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Active middle ear implants

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https://www.readbyqxmd.com/read/29664723/the-value-of-electrically-evoked-stapedius-reflex-in-determining-the-maximum-comfort-level-of-a-cochlear-implant
#1
Kelly Cristina Lira de Andrade, Lilian Ferreira Muniz, Pedro de Lemos Menezes, Silvio da Silva Caldas Neto, Aline Tenório Lins Carnaúba, Mariana de Carvalho Leal
BACKGROUND: One of the most important steps for good user performance with a cochlear implant (CI) is activation and programming, aimed at determining the dynamic range. In adults, current levels are determined by psychophysical measures. In babies, small children, or individuals with multiple disorders, this procedure requires techniques that may provide inconsistent responses because of auditory inexperience or the age of the child, making it a very difficult process that demands the collaboration of both the patient and the family...
April 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/29555078/active-middle-ear-implants
#2
Luis Lassaletta, Isabel Sánchez-Cuadrado, Juan Manuel Espinosa, Ángel Batuecas, Carlos Cenjor, María José Lavilla, Laura Cavallé, Alicia Huarte, Faustino Nuñez, Manuel Manrique, Ángel Ramos, Carlos de Paula, Elisa Gil-Carcedo
Active middle ear implants are surgically implanted prosthesis, which intend to stimulate the ossicular chain or the inner ear fluids through the oval or round windows. These implants may be useful for the treatment of certain patients with sensorineural hearing loss as well as for conductive or mixed hearing loss. This clinical guide attempts to summarize the current knowledge concerning the basic characteristics and indications of the most commonly used middle ear implants, including Vibrant Soundbrige (Med-el, Innsbruck), Carina (Cochlear, Australia), and CodacsTM ...
March 16, 2018: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/29481695/factors-associated-with-benefit-of-active-middle-ear-implants-compared-to-conventional-hearing-aids
#3
Theodore R McRackan, William B Clinkscales, Jayne B Ahlstrom, Shaun A Nguyen, Judy R Dubno
OBJECTIVE: Identify factors associated with benefit of middle ear implants (MEIs) as compared to conventional hearing aids (HAs). STUDY DESIGN: Independent review of audiological data from a multicenter prospective U.S. Food and Drug Administration (FDA) clinical trial. Preoperative and postoperative earphone, unaided/aided/implanted pure-tone thresholds, and word recognition scores were evaluated. RESULTS: Ninety-one subjects were included in this study...
February 26, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29433516/a-technical-review-and-evaluation-of-implantable-sensors-for-hearing-devices
#4
REVIEW
Diego Calero, Stephan Paul, André Gesing, Fabio Alves, Júlio A Cordioli
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. These limitations have driven studies with the goal of developing totally implantable hearing devices, and the design of an implantable sensor has been one of the main challenges to be overcome...
February 13, 2018: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29358571/a-bone-conduction-implantable-device-as-a-functional-treatment-option-in-unilateral-microtia-with-bilateral-stapes-ankylosis-a-report-of-two-cases
#5
Diego Zanetti, Federica Di Berardino
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...
January 23, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29279724/implantable-hearing-devices
#6
REVIEW
Matthias Tisch
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. For combined hearing losses with moderate and high-grade cochlear hearing loss, active middle ear implants are recommended. For patients with incompatibilities or middle ear surgery, implants are a valuable and proven addition to the therapeutic options...
2017: GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery
https://www.readbyqxmd.com/read/29158536/validation-of-methods-for-prediction-of-clinical-output-levels-of-active-middle-ear-implants-from-measurements-in-human-cadaveric-ears
#7
Martin Grossöhmichen, Bernd Waldmann, Rolf Salcher, Nils Prenzler, Thomas Lenarz, Hannes Maier
Today, the standard method to predict output levels of active middle ear implants (AMEIs) before clinical data are available is stapes vibration measurement in human cadaveric ears, according to ASTM standard F2504-05. Although this procedure is well established, the validity of the predicted output levels has never been demonstrated clinically. Furthermore, this procedure requires a mobile and visually accessible stapes and an AMEI stimulating the ossicular chain. Thus, an alternative method is needed to quantify the output level of AMEIs in all other stimulation modes, e...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29054109/influence-of-backside-loading-on-the-floating-mass-transducer-an-in-vitro-experimental-study
#8
A-O Gostian, M S Otte, D Pazen, M Ortmann, D Schwarz, K B Hüttenbrink, D Beutner
HYPOTHESIS: The vibration of the floating mass transducer (FMT) of a single active middle-ear implant (AMEI) is distinctly influenced by the properties of the material coupled to its back side. BACKGROUND: In round window vibroplasty, the FMT needs to be padded against the surrounding bone opposite from the round window membrane. This represents one factor influencing its performance as a round window driver. Therefore, we examined the effects of different materials linked to the back side of an FMT on its vibration range...
