Effect of reducing electrical stimulation rate on hearing performance of Nucleus® cochlear implant recipients.
Int J Audiol
; : 1-10, 2024 Feb 29.
Article
en En
| MEDLINE
| ID: mdl-38420783
ABSTRACT
OBJECTIVE:
To evaluate whether a 500 pulses per second per channel (pps/ch) rate would provide non-inferior hearing performance compared to the 900 pps/ch rate in the Advanced Combination Encoder (ACE™) sound coding strategy.DESIGN:
A repeated measures single-subject design was employed, wherein each subject served as their own control. All except one subject used 900 pps/ch at enrolment. After three weeks of using the alternative rate program, both programs were loaded into the sound processor for two more weeks of take-home use. Subjective performance, preference, words in quiet, sentences in babble, music quality, and fundamental frequency (F0) discrimination were assessed using a balanced design. STUDY SAMPLE Data from 18 subjects were analysed, with complete datasets available for 17 subjects.RESULTS:
Non-inferior performance on all clinical measures was shown for the lower rate program. Subjects' preference ratings were comparable for the programs, with 53% reporting no difference overall. When a preference was expressed, the 900 pps/ch condition was preferred more often.CONCLUSION:
Reducing the stimulation rate from 900 pps/ch to 500 pps/ch did not compromise the hearing outcomes evaluated in this study. A lower pulse rate in future cochlear implants could reduce power consumption, allowing for smaller batteries and processors.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Int J Audiol
/
Int. j. audiol
/
International journal of audiology
Asunto de la revista:
AUDIOLOGIA
Año:
2024
Tipo del documento:
Article
País de afiliación:
Australia