Sound Localization in Patients With Congenital Unilateral Conductive Hearing Loss With a Transcutaneous Bone Conduction Implant

Vyskocil, Erich; Liepins, Rudolfs; Kaider, Alexandra; Blineder, Michaela; Hamzavi, Sasan

doi:10.1097/mao.0000000000001328

Cited by 29 publications

(39 citation statements)

References 25 publications

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“…The preoperative and postoperative results can be seen in the S2 Table. Speech understanding in quiet was assessed in 27 publications [16, 26, 27, 7, 28, 22, 29, 24, 30, 10, 31, 25, 32–34, 18, 12, 13, 35, 36, 20, 14, 37, 38, 21, 39], resulting in a mean unaided WRS score of 25.73±23.64% improving to 84.48±15.09% in the aided condition, resulting in an overall mean improvement of almost 60% (S2 Table).…”

Section: Resultsmentioning

confidence: 99%

“…Results for speech in noise tests could not be compared directly in a meta-analysis due to the individual test set-up and inconsistency in reporting for the different studies. However, an improvement in speech understanding in noise was observed with the atBCI in all studies for subjects with CHL or MHL (S2 Table) [23, 8, 13, 20, 38, 21].…”

Section: Resultsmentioning

confidence: 99%

“…Mean aided signal-to-noise ratio (SNR) values in a total of 54 individuals with CHL and MHL were found to range from +2.9 dB to -6.1 dB SNR, compared to + 11.5 to -3.8 SNR unaided [7, 40, 41, 33, 42, 43]. Studies that investigated a setting in which speech was presented from a loudspeaker in front of the patient reported an average improvement in SNR of 5.5 dB [7, 41, 33, 42, 43]. Looking at individual data, large variability was observed between individuals, but outcomes were always in favour of the atBCI-aided condition.…”

Section: Resultsmentioning

confidence: 99%

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Active transcutaneous bone conduction hearing implants: Systematic review and meta-analysis

et al. 2019

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BackgroundIn July 2018 the active transcutaneous bone conduction hearing implant received FDA approval in the US (for patients 12 years and older with conductive and/or mixed hearing loss or single-sided deafness), reflecting the current trend of moving away from percutaneous hearing solutions towards intact skin systems.ObjectivesTo critically assess the current literature on safety, efficacy and subjective benefit after implantation with an active transcutaneous bone conduction hearing device.Data sourcesLiterature investigation was performed by electronic database search including PubMed and Cochrane Central Register of Controlled Trials, and manual search of relevant journals and reference lists of included studies.Study eligibility criteriaRandomized controlled trials, clinical controlled trials and cohort studies, case series and case reports investigating subjective and objective outcomes.Study appraisal and synthesis methodsRetrieved literature was screened and extracted by two reviewers independently. Subgroup analysis of indications (conductive and/or mixed hearing loss, single-sided deafness) and participant ages (pediatric vs. adults) was conducted on patients with active transcutaneous bone conduction devices. Sensitivity analysis was performed to test the stability of the results in meta-analysis.Results39 citations reporting on pre- and postoperative audiological results, speech performance in quiet and in noise, localization testing as well as subjective outcomes were included in this systematic review. Functional gain as well as word recognition score outcomes could be further investigated via meta-analysis. All outcomes reported and summarized here reflect beneficial audiological performance and high patient satisfaction, accompanied with a low complications rate (minor event incidence rate: 9.9 person-years; major incidence rate: 148.9 person-years) for the indications of conductive and mixed hearing loss as well as in individuals suffering from single-sided deafness for all age groups of subjects who underwent active transcutaneous bone conduction hearing device implantation.LimitationsA limiting factor of this systematic review was the Level of Evidence of the reviewed literature, comprising 2a/3a studies (cohort studies and case-control studies). Furthermore, the reporting standards, especially in outcomes such as word recognition scores in quiet and in noise, vary across study cites from various countries, which impedes comparisons. Last but not least, no other comparable other device was retrieved as the active transcutaneous bone conduction hearing device is the only available at the moment.ConclusionThe device’s transcutaneous technology results in a minor event incidence rate of one in 9.9 person-years and a major incidence rate of one in 148.9 person-years. Based on the audiological outcomes, high patient satisfaction as well as the low complication rate, the authors recommend the active transcutaneous bone conduction hearing device as a safe and effective treatment for patients sufferi...

