2.Cochlear electrode array misplacement into the superior semicircular canal: a case report and literature review.
Chen SUN ; Zhenghua HUANG ; Yingxue MA ; Ye GU ; Qi LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2023;37(4):310-312
Electrode array misplacement is a rare complication of cochlear implant. This article reports an 11-year-old boy who was mistakenly implanted the cochlear electrode array into the superior semicircular canal during the initial cochlear implant. After the diagnosis was confirmed, he underwent a second cochlear implant and the electrode array were successfully implanted into the cochlea. This article conducted a systematic review of the literature on electrode array misplacement, and the causes of electrode array misplacement were analyzed from different implantation position.
Male
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Humans
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Child
;
Electrodes, Implanted
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Reoperation
;
Cochlea
;
Cochlear Implantation
;
Cochlear Implants/adverse effects*
;
Semicircular Canals/surgery*
3.Long-term Outcome of Cochlear Implant in Patients with Chronic Otitis Media: One-stage Surgery Is Equivalent to Two-stage Surgery.
Jeong Hun JANG ; Min Hyun PARK ; Jae Jin SONG ; Jun Ho LEE ; Seung Ha OH ; Chong Sun KIM ; Sun O CHANG
Journal of Korean Medical Science 2015;30(1):82-87
This study compared long-term speech performance after cochlear implantation (CI) between surgical strategies in patients with chronic otitis media (COM). Thirty patients with available open-set sentence scores measured more than 2 yr postoperatively were included: 17 who received one-stage surgeries (One-stage group), and the other 13 underwent two-stage surgeries (Two-stage group). Preoperative inflammatory status, intraoperative procedures, postoperative outcomes were compared. Among 17 patients in One-stage group, 12 underwent CI accompanied with the eradication of inflammation; CI without eradicating inflammation was performed on 3 patients; 2 underwent CIs via the transcanal approach. Thirteen patients in Two-stage group received the complete eradication of inflammation as first-stage surgery, and CI was performed as second-stage surgery after a mean interval of 8.2 months. Additional control of inflammation was performed in 2 patients at second-stage surgery for cavity problem and cholesteatoma, respectively. There were 2 cases of electrode exposure as postoperative complication in the two-stage group; new electrode arrays were inserted and covered by local flaps. The open-set sentence scores of Two-stage group were not significantly higher than those of One-stage group at 1, 2, 3, and 5 yr postoperatively. Postoperative long-term speech performance is equivalent when either of two surgical strategies is used to treat appropriately selected candidates.
Adult
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Aged
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Cholesteatoma, Middle Ear/epidemiology
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Chronic Disease/therapy
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Cochlear Implantation/*adverse effects
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Cochlear Implants/*adverse effects
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Female
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Hearing Loss, Sensorineural/*surgery
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Humans
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Inflammation/epidemiology
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Male
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Middle Aged
;
Otitis Media/*surgery
;
Retrospective Studies
;
*Speech Articulation Tests
;
Treatment Outcome
;
Young Adult