North America to Become the Most Attractive Hearing Aids Market

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Persistence Market Research (http://ift.tt/1tOfurj) forecasts the global hearing aids market will continue to grow and reach $10.91 billion by 2024, with North America leading with over $4,600 million in market revenue as the most attractive regional market. The third-platform research firm's report cites favorable reimbursement policies, gradual increase in disposable income, increasing global geriatric population, and an increase in the prevalence of hearing impairment as the driving forces behind the hearing aids market growth. ​

Among product types, behind-the-ear hearing aids are anticipated to be the highest contributor to the global market by the end of 2016, followed by receiver-in-the-ear hearing aids. Digital hearing aids, however, are expected to be the fastest growing and most attractive segment from now to 2024, generating over $2,700 million in estimates. For the end-user market, audiology clinics will dominate the highest percentage gain in market share over the next eight years.   

Published: 11/18/2016 9:38:00 AM

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North America to Become the Most Attractive Hearing Aids Market

​

Persistence Market Research (http://ift.tt/1tOfurj) forecasts the global hearing aids market will continue to grow and reach $10.91 billion by 2024, with North America leading with over $4,600 million in market revenue as the most attractive regional market. The third-platform research firm's report cites favorable reimbursement policies, gradual increase in disposable income, increasing global geriatric population, and an increase in the prevalence of hearing impairment as the driving forces behind the hearing aids market growth. ​

Among product types, behind-the-ear hearing aids are anticipated to be the highest contributor to the global market by the end of 2016, followed by receiver-in-the-ear hearing aids. Digital hearing aids, however, are expected to be the fastest growing and most attractive segment from now to 2024, generating over $2,700 million in estimates. For the end-user market, audiology clinics will dominate the highest percentage gain in market share over the next eight years.   

Published: 11/18/2016 9:38:00 AM

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North America to Become the Most Attractive Hearing Aids Market

​

Persistence Market Research (http://ift.tt/1tOfurj) forecasts the global hearing aids market will continue to grow and reach $10.91 billion by 2024, with North America leading with over $4,600 million in market revenue as the most attractive regional market. The third-platform research firm's report cites favorable reimbursement policies, gradual increase in disposable income, increasing global geriatric population, and an increase in the prevalence of hearing impairment as the driving forces behind the hearing aids market growth. ​

Among product types, behind-the-ear hearing aids are anticipated to be the highest contributor to the global market by the end of 2016, followed by receiver-in-the-ear hearing aids. Digital hearing aids, however, are expected to be the fastest growing and most attractive segment from now to 2024, generating over $2,700 million in estimates. For the end-user market, audiology clinics will dominate the highest percentage gain in market share over the next eight years.   

Published: 11/18/2016 9:38:00 AM

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Overdrive and Edge as Refiners of “Belting”?

Publication date: Available online 18 November 2016
Source:Journal of Voice
Author(s): Julian McGlashan, Mathias Aaen Thuesen, Cathrine Sadolin
ObjectivesWe aimed to study the categorizations “Overdrive” and “Edge” from the pedagogic method Complete Vocal Technique as refiners of the often ill-defined concept of “belting” by means of audio perception, laryngostroboscopic imaging, acoustics, long-term average spectrum (LTAS), and electroglottography (EGG).Study DesignThis is a case-control study.MethodsTwenty singers were recorded singing sustained vowels in a “belting” quality refined by audio perception as “Overdrive” and “Edge.” Two studies were performed: (1) a laryngostroboscopic examination using a videonasoendoscopic camera system (Olympus) and the Laryngostrobe program (Laryngograph); (2) a simultaneous recording of the EGG and acoustic signals using Speech Studio (Laryngograph). The images were analyzed based on consensus agreement. Statistical analysis of the acoustic, LTAS, and EGG parameters was undertaken using the Student paired t test.ResultsThe two modes of singing determined by audio perception have visibly different laryngeal gestures: Edge has a more constricted setting than that of Overdrive, where the ventricular folds seem to cover more of the vocal folds, the aryepiglottic folds show a sharper edge in Edge, and the cuneiform cartilages are rolled in anteromedially. LTAS analysis shows a statistical difference, particularly after the ninth harmonic, with a coinciding first formant. The combined group showed statistical differences in shimmer, harmonics-to-noise ratio, normalized noise energy, and mean sound pressure level (P ≥ 0.05).Conclusion“Belting” sounds can be categorized using audio perception into two modes of singing: “Overdrive” and “Edge.” This study demonstrates consistent visibly different laryngeal gestures between these modes and with some correspondingly significant differences in LTAS, EGG, and acoustic measures.



