Slotted labyrinthotomy approach with customized electrode for patients with common cavity deformity.
OBJECTIVES/HYPOTHESIS
Cochlear implantation for patients with common cavity deformity (CCD) can be difficult, with a higher incidence of intra- and postoperative complications; outcomes with CCD patients are also highly variable. In this study, surgical time was compared between the traditional facial recess approach (TFRA) and the transmastoid slotted labyrinthotomy approach (TSLA). Audiological outcomes and the benefit of using customized electrode arrays for CCD patients are also discussed.


STUDY DESIGN
Retrospective review of 13 cochlear implant (CI) patients with CCD.


METHODS
Six patients were implanted with the TFRA using traditional electrodes, and seven patients were implanted with the TSLA using customized electrodes. Intra- and postoperative complications were reviewed. Audiological outcomes were measured 3 months to 2 years after CI activation.


RESULTS
The mean surgical time for TSLA group was nearly half as long as for the TRFA group (P < .05). Although mean audiological outcomes were better for the TSLA group, there was no significant difference between groups (P > .05).


CONCLUSIONS
For CCD patients, TSLA for cochlear implantation is recommended due to shortened surgical time; customized electrode arrays may be additionally advantageous in terms of audiological outcomes.


LEVEL OF EVIDENCE
4. Laryngoscope, 128:468-472, 2018.
['Wei|Xingmei|X|0000-0001-7188-485X', 'Li|Yongxin|Y|', 'Fu|Qian-Jie|QJ|', 'Gong|Yue|Y|', 'Chen|Biao|B|', 'Chen|Jingyuan|J|', 'Shi|Ying|Y|', 'Su|Qiaotong|Q|', 'Cui|Danmo|D|', 'Liu|Ting|T|']
D000328:Adult D001299:Audiometry D002675:Child, Preschool D019929:Cochlear Implantation D003054:Cochlear Implants D007758:Ear, Inner D004567:Electrodes, Implanted D005072:Evoked Potentials, Auditory D005145:Face D005260:Female D034381:Hearing Loss D006801:Humans D007223:Infant D008297:Male D008416:Mastoid D061646:Operative Time D011184:Postoperative Period D012189:Retrospective Studies D013065:Speech Intelligibility D016896:Treatment Outcome
common cavity deformity Cochlear implantation customized electrode array surgical approach