October 20, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28964441/cost-utility-of-partially-implantable-active-middle-ear-implants-for-sensorineural-hearing-loss-a-decision-analysis
#9
Melodi Kosaner Kliess, Martina Kluibenschaedl, Ruth Zoehrer, Bettina Schlick, Francesca Scandurra, Michael Urban
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. OBJECTIVE: To explore individual-level variance in resource utilization patterns following aMEI implantation...
September 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28964300/anatomical-measurement-of-the-ossicles-in-patients-with-congenital-aural-atresia-and-stenosis
#10
Jieying Li, Keguang Chen, Chenlong Li, Dongming Yin, Tianyu Zhang, Peidong Dai
OBJECTIVES: Our aims were to measure and compare anatomical parameters of the ossicles in normal, congenital aural stenosis (CAS), and congenital aural atresia (CAA) ears. METHODS: This retrospective study was performed using three-dimensional reconstructed images derived from computed tomography scans of 20 normal subjects, 20 CAS patients, and 20 CAA patients. RESULTS: The lengths of the malleus handle and long process of the incus were greater in normal ears than in CAS and CAA ears (all P < 0...
October 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28889786/implantable-microphones-as-an-alternative-to-external-microphones-for-cochlear-implants
#11
Alistair Mitchell-Innes, Robert Morse, Richard Irving, Philip Begg
Totally implantable cochlear implants may be able to address many of the problems cochlear implant users have around cosmetic appearances, discomfort, and restriction of activities. The major technological challenges that need to be solved to develop a totally implantable device relate to implanted microphone performance. Previous attempts at implanting microphones for cochlear implants have not performed as well as conventional cochlear implant microphones, and in addition have struggled with extraneous body or surface contact noise...
September 11, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28834277/vibrant-soundbridge-can-improve-the-most-comfortable-listening-level-in-sensorineural-hearing-loss-our-experience-with-61-patients
#12
LETTER
J Jung, J W Kim, I S Moon, S H Kim, J Y Choi
No abstract text is available yet for this article.
February 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28666703/a-comparative-study-of-med-el-fmt-attachment-to-the-long-process-of-the-incus-in-intact-middle-ears-and-its-attachment-to-disarticulated-stapes-head
#13
Tao Chen, Liu-Jie Ren, Dong-Ming Yin, Jia Li, Lin Yang, Pei-Dong Dai, Tian-Yu Zhang
The Vibrant Soundbridge(©) (VSB) active middle-ear implant provides an effective treatment for mild-to-severe sensorineural hearing loss in the case of normal middle ear anatomy and mixed hearing loss in middle ear malformation. The VSB floating mass transducer (FMT), with proper couplers, can be installed on various structures of the ossicular chain, e.g., the short and long process of the incus, the stapes head, and the stapes footplate. A long process (LP) coupler is most commonly used for FMT attachment to the long process of the incus with intact ossicular chain, while CliP and Bell couplers are two standardized and reliable methods for FMT attachment to the stapes head with missing incus and malleus...
June 23, 2017: Hearing Research
https://www.readbyqxmd.com/read/28538078/vibroplasty-in-severe-congenital-or-acquired-meatal-stenosis-by-coupling-an-active-middle-ear-implant-to-the-short-process-of-the-incus
#14
Jan Peter Thomas, Christiane Voelter, Katrin Neumann, Stefan Dazert
OBJECTIVE: To evaluate the safety and effectiveness of coupling an active middle ear implant to the short process of the incus in subjects with meatal pathologies. STUDY DESIGN: Retrospective study. SETTING: Tertiary referral center. PATIENTS: Twelve patients suffering from either congenital aural atresia or acquired meatal fibrosis. INTERVENTION: Implantation of an active middle ear implant with coupling of the actuator to the short process of the incus...