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Active transcutaneous bone conduction hearing implants: Systematic review and meta-analysis

et al. 2019

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“…Quantitative research methods were used in all of them. Seven of the studies handled outcomes of different types of auditory implants (three concerned cochlear implantation), but the methods used to measure unaided preoperative hearing were not consistent across the studies ( [67][68][69][70][71][72][73]. The rest of the studies dealt with various aspects of UHI, such as narrative skills and the neurofunctional organization of reading.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

The impact of permanent early-onset unilateral hearing impairment in children – A systematic review

Huttunen

Erixon

Löfkvist

et al. 2019

International Journal of Pediatric Otorhinolaryngology

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Background: Decision-making on treatment and (re)habilitation needs to be based on clinical expertise and scientific evidence. Research evidence for the impact of permanent unilateral hearing impairment (UHI) on children's development has been mixed and, in some of the reports, based on fairly small, heterogeneous samples. Additionally, treatment provided has been highly variable, ranging from no action taken or watchful waiting up to single-sided cochlear implantation. Published information about the effects of treatment has also been heterogeneous. Moreover, earlier reviews and meta-analyses published on the impact of UHI on children's development have generally focused on select areas of development. Objectives: This systematic review aimed to summarize the impact of children's congenital or early onset unilateral hearing impairment on listening and auditory skills, communication, speech and language development, cognitive development, educational achievements, psycho-social development, and quality of life. Methods: Literature searches were performed to identify reports published from inception to February 16th, 2018 with the main electronic bibliographic databases in medicine, psychology, education, and speech and hearing sciences as the data sources. PubMed, CINALH, ERIC, LLBA, PsychINFO, and ISI Web of Science were searched for unilateral hearing impairment with its synonyms and consequences of congenital or early onset unilateral hearing impairment. Eligible were articles written in English, German, or Swedish on permanent unilateral hearing impairments that are congenital or with onset before three years of age. Hearing impairment had to be of at least a moderate degree with PTA ≥ 40 dB averaged over frequencies 0.5 to 2 or 0.5 to 4 kHz, hearing in the contralateral ear had to have PTA 0.5-2 kHz or PTA 0.5-4 kHz ≤ 20 dB, and consequences of unilateral hearing impairment needed to be reported in an unanimously defined population in at least one of the areas the review focused on. Four researchers independently screened 1,618 abstracts and 566 full-text articles for evaluation of study eligibility. Eligible full-text articles were then reviewed to summarize the results and assess the quality of evidence. Additionally, data from 13 eligible case and multi-case studies, each having less than 10 participants, were extracted to summarize their results. Quality assessment of evidence was made adapting the Grades of Recommendations, Assessment, Development, and Evaluation (GRADE) process, and reporting of the results adheres to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) standards. Results: Three articles with the quality of evidence graded as very-low to low, fulfilled the eligibility criteria set. Due to the heterogeneity of the articles, only a descriptive summary could be generated from the results. Unilateral hearing impairment was reported to have a negative impact on preverbal vocalization of infants and on sound localization and speech perception both in quiet and in n...

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“…Attempts to effectively restore hearing in these patients have included surgical implantation of percutaneous BC implants. Although effective, safe, and well-established in the market, they were associated with a significant number of post-operative complications leading to revision surgery 3. In an extensive series of patients (n=602) over a 20-year period, Hobson et al4 reported a complication rate of 24% and a revision surgery rate of 12%.…”

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confidence: 99%

Objective and subjective results of the Bonebridge transcutaneous active direct-drive bone conduction hearing implant

Alzhrani

2019

SMJ

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Objectives: To investigate the effectiveness of a bone-anchored hearing implant system (Bonebridge implant technology) as a rehabilitation treatment for individuals with conductive or mixed hearing losses. Methods: This is a retrospective cohort study. Twelve implanted ears with conductive or mixed hearing losses were implanted with this device at a tertiary university hospital between 2012 and 2016. Audiological tests included pure tone air conduction (AC) and bone conduction (BC) measurements and unaided and aided sound-field thresholds. To evaluate the speech intelligibility in a quiet environment, the speech discrimination score (SDS) was tested using Arabic monosyllabic words, and the speech reception threshold (SRT) was measured using Arabic disyllabic words spoken in front of them. The subjective sound quality was assessed with the Hearing Implant Sound Quality Index (HISQUI). Results: In comparison with the unaided condition, there was a significant improvement in the aided thresholds, SDS, and SRT. Comparing the aided and unaided thresholds, the average AC threshold improved with an average functional gain of 40±6.3dB. The unaided SRT improved from 72.5 dB hearing levels (HL)(median) to 27.5 dB HL (median) when aided, and patients performed 71% better, on average, based on the SDS with the help of the device. The HISQUI questionnaire revealed high satisfaction with the device sound quality. Conclusion: Patients with conductive and mixed hearing loss substantially benefit from the Bonebridge active transcutaneous BC hearing implant.

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Sound Localization in Patients With Congenital Unilateral Conductive Hearing Loss With a Transcutaneous Bone Conduction Implant

Cited by 29 publications

References 25 publications

Active transcutaneous bone conduction hearing implants: Systematic review and meta-analysis

Active transcutaneous bone conduction hearing implants: Systematic review and meta-analysis

The impact of permanent early-onset unilateral hearing impairment in children – A systematic review

Objective and subjective results of the Bonebridge transcutaneous active direct-drive bone conduction hearing implant

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