579 results match your criteria Implantable Hearing Devices


Surgical and functional outcomes of cochlear implantation in post-lingual and cross-over patients: First 5-year review of the National Ministry of Health Malaysia cochlear implant programme.

Med J Malaysia 2018 Dec;73(6):393-396

Hospital Sultan Ismail, Department of Otolaryngology, Johor Bharu, Malaysia.

Introduction: There has been a paradigm shift in the management of acquired sensory neural deafness in the past 30years. This is due to the emergence of implantable hearing devices such as the cochlear implant. The objective of this study is to identify surgical and functional outcomes of post-lingual and cross-over patients implanted with a cochlear implant under the National Ministry of Heath Cochlear Implant (CI) Program between 2009-2013. Read More

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December 2018

Sphingosine 1-phosphate-mediated activation of ezrin-radixin-moesin proteins contributes to cytoskeletal remodeling and changes of membrane properties in epithelial otic vesicle progenitors.

Biochim Biophys Acta Mol Cell Res 2019 Jan 3;1866(4):554-565. Epub 2019 Jan 3.

Department of Experimental and Clinical Biomedical Sciences "M. Serio", University of Florence, viale GB Morgagni 50, 50134 Florence, Italy. Electronic address:

Hearing loss is among the most prevalent sensory impairments in humans. Cochlear implantable devices represent the current therapies for hearing loss but have various shortcomings. ERM (ezrin- radixin -moesin) are a family of adaptor proteins that link plasma membrane with actin cytoskeleton, playing a crucial role in cell morphology and in the formation of membrane protrusions. Read More

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http://dx.doi.org/10.1016/j.bbamcr.2018.12.007DOI Listing
January 2019

Age-dependent variations of scalp thickness in the area designated for a cochlear implant receiver stimulator.

Laryngoscope Investig Otolaryngol 2018 Dec 29;3(6):496-499. Epub 2018 Oct 29.

Department of Otolaryngology Head, Neck and Maxillofacial Surgery, Tel-Aviv Sourasky Medical Center, Sackler School of Medicine Tel-Aviv University Tel-Aviv Israel.

Objective: The integrity of the scalp overlying a cochlear implant receiver stimulator (RS) is critical for the long-term survival of the implant. Exposure or extrusion of the device will likely result in the need for its removal. There is a global trend of acceleration of population aging, thus raising the prevalence of cochlear implantation (CI) in the elderly. Read More

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http://dx.doi.org/10.1002/lio2.218DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6302726PMC
December 2018

Speech Perception with Spectrally Non-overlapping Maskers as Measure of Spectral Resolution in Cochlear Implant Users.

J Assoc Res Otolaryngol 2018 Nov 19. Epub 2018 Nov 19.

Department of Psychology, University of Minnesota, N218 Elliott Hall, 75 East River Parkway, Minneapolis, MN, 55455, USA.

Poor spectral resolution contributes to the difficulties experienced by cochlear implant (CI) users when listening to speech in noise. However, correlations between measures of spectral resolution and speech perception in noise have not always been found to be robust. It may be that the relationship between spectral resolution and speech perception in noise becomes clearer in conditions where the speech and noise are not spectrally matched, so that improved spectral resolution can assist in separating the speech from the masker. Read More

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http://dx.doi.org/10.1007/s10162-018-00702-2DOI Listing
November 2018
6 Reads

Medical Devices; Ear, Nose, and Throat Devices; Classification of the Active Implantable Bone Conduction Hearing System. Final order.

Authors:

Fed Regist 2018 Oct;83(208):54007-10

The Food and Drug Administration (FDA or we) is classifying the active implantable bone conduction hearing system into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the active implantable bone conduction hearing system's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. Read More

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October 2018
4 Reads

Proof of Concept for an Intracochlear Acoustic Receiver for Use in Acute Large Animal Experiments.

Sensors (Basel) 2018 Oct 21;18(10). Epub 2018 Oct 21.

Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.

(1) Background: The measurement of intracochlear sound pressure (ICSP) is relevant to obtain better understanding of the biomechanics of hearing. The goal of this work was a proof of concept of a partially implantable intracochlear acoustic receiver (ICAR) fulfilling all requirements for acute ICSP measurements in a large animal. The ICAR was designed not only to be used in chronic animal experiments but also as a microphone for totally implantable cochlear implants (TICI). Read More

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http://www.mdpi.com/1424-8220/18/10/3565
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http://dx.doi.org/10.3390/s18103565DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6210337PMC
October 2018
7 Reads

A guide towards long-term functional electrodes interfacing neuronal tissue.

J Neural Eng 2018 Dec 16;15(6):061001. Epub 2018 Oct 16.

