-by-case approach.
VEMP
caloric testing
cochlear implants
vHIT
vestibular
Journal
Laryngoscope investigative otolaryngology
ISSN: 2378-8038
Titre abrégé: Laryngoscope Investig Otolaryngol
Pays: United States
ID NLM: 101684963
Informations de publication
Date de publication:
Jun 2020
Jun 2020
Historique:
received:
26
03
2020
revised:
01
05
2020
accepted:
22
05
2020
entrez:
30
6
2020
pubmed:
1
7
2020
medline:
1
7
2020
Statut:
epublish
Résumé
The purpose of this study was to assess the effects of cochlear implantation on the functional integrity of the horizontal semicircular canal using multiple methodologies, and to discuss and highlight the limitations of using isolated vestibular tests to assess vestibular function in surgical ears. Ten cochlear implant patients were consented to undergo a preoperative and 3-month postoperative vestibular assessment. The horizontal semicircular canal (SCC) was assessed using three different vestibular test measures that assess function using different stimuli and at different frequencies ranges: caloric testing, sinusoidal harmonic acceleration testing in the rotary chair, and video head impulse testing in the plane of the horizontal SCC. Data was analyzed using different methods: descriptive, statistical, and by an examination of individual case studies. Each analysis method yielded a different interpretation. Statistical analysis showed no significant group mean differences between baseline pre-op vestibular test results and 3-month post-op vestibular test results. Descriptive analysis showed 30% of individuals presented with postoperative abnormal vestibular testing findings. A case study examination showed that only one patient presented with a post-op decrease in vestibular function in the implanted ear. There are several limitations of conventional vestibular testing in postsurgical cochlear implant patients. A test-battery approach, including case history, and test interpretation made on a case-by-case basis is needed to determine whether the patient has undergone vestibular damage, is at risk for falling, or in need of further management. 2b individual cohort study.
Identifiants
pubmed: 32596501
doi: 10.1002/lio2.413
pii: LIO2413
pmc: PMC7314491
doi:
Types de publication
Journal Article
Langues
eng
Pagination
560-571Informations de copyright
© 2020 The Authors. Laryngoscope Investigative Otolaryngology published by Wiley Periodicals, Inc. on behalf of The Triological Society.
Déclaration de conflit d'intérêts
The authors report no financial or nonfinancial conflicts of interest.
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