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Transcutaneous bone conductive implants in patients with conductive/mixed hearing loss: audiological outcomes in
Giuseppe Magliulo1, Giannicola Iannella1, Marco De Vincentiis1
1a Organi Di Senso Department , Sapienza University of Rome , Rome , Italy.
Background:
Recently, the use of transcutaneous bone conduction implants (BCIs) has been increased. However, scarce data about BCI hearing recovery in noise conditions have been reported.
Objectives:
To investigate the audiological benefits obtained with transcutaneous BCI-Sophono Alpha System in noise conditions. To evaluate post-implantation clinical outcomes and patient satisfaction levels.
Materials And Methods:
Fourteen patients suffering from conductive or mixed hearing loss implanted with the Sophono Alpha System were evaluated. Patients underwent physical examination, free-field pure-tone and speech audiometry both in unaided and aided conditions. The matrix sentence test was employed with fixed noise at 65 dB, and with a fluctuating primary signal, in three different conditions of noise presentations (S0/N0, S0/Ncontra, S0/Nipsi).
Results:
Hearing gain, expressed as the difference between pre-implant AC and post-implant SAS free field, was on average 26.7 dB. The unaided speech recognition score in quiet conditions had a mean value of 64.6%, and improved after SAS implantation, achieving mean values of 98.2%. SRT50 with the matrix sentence test improved in all three conditions of noise presentation.
Conclusions:
Sophono Alpha System devices represent a valid treatment option for hearing rehabilitation of patients with conductive or mixed hearing loss. The audiological results regarding hearing gain in noise conditions were good.
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