Implantable electronics address therapeutical needs of patients with electrical signaling dysfunctions such as heart problems, neurological disorders or hearing impairments. While standard electronics are rigid, planar and made of hard materials, their surrounding biological tissues are soft, wet and constantly in motion. These intrinsic differences in mechanical and chemical properties cause physiological responses that constitute a fundamental challenge to create functional long-term interfaces. Read More

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http://stacks.iop.org/1741-2552/15/i=6/a=061001?key=crossref
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http://dx.doi.org/10.1088/1741-2552/aae0c2DOI Listing
December 2018
6 Reads

Application of "banana cochleostomy" and looped electrode insertion for cochlear implantation in children with common cavity malformation and cystic forms of cochlear hypoplasia.

Int J Pediatr Otorhinolaryngol 2018 Sep 12;112:16-23. Epub 2018 Jun 12.

Department of Otorhinolaryngology, The Second Medical Faculty, Charles University in Prague, Motol University Hospital, Czech Republic. Electronic address:

Objectives: Patients with profound hearing loss due to inner ear malformations may benefit from cochlear implantation; however, the surgery may present a substantial problem for the cochlear implant surgeon due to anatomical variations. The authors describe a new surgical and technical advancement for implantation in patients with small inner ear cavities that make the surgery easier and safer. On the basis of experience involving five consecutive surgeries performed in four patients with inner ear malformations, we present the advantages and application possibilities of the technique. Read More

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http://dx.doi.org/10.1016/j.ijporl.2018.06.018DOI Listing
September 2018
4 Reads

[The current status and applications of implantable bone-conduction devices].

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018 Jul;53(7):537-543

Department of Otorhinolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310002, China.

Implantable bone-conduction devices are characterized by the fact that the vibration is transmitted through bone conduction. The technology and surgical techniques in the application of implantable bone-conduction devices have developed considerably in recent years, experiencing a transformation from percutaneous to transcutaneous implantation. This article reviewed current developments in the types, surgical indications, and complications, as well as compared between the various bone-conduction devices to provid references for clinical application. Read More

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http://dx.doi.org/10.3760/cma.j.issn.1673-0860.2018.07.012DOI Listing

Cochlear Implantation in the Guinea Pig.

J Vis Exp 2018 06 15(136). Epub 2018 Jun 15.

Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna.

Cochlear implants are highly efficient devices that can restore hearing in subjects with profound hearing loss. Due to improved speech perception outcomes, candidacy criteria have been expanded over the last few decades. This includes patients with substantial residual hearing that benefit from electrical and acoustical stimulation of the same ear, which makes hearing preservation during cochlear implantation an important issue. Read More

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http://dx.doi.org/10.3791/56829DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6101746PMC
June 2018
9 Reads

Parental Decision-Making and Deaf Children: A Systematic Literature Review.

J Deaf Stud Deaf Educ 2018 Oct;23(4):295-306

National Acoustic Laboratories.

Parents or caregivers of children who are deaf or hard of hearing are required to make complex and rational decisions soon after the confirmation of hearing loss. Ways of facilitating decision-making have been a focus within the healthcare sector for two decades and shared decision-making is now widely viewed as the standard for good clinical care. A systematic literature review was undertaken to identify the extent to which the principles of shared decision-making and informed choice have been implemented for parents when they make decisions related to their children with permanent hearing loss. Read More

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http://dx.doi.org/10.1093/deafed/eny019DOI Listing
October 2018
5 Reads

Ten years of active middle ear implantation for sensorineural hearing loss.

Acta Otolaryngol 2018 Sep 31;138(9):807-814. Epub 2018 May 31.

a ENT Clinic, NESMOS Department, Medicine and Psychology , Sapienza University , Rome , Italy.

Objectives: To evaluate long-term benefits of a totally implantable active middle ear implant (AMEI) that has been used in a single implanting center for over 10 years.

Methods: Forty-one subjects who underwent implantation with an Esteem AMEI during a 10-years period were evaluated on the auditory benefits, as derived from pure tone and speech audiometry tests. The analysis included a comparison with a conventional hearing aid, the problematics related to the battery duration and surgical replacement and, finally, the complication rate. Read More

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http://dx.doi.org/10.1080/00016489.2018.1472807DOI Listing
September 2018
3 Reads

Piezoelectric Actuator with Frequency Characteristics for a Middle-Ear Implant.

Sensors (Basel) 2018 May 24;18(6). Epub 2018 May 24.

Institute of Biomedical Engineering Research, Kyungpook National University, 680, Gukchaebosang-ro, Jung-gu, Daegu 41944, Korea.

The design and implementation of a novel piezoelectric-based actuator for an implantable middle-ear hearing aid is described in this paper. The proposed actuator has excellent low-frequency output characteristics, and can generate high output in a specific frequency band by adjusting the mechanical resonance. The actuator consists of a piezoelectric element, a miniature bellows, a cantilever membrane, a metal ring support, a ceramic tip, and titanium housing. Read More

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http://dx.doi.org/10.3390/s18061694DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6021934PMC

The Future of Cochlear Implant Design.

