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87th Annual Meeting of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

German Society of Oto-Rhino-Laryngology, Head and Neck Surgery

04.05. - 07.05.2016, Düsseldorf

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Establishment and rudimentary application of the method of recording EMLR in cochlear implantation

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  • corresponding author Zhiqiang Gao - Peking Union Medical College Hospital, Peking, China
  • Bin Wang - Peking Union Medical College Hospital, Beijing, China
  • Keli Cao - Peking Union Medical College Hospital, Beijing, China
  • Chaogang Wei - Peking Union Medical College Hospital, Beijing, China
  • Lan Luan - Peking Union Medical College Hospital, Beijing, China
  • Huan Li - Peking Union Medical College Hospital, Beijing, China

Deutsche Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. 87. Jahresversammlung der Deutschen Gesellschaft für Hals-Nasen-Ohren-Heilkunde, Kopf- und Hals-Chirurgie. Düsseldorf, 04.-07.05.2016. Düsseldorf: German Medical Science GMS Publishing House; 2016. Doc16hnod309

doi: 10.3205/16hnod309, urn:nbn:de:0183-16hnod3092

Published: March 30, 2016

© 2016 Gao et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

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Introduction: Establishment of the pre-operative electric evoked auditory middle-latency response (EMLR) detection method for the first time, can detect the physiological status of the primary auditory cortex; estimate the preliminary post-operative hearing and speech rehabilitation capacity according to the the EMLR classification results.

Method: Choose February 2010 to February 2011 in our hospital company Nucleus 24R multi-channel cochlear cochlear implant surgery. Preoperative objective audiometry (including DPOAE, ABR, ASSR and help audiometry) showed no residual hearing of 26 cases of patients as the experimental group, while, according to age, sex, time of deafness, ear and cochlear implants paired developmental screening form with residual hearing and speech-based 26 patients as a control group. ECAP within the same group threshold, EABR threshold, EMLR threshold and boot T, C values of correlation; pair EMLR grading and boot December CAP score correlation analysis. Statistical analysis of differences between the two groups were EMLR threshold, postoperative CAP score difference.

Results: 6 cases of normal hearing subjects AMLR waveform can be recorded to an average response threshold (12.5 ± 8.6) dB nHL, close to the threshold for behavioral audiometry (10.8 ± 7.3) dB HL. Description EMLR can assess higher-level central auditory physiological functions associated with hearing and speech development.

Conclusion: This study successfully established preoperative EMLR detection method can detect the physiological function of the primary auditory cortex, according to preliminary estimates EMLR classification results postoperative hearing ability and speech rehabilitation, auditory brainstem implant for future theoretical support to do the work.

Supported by: Peking Union Medical College Hospital

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