Electrically Evoked Stapedial Reflex Threshold: A Procedure Objective measures, such as the electrically evoked stapedial reflex threshold (ESRT), are critical components of optimal cochlear implant (CI) programming. Recent data suggest, however, that ESRT measurements are not commonly used by audiologists when programming CIs (Hemmingson & Messersmith, 2017). Potential reasons for limited use of these measures may be ... Article
Article  |   March 20, 2018
Electrically Evoked Stapedial Reflex Threshold: A Procedure
Author Affiliations & Notes
  • Jessica J. Messersmith
    University of South Dakota, Vermillion
  • Lavin Entwisle
    University of South Dakota, Vermillion
  • Agelia Stout
    University of South Dakota, Vermillion
  • Disclosures
    Disclosures ×
  • Financial: Jessica J. Messersmith has no relevant financial interests to disclose. Lavin Entwisle has no relevant financial interests to disclose. Agelia Stout has no relevant financial interests to disclose.
    Financial: Jessica J. Messersmith has no relevant financial interests to disclose. Lavin Entwisle has no relevant financial interests to disclose. Agelia Stout has no relevant financial interests to disclose.×
  • Nonfinancial: The authors presented procedures for completing ESRT testing at the NYU CI Programming Conference in December of 2016.
    Nonfinancial: The authors presented procedures for completing ESRT testing at the NYU CI Programming Conference in December of 2016.×
Article Information
Hearing & Speech Perception / Hearing Aids, Cochlear Implants & Assistive Technology / Part 1
Article   |   March 20, 2018
Electrically Evoked Stapedial Reflex Threshold: A Procedure
Perspectives of the ASHA Special Interest Groups, March 2018, Vol. 3, 4-11. doi:10.1044/persp3.SIG9.4
History: Received July 11, 2017 , Revised November 8, 2017 , Accepted December 8, 2017
Perspectives of the ASHA Special Interest Groups, March 2018, Vol. 3, 4-11. doi:10.1044/persp3.SIG9.4
History: Received July 11, 2017; Revised November 8, 2017; Accepted December 8, 2017

Objective measures, such as the electrically evoked stapedial reflex threshold (ESRT), are critical components of optimal cochlear implant (CI) programming. Recent data suggest, however, that ESRT measurements are not commonly used by audiologists when programming CIs (Hemmingson & Messersmith, 2017). Potential reasons for limited use of these measures may be limited knowledge of the procedure for completing the measures and limited knowledge of how to apply results to programming. Clinically, ESRT is observed as a change in the static admittance of the ear canal in response to electrical stimulation through the CI; this deflection can be observed using the decay setting on an immitance bridge. ESRT is defined as the lowest amount of electrical stimulation that results in a 0.02 deflection from baseline (Gelfand, 2002). ESRT has been found to align closely to behaviorally measured C/M levels and, as such, can assist in determining appropriate C/M levels during programming (Lira de Andrade et al., 2014; Stephan & Welzl-Müller, 2000). The purpose of this article is to describe a procedure for completing and applying ESRT measures, an objective measure that correlates to C/M levels, to CI programming.

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