title: Using the Implant Electrode Array to Conduct Real-time Intraoperative Hearing Monitoring During Pediatric Cochlear Implantation: Preliminary Experiences.
abstract: OBJECTIVE
  To present the preliminary experiences and findings from a pilot study evaluating a novel technique for monitoring cochlear electrophysiological function during electrode insertion in cochlear implantation surgery.
  
  
  METHODS
  Prospective pilot cohort study.
  
  
  METHODS
  Tertiary academic neuro-otology center.
  
  
  METHODS
  Pediatric patients with residual hearing undergoing hearing preservation cochlear implant surgery.
  
  
  METHODS
  Monitoring of intraoperative cochlear microphonics during cochlear implant surgery.
  
  
  METHODS
  Intraoperative intracochlear microphonic measurement, preservation of these responses postoperatively and preservation of hearing as measured by audiometry.
  
  
  RESULTS
  Intracochlear microphonics could be identified in both patients presented and were preserved during the surgical procedure and postoperatively. The preservation of intracochlear microphonics correlates with preservation of hearing.
  
  
  CONCLUSIONS
  The novel approach using the electrode array to detect and measure intracochlear microphonics during cochlear implantation surgery shows promise as an instrument to alert the operating surgeon to hair cell damage during electrode insertion. Further refinement of the technique is required to better understand the measurements and correlate these with pre- and postoperative hearing and risk of hearing loss from surgery. Improvements in the software algorithm will reduce the time required for each measurement, leading to the development a more real-time monitoring technique.
authors.affiliation: Department of Otolaryngology, Head and Neck Surgery, Fiona Stanley Hospital Campus, School of Surgery, University of Western Australia, Murdoch, Western Australia, Australia.
authors.forename: Aanand N
authors.initials: AN
authors.lastname: Acharya
authors.forename: Dayse
authors.initials: D
authors.lastname: Tavora-Vieira
authors.forename: Gunesh P
authors.initials: GP
authors.lastname: Rajan
mesh_terms: D001299:Audiometry; D002648:Child; D019929:Cochlear Implantation / Q000379:methods*; D003054:Cochlear Implants; D015331:Cohort Studies; D005260:Female; D006309:Hearing / Q000502:physiology; D034381:Hearing Loss / Q000601:surgery*; D006801:Humans; D008297:Male; D016343:Monitoring, Intraoperative / Q000379:methods*; D010865:Pilot Projects; D011184:Postoperative Period; D011446:Prospective Studies