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"cochlear implant"

Kelsey E Klein, Elizabeth A Walker, J Bruce Tomblin
The authors tested the hypothesis that children with cochlear implants (CIs) experience domain-general deficits in sequential learning. Twenty children with CIs and 40 children with normal hearing (NH) participated. Participants completed a serial reaction time task that measured implicit sequential learning. During random sequence phases, the CI group had significantly slower reaction times than the NH group. However, there were no significant differences in the rates of sequential learning between groups...
March 15, 2018: Ear and Hearing
Manuela Lavelli, Marinella Majorano, Letizia Guerzoni, Alessandra Murri, Chiara Barachetti, Domenico Cuda
This study examined (a) the functions and modalities of maternal and child communication during interaction between mothers and children with cochlear implants (CIs), comparing them with mothers and normally hearing (NH) children, and (b) the effectiveness of maternal support strategies in eliciting adequate answers in children with CI. Twenty preschoolers with CIs (M = 40 months) and 40 NH children - 20 matched by chronological age (CANH, M = 40 months) and 20 matched by hearing age (HANH, M = 25 months) - were videotaped during shared book reading and toy play with their mothers...
March 5, 2018: Journal of Communication Disorders
Yan Hao, Dawei Chen, Zhiguo Zhang, Ping Zhou, Yunxia Cao, Zhaolian Wei, Xiaofeng Xu, Beili Chen, Weiwei Zou, Mingrong Lv, Dongmei Ji, Xiaojin He
Hearing loss may place a heavy burden on the patient and patient's family. Given the high incidence of hearing loss among newborns and the huge cost of treatment and care (including cochlear implantation), prenatal diagnosis is strongly recommended. Termination of the fetus may be considered as an extreme outcome to the discovery of a potential deaf fetus, and therefore preimplantation genetic diagnosis has become an important option for avoiding the birth of affected children without facing the risk of abortion following prenatal diagnosis...
April 2018: Oncology Letters
Sumit Agrawal, Nadine Schart-Morén, Wei Liu, Hanif M Ladak, Helge Rask-Andersen, Hao Li
OBJECTIVE: We used synchrotron radiation phase contrast imaging (SR-PCI) to study the 3D microanatomy of the basilar membrane (BM) and its attachment to the spiral ligament (SL) (with a conceivable secondary spiral lamina [SSL] or secondary spiral plate) at the round window membrane (RWM) in the human cochlea. The conception of this complex anatomy may be essential for accomplishing structural preservation at cochlear implant surgery. MATERIAL AND METHODS: Sixteen freshly fixed human temporal bones were used to reproduce the BM, SL, primary and secondary osseous spiral laminae (OSL), and RWM using volume-rendering software...
March 14, 2018: Upsala Journal of Medical Sciences
Bin Wang, Keli Cao, Chaogang Wei, Zhiqiang Gao, Huan Li
OBJECTIVE: To establish an effective detection method to evaluate auditory pathway in patients by electrical evoked middle latency response (EMLR) before artificial cochlear implantation, and to analyze the relationship between postoperative hearing rehabilitation and auditory cortex functions. METHODS: Twenty-three patients with artificial cochlear implant were recruited. EMLR was measured after adjusting the depth of anesthesia. The electrical auditory brainstem response (EABR) mode with monopolar stimulation and two-phase alternating current square waves was selected...
March 14, 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
Verena Müller, Heinz Klünter, Dirk Fürstenberg, Hartmut Meister, Martin Walger, Ruth Lang-Roth
Purpose: This study aimed to investigate whether adults with cochlear implants benefit from a change of fine structure (FS) coding strategies regarding the discrimination of prosodic speech cues, timbre cues, and the identification of natural instruments. The FS processing (FSP) coding strategy was compared to 2 settings of the FS4 strategy. Method: A longitudinal crossover, double-blinded study was conducted. This study consisted of 2 parts, with 14 participants in the first part and 12 participants in the second part...
