Achievement of hearing preservation in the presence of an electrode covering the residual hearing region
Open Access
- 5 January 2011
- journal article
- Published by Taylor & Francis Ltd in Acta Oto-Laryngologica
- Vol. 131 (4), 405-412
- https://doi.org/10.3109/00016489.2010.539266
Abstract
With full insertion with a long electrode, hearing preservation can be achieved even in the presence of a long electrode covering the residual hearing region. Advances in developing new atraumatic concepts of electrode design as well as surgical technique have enabled hearing preservation after cochlear implantation surgery, and EAS (electric acoustic stimulation) accompanied with hearing preservation is a new trend for patients with residual hearing at the lower frequencies. However, full insertion with a long/medium electrode and hearing preservation is still a challenging field that calls for discussion. In this study, round window insertion, an atraumatic electrode, and dexamethasone administration were used and atraumaticity (hearing preservation and conservation of vestibular function) was evaluated with full insertion of the electrode. Postoperative evaluation after full insertion of the electrodes showed that hearing at low frequencies was well preserved in all five cases. Combined postoperative imaging with the referential tonotopic map confirmed achievement of full insertion and indicated the corresponding frequencies and the depth of the electrode. Achievement of atraumaticity of round window insertion in the present cases was confirmed from the viewpoint of the minimal drilling time as well as the preserved vestibular function.Keywords
This publication has 15 references indexed in Scilit:
- Evaluation of the usefulness of a silicone tube connected to a microphone in monitoring noise levels induced by drilling during mastoidectomy and cochleostomyActa Oto-Laryngologica, 2010
- Mechanisms of hearing loss from trauma and inflammation: otoprotective therapies from the laboratory to the clinicActa Oto-Laryngologica, 2010
- Genetic background of candidates for EAS (Electric-Acoustic Stimulation)Audiological Medicine, 2010
- Minimizing Intracochlear Trauma during Cochlear ImplantationAdvances in oto-rhino-laryngology, 2009
- Mechanisms of hearing loss from trauma and inflammation: otoprotective therapies from the laboratory to the clinicActa Oto-Laryngologica, 2009
- Combined electro‐acoustic stimulation: a beneficial union?Clinical Otolaryngology, 2008
- Loss of Saccular Function after Cochlear Implantation: The Diagnostic Impact of Intracochlear Electrically Elicited Vestibular Evoked Myogenic PotentialsAudiology and Neurotology, 2008
- Scalar Localization of the Electrode Array After Cochlear ImplantationOtology & Neurotology, 2007
- Outcomes in adults implanted with the FLEXsoftelectrodeActa Oto-Laryngologica, 2007
- Development and Evaluation of an Improved Cochlear Implant Electrode Design for Electric Acoustic StimulationThe Laryngoscope, 2004