scholarly journals Hearing preservation potential after Cochlear-Implantation: comparison of 6 lateral-wall electrode arrays

2019 ◽  
Author(s):  
MC Suhling ◽  
A Lesinski-Schiedat ◽  
T Lenarz ◽  
R Salcher ◽  
M Schüssler ◽  
...  
Keyword(s):  
Cochlear Implantation ◽  
Lateral Wall ◽  
Hearing Preservation ◽  
Electrode Arrays ◽  
Preservation Potential

The Effects of Gusher-Related Intracochlear Pressure Changes on Hearing Preservation in Cochlear Implantation: A Comparative Series

2018 ◽  
Vol 23 (3) ◽  
pp. 181-186 ◽  
Author(s):  
William Crohan ◽  
Jay Krishnaswamy ◽  
Gunesh Rajan
Keyword(s):  
Cochlear Implantation ◽  
Large Change ◽  
Lateral Wall ◽  
Hearing Preservation ◽  
Residual Hearing ◽  
Electrode Arrays ◽  
Significant Drop ◽  
Speech Performance ◽  
Intracochlear Pressure ◽  
Pressure Changes

Aim: To investigate and compare residual hearing preservation between patients based on the presence of intraoperative gusher. Methodology: We retrospectively compared 2 cohorts of cochlear implant recipients significantly distinguished by whether or not they experienced gusher intraoperatively. Patients underwent cochlear implantation using 24-mm lateral wall electrode arrays as well pharmacologic steroid protection. All patients were assessed by a hearing implant MDT. Hearing preservation rates and speech perception outcomes were assessed at 1, 6, 12, 24, 36, 48, and 60 months. Results: The patients with no gusher demonstrated complete hearing preservation. The patients with gusher demonstrated significant postoperative reduction of hearing thresholds, which declined at a significantly higher pace during follow-up. All patients demonstrated significantly better speech performance after cochlear implantation. Conclusion: The present study suggests that intraoperative gusher is associated with a significant drop in residual hearing, both immediately and over time, which may be related to the large change in intracochlear pressure intraoperatively.

Preservation of residual hearing following cochlear implantation: comparison between three surgical techniques

2007 ◽  
Vol 122 (3) ◽  
pp. 246-252 ◽  
Author(s):  
S Berrettini ◽  
F Forli ◽  
S Passetti
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implantation ◽  
Surgical Techniques ◽  
Electrode Array ◽  
Lateral Wall ◽  
Hearing Preservation ◽  
Acoustic Stimulation ◽  
Residual Hearing ◽  
Electrode Arrays ◽  
Electrode Insertion

AbstractThe preservation of residual hearing is becoming a high priority in cochlear implant surgery. It allows better speech understanding and ensures long-lasting and stable performance; it also allows the possibility, in selected cases, of combining electro-acoustic stimulation in the same ear.We present the results of a retrospective study of the conservation of residual hearing in three different groups of patients who had undergone cochlear implantation using three different cochlear implant electrode arrays, combined with three different surgical techniques for the cochleostomy. The study aimed to evaluate which approach allowed greater preservation of residual hearing.The best residual hearing preservation results (i.e. preservation in 81.8 per cent of patients) were achieved with the Contour Advance electrode array, using the Advance Off-Stylet technique and performing a modified anterior inferior cochleostomy; this combination enabled reduced trauma to the lateral wall of the cochlea during electrode insertion.

scholarly journals Current criteria for selecting cochlear implant in deaf patients: a review

2021 ◽  
Vol 9 (1) ◽  
pp. 50
Author(s):  
Santosh Kumar Swain
Keyword(s):  
Hearing Loss ◽  
Cochlear Implant ◽  
Neural Plasticity ◽  
Cochlear Implantation ◽  
Surgical Techniques ◽  
Low Frequency ◽  
Hearing Preservation ◽  
Electrode Arrays ◽  
Profound Hearing Loss ◽  
Unilateral Deafness

