title: Effects of Unilateral Cochlear Implantation on Balance Control and Sensory Organization in Adult Patients with Profound Hearing Loss.
abstract: Many studies were interested in the consequence of vestibular dysfunction related to cochlear implantation on balance control. This pilot study aimed to assess the effects of unilateral cochlear implantation on the modalities of balance control and sensorimotor strategies. Posturographic and vestibular evaluations were performed in 10 patients (55 ± 20 years) with profound hearing loss who were candidates to undergo unilateral multichannel cochlear implantation. The evaluation was carried out shortly before and one year after surgery. Posturographic tests were also performed in 10 age-matched healthy participants (63 ± 16 years). Vestibular compensation was observed within one year. In addition, postural performances of the patients increased within one year after cochlear implantation, especially in the more complex situations, in which sensory information is either unavailable or conflicting. Before surgery, postural performances were higher in the control group compared to the patients' group. One year after cochlear implantation, postural control was close to normalize. The improvement of postural performance could be explained by a mechanism of vestibular compensation. In addition, the recovery of auditory information which is the consequence of cochlear implantation could lead to an extended exploration of the environment possibly favoring the development of new balance strategies.
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, 29 avenue du Maréchal de Lattre de Tassigny, 54035 Nancy Cedex, France ; Faculty of Medicine, Université de Lorraine, 9 avenue de la Forêt de Haye, CS 50184, 54505 Vandoeuvre-lès-Nancy, France ; EA 3450 DevAH, Development, Adaptation and Disadvantage, Faculty of Medicine, Université de Lorraine, CS 50184, 54505 Vandoeuvre-lès-Nancy, France.
authors.forename: Cécile
authors.initials: C
authors.lastname: Parietti-Winkler
authors.affiliation: EA 3450 DevAH, Development, Adaptation and Disadvantage, Faculty of Medicine, Université de Lorraine, CS 50184, 54505 Vandoeuvre-lès-Nancy, France ; Sports Medicine Research Laboratory, Luxembourg Institute of Health, 1460 Luxembourg, Luxembourg.
authors.forename: Alexis
authors.initials: A
authors.lastname: Lion
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, 29 avenue du Maréchal de Lattre de Tassigny, 54035 Nancy Cedex, France.
authors.forename: Bettina
authors.initials: B
authors.lastname: Montaut-Verient
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, 29 avenue du Maréchal de Lattre de Tassigny, 54035 Nancy Cedex, France.
authors.forename: Rémy
authors.initials: R
authors.lastname: Grosjean
authors.affiliation: Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, 29 avenue du Maréchal de Lattre de Tassigny, 54035 Nancy Cedex, France ; EA 3450 DevAH, Development, Adaptation and Disadvantage, Faculty of Medicine, Université de Lorraine, CS 50184, 54505 Vandoeuvre-lès-Nancy, France ; UFR STAPS, Faculty of Sport Sciences, Université de Lorraine, 30 rue du Jardin Botanique, CS 30156, 54603 Villers-lès-Nancy, France.
authors.forename: Gérome C
authors.initials: GC
authors.lastname: Gauchard
mesh_terms: D000328:Adult; D000368:Aged; D019929:Cochlear Implantation; D005260:Female; D006319:Hearing Loss, Sensorineural / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D004856:Postural Balance / Q000502:physiology*; D014724:Vestibular Function Tests