The Relation of Cochlear Implant Electrode Array Type and Position on Continued Hearing Preservation
Objective
To analyze the relationship of electrode array (EA) type and position on hearing preservation longevity following cochlear implantation.
Study Design
Retrospective chart review.
Setting
Tertiary referral center.
Patients
Adult cochlear implant recipients between 2013 and 2019 with hearing preserved postoperatively and postoperative CT scans.
Interventions
CT scan analysis of EA position. Stepwise regression to determine influence of EA position, EA type, and patient demographics on postoperative low frequency hearing.
Main Outcome Measures
Low frequency pure tone average (LFPTA), LFPTA shift, angular insertion depth, base insertion depth, scalar position, mean perimodiolar distance.
Results
Of 792 cochlear implant recipients, 121 had preoperative LFPTA
Source: Otology and Neurotology - Category: ENT & OMF Tags: Cochlear Implants Source Type: research