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The Role of Electrode Placement in Bilateral Simultaneously Cochlear‐Implanted Adult Patients
- Source :
- Otolaryngology-Head and Neck Surgery, Otolaryngology-Head and Neck Surgery, 2016, 155 (3), pp.485-493. ⟨10.1177/0194599816645774⟩, Otolaryngology-Head and Neck Surgery, SAGE Publications (UK and US), 2016, 155 (3), pp.485-493. ⟨10.1177/0194599816645774⟩
- Publication Year :
- 2016
- Publisher :
- Wiley, 2016.
-
Abstract
- International audience; OBJECTIVE: To evaluate the influence of the electrode placement on hearing performance in adult patients who were simultaneously and bilaterally cochlear implanted. STUDY DESIGN: Case series with planned data collection. SETTING: Tertiary referral university centers. SUBJECTS AND METHODS: The postoperative computed tomography scan was studied for 19 patients who were simultaneously and bilaterally implanted with a long straight electrode array. The size of the cochlea was measured in consideration of the major cochlear diameter and cochlear height. The electrode-to-modiolus distance for the electrodes positioned at 180 and 360 degrees and the angular depth of insertion of the array were also measured. Speech perception was assessed at 1 and 5 years postimplantation with disyllabic word lists in quiet and in noise, with the speech coming from the front and a background noise (cocktail party) coming from 5 loudspeakers. RESULTS: At 1 year postimplantation, the electrode-to-modiolus distance at 180 degrees was correlated with the speech perception scores in both quiet and noise. In patients with a full electrode insertion, no correlation was found between the angular depth of insertion and hearing performance. The speech perception scores in noise gradually declined as a function of the number of inserted and active electrodes. No relationship between electrode position and speech perception scores was found at 5 years postimplantation. CONCLUSION: In adult patients who were simultaneously and bilaterally implanted, the use of a long straight array, the full electrode array insertion, and the proximity to the modiolus might be determining factors to obtain the best speech performance at 1 year, without influence on the speech perception scores after long-term use.
- Subjects :
- Adult
Male
medicine.medical_specialty
Speech perception
medicine.medical_treatment
Audiology
electrode position
Background noise
03 medical and health sciences
0302 clinical medicine
Cochlear implant
otorhinolaryngologic diseases
medicine
Electrode array
Humans
bilateral implantation
030223 otorhinolaryngology
Cochlea
Aged
angular depth of insertion
cochlear implant
cochlear size
speech perception
[SDV.IB] Life Sciences [q-bio]/Bioengineering
business.industry
Hearing Tests
Middle Aged
Cochlear Implantation
Electrodes, Implanted
Noise
Cochlear Implants
Treatment Outcome
Modiolus (cochlea)
Otorhinolaryngology
QUIET
Speech Perception
Female
[SDV.IB]Life Sciences [q-bio]/Bioengineering
Surgery
Tomography, X-Ray Computed
business
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 10976817 and 01945998
- Volume :
- 155
- Database :
- OpenAIRE
- Journal :
- Otolaryngology–Head and Neck Surgery
- Accession number :
- edsair.doi.dedup.....95fc9ccd0e4c7ad1283608961bf30917