title: The correlation between ECochG parameters and early auditory behavior after cochlear implantation in children.
abstract: The individual outcome after cochlear implantation in children with auditory synaptopathy/neuropathy (AS/AN) is difficult to predict. A tool for preoperative assessment would be helpful for counseling parents. This study evaluates the outcome after CI in children with AS/AN and with sensorineural hearing loss (SNHL), and correlates it with the preoperative ECochG results in order to find specific parameters of prognostic value.
  
  
  
  The improvement of auditory behavior after CI was retrospectively assessed using the LittlEARS questionnaire and quantified in a score (LS). This score was correlated with the CAP/SP ratio in the preoperative ECochG. The score was further correlated with the patient's age six months following CI.
  
  
  
  Nine children with AS/AN were compared to nine children with SNHL.
  
  
  
  Both groups showed a significant improvement in LS following CI. There was a significant positive correlation between the CAP/SP ratio and the improvement in LS in all children. The correlation between age and LS was significantly negative in the SNHL group and positive in the AS/AN group.
  
  
  
  All children with AS/AN and SNHL benefit to a similar extent from CI. The preoperatively assessed CAP/SP ratio has a prognostic value for the development of auditory behavior following CI.
authors.affiliation: a Department of Otorhinolaryngology , University of Cologne , Germany and.
authors.forename: Konrad Johannes
authors.initials: KJ
authors.lastname: Stuermer
authors.affiliation: a Department of Otorhinolaryngology , University of Cologne , Germany and.
authors.forename: Dirk
authors.initials: D
authors.lastname: Beutner
authors.affiliation: a Department of Otorhinolaryngology , University of Cologne , Germany and.
authors.forename: Barbara
authors.initials: B
authors.lastname: Streicher
authors.affiliation: a Department of Otorhinolaryngology , University of Cologne , Germany and.
authors.forename: Astrid
authors.initials: A
authors.lastname: Foerst
authors.affiliation: b Institute of Medical Statistics, Informatics and Epidemiology (IMSIE), University of Cologne , Germany.
authors.forename: Moritz
authors.initials: M
authors.lastname: Felsch
authors.affiliation: a Department of Otorhinolaryngology , University of Cologne , Germany and.
authors.forename: Ruth
authors.initials: R
authors.lastname: Lang-Roth
authors.affiliation: a Department of Otorhinolaryngology , University of Cologne , Germany and.
authors.forename: Martin
authors.initials: M
authors.lastname: Walger
mesh_terms: D000367:Age Factors; D001300:Audiometry, Evoked Response; D001307:Auditory Perception; D002648:Child; D002652:Child Behavior; D002675:Child, Preschool; D019929:Cochlear Implantation / Q000295:instrumentation*; D003054:Cochlear Implants; D019988:Children with Disabilities / Q000523:psychology / Q000534:rehabilitation*; D005260:Female; D006313:Hearing Loss, Central / Q000175:diagnosis / Q000503:physiopathology / Q000523:psychology / Q000534:rehabilitation*; D006319:Hearing Loss, Sensorineural / Q000175:diagnosis / Q000503:physiopathology / Q000523:psychology / Q000534:rehabilitation*; D006801:Humans; D007223:Infant; D008297:Male; D019986:Persons with Hearing Disabilities / Q000523:psychology / Q000534:rehabilitation*; D011237:Predictive Value of Tests; D020127:Recovery of Function; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D016896:Treatment Outcome
keywords: Cochlear implantation; auditory behavior; auditory neuropathy; auditory synaptopathy; electrocochleography; sensorineural hearing loss