Adv Otorhinolaryngol 2018 6;81:105-113. Epub 2018 Apr 6.

This chapter discusses the multifaceted future of cochlear implant design. Current research is focused on novel strategies relating to the electrode array, aiming to improve the neuronal health and spatial selectivity, and reduce the power consumption. Future design iterations will most likely improve the neuronal health by reducing insertion trauma, minimizing the inflammatory pathway that follows electrode insertion or through the use of neurotrophins or stem cells. Read More

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http://dx.doi.org/10.1159/000485540DOI Listing
October 2018
2 Reads

Physical outcome measures for conductive and mixed hearing loss treatment: A systematic review.

Clin Otolaryngol 2018 Oct 27;43(5):1226-1234. Epub 2018 May 27.

University Hospitals Birmingham, Birmingham, UK.

Background: The number of potential options for rehabilitation of patients with conductive or mixed hearing loss is continually expanding. To be able to inform patients and other stakeholders, there is a need to identify and develop patient-centred outcomes for treatment of hearing loss.

Objective Of Review: To identify outcome measures in the physical core area used when reporting the outcome after treatment of conductive and mixed hearing loss in adult patients. Read More

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http://dx.doi.org/10.1111/coa.13131DOI Listing
October 2018
1 Read

PVDF-Based Piezoelectric Microphone for Sound Detection Inside the Cochlea: Toward Totally Implantable Cochlear Implants.

Trends Hear 2018 Jan-Dec;22:2331216518774450

4 Department of Otolaryngology Head and Neck Surgery, 21611 Columbia University Medical Center , New York City, NY, USA.

We report the fabrication and characterization of a prototype polyvinylidene fluoride polymer-based implantable microphone for detecting sound inside gerbil and human cochleae. With the current configuration and amplification, the signal-to-noise ratios were sufficiently high for normally occurring sound pressures and frequencies (ear canal pressures >50-60 dB SPL and 0.1-10 kHz), though 10 to 20 dB poorer than for some hearing aid microphones. Read More

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http://dx.doi.org/10.1177/2331216518774450DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5987900PMC

Cochlear implant function in a patient with Jervell and Lange-Nielsen syndrome after defibrillation by countershock.

Auris Nasus Larynx 2018 Aug 24;45(4):890-893. Epub 2018 Mar 24.

Department of Otolaryngology-Head & Neck Surgery, Iwate Medical University, 19-1, Uchimaru, Morioka, Iwate 020-8505, Japan.

Jervell and Lange-Nielsen syndrome (JLNS), a rare autosomal recessive congenital QT prolongation syndrome, is characterized by cardiac arrhythmias, syncopal episodes, and profound deafness. A cochlear implant (CI) for patients with JLNS is expected to result in hearing improvement. Sometimes, defibrillation is required if a patient experiences lethal arrhythmia. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03858146173027
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http://dx.doi.org/10.1016/j.anl.2017.11.017DOI Listing
August 2018
7 Reads

Cochlear implantation and auditory brainstem implantation in neurofibromatosis type 2.

Laryngoscope 2018 Sep 24;128(9):2163-2169. Epub 2018 Mar 24.

House Clinic, Los Angeles, California, U.S.A.

Objectives/hypothesis: To report a series of patients with neurofibromatosis type 2 (NF2), where each patient underwent both cochlear implantation and auditory brainstem implantation for hearing rehabilitation, and to discuss factors influencing respective implant success.

Study Design: Retrospective case series.

Methods: Ten NF2 patients with both cochlear implantations and auditory brainstem implantations were retrospectively reviewed. Read More

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http://dx.doi.org/10.1002/lary.27181DOI Listing
September 2018
8 Reads

Minimum Reporting Standards for Adult Cochlear Implantation.

Otolaryngol Head Neck Surg 2018 Aug 20;159(2):215-219. Epub 2018 Mar 20.

4 Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Washington University, St Louis, Missouri, USA.

This article outlines new minimum standards for reporting adult cochlear implant outcomes. These standards have been endorsed by the Implantable Hearing Devices Committee and the Hearing Committee of the American Academy of Otolaryngology-Head and Neck Surgery. The lack of a standardized method for reporting outcomes following cochlear implantation in clinical trials has hampered the ability of investigators to draw comparisons across studies. Read More

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http://dx.doi.org/10.1177/0194599818764329DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6135063PMC

A Surgical Procedure for the Administration of Drugs to the Inner Ear in a Non-Human Primate Common Marmoset (Callithrix jacchus).

J Vis Exp 2018 02 27(132). Epub 2018 Feb 27.

Division of Regenerative Medicine, Jikei University School of Medicine;

Hearing research has long been facilitated by rodent models, although in some diseases, human symptoms cannot be recapitulated. The common marmoset (Callithrix jacchus) is a small, easy-to-handle New World monkey which has a similar anatomy of the temporal bone, including the middle ear ossicular chains and inner ear to humans, than in comparison with that of rodents. Here, we report a reproducible, safe, and rational surgical approach to the cochlear round window niche for the drug delivery to the inner ear of the common marmoset. Read More

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http://dx.doi.org/10.3791/56574DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5931374PMC
February 2018
5 Reads

Controversies in the Evaluation and Management of Otosclerosis.

