Two Cases of Electrode Kinking in Cochlear Implantation.
10.3342/kjorl-hns.2016.16677
- Author:
Saehee LIM
1
;
Hyunjung KIM
;
Jae Hyung KIM
;
Gi Jung IM
Author Information
1. Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Korea University, Seoul, Korea. earkorea@gmail.com
- Publication Type:Case Report
- Keywords:
Cochlea;
Cochlear implantation;
Electrode;
Ossificaition
- MeSH:
Cochlea;
Cochlear Implantation*;
Cochlear Implants*;
Cochlear Nerve;
Electric Impedance;
Electrodes*;
Fibrosis;
Humans;
Membranes;
Telemetry
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2017;60(10):527-530
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Less traumatic electrode insertion along the basal turn of cochlea is essential to cochlear implantation. However, immoderate attempts to insert the electrode beyond the point of resistance can result in electrode kinking within the basal turn of cochlea. Electrode kinking tends to occur 1) in the use of contour or hugging type of electrode, 2) in the cochlear ossification or fibrosis, and 3) in wrong angle insertion in the approach of round window membrane or cochleostomy near the round window. Intra-operative radiologic evaluation and intra-operative measurement of the neural response telemetry or auditory nerve response telemetry during cochlear implantation is essential to check the status and proper insertion of electrode. Recently, we experienced two cases of electrode kinking in cochlear implantation and discovered that both patients showed abnormal impedances and crumpled electrode in X-ray. Based on these cases, we suggest routine impedance and radiologic measurement during the cochlear implantation.
