Related Experiment Video
Updated: Jun 19, 2026

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice
Published on: January 9, 2019
Cochlear implantation in Bjornstad syndrome: a case series with literature review
Secaattin Gülşen1, Sercan Çıkrıkcı2
1Department of Otolaryngology, Head and Neck Surgery, Dr Ersin Arslan Training and Research Hospital, Eyüpoğlu Mah. Hürriyet Cad. No: 40, Şahinbey, Gaziantep, Turkey.
Background:
To report the presentation, diagnostic process, management and results of cochlear implantation of patients diagnosed with Bjornstad syndrome with profound sensorineural hearing loss (SNHL).
Case Presentation And Management:
A retrospective report of two siblings with Bjornstad syndrome suffering profound SNHL unresponsive to conventional hearing aids treated with bilateral simultaneous cochlear implantation.
Setting:
Tertiary-referral center.
Results:
Cochlear implant surgeries of two siblings (four ears) with profound SNHL and bilateral inner ear anomaly (incomplete partition type 1) were performed without complications. Postoperative audiometric measurements showed a significiant improvement in pure-tone threshold and a word recognition score. In the literature review, no previous case of Bjornstad syndrome treated with cochlear implantation has been reported.
Conclusions:
Cochlear implantation is an effective, safe, and ultimate treatment option for Bjornstad syndrome with profound SNHL not responding to hearing aids.

