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Updated: Jun 11, 2026

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Performing Intracochlear Electrocochleography During Cochlear Implantation
Published on: March 8, 2022
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"Repository of Cochlear Implant Information:" A Multi-Institutional REDCap Database
Russell A Whitehead1, Elias Michaelides1
1Department of Otolaryngology-Head and Neck Surgery, Rush University Medical Center, Chicago, IL 60612, United States of America.
American Journal of Otolaryngology
|November 17, 2023
Summary
Body Mass Index (BMI) does not significantly impact cochlear implant surgery duration or patient outcomes. This finding supports BMI not being a contraindication for cochlear implant procedures.
Area of Science:
- Otolaryngology
- Medical Informatics
- Biostatistics
Background:
- Cochlear implantation is a complex procedure.
- Understanding patient factors influencing surgical outcomes is crucial.
- Establishing robust data repositories is essential for medical research.
Purpose of the Study:
- To establish a multi-center cochlear implant database (ROCII) for future research.
- To investigate the association between Body Mass Index (BMI) and cochlear implant surgical time.
- To evaluate the impact of BMI on postoperative hearing outcomes.
Main Methods:
- A retrospective database (ROCII) was created using REDCap.
- De-identified patient data from cochlear implant surgeries were collected.
- Patients were stratified into BMI groups (<25, 25.0-29.9, ≥30.0).
- Surgical times and AZBio Sentence Test scores were analyzed using mixed-effects models.
Main Results:
- Mean BMI was 28.52 in 145 patients.
- No statistically significant differences in surgical time were observed across BMI groups (p=0.4727).
- No significant differences in postoperative AZBio score changes were found between BMI groups (p=0.5847, p=0.0637).
Conclusions:
- BMI is not significantly associated with cochlear implant surgical time or postoperative outcomes.
- BMI should not be considered a contraindication for cochlear implantation.
- The ROCII database will aid in understanding cochlear implant patient experiences and outcomes.

