title: Cochlear implantation for total deafness after ipsilateral ventriculoperitoneal shunt surgery: technical report.
abstract: BACKGROUND
  Cochlear implantation (CI) becomes more challenging when a programmable ventriculoperitoneal (VP) shunt is present on the same side of the head. We report a successful ipsilateral CI in a patient who suffered bilateral hearing loss after shunt surgery.
  
  
  METHODS
  We describe the CI case of a 49-year-old woman with an implanted VP shunt device, and perform a retrospective review of the clinical, audiological, and radiological features, surgical techniques, and postoperative functional outcomes.
  
  
  RESULTS
  During CI, the magnet in the core of internal antenna of the CI device was positioned approximately 8 cm from the shunt valve so that it would not be affected by the magnetic field of the programmable valve. Although the CI antenna tip and shunt catheter overlapped, we were very careful not to pull the shunt catheter out of position while the musculoperiosteal flap was elevated.
  
  
  CONCLUSIONS
  The present result suggests that ipsilateral CI is an option for deaf adult patients who have a programmable shunt.
authors: Department of Otolaryngology Head & Neck Surgery, Eulji Hospital, Eulji University School of Medicine, Hagye 1 Dong 280-1, Nowongu, Seoul 139-872, Korea.
authors: Yong-Hwi
authors: YH
authors: An
authors: Seong Jun
authors: SJ
authors: Song
authors: Sang Won
authors: SW
authors: Yoon
authors: Jae Hoon
authors: JH
authors: Kim
authors: Hyun Joon
authors: HJ
authors: Shim
mesh_terms: D019929:Cochlear Implantation / Q000379:methods*; D003638:Deafness / Q000209:etiology* / Q000601:surgery*; D005260:Female; D006312:Hearing Loss, Bilateral / Q000209:etiology / Q000601:surgery; D006801:Humans; D006849:Hydrocephalus / Q000601:surgery*; D008875:Middle Aged; D011183:Postoperative Complications / Q000601:surgery*; D016896:Treatment Outcome; D017287:Ventriculoperitoneal Shunt / Q000009:adverse effects* / Q000379:methods