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Multicentre investigation on electrically evoked compound action potential and stapedius reflex: how do these objective measures relate to implant programming parameters?

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Abstract
Objectives: The aims of this study were to collect data on electrically evoked compound action potential (eCAP) and electrically evoked stapedius reflex thresholds (eSRT) in HiResolutionTM cochlear implant (CI) users, and to explore the relationships between these objective measures and behavioural measures of comfort levels (M-levels). Methods: A prospective study on newly implanted subjects was designed. The eCAP was measured intra-operatively and at first fitting through neural response imaging (NRI), using the SoundWaveTM fitting software. The eSRT was measured intra-operatively by visual monitoring of the stapes, using both single-electrode stimulation and speech bursts (four electrodes stimulated at the same time). Measures of M-levels were performed according to standard clinical practice and collected at first fitting, 3 and 6 months of CI use. Results: One hundred seventeen subjects from 14 centres, all implanted unilaterally with a HiResolution CII Bionic Ear® or HiRes 90K®, were included in the study. Speech burst stimulation elicited a significantly higher eSRT success rate than single-electrode stimulation, 84 vs. 64% respectively. The NRI success rate was 81% intra-operatively, significantly increasing to 96% after 6 months. Fitting guidelines were defined on the basis of a single NRI measurement. Correlations, analysis of variance, and multiple regression analysis were applied to generate a predictive model for the M-levels. Discussion: Useful insights were produced into the behaviour of objective measures according to time, electrode location, and fitting parameters. They may usefully assist in programming the CI when no reliable feedback is obtained through standard behavioural procedures.

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Chicago
Van Den Abbeele, Thierry, Nathalie Noël-Petroff, Istemihan Akin, Gül Caner, Levent Olgun, Jeanne Guiraud, Eric Truy, et al. 2012. “Multicentre Investigation on Electrically Evoked Compound Action Potential and Stapedius Reflex: How Do These Objective Measures Relate to Implant Programming Parameters?” Cochlear Implants International 13 (1): 16–24.
APA
Van Den Abbeele, T., Noël-Petroff, N., Akin, I., Caner, G., Olgun, L., Guiraud, J., Truy, E., et al. (2012). Multicentre investigation on electrically evoked compound action potential and stapedius reflex: how do these objective measures relate to implant programming parameters? COCHLEAR IMPLANTS INTERNATIONAL, 13(1), 16–24.
Vancouver
1.
Van Den Abbeele T, Noël-Petroff N, Akin I, Caner G, Olgun L, Guiraud J, et al. Multicentre investigation on electrically evoked compound action potential and stapedius reflex: how do these objective measures relate to implant programming parameters? COCHLEAR IMPLANTS INTERNATIONAL. 2012;13(1):16–24.
MLA
Van Den Abbeele, Thierry, Nathalie Noël-Petroff, Istemihan Akin, et al. “Multicentre Investigation on Electrically Evoked Compound Action Potential and Stapedius Reflex: How Do These Objective Measures Relate to Implant Programming Parameters?” COCHLEAR IMPLANTS INTERNATIONAL 13.1 (2012): 16–24. Print.
@article{2141168,
  abstract     = {Objectives: The aims of this study were to collect data on electrically evoked compound action potential (eCAP) and electrically evoked stapedius reflex thresholds (eSRT) in HiResolutionTM cochlear implant (CI) users, and to explore the relationships between these objective measures and behavioural measures of comfort levels (M-levels).
Methods: A prospective study on newly implanted subjects was designed. The eCAP was measured intra-operatively and at first fitting through neural response imaging (NRI), using the SoundWaveTM fitting software. The eSRT was measured intra-operatively by visual monitoring of the stapes, using both single-electrode stimulation and speech bursts (four electrodes stimulated at the same time). Measures of M-levels were performed according to standard clinical practice and collected at first fitting, 3 and 6 months of CI use.
Results: One hundred seventeen subjects from 14 centres, all implanted unilaterally with a HiResolution CII Bionic Ear{\textregistered} or HiRes 90K{\textregistered}, were included in the study. Speech burst stimulation elicited a significantly higher eSRT success rate than single-electrode stimulation, 84 vs. 64\% respectively. The NRI success rate was 81\% intra-operatively, significantly increasing to 96\% after 6 months. Fitting guidelines were defined on the basis of a single NRI measurement. Correlations, analysis of variance, and multiple regression analysis were applied to generate a predictive model for the M-levels.
Discussion: Useful insights were produced into the behaviour of objective measures according to time, electrode location, and fitting parameters. They may usefully assist in programming the CI when no reliable feedback is obtained through standard behavioural procedures.},
  author       = {Van Den Abbeele, Thierry and No{\"e}l-Petroff, Nathalie and Akin, Istemihan and Caner, G{\"u}l and Olgun, Levent and Guiraud, Jeanne and Truy, Eric and Attias, Josef and Raveh, Eyal and Belgin, Erol and Sennaroglu, Gonca and Basta, Dietmar and Ernst, Arneborg and Martini, Alessandro and Rosignoli, Monica and Levi, Haya and Elidan, Joseph and Benghalem, Abdelhamid and Amstutz-Montadert, Isabelle and Lerosey, Yannick and DE VEL, EDDY and Dhooge, Ingeborg and Hildesheimer, Minka and Kronenberg, Jona and Arnold, Laure},
  issn         = {1467-0100},
  journal      = {COCHLEAR IMPLANTS INTERNATIONAL},
  language     = {eng},
  number       = {1},
  pages        = {16--24},
  title        = {Multicentre investigation on electrically evoked compound action potential and stapedius reflex: how do these objective measures relate to implant programming parameters?},
  url          = {http://dx.doi.org/10.1179/1754762810Y.0000000001},
  volume       = {13},
  year         = {2012},
}

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