Monitoring residual hearing during cochlear implantation by intra-operative brainstem audiometry.
OBJECTIVE
Aim of this paper is to prove the applicability of intra-operative recordings of auditory brainstem responses during cochlear implantation.


METHODS
The clinical practicability of intra-operative monitoring of hearing thresholds (Notched-Noise BERA, Amplitude Modulation Following Response [AMFR]) is presented in the respective case. The recordings were performed prior to the cochlear implantation and were compared with those obtained during and after cochlear implantation.


RESULTS
It is demonstrated that the patient's cochlear function can be monitored; residual hearing is available after surgery.


CONCLUSIONS
The possibility of monitoring of hearing thresholds may add some security to the concept of electric-acoustic stimulation.
Pau
Hans Wilhelm
HW
Department of Otorhinolaryngology, Head and Neck Surgery, University of Rostock, Doberaner Str. 137-9, 18057 Rostock, Germany. hans-wilhelm.pau@med.uni-rostock.de
Just
Tino
T
Dahl
Rüdiger
R
Sievert
Uwe
U
D019929:Cochlear Implantation / Q000379:methods*; D016057:Evoked Potentials, Auditory, Brain Stem; D006309:Hearing / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods*