Outcome of cochlear implantation in children with cochlear malformations

Bille, Jesper; Fink-Jensen, Vibeke; Ovesen, Therese

doi:10.1007/s00405-014-2883-z

Cited by 29 publications

(23 citation statements)

References 29 publications

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“…Fifty-nine articles (date range: 1993-2015) were included in this systematic review, of which 23 studies 11-33 had SP data and 57 studies 11-29,32…”

Section: Resultsmentioning

confidence: 99%

Cochlear Implantation in Inner Ear Malformations: Systematic Review of Speech Perception Outcomes and Intraoperative Findings

Farhood

Nguyen

Miller

et al. 2017

Otolaryngol.--head neck surg.

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Objective (1) To analyze reported speech perception outcomes in patients with inner ear malformations who undergo cochlear implantation, (2) to review the surgical complications and findings, and (3) to compare the 2 classification systems of Jackler and Sennaroglu. Data Sources PubMed, Scopus (including Embase), Medline, and CINAHL Plus. Review Methods Fifty-nine articles were included that contained speech perception and/or intraoperative data. Cases were differentiated depending on whether the Jackler or Sennaroglu malformation classification was used. A meta-analysis of proportions examined incidences of complete insertion, gusher, and facial nerve aberrancy. For speech perception data, weighted means and standard deviations were calculated for all malformations for short-, medium-, and long-term follow-up. Speech tests were grouped into 3 categories-closed-set words, open-set words, and open-set sentences-and then compared through a comparison-of-means t test. Results Complete insertion was seen in 81.8% of all inner ear malformations (95% CI: 72.6-89.5); gusher was reported in 39.1% of cases (95% CI: 30.3-48.2); and facial nerve anomalies were encountered in 34.4% (95% CI: 20.1-50.3). Significant improvements in average performance were seen for closed- and open-set tests across all malformation types at 12 months postoperatively. Conclusions Cochlear implantation outcomes are favorable for those with inner ear malformations from a surgical and speech outcome standpoint. Accurate classification of anatomic malformations, as well as standardization of postimplantation speech outcomes, is necessary to improve understanding of the impact of implantation in this difficult patient population.

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“…Fifty-nine articles (date range: 1993-2015) were included in this systematic review, of which 23 studies 11-33 had SP data and 57 studies 11-29,32…”

Section: Resultsmentioning

confidence: 99%

Cochlear Implantation in Inner Ear Malformations: Systematic Review of Speech Perception Outcomes and Intraoperative Findings

Farhood

Nguyen

Miller

et al. 2017

Otolaryngol.--head neck surg.

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“…Bille et al [14] compared the results of cochlear implantation in children with normal inner ear with those with inner ear malformations. The main outcome measures were category of auditory performance (CAP) and speech intelligibility rating (SIR).…”

Section: Discussionmentioning

confidence: 99%

Cochlear Implantation in Children with Anomalous Cochleovestibular Anatomy: Our Experience

Grover

Sharma

Bhargava

et al. 2017

Indian J Otolaryngol Head Neck Surg

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To report operative findings, postoperative course, and postimplantation performance in patients with cochlear malformations who underwent cochlear implantation. Seventeen patients with malformations which included enlarged vestibular aqueduct (n = 6), Mondini's dysplasia (n = 5) common cavity deformity (n = 3) and incomplete partition type 2 (n = 3) underwent cochlear implantation with Nucleus 22 straight array device at our center. Operative findings described facial nerve anatomy and cerebrospinal fluid leak. Standard tests of speech perception were used to evaluate the postoperative performance for each subject. Operative findings included cerebrospinal fluid leak (thirteen patients) all of which were repaired successfully with graft. None had abnormal facial nerve anatomy. No surgical complications occurred. All the patients except two with common cavity had complete insertion. Electrode thresholds and discomfort levels were variable for several months after implantation. All patients demonstrated improved performance after implantation. Patients with enlarged vestibular aqueduct fared better than patients with other inner ear malformations. Cochlear implantation can be a successful method of rehabilitation in patients with congenital deafness who have cochlear malformations.

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“…This is in keeping with the literature, which finds a significant benefit of CI for patients with cochlear malformations [Mylanus et al, 2004;Sennaroglu, 2010;Rachovitsas et al, 2012;Bille et al, 2015;Kamogashira et al, 2016]. This study is limited by the small cohort size, so no conclusions can be made regarding hearing preservation in specific cochlear malformations.…”

Section: Discussionmentioning

confidence: 49%

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

2018

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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.

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Outcome of cochlear implantation in children with cochlear malformations

Cited by 29 publications

References 29 publications

Cochlear Implantation in Inner Ear Malformations: Systematic Review of Speech Perception Outcomes and Intraoperative Findings

Cochlear Implantation in Inner Ear Malformations: Systematic Review of Speech Perception Outcomes and Intraoperative Findings

Cochlear Implantation in Children with Anomalous Cochleovestibular Anatomy: Our Experience

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

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