August 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28516965/benefits-of-active-middle-ear-implants-over-hearing-aids-in-patients-with-sloping-high-tone-hearing-loss-comparison-with-hearing-aids
#15
J M Lee, J H Jeon, I S Moon, J Y Choi
In this retrospective chart review we compared the subjective and objective benefits of active middle ear implants (AMEIs) with conventional hearing aids (HAs) in patients with sloping high tone hearing loss. Thirty-four patients with sensorineural hearing loss were treated with AMEIs. Of these, six had sloping high tone hearing loss and had worn an HA for more than 6 months. Objective assessments, a pure-tone audiogram, as well as a word recognition test, and the Korean version of the Hearing in Noise Test (K-HINT), and a subjective assessment, the Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire, were performed...
June 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28499296/-implantable-hearing-devices
#16
Matthias Tisch
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. For patients with incompatibilities or middle ear surgery, implants are a valuable and proven addition to the therapeutic options...
April 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28481780/round-window-application-of-an-active-middle-ear-implant-a-comparison-with-hearing-aid-usage-in-japan
#17
COMPARATIVE STUDY
Satoshi Iwasaki, Shin-Ichi Usami, Haruo Takahashi, Yukihiko Kanda, Tetsuya Tono, Katsumi Doi, Kozo Kumakawa, Kiyofumi Gyo, Yasushi Naito, Sho Kanzaki, Noboru Yamanaka, Kimitaka Kaga
OBJECTIVE: To report on the safety and efficacy of an investigational active middle ear implant (AMEI) in Japan, and to compare results to preoperative results with a hearing aid. DESIGN: Prospective study conducted in Japan in which 23 Japanese-speaking adults suffering from conductive or mixed hearing loss received a VIBRANT SOUNDBRIDGE with implantation at the round window. Postoperative thresholds, speech perception results (word recognition scores, speech reception thresholds, signal-to-noise ratio [SNR]), and quality of life questionnaires at 20 weeks were compared with preoperative results with all patients receiving the same, best available hearing aid (HA)...
July 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28420277/device-optimised-chirp-stimulus-for-abr-measurements-with-an-active-middle-ear-implant
#18
Mario Cebulla, Ute Geiger, Rudolf Hagen, Andreas Radeloff
OBJECTIVE: Active middle ear implants are widely used to treat adults and children with sensorineural, conductive, or mixed hearing loss. Currently, there is no adequate method to determine the performance of active middle ear implant systems. DESIGN: The proposed method is based on measuring the auditory brainstem response while stimulating the hearing system via the active middle ear implant (Vibrant Soundbridge(TM), VSB; MEDEL, Austria). The acoustic stimulation was achieved via an optimised chirp stimulus (CE-Chirp), implemented in the Eclipse system (Interacoustics, Denmark)...
April 19, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28383463/influence-of-floating-mass-transducer-coupling-efficiency-for-active-middle-ear-implants-on-speech-recognition
#19
Alexander Müller, Parwis Mir-Salim, Nina Zellhuber, Ralf Helbig, Marc Bloching, Tobias Schmidt, Sven Koscielny, Oliver C Dziemba, Stefan K Plontke, Torsten Rahne
OBJECTIVE: The efficiency of vibroplasty (coupler-floating mass transducer [FMT] assembly) can be monitored by direct stimulation of the inner ear through the active middle-ear implant system and comparison of the vibroplasty in vivo threshold and the postoperative bone-conduction pure-tone threshold. The aim of this study was to compare the vibroplasty in vivo threshold with the postoperative speech recognition in patients with a high preoperative maximum word recognition score. STUDY DESIGN: Retrospective cohort study of German-speaking patients implanted with a vibrating ossicular prosthesis (VORP) 502 or VORP 503 and high preoperative maximum word recognition score between the years of 2011 and 2015...
July 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28292001/-implantable-bone-conduction-and-active-middle-ear-devices
#20
Markus Pirlich, Andreas Dietz, Sylvia Meuret, Mathias Hofer
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...
February 2017: Laryngo- Rhino- Otologie
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