March 13, 2018: American Journal of Audiology
Uwe Wolfrum, Kerstin Nagel-Wolfrum
The human Usher syndrome (USH) is a complex, rare disease manifesting in its most common form of inherited deaf-blindness. Due to the heterogeneous manifestation of the clinical symptoms, three clinical types (USH1-3) are distinguished according to the severity of the disease pattern. For a correct diagnosis, in addition to the auditory tests in early newborn screening, ophthalmological examinations and molecular genetic analysis are important. Ten known USH genes encode proteins, which are from heterogeneous protein families, interact in functional protein networks...
March 2018: Klinische Monatsblätter Für Augenheilkunde
Tobias Oberhoffner, Ulrich Hoppe, Matthias Hey, Dietmar Hecker, Heike Bagus, Peter Voigt, Silvia Schicktanz, Astrid Braun, Thomas Hocke
INTRODUCTION: Novel cochlear implant speech processors are capable of storing data logs. With the help of this information a more individualized patient care can be provided. However, standard data are missing to a greater extent to the individual usage behavior. MATERIALS AND METHODS: In a retrospective study, the use data of 2687 patients were evaluated. All patients had the Nucleus 6 system from Cochlear Ltd. RESULTS: The data allow a normal range to be defined for the duration of use of cochlear implant speech processors...
March 13, 2018: Laryngo- Rhino- Otologie
Tyler S Weaver, Corey S Shayman, Timothy E Hullar
No abstract text is available yet for this article.
April 2018: Otology & Neurotology
Ann Hallemans, Nolan Herssens, Griet Mertens, Paul Van de Heyning, Vincent Van Rompaey
No abstract text is available yet for this article.
April 2018: Otology & Neurotology
Dona M P Jayakody, Peter L Friedland, Esmeralda Nel, Ralph N Martins, Marcus D Atlas, Hamid R Sohrabi
No abstract text is available yet for this article.
April 2018: Otology & Neurotology
Stefanie Günther, Uwe Baumann, Timo Stöver
OBJECTIVE: Evaluation of a shortened delay time between surgical placement of the cochlear implant (CI) device and processor activation to less than 8 days (early CI fitting). Assessment of benefits and limits of early fitting in terms of medical, technical, audiological, and subjective outcome. STUDY DESIGN: Prospective. SETTING: Tertiary referral center. PATIENTS: Forty-one patients scheduled for cochlear implant surgery divided into early fit (EF, n = 21) and control group (CG, n = 19)...
April 2018: Otology & Neurotology
Thomas Wesarg, Bettina Voss, Frederike Hassepass, Rainer Beck, Antje Aschendorff, Roland Laszig, Susan Arndt
OBJECTIVE: To investigate the impact of the wearing position of an off-the-ear-processor (OTE) on speech perception in quiet and noise. PATIENTS: The study group consisted of 16 adult subjects with bilateral severe-to-profound sensorineural hearing loss, 2 of them unilaterally, and 14 bilaterally provided with cochlear implants. MAIN OUTCOME MEASURES: Speech perception in quiet and noise was measured for frontal presentation with the recipients behind-the-ear processor CP810 or CP910 and the OTE processor Kanso (Cochlear Limited, Sydney, Australia)...
April 2018: Otology & Neurotology
Robert J Yawn, Brendan P O'Connell, Robert T Dwyer, Linsey W Sunderhaus, Susan Reynolds, David S Haynes, René H Gifford
OBJECTIVE: Evaluate performance and quality of life changes after sequential bilateral cochlear implantation in patients with preoperative residual hearing functioning in a bimodal hearing configuration. STUDY DESIGN: Retrospective analysis using within-subjects repeated measures design. SETTING: Tertiary otologic center. PATIENTS: Twenty-two adult patients with bilateral sensorineural hearing loss who used bimodal hearing before second cochlear implant (CI) meeting the following criteria: 1) preoperative residual hearing (≤80 dB HL at 250 Hz) in the ear to be implanted, 2) implantation with current CI technology (2013-2016), 3) consonant-nucleus-consonant (CNC) speech recognition testing in the bimodal condition preoperatively and bilateral CI condition postoperatively...
