594 results match your criteria Implantable Hearing Devices


Efficacy of Auditory Implants for Patients With Conductive and Mixed Hearing Loss Depends on Implant Center.

Otol Neurotol 2019 Apr;40(4):430-435

Department of Otorhinolaryngology, Radboud University Medical Centre and Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands.

Introduction: Although from a technological point of view, progress is impressive, most implantable hearing devices for conductive or mixed hearing loss have a limited capacity. These devices all bypass the impaired middle ear; therefore, the desired amplification (gain) should be based on the cochlear hearing loss (component) only. The aim of the study is to review the literature with regard to accomplished gain with current implantable devices. Read More

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http://dx.doi.org/10.1097/MAO.0000000000002183DOI Listing
April 2019
1 Read

Frequency-specific activation of the peripheral auditory system using optoacoustic laser stimulation.

Sci Rep 2019 Mar 12;9(1):4171. Epub 2019 Mar 12.

Saarland University, Faculty of Medicine, Department of Otolaryngology, Kirrbergerstr. 100, 66421, Homburg, Germany.

Hearing impairment is one of the most common sensory deficits in humans. Hearing aids are helpful to patients but can have poor sound quality or transmission due to insufficient output or acoustic feedback, such as for high frequencies. Implantable devices partially overcome these issues but require surgery with limited locations for device attachment. Read More

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http://dx.doi.org/10.1038/s41598-019-40860-8DOI Listing

Implantable Auditory Devices: Bridging the Gap Between Conventional Hearing Aids and Cochlear Implants.

Otolaryngol Clin North Am 2019 Apr;52(2):xv-xvi

ENT and Allergy Associates, LLP, 18 East 48th Street, 2nd Floor, New York, NY 10017, USA. Electronic address:

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http://dx.doi.org/10.1016/j.otc.2018.11.018DOI Listing
April 2019
1 Read

Implantable Auditory Devices: Financial Considerations and Office-Based Implantation.

Otolaryngol Clin North Am 2019 Apr;52(2):357-361

Research for the Ear Research Foundation, Silverstein Institute, 1901 Floyd Street, Sarasota, FL 34239, USA.

Hearing rehabilitation has been recognized as a crucial tool to maintain communicative and social skills. The availability of hearing aids and auditory implants ought not be limited to the wealthy and to those who can afford them. Multidisciplinary efforts in reducing costs are necessary and include reduction of the item costs, insurance coverage, and the ability to perform certain procedures in an office setting, eliminating hospital and facilities fees and anesthesia bills. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00306665183025
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http://dx.doi.org/10.1016/j.otc.2018.11.012DOI Listing
April 2019
2 Reads

Special Populations in Implantable Auditory Devices: Pediatric.

Otolaryngol Clin North Am 2019 Apr;52(2):323-330

Division of Pediatric Otolaryngology, Children's National Health System, George Washington University School of Medicine, 111 Michigan Avenue Northwest, Washington, DC 20010, USA. Electronic address:

"Hearing loss in the pediatric population can have significant social and developmental implications. Early auditory rehabilitation by at least 6 months of age is imperative. Although traditional hearing aids are often a first-line treatment option, there is a wide array of implantable auditory devices available. Read More

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http://dx.doi.org/10.1016/j.otc.2018.11.015DOI Listing

Ossicle Coupling Active Implantable Auditory Devices: Magnetic Driven System.

Authors:
C Y Joseph Chang

Otolaryngol Clin North Am 2019 Apr;52(2):273-283

Texas Ear Center, 7900 Fannin, Suite 1800, Houston, TX 77054, USA; Department of Otorhinolaryngology-Head and Neck Surgery, University of Texas McGovern Medical School, Houston, TX, USA. Electronic address:

Active auditory implants, such as the Maxum, provide significantly improved hearing function compared to hearing aids in patients with moderate to severe hearing loss who are not reaching their cochlear hearing potential. The speech perception gap (SPG), defined as PB Max (phonetically balanced maximum) minus word recognition score with hearing aid, is a useful measure of inadequate hearing aid performance. The Maxum middle ear implant provides significantly improved performance over hearing aids in patients with significant SPG because of superior high frequency gain. Read More

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http://dx.doi.org/10.1016/j.otc.2018.11.014DOI Listing

Medical and Audiological Indications for Implantable Auditory Devices.

Otolaryngol Clin North Am 2019 Apr;52(2):195-210

Department of Otolaryngology, Long Island Jewish Medical Center, Hearing and Speech Center, Northwell Health, 430 Lakeville Road, New Hyde Park, NY 11042, USA.

Implantable auditory devices (IADs) are a viable hearing restoration option for patients with hearing loss. Conditions such as chronic otitis externa, congenital aural atresia, and chronic otitis media can be treated with a variety of implants. Progressive disease are also amenable to restoration with IADs, providing stabilized hearing. Read More

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http://dx.doi.org/10.1016/j.otc.2018.11.001DOI Listing
April 2019
1 Read

Totally Implantable Active Middle Ear Implants.

Otolaryngol Clin North Am 2019 Apr 12;52(2):297-309. Epub 2019 Feb 12.

Shohet Ear Associates, 446 Old Newport Boulevard #100, Newport Beach, Orange County, CA 92663, USA.

