Biomedical subjects
Publications and source records attributed to G Hortmann.
From july 1987 through july 1989, we have performed eight extra-cochlear implants for the rehabilitation of bilateral total deafness. In this paper we develop this experience, to give the positive aspects but also the negative ones and we give the reasons why we prefer currently the intra-cochlear implant. However this implant and its method are a good solution in case of an ossified cochlea.
The transcutaneous eight-channel extracochlear implant has undergone continuous revision to simplify the surgical technique, to minimize patient morbidity, and to improve performance. The extracochlear electrode array has been miniaturized so that it can be inserted through the facial recess without disturbing the external auditory canal, tympanic membrane, or malleus. The use of the remote antenna placed around the external auditory canal has greatly increased battery life and patient comfort. With its simplified incisions, the surgical procedure can be performed as out-patient surgery. Preoperative cochlear nerve testing and use of evoked response cochlear nerve testing allow preadjustment of the speech processor. Current features and performance of the implant are discussed.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
We report on our observations following our first cochlear-implant operation in a patient, and have found that the implantation of a single electrode can allow the patient to realize background noise.