title: Hearing performance as a predictor of postural recovery in cochlear implant users.
abstract: OBJECTIVE
  This study aimed to evaluate if hearing performance is a predictor of postural control in cochlear implant (CI) users at least six months after surgery.
  
  
  METHODS
  Cross-sectional study including (CI) recipients with post-lingual deafness and controls who were divided into the following groups: nine CI users with good hearing performance (G+), five CI users with poor hearing performance (G-), and seven controls (CG). For each patient, computerized dynamic posturography (CDP) tests, a sensory organization test (SOT), and an adaptation test (ADT) were applied as dual task performance, with first test (FT) and re-test (RT) on the same day, including a 40-60min interval between them to evaluate the short-term learning ability on postural recovery strategies. The results of the groups were compared.
  
  
  RESULTS
  Comparing the dual task performance on CDP and the weighted average between all test conditions, the G+ group showed better performance on RT in SOT4, SOT5, SOT6, and CS, which was not observed for G- and CG. The G- group had significantly lower levels of short-term learning ability than the other two groups in SOT5 (p=0.021), SOT6 (p=0.025), and CS (p=0.031).
  
  
  CONCLUSIONS
  The CI users with good hearing performance had a higher index of postural recovery when compared to CI users with poor hearing performance.
authors.affiliation: Pontifícia Universidade Católica de Campinas (PUC-Campinas), Departamento de Otorrinolaringologia, Campinas, SP, Brazil.
authors.forename: Mario Edvin
authors.initials: ME
authors.lastname: Greters
authors.affiliation: Universidade de São Paulo (FMUSP), Faculdade de Medicina, Departamento de Otorrinolaringologia, São Paulo, SP, Brazil. Electronic address: roseli.bittar@hc.fm.usp.br.
authors.forename: Roseli Saraiva Moreira
authors.initials: RS
authors.lastname: Bittar
authors.affiliation: Universidade de São Paulo (FMUSP), Faculdade de Medicina, Departamento de Otorrinolaringologia, São Paulo, SP, Brazil.
authors.forename: Signe Schuster
authors.initials: SS
authors.lastname: Grasel
authors.affiliation: Universidade de São Paulo (FMUSP), Faculdade de Medicina, Departamento de Otorrinolaringologia, São Paulo, SP, Brazil.
authors.forename: Jeanne
authors.initials: J
authors.lastname: Oiticica
authors.affiliation: Universidade de São Paulo (FMUSP), Faculdade de Medicina, Departamento de Otorrinolaringologia, São Paulo, SP, Brazil.
authors.forename: Ricardo Ferreira
authors.initials: RF
authors.lastname: Bento
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D003054:Cochlear Implants; D003430:Cross-Sectional Studies; D003638:Deafness / Q000503:physiopathology / Q000534:rehabilitation*; D004244:Dizziness / Q000503:physiopathology / Q000534:rehabilitation; D005260:Female; D006320:Hearing Tests; D006801:Humans; D008297:Male; D008875:Middle Aged; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D013067:Speech Perception / Q000502:physiology
keywords: Auditory evoked potentials; Balance; Cochlear implant; Dizziness; Equilíbrio; Hearing loss; Implante coclear; Perda auditiva; Posturografia; Posturography; Potenciais evocados auditivos; Tontura