Otolaryngol Clin North Am 2018 Apr;51(2):487-499

Department of Otolaryngology, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390-9035, USA.

Controversies have been associated with the etiology, diagnosis, evaluation, and management of otosclerosis since Valsalva first described stapes fixation as a cause of hearing loss. Although the exact mechanism of the bone remodeling associated with otosclerosis remains uncertain, stapedotomy has been accepted as the surgical treatment of most patients with stapedial otosclerosis. There remains a disparity of opinion, however, regarding the role of preoperative imaging, surgical technique, implant selection, and medical therapy for cochlear otosclerosis. Read More

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http://dx.doi.org/10.1016/j.otc.2017.11.017DOI Listing
April 2018
4 Reads

On the design of a MEMS piezoelectric accelerometer coupled to the middle ear as an implantable sensor for hearing devices.

Sci Rep 2018 Mar 2;8(1):3920. Epub 2018 Mar 2.

Federal University of Santa Catarina, Mechanical Engineering, Florianopolis, 88040-900, Brazil.

The presence of external elements is a major limitation of current hearing aids and cochlear implants, as they lead to discomfort and inconvenience. Totally implantable hearing devices have been proposed as a solution to mitigate these constraints, which has led to challenges in designing implantable sensors. This work presents a feasibility analysis of a MEMS piezoelectric accelerometer coupled to the ossicular chain as an alternative sensor. Read More

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http://dx.doi.org/10.1038/s41598-018-22219-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5834511PMC
March 2018
3 Reads

A technical review and evaluation of implantable sensors for hearing devices.

Biomed Eng Online 2018 Feb 13;17(1):23. Epub 2018 Feb 13.

Laboratory of Vibration and Acoustics, Florianópolis, Brazil.

Most commercially available cochlear implants and hearing aids use microphones as sensors for capturing the external sound field. These microphones are in general located in an external element, which is also responsible for processing the sound signal. However, the presence of the external element is the cause of several problems such as discomfort, impossibility of being used during physical activities and sleeping, and social stigma. Read More

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http://dx.doi.org/10.1186/s12938-018-0454-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5810055PMC
February 2018
23 Reads

The Audiology of Otosclerosis.

Otolaryngol Clin North Am 2018 Apr 2;51(2):327-342. Epub 2018 Feb 2.

Osborne College of Audiology, Salus University, 8360 Old York Road, Elkins Park, PA 19027, USA; Department of Communication Sciences and Disorders, University of Hawaii, 677 Ala Moana Boulevard, Honolulu, HI 96813, USA.

Diagnostic audiologic procedures for otosclerosis are effective tools in identifying this condition. Audiometric data usually demonstrate a conductive hearing loss at the early stages of otosclerosis. Modern middle ear analysis procedures are becoming more popular in the better diagnosis of otosclerosis. Read More

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http://dx.doi.org/10.1016/j.otc.2017.11.007DOI Listing
April 2018
5 Reads

A Bone Conduction Implantable Device as a Functional Treatment Option in Unilateral Microtia with Bilateral Stapes Ankylosis: A Report of Two Cases.

Am J Case Rep 2018 Jan 23;19:82-89. Epub 2018 Jan 23.

Audiology Unit, Department of Clinical Science and Community Health, University of Milano, IRCCS Fondazione Cà Granda, Ospedale Maggiore Policlinico, Milano, Italy.

BACKGROUND Implantable devices have been proposed as an alternative to hearing aids and auditory canal reconstruction in patients with microtia (congenital aural atresia), which includes a malformation of the external and middle ear. This report is of two rare cases of microtia associated with congenital stapes ankylosis treated with an implantable device and describes the treatment outcomes. CASE REPORT Two siblings from Ecuador, a 29-year-old woman, and her 35-year-old brother, were born with unilateral type II microtia with bilateral external auditory canal atresia and conductive hearing loss. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5789751PMC
January 2018
5 Reads

Implantable hearing devices.

Authors:
Matthias Tisch

GMS Curr Top Otorhinolaryngol Head Neck Surg 2017 18;16:Doc06. Epub 2017 Dec 18.

Department of Otolaryngology, Head & Neck Surgery, Bundeswehrkrankenhaus Ulm, Germany.

Combined hearing loss is an essential indication for implantable hearing systems. Depending on the bone conduction threshold, various options are available. Patients with mild sensorineural deafness usually benefit from transcutaneous bone conduction implants (BCI), while percutaneous BCI systems are recommended also for moderate hearing loss. Read More

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http://dx.doi.org/10.3205/cto000145DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5738935PMC
December 2017
14 Reads

In-vitro and in-vivo measurement of the animal's middle ear acoustical response by partially implantable fiber-optic sensing system.

