title: [Development of electrically evoked auditory brainstem response modules of REZ-I domestic cochlear implant device].
abstract: OBJECTIVE
  To develop electrically evoked auditory brainstem response(EABR) modules of REZ-I domestic cochlear implant device, and testify the reliability and validity of the modules.
  
  
  METHODS
  Postoperative EABR were recorded in guinea pigs by using the self-designed EABR module.
  
  
  RESULTS
  EABR waves were recorded in all 15 ears of 9 guinea pigs with normal hearing. The threshold was (159.00 ± 50.21) current level (CL) and eIII wave latency was (2.36 ± 0.46) ms of 100 µs pulse width stimulation; for 150 µs pulse width stimulation, the threshold was (131.44 ± 49.25) CL and eIII wave latency was (2.59 ± 0.46)ms; for 200 µs pulse width stimulation, the threshold was (119.63 ± 52.56) CL and e III wave latency was (2.62 ± 0.44)ms.
  
  
  CONCLUSIONS
  According the preliminary results of the study, the reliability and stability of the EABR modules of domestic cochlear implant device can meet the demands of EABR recording.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China.
authors.forename: Xiuyong
authors.initials: X
authors.lastname: Ding
authors.forename: Ruxiang
authors.initials: R
authors.lastname: Zhang
authors.forename: Changjian
authors.initials: C
authors.lastname: Xu
authors.forename: Wei
authors.initials: W
authors.lastname: Fan
authors.affiliation: Email: zdx161154@aliyun.con.
authors.forename: Daoxing
authors.initials: D
authors.lastname: Zhang
mesh_terms: D000818:Animals; D001309:Auditory Threshold; D003051:Cochlea; D019929:Cochlear Implantation; D003054:Cochlear Implants; D016057:Evoked Potentials, Auditory, Brain Stem; D006168:Guinea Pigs; D015203:Reproducibility of Results