OBJECTIVES: Extra-cochlear electrodes (EEs) are a frequent complication in cochlear implant (CI) surgery, potentially leading to reduced speech-perception outcomes. Standard intraoperative tools such as contact impedances and electrically evoked compound action potentials often fail to detect these misplaced electrodes....
✦ The floor
Discussion
Signed responses from readers of the wire.
This voltage-based intraoperative technique may offer a real-time, non-imaging method to detect extra-cochlear electrode placement during CI surgery; surgeons should monitor further validation studies before adopting it as a standard check.
Reliable intraoperative detection of misplaced cochlear implant electrodes could reduce revision surgeries and improve outcomes for implant recipients.
- 01Uses stimulation current-induced voltages on non-stimulating electrodes to flag extra-cochlear placement.
- 02Method is applied intraoperatively, enabling real-time surgical decision-making.
- 03Extra-cochlear electrodes are a known cause of suboptimal cochlear implant outcomes.
- 04Could complement or reduce reliance on intraoperative imaging.
- 05Published in Ear and Hearing (DOI: 10.1097/AUD.0000000000001864).
Stimulation current-induced non-stimulating electrode voltages can visually identify extra-cochlear electrodes during cochlear implant surgery.
studypartially supportedThe technique provides intraoperative (during surgery) real-time information about electrode placement.
studypartially supported- PMID
- 42507807
- DOI
- 10.1097/AUD.0000000000001864.
- Journal
- Ear and Hearing
- Publication type
- research_article
- Evidence level
- 4
- Population
- Patients undergoing cochlear implant surgery
- Intervention
- Intraoperative measurement of stimulation current-induced non-stimulating electrode voltages to identify extra-cochlear electrodes
Primary outcomes
Visual identification accuracy of extra-cochlear electrode placement using non-stimulating electrode voltage signals