Class
Article
College
Emma Eccles Jones College of Education and Human Services
Department
English Department
Faculty Mentor
Navenn Nagaraj
Presentation Type
Poster Presentation
Abstract
Electrical stapedial reflex threshold (eSRT) is an objective measurement of the stapedial reflex triggering in response to loud electrical stimulation through the CI electrode. eSRT has been a valuable clinical tool in mapping the Cochlear Implant (CI) electrodes upper limits. The main objective of this study is to validate the changes in the eSRT within and across CI patients over one year post activation. In this study retrospective clinical data were analyzed from 44 patients ranging in age from 1-88 years, with a total of 29 left ear devices and 31 right ear devices activated in the years 2013-2020 with at least 2 full eSRT measurements. The eSRT scores were standardized across manufacturers and the stability of eSRT thresholds over multiple appointments within one year of CI activation were analyzed using paired comparison t-test and regression analysis. In general, eSRT scores remain stable over a 12-month period post initial activation. This suggests eSRT does not need to be measured at every appointment during the first-year post activation. However, it should be noted that 8 ears had a single frequency range that did not appear stable over the 12-month period and 4 ears had two frequency ranges that did not appear stable over the 12-month period. There was also data suggesting eSRT measurements for males are less stable than females and eSRT measurements for the manufacturer Cochlear appear to be less stable than for the other two manufacturers. Further investigation into these findings may be warranted.
Location
Logan, UT
Start Date
4-8-2022 12:00 AM
Included in
Short Term Stability of the Electrical Stapedial Reflex
Logan, UT
Electrical stapedial reflex threshold (eSRT) is an objective measurement of the stapedial reflex triggering in response to loud electrical stimulation through the CI electrode. eSRT has been a valuable clinical tool in mapping the Cochlear Implant (CI) electrodes upper limits. The main objective of this study is to validate the changes in the eSRT within and across CI patients over one year post activation. In this study retrospective clinical data were analyzed from 44 patients ranging in age from 1-88 years, with a total of 29 left ear devices and 31 right ear devices activated in the years 2013-2020 with at least 2 full eSRT measurements. The eSRT scores were standardized across manufacturers and the stability of eSRT thresholds over multiple appointments within one year of CI activation were analyzed using paired comparison t-test and regression analysis. In general, eSRT scores remain stable over a 12-month period post initial activation. This suggests eSRT does not need to be measured at every appointment during the first-year post activation. However, it should be noted that 8 ears had a single frequency range that did not appear stable over the 12-month period and 4 ears had two frequency ranges that did not appear stable over the 12-month period. There was also data suggesting eSRT measurements for males are less stable than females and eSRT measurements for the manufacturer Cochlear appear to be less stable than for the other two manufacturers. Further investigation into these findings may be warranted.