Biosens Bioelectron 2018 Apr 10;103:176-181. Epub 2017 Dec 10.

Medical University of Vienna, Institute of Biomedical Research, 1090 Vienna, Austria.

The main obstacle in realization of a totally implantable hearing aid is a lack of reliable implantable microphone. In this paper we have described a potentially miniature fiber-optic vibrometer based on a modified Michelson interferometer, designed to serve as a middle-ear microphone for totally implantable cochlear- or middle-ear hearing aids. A model of the sensing system was used for in-vitro and in-vivo investigation of acoustical response of sheep's middle-ear ossicles. Read More

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http://dx.doi.org/10.1016/j.bios.2017.12.015DOI Listing
April 2018
3 Reads

Feasibility of Round Window Stimulation by a Novel Electromagnetic Microactuator.

Biomed Res Int 2017 29;2017:6369247. Epub 2017 Oct 29.

Cluster of Excellence EXC 1077/1 "Hearing4all", Department of Otolaryngology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.

Introduction: Most implantable hearing aids currently available were developed to compensate the sensorineural hearing loss by driving middle ear structures (e.g., the ossicles). Read More

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http://dx.doi.org/10.1155/2017/6369247DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5682051PMC
July 2018
7 Reads

Cochlear implant phantom for evaluating computed tomography acquisition parameters.

J Med Imaging (Bellingham) 2017 Oct 16;4(4):045002. Epub 2017 Nov 16.

Vanderbilt University, Department of Electrical Engineering and Computer Science, Nashville, Tennessee, United States.

Cochlear implants (CIs) are surgically implantable neuroprosthetic devices used to treat profound hearing loss. Recent literature indicates that there is a correlation between the final intracochlear positioning of the CI electrode arrays and the ultimate hearing outcome of the patient, indicating that further studies to better understand the relationship between electrode position and outcomes could have significant implications for future surgical techniques, array design, and processor programming methods. Postimplantation high-resolution computed tomography (CT) imaging is the best modality for localizing electrodes and provides the resolution necessary to visually identify electrode position, although with an unknown degree of accuracy depending on image acquisition parameters, like the hounsfield unit (HU) range of reconstruction, orientation, radiation dose, and image resolution. Read More

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http://dx.doi.org/10.1117/1.JMI.4.4.045002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5689133PMC
October 2017
1 Read

Language-specific strategy for programming hearing aids - A double-blind randomized controlled crossover study.

Auris Nasus Larynx 2018 Aug 20;45(4):686-692. Epub 2017 Nov 20.

Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.

Objective: Voice-aligned compression (VAC) is a method used in Oticon's hearing aids to provide more comfortable hearing without sacrificing speech discrimination. The complex, non-linear compression curve for the VAC strategy is designed based on the frequency profile of certain spoken Western languages. We hypothesized that hearing aids could be further customized for Japanese-speaking users by modifying the compression curve using the frequency profile of spoken Japanese. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03858146173058
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http://dx.doi.org/10.1016/j.anl.2017.11.007DOI Listing
August 2018
9 Reads

Concept and Evaluation of a New Piezoelectric Transducer for an Implantable Middle Ear Hearing Device.

Sensors (Basel) 2017 Nov 2;17(11). Epub 2017 Nov 2.

School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, China.

Implantable middle ear hearing devices (IMEHDs) have been developed as a new technology to overcome the limitations of conventional hearing aids. The piezoelectric cantilever transducers currently used in the IMEHDs have the advantages of low power consumption and ease of fabrication, but generate less high-frequency output. To address this problem, we proposed and designed a new piezoelectric transducer based on a piezoelectric stack for the IMEHD. Read More

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http://dx.doi.org/10.3390/s17112515DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5713124PMC
November 2017
14 Reads

Cannula-based drug delivery to the guinea pig round window causes a lasting hearing loss that may be temporarily mitigated by BDNF.

Hear Res 2017 12 28;356:104-115. Epub 2017 Oct 28.

Otolaryngology, Department of Surgery, University of Melbourne, East Melbourne 3002, Australia; Department of Health and Medical Sciences, Swinburne University of Technology, Hawthorn 3122, Australia.

Sustained local delivery of drugs to the inner ear may be required for future regenerative and protective strategies. The round window is surgically accessible and a promising delivery route. To be viable, a delivery system should not cause hearing loss. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03785955163040
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http://dx.doi.org/10.1016/j.heares.2017.10.004DOI Listing
December 2017
3 Reads

Haptic-assistive technologies for audition and vision sensory disabilities.

Disabil Rehabil Assist Technol 2018 05 10;13(4):394-421. Epub 2017 Oct 10.

a The BioRobotics Institute , Scuola Superiore Sant'Anna , Pontedera , Pisa , Italy.

