VESTIBULOSPINAL REFLEX IN COCHLEAR IMPLANT RECIPIENTS
 
More details
Hide details
1
Audiology Unit, Department of Otolaryngology, Kasr-Al-Aini Faculty of Medicine, Cairo University, Egypt
2
Audiology Unit, Police Authority Hospital, Cairo, Egypt
CORRESPONDING AUTHOR
Abeir O. Dabbous   

Abeir O. Dabbous, Audiology Unit, Department of Otolaryngology, Kasr-Al-Aini Faculty of Medicine, Cairo University, Egypt, e-mail: abeird@yahoo.com
Publication date: 2020-04-20
 
J Hear Sci 2011;1(3):76–79
 
KEYWORDS
ABSTRACT
This is a cross-sectional study that comprised 20 adults who underwent unilateral cochlear implantation, compared to 20 wellmatched controls. The aim was to assess balance function in CI recipients using sensory organization test (SOT) of computerized dynamic posturography (CDP) and to compare the findings with vestibular evoked myogenic potential (VEMP) and to correlate findings of these 2 tests with the patients’ imbalance symptoms. Vertigo was present in 5/20 cases. Eleven had postoperative dizziness. Thirteen out of 20 cases had SOT abnormalities, 10 of which had vestibular ratio abnormality. The cases had statistically significant lower scores than their controls in SOT conditions 4, 5, 6, composite score, vestibular, visual & visual preference ratios. VEMP response was preserved bilaterally in 11/20, out of which 5 had abnormal inter-aural amplitude difference, which was statistically significantly lower than the controls. The remaining 9 had lost VEMP irrespective of the tested side. Statistically significant differences in p13 latency were found comparing implanted and nonimplanted ears, as well as comparing implanted ears with the controls. There was no statistically significant correlation between patients’ age, duration of sensory deprivation or implant duration with any of the posturographic or VEMP parameters. Both tests were not correlated. Balance dysfunction is not uncommon in CI recipients post-operatively, requiring vestibular rehabilitation. We recommend adding CDP and VEMP to the routine pre-and post surgical testing.
 
REFERENCES (14)
1.
Kluenter HD, Lang-Roth R, Guntinas-Lichius O: Static and dynamic postural control before and after cochlear implantation in adult patients. Eur Arch Otorhinolaryngol, 2009; 10: 1521–25.
 
2.
Welgampola MS: Evoked potential testing in neuro-otology. Curr Opin Neurol, 2008; 21(1): 29–35.
 
3.
Basta D, Todt I, Goepel F, Ernst A: Loss of saccular function after cochlear implantation: the diagnostic impact of intracochlear electrically elicited vestibular evoked myogenic potentials; Audiol Neurotol, 2008; 13: 187–92.
 
4.
Enticott JC, Tari S, Koh SM et al: Cochlear Implant and Vestibular Function. Oto Neurotol, 2006; 27: 824–30.
 
5.
Bonucci AS, Filho OA, Mariotto LD et al: Vestibular function in cochlear implant users. Braz J Otorhinolaryngol, 2008; 74(2): 273–78.
 
6.
Buchman CA, Joy J, Hodges A et al: Vestibular Effects of Cochlear Implantation. Laryngoscope, 2004; 114 (Suppl. 103): 1–22.
 
7.
Fina M, Skinner M, Goebel JA et al: Vestibular dysfunction after cochlear implantation. Otol Neurotol, 2003; 24(2): 234–42.
 
8.
Abramides PA, Bento RF, Bitar RSM et al: How Can the Cochlear Implant Interfere with the Vestibular Function? Intl Arch Otorhinolaryngol, 2009; 13(2): 195–200.
 
9.
Schwab B, Durisin M, Kontorinis G: Investigation of Balance Function Using Dynamic Posturography under ElectricalAcoustic Stimulation in Cochlear Implant Recipients. Int J Otolaryngol, 2010; 2010: 978594, Published online 2010 June 28. doi: 10.1155/2010/978594.
 
10.
Krause E, Wechtenbruch J, Rader T, Gürkov R: Influence of cochlear implantation on sacculus function. Otolaryngol Head Neck Surg, 2009; 140(1): 108–13.
 
11.
Suarez H, Angeli S, Suarez A et al: Balance sensory organization in children with profound hearing loss and cochlear implants. Int J Pediatr Otorhinolaryngol, 2007; 71(4): 629–37.
 
12.
Cushing SL, Chia R, James AL et al: A test of static and dynamic balance function in children with cochlear implants: the vestibular Olympics. Arch Otolaryngol Head Neck Surg, 2008; 134 (1): 34–38.
 
13.
Melvin TN, Migliaccio A, Carey JP, Santina CCD: The Effects of Cochlear Implantation on Vestibular Function. Otorhinolaryngol Head Neck Surg, 2008; 139(Suppl.1): 6.
 
14.
Zhou G, Kenna MK, Stevens K, Licameli G: Assessment of Saccular Function in Children with Sensorineural Hearing Loss. Arch Otolaryngol Head Neck Surg, 2009; 135(1): 40–44.