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Electric auditory brain stem response in pediatric patients with cochlear implants
T P Nikolopoulos1, S M Mason, G M O'Donoghue
1Otorhinolaryngology Department, Queen's Medical Centre, Nottingham University Hospital, U.K.
The American Journal of Otology
|December 10, 1997
Summary
Four new electrical auditory brain stem response (EABR) parameters objectively measure cochlear implant function. These EABR metrics provide a standardized method for comparing results across studies and centers.
Area of Science:
- Audiology
- Neuroscience
- Biomedical Engineering
Background:
- Electrical auditory brain stem response (EABR) is crucial for assessing auditory pathway function.
- Objective measurement of EABR input-output function is needed for consistent clinical evaluation.
Purpose of the Study:
- To introduce four novel EABR parameters for objective input-output function measurement.
- To establish a standardized basis for comparing EABR studies in cochlear implant research.
Main Methods:
- EABR recordings were obtained from 106 ears of 53 children undergoing cochlear implantation.
- Electrical stimulation was applied at the promontory during surgery under anesthesia.
Main Results:
- Clearly defined EABR responses were obtained in 81 out of 106 ears (76.4%).
- A package of four comprehensive parameters (slope, maximal slope, relative growth rate, maximal relative growth rate) was developed.
- Detailed calculation methods for these parameters are provided.
Conclusions:
- The new EABR parameters offer objective quantification of the input-output function.
- These parameters can enhance the consistency of subjective EABR evaluations.
- Standardized EABR metrics will facilitate inter-center comparisons and advance cochlear implant research.