April 2018: Otology & Neurotology
Mahan Azadpour, Colette M McKay, Mario A Svirsky
Stimulation pulse rate affects current amplitude discrimination by cochlear implant (CI) users, indicated by the evidence that the JND (just noticeable difference) in current amplitude delivered by a CI electrode becomes larger at higher pulse rates. However, it is not clearly understood whether pulse rate would affect discrimination of speech intensities presented acoustically to CI processors, or what the size of this effect might be. Intensity discrimination depends on two factors: the growth of loudness with increasing sound intensity and the loudness JND (or the just noticeable loudness increment)...
March 12, 2018: Journal of the Association for Research in Otolaryngology: JARO
G Jakob Lexow, Marcel Kluge, Nils-Claudius Gellrich, Thomas Lenarz, Omid Majdani, Thomas S Rau
PURPOSE: Patient specific selection of cochlear implants would benefit from pre-operative knowledge of cochlear length. Several methods for its measurement or estimation have been described in literature. This study focused on the achievable accuracy in clinically available imaging. METHODS: Five simplified cochlea models milled into porcine bone were scanned in water using clinical cone beam computed tomography. Due to their well-known dimensions these phantoms served as gold standard for the length measurements...
March 12, 2018: European Archives of Oto-rhino-laryngology
Julie G Arenberg, Wendy S Parkinson, Leonid Litvak, Chen Chen, Heather A Kreft, Andrew J Oxenham
OBJECTIVES: The standard, monopolar (MP) electrode configuration used in commercially available cochlear implants (CI) creates a broad electrical field, which can lead to unwanted channel interactions. Use of more focused configurations, such as tripolar and phased array, has led to mixed results for improving speech understanding. The purpose of the present study was to assess the efficacy of a physiologically inspired configuration called dynamic focusing, using focused tripolar stimulation at low levels and less focused stimulation at high levels...
March 9, 2018: Ear and Hearing
Isabelle Magro, Susan D Emmett, James Saunders
PURPOSE OF REVIEW: Cost-effectiveness of cochlear implants is a major concern for expanding these services to low-income and middle-income developing countries. RECENT FINDINGS: Recent studies have applied appropriate methodology to make determination of cost-effectiveness for cochlear implants in developing countries. In addition, important parameters that effect cost-effectiveness have been reviewed in a systematic way. The combination of these new studies along with existing reports of cochlear implant programmes in developing countries allows for a discussion of cost and outcomes determinants that drive cost-effectiveness in these environments...
March 9, 2018: Current Opinion in Otolaryngology & Head and Neck Surgery
José Ferreira Penêda, Nuno Barros Lima, Francisco Monteiro, Joana Vilela Silva, Rita Gama, Artur Condé
INTRODUCTION: Immune Mediated Inner Ear Disease (IMIED) is a rare form of sensorineural bilateral hearing loss, usually progressing in weeks to months and responsive to immunosuppressive treatment. Despite recent advances, there is no consensus on diagnosis and optimal treatment. METHODS: A review of articles on IMIED from the last 10 years was conducted using PubMed® database. RESULTS: IMIED is a rare disease, mostly affecting middle aged women...
March 7, 2018: Acta Otorrinolaringológica Española
Jolien Faes, Steven Gillis
Purpose: This study evaluates intraword or token-to-token variability in the spontaneous speech of Dutch-speaking children with cochlear implants (CIs) longitudinally up to 5 years of age in comparison with intraword variability in age-matched peers with normal hearing (NH). Method: Spontaneous speech samples of 9 children with CI were collected longitudinally up to age 5. The data of the NH control group consisted of cross-sectional recordings. Children's word productions were categorized into 4 response types of the variability score (consistent correct, consistent incorrect, variable with hits, variable with no hits), and the proportion of whole-word variation (PWV) was calculated...
March 8, 2018: American Journal of Speech-language Pathology
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