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Published on: August 4, 2023
Long Term Voice Effects of Partial Deafness Cochlear Implantation
K Myszel1, A Szkiełkowska2, H Skarżyński2
1Institute of Physiology and Pathology of Hearing, Warsaw, Poland; Greater Poland Center of Hearing and Speech, Konin, Poland; University of Applied Sciences, Faculty of Health Sciences, Konin, Poland.
Summary
Partial deafness (PD) leads to voice disorders. Partial deafness cochlear implantation (PDCI) significantly improves voice quality over time, with long-term benefits observed in acoustic parameters like frequency and amplitude.
Area of Science:
- Audiology
- Speech-Language Pathology
- Otolaryngology
Background:
- Partial deafness (PD) impairs high-frequency hearing, often causing functional voice disorders.
- PD is linked to measurable changes in voice frequency, amplitude, noise, and regularity.
- Partial deafness cochlear implantation (PDCI) is a recognized intervention for improving voice quality.
Purpose of the Study:
- To evaluate the long-term effects of one-sided PDCI on voice quality in adults with bilateral PD.
- To compare voice outcomes at 72 months post-implantation with earlier (9 months) results.
Main Methods:
- Analysis of voice samples from 16 adult patients with bilateral PD.
- Longitudinal assessment of acoustic voice parameters at 9 and 72 months after unilateral PDCI.
- Statistical comparison of voice parameters between short-term and long-term follow-up.
Main Results:
- Voice improvements continued and intensified over the long term (72 months) post-PDCI.
- Significant enhancements were observed in frequency and amplitude parameters.
- Most acoustic parameters, including perturbation, noise, and irregularity measures, showed greater improvement and statistical significance at 72 months compared to 9 months.
Conclusions:
- The vocal benefits of PDCI are sustained and enhanced with longer device usage.
- Long-term PDCI positively impacts various voice acoustic parameters, indicating sustained functional voice improvement.