Purpose: The aim of this review is to analyze haptic sensory substitution technologies for deaf, blind and deaf-blind individuals.

Method: The literature search has been performed in Scopus, PubMed and Google Scholar databases using selected keywords, analyzing studies from 1960s to present. Search on databases for scientific publications has been accompanied by web search for commercial devices. Read More

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https://www.tandfonline.com/doi/full/10.1080/17483107.2017.1
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http://dx.doi.org/10.1080/17483107.2017.1385100DOI Listing
May 2018
11 Reads

Cost-Utility of Partially Implantable Active Middle Ear Implants for Sensorineural Hearing Loss: A Decision Analysis.

Value Health 2017 09 31;20(8):1092-1099. Epub 2017 May 31.

MED-EL Medical Electronics Ges.m.b.H., Innsbruck, Austria. Electronic address:

Background: Partially implantable active middle ear implants (aMEIs) offer a solution for individuals who have mild to severe sensorineural hearing loss and an outer ear medical condition that precludes the use of hearing aids. When otherwise left untreated, individuals report a lower quality of life, which may further decrease with increasing disability. In the lack of cost-effectiveness studies and long-term data, there is a need for decision modeling. Read More

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http://dx.doi.org/10.1016/j.jval.2017.04.020DOI Listing
September 2017
5 Reads

Analysis of the influence of the transducer and its coupling layer on round window stimulation.

Acta Bioeng Biomech 2017 ;19(2):103-111

Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Zhongshan Hospital affiliated to Fudan University, Shanghai, China.

Purpose: In this work, a finite element study is proposed to evaluate the effects of the transducer and its coupling layer on the performance of round window (RW) stimulation.

Methods: Based on a set of micro-computer tomography images of a healthy adult's right ear and reverse engineering technique, a coupled finite-element model of the human ear and the transducer was constructed and verified. Then, the effect of the cross-section of the transducer, the elastic modulus of the coupling layer, the mass of the transducer, and the preload of the transducer were studied. Read More

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November 2017
18 Reads

Active transcutaneous bone conduction implant: audiological results in paediatric patients with bilateral microtia associated with external auditory canal atresia.

Int J Audiol 2018 01 31;57(1):53-60. Epub 2017 Aug 31.

d Programa de Doctorado en Salud Pública, Escuela de Salud Pública , Universidad de Chile , Santiago , Chile , and.

Objective: To describe, in terms of functional gain and word recognition, the audiological results of patients under 18 years of age implanted with the active bone conduction implant, Bonebridge™.

Design: Retrospective case studies conducted by reviewing the medical records of patients receiving implants between 2014 and 2016 in the public health sector in Chile.

Study Sample: All patients implanted with the Bonebridge were included (N = 15). Read More

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https://www.tandfonline.com/doi/full/10.1080/14992027.2017.1
Publisher Site
http://dx.doi.org/10.1080/14992027.2017.1370137DOI Listing
January 2018
3 Reads

A new semi-implantable middle ear implant for sensorineural hearing loss: three-years follow-up in a pilot patient's group.

Acta Otolaryngol 2018 Jan 30;138(1):31-35. Epub 2017 Aug 30.

a Nesmos Department, ENT Unit, Medicine and Psychology , Sapienza University , Rome , Italy.

Objective: The aim of this article is to report on the long-term follow-up of a new semi-implantable middle ear device utilized for restoration of moderate-to-severe sensorineural hearing loss in a first series of subjects.

Methods: Three subjects, affected by sensorineural hearing loss, have undergone implantation of Maxum middle ear implant, via a transcanal approach. They all underwent an auditory assessment, paying particular attention on the pre- versus post-operative hearing levels under the unaided, best-fitted hearing aided and implant-aided conditions. Read More

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http://dx.doi.org/10.1080/00016489.2017.1371327DOI Listing
January 2018
25 Reads

NANOCI-Nanotechnology Based Cochlear Implant With Gapless Interface to Auditory Neurons.

Otol Neurotol 2017 09;38(8):e224-e231

*University Department of ORL, Head & Neck Surgery, Inselspital †Department of Clinical Research, University of Bern, Bern, Switzerland ‡Department of Otorhinolaryngology-Head & Neck Surgery, University of Tübingen, Tübingen, Germany §Department of Surgical Sciences, Section of ORL, Uppsala University, Uppsala, Sweden ||Hearing and Balance Research Unit, Department of Otorhinolaryngology and The Finnish Centre for Alternative Methods, University of Tampere, Tampere, Finland ¶Haute Ecole Arc Ingénierie, HES-SO - University of Applied Sciences Western Switzerland, La Chaux-de-Fonds #Department of Chemistry, The Center for Advanced Materials and Nanotechnology and The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat Gan, Israel **EMC Microcollections GmbH, Tübingen, Germany ††MED-EL GmbH, Worldwide Headquarters, Innsbruck, Austria ‡‡SCIPROM Sàrl, Rue du Centre 70, St-Sulpice §§Department of Clinical Neurosciences, Service of ORL and HNS, HUG, University Hospital of Geneva, Geneva, Switzerland.

