title: [Site of cochlear stimulation and its effect on electrically evoked compound action potentials using the Nucleus24 cochlear implants].
abstract: OBJECTIVE
  Using the neural response telemetry (NRT) software to investigate whether a difference exists in ECAP properties depending on the region of the cochlea that is stimulated and measured.
  
  
  METHODS
  Twenty seven Nucleus CI24R (CA) cochlear implant users participated in this study. ECAPs were recorded intraoperatively using the NRT software. No. 1, 4, 8, 11, 17, 22 electrodes were tested for each patient. ECAP amplitude, threshold and slope were measured using amplitude growth sequences.
  
  
  RESULTS
  Apical recordings showed on average higher ECAP amplitudes, lower ECAP thresholds and steeper slopes of the ECAP amplitude growth function.
  
  
  CONCLUSIONS
  Considerable variability exists in ECAPs due to the region of the cochlea that is stimulated and measured.
authors: Department of Otorhinolaryngology, the First Affiliated Hospital, China Medical University, Shenyang, 110001, China. ty31505@163.com
authors: Ying
authors: Y
authors: Tian
authors: Wei
authors: W
authors: Li
authors: Zheng
authors: Z
authors: Wang
authors: Ning
authors: N
authors: Yang
authors: Lian
authors: L
authors: Hui
authors: Xuejun
authors: X
authors: Jiang
mesh_terms: D001309:Auditory Threshold; D002648:Child; D002675:Child, Preschool; D003054:Cochlear Implants; D003056:Cochlear Nerve / Q000502:physiology*; D004558:Electric Stimulation; D004566:Electrodes; D005071:Evoked Potentials; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male