An interventional study of frequency distribution type in Influence of Anatomy Based Frequency Mapping on Speech Outcomes and Hearing Related Measures, sponsored by Dominik Riss. Status unknown at 1 site in Austria. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-01-13.
Sponsored by Dominik Riss · Not applicable, Interventional, and Basic science
The present study investigates CI users' potential differences in speech tests, other performance measures (i.e. pitch-matching, perception of timbre and melodic intervals, consonance perception), and patient-reported outcome (i.e. questionnaires) between the clinical fitting map and anatomy-based fitting in two groups of CI users (one with standard fitting and one with anatomy-based fitting).
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This study's planned enrollment of 60 is close to the median of 64 across 610 interventional studies indexed under Seizures.
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Exclusion Criteria:
Other: frequency distribution type
Other: frequency distribution type
One group is fitted using channel filterbank frequency distribution based on anatomy data extracted from post-OP CT measurements. The second (control) group is fitted with the standard frequency distribution used in MAESTRO 9 fitting software.
Word recognition score (WRS)
Percentage of correctly understood monosyllabic words from a list.
Time frame: 6 months
Speech reception threshold (SRT)
German matrix sentence test - speech to noise ratio in dB.
Time frame: 6 months
Pitch ranking
Difference of the mean ranks for a set of frequencies presented to the tested CI ear and the reference ear.
Time frame: 6 months
Perception of timbre
Visual Analog Scale ratings describing the difference in timbre between the tested CI ear and the reference ear when listening to audio.
Time frame: 6 months
Phoneme categorization
Shape of the psychometric function describing the perception of the /s/-/ʃ/ continuum.
Time frame: 6 months
Consonance/difference rating
The degree of modulation of the pleasantness-score across the individual intervals.
Time frame: 6 months
This study is status unknown, as verified in Jan 2023. You cannot join it, but the record below documents what was studied.
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Dominik Riss