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- Title
Electrically Evoked Stapedial Reflex Threshold: A Procedure.
- Authors
Messersmith, Jessica J.; Entwisle, Lavin; Stout, Agelia
- Abstract
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 upper comfort levels (e.g., C/M levels in the manufacturer software) 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.
- Subjects
DEAFNESS &; psychology; EAR physiology; EDUCATION of audiologists; STAPEDIUS muscle; ACOUSTIC reflex; IMPEDANCE audiometry; AUDITORY perception; COCHLEAR implants; DEAFNESS; ELECTRIC stimulation; HEARING levels; HUMAN comfort; MEDICAL equipment calibration; SPEECH perception; LOUDNESS; PHYSIOLOGY; EQUIPMENT &; supplies
- Publication
Perspectives of the ASHA Special Interest Groups, 2018, Vol 3, Issue 9, p4
- ISSN
2381-473X
- Publication type
Article
- DOI
10.1044/persp3.SIG9.4