Akademik Veri Yönetim Sistemi
Indian Journal of Otolaryngology and Head and Neck Surgery, cilt.77, sa.11, ss.4953-4959, 2025 (ESCI)
Objective: The impact of cochlear implants on the mechanical properties of the middle ear and its acoustic absorbance has been established. This study was conducted in order to investigate the impact of different cochlear implant electrodes on middle-ear absorbance using wideband tympanometry. Method: Twenty-four individuals with unilateral cochlear implants underwent wideband tympanometry measurements. Four different groups were formed based on the characteristics of the electrodes used. Results: Significantly lower mean absorbance values were detected in cochlear implanted ears than in the contralateral non-cochlear implanted ears at frequencies of 257, 324, 408, 500, 630, and 794 Hz (p < 0.05). There was no statistically significant difference observed at any frequencies between the groups when comparing the middle ear absorbances of patients with cochlear implants utilizing four different types of electrodes (p > 0.05). Conclusion: Cochlear implantation significantly decreases low-frequency middle ear acoustic absorbance values, indicating potential alterations in middle ear mechanics. However, there was no statistically significant difference observed in absorbance values for different cochlear implant electrode types. Further research with larger cohorts is warranted to understand the post-surgical changes in middle ear mechanics over time and their correlation with hearing outcomes.