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Effects of cochlear implant surgical technique on post-operative electrode impedance.
- Source :
-
Acta Oto-Laryngologica . Jul2016, Vol. 136 Issue 7, p677-681. 5p. - Publication Year :
- 2016
-
Abstract
- Conclusions: The mCI surgical technique led to reduced impedance and minimized disturbance of the microenvironment inside the cochlea. Atraumatic surgical techniques and inflammation-reduction strategies may preserve the cochlear architecture and prevent fibrotic development.Objectives: To assess the advantages of a modified minimal access technique in cochlear implantation as well as to investigate the effects of intra-operative application of inflammation reduction strategies on the intra-cochlear impedance.Methods: One hundred patients received a 31.5 mm long Med-El standard electrode array fully inserted into the cochlea and did not have surgical complications post-operation. Patients were divided into two groups according to the surgical technique that was used for implantation: 50 were in the modified minimal access cochlear implant (mCI) surgery group and 50 were in the traditional CI surgery group. Intra-cochlear impedance values were measured at initial activation (4 weeks post-operatively). Electrode impedance values were compared between the surgery groups.Results: Electrode impedance values were significantly lower in the mCI group than in the CI surgery group at initial activation (5.01 kOhm vs 6.10 kOhm, respectively,F = 13.761,p = 0.000). The differences between the two groups were most prominent for the electrodes located at the basal region of the cochlea. [ABSTRACT FROM PUBLISHER]
- Subjects :
- *INFLAMMATION prevention
*ANALYSIS of variance
*COCHLEAR implants
*COMPARATIVE studies
*EAR surgery
*ELECTRODES
*ENDOSCOPIC surgery
*BIOELECTRIC impedance
*HEALTH outcome assessment
*POSTOPERATIVE period
*PROBABILITY theory
*RESEARCH funding
*STATISTICS
*DATA analysis
*REPEATED measures design
*RETROSPECTIVE studies
*DATA analysis software
*DESCRIPTIVE statistics
Subjects
Details
- Language :
- English
- ISSN :
- 00016489
- Volume :
- 136
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Acta Oto-Laryngologica
- Publication Type :
- Academic Journal
- Accession number :
- 115995276
- Full Text :
- https://doi.org/10.3109/00016489.2016.1143967