: Cochlear implants (CI) restore functional hearing in the majority of deaf patients. Despite the tremendous success of these devices, some limitations remain. The bottleneck for optimal electrical stimulation with CI is caused by the anatomical gap between the electrode array and the auditory neurons in the inner ear. Read More

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http://dx.doi.org/10.1097/MAO.0000000000001439DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5559190PMC
September 2017
48 Reads

The Vibrant Soundbridge middle ear implant: A historical overview.

Cochlear Implants Int 2017 11 8;18(6):314-323. Epub 2017 Aug 8.

b Department of Otorhinolaryngology, Antwerp University Hospital , University of Antwerp , Antwerp , Belgium.

Objective: To present a historical overview of the Vibrant Soundbridge (VSB) middle ear implant (MEI), since its beginning in the 1990s to date and to describe its course and contemplate what it might become in the future.

History: MEIs started to take form in researchers' mind in the 1930s with the first experiment of Wilska. In the 1970s, several devices, such as the Goode and Perkins', the Maniglia's, or the Hough and Dormer's were created but remained prototypes. Read More

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http://dx.doi.org/10.1080/14670100.2017.1358913DOI Listing
November 2017
1 Read

Audiologic Gain of Incus Short Process Vibroplasty With Conventional Incus Long Process Vibroplasty: A Retrospective Analysis of 36 Patients.

Otol Neurotol 2017 09;38(8):1063-1070

*Department of Otorhinolaryngology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang †Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.

Objective: To compare the audiological and non-audiological benefits of incus short process (SP) vibroplasty with those of conventional incus long process (LP) vibroplasty.

Study Design: Retrospective analysis.

Setting: Tertiary referral center. Read More

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http://dx.doi.org/10.1097/MAO.0000000000001496DOI Listing
September 2017
22 Reads

Sheep as a large animal ear model: Middle-ear ossicular velocities and intracochlear sound pressure.

Hear Res 2017 08 7;351:88-97. Epub 2017 Jun 7.

University of Zurich, University Hospital Zurich, Department of Otorhinolaryngology, Head and Neck Surgery, Frauenklinikstrasse 24, 8091, Zurich, Switzerland. Electronic address:

Animals are frequently used for the development and testing of new hearing devices. Dimensions of the middle ear and cochlea differ significantly between humans and commonly used animals, such as rodents or cats. The sheep cochlea is anatomically more like the human cochlea in size and number of turns. Read More

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http://dx.doi.org/10.1016/j.heares.2017.06.002DOI Listing
August 2017
22 Reads

Implementation of integrated circuit and design of SAR ADC for fully implantable hearing aids.

Technol Health Care 2017 Jul;25(S1):83-92

School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu, Korea.

Backgound: The hearing impaired population has been increasing; many people suffer from hearing problems. To deal with this difficulty, various types of hearing aids are being rapidly developed. In particular, fully implantable hearing aids are being actively studied to improve the performance of existing hearing aids and to reduce the stigma of hearing loss patients. Read More

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http://dx.doi.org/10.3233/THC-171309DOI Listing
July 2017
28 Reads
0.640 Impact Factor

Mastication noise reduction method for fully implantable hearing aid using piezo-electric sensor.

Technol Health Care 2017 Jul;25(S1):29-34

Department of Biomedical Engineering, School of Medicine, Kyungpook National University, Daegu, Korea.

Background: Fully implantable hearing devices (FIHDs) can be affected by generated biomechanical noise such as mastication noise.

Objective: To reduce the mastication noise using a piezo-electric sensor, the mastication noise is measured with the piezo-electric sensor, and noise reduction is practiced by the energy difference.

Methods: For the experiment on mastication noise, a skull model was designed using artificial skull model and a piezo-electric sensor that can measure the vibration signals better than other sensors. Read More

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http://dx.doi.org/10.3233/THC-171303DOI Listing
July 2017
1 Read

Utility of 3D printed temporal bones in pre-surgical planning for complex BoneBridge cases.

Eur Arch Otorhinolaryngol 2017 Aug 24;274(8):3021-3028. Epub 2017 May 24.

St. George Hospital, Sydney, Australia.

With the advent of single-sided hearing loss increasingly being treated with cochlear implantation, bone conduction implants are reserved for cases of conductive and mixed hearing loss with greater complexity. The BoneBridge (BB, MED-EL, Innsbruck, Austria) is an active fully implantable device with no attenuation of sound energy through soft tissue. However, the floating mass transducer (FMT) part of the device is very bulky, which limits insertion in complicated ears. Read More

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http://dx.doi.org/10.1007/s00405-017-4618-4DOI Listing
August 2017
9 Reads

Regenerative medicine in hearing recovery.

Cytotherapy 2017 08 19;19(8):909-915. Epub 2017 May 19.

