title: Intraoperative electrically evoked stapedius reflex thresholds in children undergone cochlear implantation: round window and cochleostomy approaches.
abstract: OBJECTIVE
  To study the best electrically stimulation in cochlear implant surgery with round window (RW) and Promontory cochleostomy approaches with electrically evoked stapedius reflex thresholds (ESRT) intraoperatively.
  
  
  METHODS
  Thirty-nine children underwent CI surgery were included for this study. The surgical procedures consisted of RW and Promontory cochleostomy. ESRT for each 1st, 3rd, 6th and 12th electrodes (E) were determined. Statistical evaluation was done for the comparison of the thresholds and duration times for both groups.
  
  
  RESULTS
  The duration times of ESRT for E1, E3, E6 and E12 electrodes was shorter in RW group compared with the Promontory group (p<0.05). The statistical evaluation of ESRT measurements of E1, E3, E6 found p<0.001 and E12 electrode p<0.05 in RW group. ESRT measurements were recorded at lower threshold in the RW group compared with the Promontory group.
  
  
  CONCLUSIONS
  The duration of electrically stimulation thresholds were shorter in RW group. ESRT measurements were recorded at lower threshold in the RW group compared with the Promontory group. RW insertion offers best electrically stimulation relative to electrode insertion via a promontory cochleostomy.
authors: Inonu University, Medical Faculty, Turgut Ozal Medicine Center, Otorhinololaryngology Dept. (KBB) Elazig Road, km. 11, 44280 Malatya, Turkey. erkaratas@yahoo.com
authors: Erkan
authors: E
authors: Karatas
authors: Murat Deniz
authors: MD
authors: Aud
authors: Tekin
authors: T
authors: Baglam
authors: Cengiz
authors: C
authors: Durucu
authors: Elif
authors: E
authors: Baysal
authors: Muzaffer
authors: M
authors: Kanlikama
mesh_terms: D000367:Age Factors; D001309:Auditory Threshold / Q000502:physiology*; D002675:Child, Preschool; D019929:Cochlear Implantation / Q000379:methods*; D003054:Cochlear Implants; D015331:Cohort Studies; D003638:Deafness / Q000175:diagnosis / Q000601:surgery*; D004558:Electric Stimulation; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007430:Intraoperative Care / Q000379:methods; D008297:Male; D012189:Retrospective Studies; D018570:Risk Assessment; D012405:Round Window, Ear / Q000601:surgery*; D013198:Stapedius / Q000601:surgery*; D018709:Statistics, Nonparametric; D013997:Time Factors; D016896:Treatment Outcome