Depth of Cochlear Implant Array Within the Cochlea and Performance Outcome. (November 2016)
- Record Type:
- Journal Article
- Title:
- Depth of Cochlear Implant Array Within the Cochlea and Performance Outcome. (November 2016)
- Main Title:
- Depth of Cochlear Implant Array Within the Cochlea and Performance Outcome
- Authors:
- Hilly, Ohad
Smith, Leah
Hwang, Euna
Shipp, David
Symons, Sean
Nedzelski, Julian M.
Chen, Joseph M.
Lin, Vincent Y.W. - Abstract:
- Objective: To evaluate whether the depth of cochlear implant array within the cochlea affects performance outcomes 1 year following cochlear implantation. Methods: A retrospective case review of 120 patients who were implanted with the Advanced Bionics HiFocus 1J. Post-implantation plain-radiographs were retrospectively reviewed, and the depth of insertion was measured in degrees from the round window to the electrode tip. Correlation between the depth of insertion and 1-year post-activation Hearing in Noise Test (HINT) scores was analyzed. Intrascala position was not assessed. Results: Depth of electrode insertion ranged from 180° to 720°, and HINT scores ranged from 0% to 100%. A Mann-Whitney U test demonstrated significantly improved 1-year post-activation HINT scores in patients with an insertion depth of 360° or more in comparison with patients with insertion depth of less than 360° (81% vs 61%, P = .048). Patients with 13 to 15 contacts within cochlear turns performed as well as patients with full insertion of all 16 contacts, while patients with only 12 contacts performed poorly. Conclusions: Insertion depth of the AB HiFocus 1J electrode of less than 360° is associated with reduced 1-year post-activation HINT scores when compared with deeper insertions. Partial insertion of 13 active contacts or more led to similar results as full insertion.
- Is Part Of:
- Annals of otology, rhinology & laryngology. Volume 125:Number 11(2016:Nov.)
- Journal:
- Annals of otology, rhinology & laryngology
- Issue:
- Volume 125:Number 11(2016:Nov.)
- Issue Display:
- Volume 125, Issue 11 (2016)
- Year:
- 2016
- Volume:
- 125
- Issue:
- 11
- Issue Sort Value:
- 2016-0125-0011-0000
- Page Start:
- 886
- Page End:
- 892
- Publication Date:
- 2016-11
- Subjects:
- cochlear implantation -- depth of insertion -- outcome -- hearing in noise test -- cochlear implant trials
Otolaryngology -- Periodicals
617.51 - Journal URLs:
- http://aor.sagepub.com/ ↗
http://www.sagepublications.com/ ↗
http://www.Annals.com/ ↗ - DOI:
- 10.1177/0003489416660111 ↗
- Languages:
- English
- ISSNs:
- 0003-4894
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 6973.xml