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Relation between vestibular function and speech recognition in postlingually deafened adults with cochlear
T Himi1, T Shintani, T Yamaguchi
1Department of Otolaryngology, Sapporo Medical University, School of Medicine, Japan.
Audiology & Neuro-Otology
|July 1, 1997
Summary
Residual vestibular function in cochlear implant patients influences consonant recognition post-surgery. Vestibular tests like the caloric test and stabilometry can predict speech perception outcomes.
Area of Science:
- Audiology
- Neuroscience
- Vestibular System
Background:
- Cochlear implants (CIs) are vital for postlingual deafness.
- Vestibular function's impact on CI outcomes is not fully understood.
- Preoperative vestibular assessment may offer predictive value.
Purpose of the Study:
- To investigate the relationship between preoperative vestibular function and postoperative speech recognition in CI users.
- To determine if specific vestibular tests correlate with speech perception abilities.
Main Methods:
- Thirty-one postlingual deaf adults with 22-channel CIs were assessed.
- Vestibular function evaluated using caloric tests and stabilometry.
- Speech perception tested for consonant and vowel recognition.
Main Results:
- A significant difference in consonant recognition was observed between normo-/hyporeflexia and areflexia groups.
- Body sway distance in stabilometry correlated with consonant recognition.
- Vowel recognition did not show significant differences between groups.
Conclusions:
- Residual vestibular function is a potential indicator for postoperative speech recognition in CI patients.
- Vestibular assessment, particularly stabilometry, may aid in predicting CI success.
- Further research is warranted to explore the vestibular system's role in auditory rehabilitation.