Bioacoustics Research Laboratory, Department of Neurosciences, University of Padua, Padua, Italy; Foundation Onlus Staminali e Vita, Padua, Italy. Electronic address:

Hearing loss, or deafness, affects 360 million people worldwide of which about 32 million are children. Deafness is irreversible when it involves sensory hair cell death because the regenerative ability of these cells is lost in mammals after embryo development. The therapeutic strategies for deafness include hearing aids and/or implantable devices. Read More

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http://dx.doi.org/10.1016/j.jcyt.2017.04.008DOI Listing
August 2017
31 Reads

Systematic radiographic evaluation of three potential implantation sites for a semi-implantable bone conduction device in 52 patients after previous mastoid surgery.

Eur Arch Otorhinolaryngol 2017 Aug 20;274(8):3001-3009. Epub 2017 May 20.

Department of Otorhinolaryngology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany.

The aim of this study was the evaluation of three localizations for the implantation of a semi-implantable transcutaneous bone conduction device after previous mastoid surgery. This is a retrospective review of electronic datasets of cranial computed tomography studies. The study setting is one tertiary referral center and included 52 consecutive adult patients (60 temporal bones) with a history of mastoid surgery. Read More

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http://dx.doi.org/10.1007/s00405-017-4609-5DOI Listing
August 2017
32 Reads

[Implantable Hearing Devices].

Authors:
Matthias Tisch

Laryngorhinootologie 2017 Apr 12;96(S 01):S84-S102. Epub 2017 May 12.

Bundeswehrkrankenhaus Ulm.

Combined hearing loss is an essential indication for implantable hearing systems. Depending on the bone conduction threshold, various options are available: Patients with mild sensorineural deafness usually benefit from transcutaneous BCI, while percutaneous BCI systems are recommended also for moderate hearing loss. For combined hearing loss with moderate and high-grade cochlear hearing loss, active middle ear implants are recommended. Read More

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http://dx.doi.org/10.1055/s-0042-118775DOI Listing
April 2017
5 Reads

The Effect of Systemic Steroid on Hearing Preservation After Cochlear Implantation via Round Window Approach: A Guinea Pig Model.

Otol Neurotol 2017 08;38(7):962-969

*Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University College of Medicine, Seoul †Department of Otorhinolaryngology-Head and Neck Surgery, Korea University Ansan Hospital, Ansan ‡Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea §Department of Otolaryngology, University of Melbourne, Royal Victorian Eye and Ear Hospital, Melbourne, Australia ||Sensory Organ Research Institute, Seoul National University Medical Research Center, Seoul, Republic of Korea.

Hypothesis: When administered perioperatively, systemic dexamethasone will reduce the hearing loss associated with cochlear implantation (CI) performed via the round window approach.

Background: The benefits of electroacoustic stimulation have led to interest in pharmacological interventions to preserve hearing after CI.

Methods: Thirty guinea pigs were randomly divided into three experimental groups: a control group; a 3-day infusion group; and a 7-day infusion group. Read More

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http://Insights.ovid.com/crossref?an=00129492-201708000-0000
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http://dx.doi.org/10.1097/MAO.0000000000001453DOI Listing
August 2017
2 Reads

Totally implantable hearing system: Five-year hearing results.

Laryngoscope 2018 01 13;128(1):210-216. Epub 2017 Apr 13.

Lahey Hospital & Medical Center, Boston, Massachusetts, U.S.A.

Objectives/hypothesis: 1) To provide long-term hearing outcome measures of a totally implantable hearing system (implant) and compare to the baseline unaided (BLU) and baseline aided (BLA) conditions, and 2) discuss relevant safety measures.

Study Design: Prospective, nonrandomized, multicenter, single-subject-as-own-control design.

Methods: Fifty-one subjects with mild to severe sensorineural hearing loss were implanted between 2008 and 2009 and enrolled in this postmarket approval study in the setting of private and hospital-based practices. Read More

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http://dx.doi.org/10.1002/lary.26602DOI Listing
January 2018
1 Read

[Implantable Bone Conduction and Active Middle Ear Devices].

Laryngorhinootologie 2017 Feb 14;96(2):120-129. Epub 2017 Mar 14.

In case of audiological and/or anatomical limitations in the provision of conventional hearing aids, semi- or fully-implantable hearing systems represent a modern therapy alternative. These hearing systems are divided according to their mode of action into active middle ear implants when stimulating the auditory ossicles or the round window, into bone conduction devices while stimulating the skull directly, into cochlear implants with direct acoustic stimulation to the cochlea with its auditory nerve and finally into auditory brainstem implants by bridging the peripheral auditory structures. Taking careful criteria of indications and anatomical specificities into account, significant improvements can be achieved in comfort, speech understanding and thus quality of life for a large number of patients. Read More

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http://dx.doi.org/10.1055/s-0042-122477DOI Listing
February 2017
3 Reads