Cochlear implantation is indicated in patients with severe to profound hearing loss that cannot be adequately treated by other auditory rehabilitation measures. The definitive indication of cochlear implantation is made on the basis of an extensive interdisciplinary clinical, audiological, radiological, and psychological diagnostic work-up. There are numerous changes are happening in cochlear implant candidacy. These have been associated with concomitant changes in surgical techniques, which enhanced the utility and safety of cochlear implantation. Currently, cochlear implants are approved for individuals with severe to profound unilateral hearing loss rather than previously needed for bilateral profound hearing loss. Studies have begun using the short electrode arrays for shallow insertion in patients with low-frequency residual hearing loss. The advancement in designs of the cochlear implant along with improvements in surgical techniques reduce the complications and result in the safety and efficacy of the cochlear implant which further encourages the use of these devices. This review article aims to discuss the new concepts in the candidacy of the cochlear implant, cochlear implant in younger children and hearing preservation, a cochlear implant for unilateral deafness, bilateral cochlear implant, and cochlear implant with neural plasticity and selection of patients for the cochlear implant.

Slim Perimodiolar Arrays Are as Effective as Slim Lateral Wall Arrays for Functional Hearing Preservation After Cochlear Implantation

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Erika Woodson ◽  
Molly Smeal ◽  
Rebecca C. Nelson ◽  
Thomas Haberkamp ◽  
Sarah Sydlowski
Keyword(s):  
Cochlear Implantation ◽  
Lateral Wall ◽  
Hearing Preservation

Hearing Preservation after Cochlear Implantation Using Deeply Inserted Flex Atraumatic Electrode Arrays

2012 ◽  
Vol 17 (5) ◽  
pp. 331-337 ◽  
Author(s):  
Sharon Tamir ◽  
Evelyne Ferrary ◽  
Stéphanie Borel ◽  
Olivier Sterkers ◽  
Alexis Bozorg Grayeli
Keyword(s):  
Cochlear Implantation ◽  
Hearing Preservation ◽  
Electrode Arrays

Intraoperative Intracochlear Electrocochleography and Residual Hearing Preservation Outcomes When Using Two Types of Slim Electrode Arrays in Cochlear Implantation

2019 ◽  
Vol 40 ◽  
pp. S29-S37 ◽  
Author(s):  
Angel Ramos-Macias ◽  
Stephen O’Leary ◽  
Angel Ramos-deMiguel ◽  
Christo Bester ◽  
Juan C. Falcon-González
Keyword(s):  
Cochlear Implantation ◽  
Hearing Preservation ◽  
Residual Hearing ◽  
Electrode Arrays

Electrode Migration in Patients with Perimodiolar Cochlear Implant Electrodes

2015 ◽  
Vol 20 (6) ◽  
pp. 349-353 ◽  
Author(s):  
Philipp Mittmann ◽  
Grit Rademacher ◽  
Sven Mutze ◽  
Arneborg Ernst ◽  
Ingo Todt
Keyword(s):  
Cochlear Implant ◽  
Cochlear Implantation ◽  
Electrode Array ◽  
Lateral Wall ◽  
Electrode Arrays ◽  
Insertion Depth ◽  
Lower Extent ◽  
Uncommon Complication

Migration of a cochlear implant electrode is a hitherto uncommon complication. So far, array migration has only been observed in lateral wall electrodes. Between 1999 and 2014, a total of 27 patients received bilateral perimodiolar electrode arrays at our institution. The insertion depth angle was estimated on the initial postoperative scans and compared with the insertion depth angle of the postoperative scans performed after contralateral cochlear implantation. Seven (25.93%) patients were found to have an electrode array migration of more than 15°. Electrode migration in perimodiolar electrodes seems to be less frequent and to occur to a lower extent than in lateral wall electrodes. Electrode migration was clinically asymptomatic in all cases.

scholarly journals Hearing preservation potential of different cochlear implant electrodes: Perimodiolar versus Lateral-Wall

2018 ◽  
Author(s):  
MC Suhling ◽  
R Salcher ◽  
A Lesinski-Schiedat ◽  
T Lenarz ◽  
M Schüssler
Keyword(s):  
Cochlear Implant ◽  
Lateral Wall ◽  
Hearing Preservation ◽  
Preservation Potential
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