The Envoy Esteem and the Carina system are the 2 totally implantable hearing devices. The Esteem is designed for patients with bilateral moderate to severe sensorineural hearing loss who have an unaided speech discrimination score of greater than and equal to 40%. The Carina system is designed for patients with moderate to severe sensorineural hearing loss or those with mixed hearing loss. Read More

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http://dx.doi.org/10.1016/j.otc.2018.11.011DOI Listing

Special Populations in Implantable Auditory Devices: Developmentally Challenged and Additional Disabilities.

Otolaryngol Clin North Am 2019 Apr 12;52(2):341-347. Epub 2019 Feb 12.

Department of Otolaryngology Head and Neck Surgery, Loma Linda University Health, 11234 Anderson St. Rm 2586A, Loma Linda, CA 92354, USA.

Children with hearing loss and additional disabilities can benefit from cochlear implants and other implantable auditory devices. Although each individual child must be evaluated, and families uniquely counseled on goals and realistic expectations, overall many gains and benefits are possible in this population. In this article, an overview of the considerations for this group is discussed and outcomes are reviewed, including auditory and speech measures as well as benefits in other skills and quality of life. Read More

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http://dx.doi.org/10.1016/j.otc.2018.11.010DOI Listing

Special Populations in Implantable Auditory Devices: Geriatric.

Authors:
Selena E Briggs

Otolaryngol Clin North Am 2019 Apr 12;52(2):331-339. Epub 2019 Feb 12.

Department of Otolaryngology, MedStar Washington Hospital Center, 106 Irving Street NW, Suite 2700 North, Washington, DC 20010; Department of Otolaryngology, MedStar Georgetown University Medical Center, Gorman Building, 1st Floor, 3800 Reservoir Road NW, Washington, DC 20007. Electronic address:

Hearing loss is common in the geriatric population. Most hearing loss is associated with presbycusis or age-related hearing loss, impacting one-third of individuals over 65 years and increasing in prevalence with age. Hearing loss impacts quality of life, psychological health, and cognition. Read More

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http://dx.doi.org/10.1016/j.otc.2018.11.009DOI Listing
April 2019
1 Read

Future of Implantable Auditory Devices.

Otolaryngol Clin North Am 2019 Apr 12;52(2):363-378. Epub 2019 Feb 12.

The Department of Otolaryngology Head and Neck Surgery, The University of Oklahoma Health Sciences Center, 800 Stanton L Young Boulevard, Suite 1400, Oklahoma City, OK 73104, USA. Electronic address:

The advances in technology leading to rapid developments in implantable auditory devices are constantly evolving. Devices are becoming smaller, less visible, and more efficient. The ability to preserve hearing outcomes with cochlear implantation will continue to evolve as surgical techniques improve with the use of continuous feedback during the procedure as well as with intraoperative delivery of drugs and robot assistance. Read More

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http://dx.doi.org/10.1016/j.otc.2018.11.017DOI Listing

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 Apr 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

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
11 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
Publisher Site
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
10 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
6 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
July 2018
1 Read

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
14 Reads

From CT scanning to 3D printing technology: a new method for the preoperative planning of a transcutaneous bone-conduction hearing device.

Acta Otorhinolaryngol Ital 2018 Jun;38(3):251-256

Department of Otorhinolaryngology, University of Pavia, Foundation IRCCS Policlinico "San Matteo", Pavia, Italy.

Summary: The aim of the present study was to assess the feasibility and utility of 3D printing technology in surgical planning of a transcutaneous bone-conduction hearing device (Bonebridge) (BB), focusing on the identification of the proper location and placement of the transducer. 3D printed (3DP) models of three human cadaveric temporal bones, previously submitted to CT scan, were created with the representation of a topographic bone thickness map and the sinus pathway on the outer surface. The 3DP model was used to detect the most suitable location for the BB. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6036958PMC
http://dx.doi.org/10.14639/0392-100X-1625DOI Listing
June 2018
4 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
11 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
5 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
May 2018
1 Read

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
3 Reads

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

Clin Otolaryngol 2018 10 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
March 2019
4 Reads

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
9 Reads

Cochlear implantation and auditory brainstem implantation in neurofibromatosis type 2.

Laryngoscope 2018 09 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
August 2018
1 Read

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
8 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
5 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
26 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
1.341 Impact Factor

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
6 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
15 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
10 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
2 Reads

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
17 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
4 Reads

Sensitivity enhancement of a folded beam MEMS capacitive accelerometer-based microphone for fully implantable hearing application.

Biomed Tech (Berl) 2018 Nov;63(6):699-708

Electronics and Communications Engineering Department, NIT Hamirpur, Hamirpur 177005, Himachal Pradesh, India.

The present work attempts to enhance the sensitivity of a folded beam microelectromechanical systems (MEMS) capacitive accelerometer by optimising the device geometry. The accelerometer is intended to serve as a microphone in the fully implantable hearing application which can be surgically implanted in the middle ear bone structure. For the efficient design of the accelerometer as a fully implantable biomedical device, the design parameters such as size, weight and resonant frequency have been considered. Read More

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http://dx.doi.org/10.1515/bmt-2016-0181DOI Listing
November 2018
5 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
19 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
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http://dx.doi.org/10.1080/14992027.2017.1370137DOI Listing
January 2018
4 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
34 Reads