Slotted labyrinthotomy approach with customized electrode for patients with common cavity deformity

Area of Science:

• Otolaryngology
• Neurosurgery
• Audiology

Background:

• Cochlear implantation in patients with common cavity deformity (CCD) presents surgical challenges and variable outcomes.
• Traditional facial recess approach (TFRA) may lead to higher complication rates and longer surgical times.

Purpose of the Study:

• To compare surgical time between the traditional facial recess approach (TFRA) and the transmastoid slotted labyrinthotomy approach (TSLA) for cochlear implantation in CCD patients.
• To evaluate audiological outcomes and the impact of customized electrode arrays in this patient group.

Main Methods:

• Retrospective review of 13 cochlear implant (CI) patients with CCD.
• Six patients underwent TFRA with traditional electrodes; seven underwent TSLA with customized electrodes.
• Surgical times, complications, and audiological outcomes (3 months to 2 years post-activation) were analyzed.

Main Results:

• TSLA group exhibited nearly half the mean surgical time compared to the TFRA group (P < .05).
• While mean audiological outcomes were better in the TSLA group, the difference was not statistically significant (P > .05).

Conclusions:

• TSLA is recommended for cochlear implantation in CCD patients due to significantly reduced surgical time.
• Customized electrode arrays may offer additional benefits for audiological outcomes in CCD patients.