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Functional Voice Disorders: The Importance of the Psychologist in Clinical Voice Assessment

Publication date: Available online 18 November 2016
Source:Journal of Voice
Author(s): Mafalda Andrea, Óscar Dias, Mário Andrea, Maria Luísa Figueira
ObjectivesThe etiopathogenesis of functional voice disorders (FVDs) is multifactorial. The purpose of this study was to analyze the severity of depression and anxiety, and the incidence of affective and anxiety disorders, in patients who presented different types of FVDs and were followed at the University Clinic of Otolaryngology.DesignThis is a cross-sectional study.MethodsAfter ENT observation, 83 women were classified into three groups: psychogenic voice disorder (PVD = 39), primary muscle tension voice disorder (MTVD1 = 16), and secondary muscle tension voice disorder (MTVD2 = 28). A psychologist assessed the severity of depression and anxiety using the Hamilton rating scales, and screened for affective and anxiety disorders using the Mini International Neuropsychiatric Interview.ResultsSignificant differences in the mean values were found between the groups, with the MTVD1 group having higher levels of depression and anxiety. In affective disorders (current major depression and current mood disorder with psychotic symptoms) and in anxiety disorders (lifetime panic disorder, current generalized anxiety, and current panic disorder with agoraphobia), significant differences in association were found between groups.ConclusionsGroups presented with significant differences in depression and anxiety levels, and in some psychiatric diagnoses. Patients with FVDs should be independently assessed regarding their voice disorder classification. The integration of a psychologist in the clinical voice assessment team is essential, as findings have corroborated an important incidence of psychiatric disorders in FVDs patients.



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A Novel Mutation in SLC26A4 Causes Nonsyndromic Autosomal Recessive Hearing Impairment.

Background: Heterozygous mutations in GJB2 (MIM: 121011) encoding the gap junction protein connexin 26 are overrepresented in patient groups suffering from nonsyndromic sensorineural hearing impairment (HI) implying the involvement of additional genetic factors. Mutations in SLC26A4 (MIM: 605646), encoding the protein pendrin can cause both Pendred syndrome and autosomal recessive, nonsyndromic HI locus 4 type sensorineural HI (MIM: 600791). Objectives: Aim of this study was to investigate the role of SLC26A4 coding mutations in a nonsyndromic hearing impairment (NSHI) patient group bearing heterozygous GJB2 35delG mutations. Design: We analyzed the 20 coding exons of SLC26A4 in a group of patients (n = 15) bearing heterozygous 35delG mutations and exclusively suffering from congenital HI. Results: In a case of bilateral congenital hearing loss we identified a rare, novel SLC26A4 exon 2 splice donor mutation (c.164+1delG) predicted to truncate pendrin in the first cytoplasmic domain, as a compound heterozygote with the pathogenic missense mutation c.1061T>C (p.354F>S; rs111033243). Conclusions: Screening for SLC26A4 mutations may identify the genetic causes of hearing loss in patients bearing heterozygous mutations in GJB2. Hypothesis: SLC26A4 coding mutations are genetic causes for nonsyndromic HI in patients bearing heterozygous GJB2 35delG mutations. Copyright (C) 2016 by Otology & Neurotology, Inc. Image copyright (C) 2010 Wolters Kluwer Health/Anatomical Chart Company

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Steerable Robot-assisted Micromanipulation in the Middle Ear: Preliminary Feasibility Evaluation.

Hypothesis: The use of a robotic manipulator with a dexterously orientable gripper will expand the ability of middle ear surgeons to perform precise tasks and access otherwise challenging anatomic regions. Background: Middle ear surgery presents unique challenges because of the constrained operative space and limited access to certain anatomic regions. Methods: A custom-designed robot with a sideways-reaching gripper was used to evaluate feasibility of manipulation tasks in different middle-ear anatomical zones. Reachable workspace within the middle ear, accuracy of free-space path following, and tool steadiness were compared between robotic telemanipulation and manual control. Preliminarily assessments of the robot's clinical utility included: 1) touching the round window niche, Eustachian tube orifice, and sinus tympani; 2) placing a stapes prosthesis; 3) removal of mockup diseased tissue in the sinus tympani. Results: The reachable workspace in the middle ear was considerably greater with the robot as compared with manual manipulation using a Rosen needle. In a simple path-tracing task outside the ear, robotic telemanipulation was associated with significantly reduced error. Within the middle ear, the robot contributed to steadier movement, but longer task completion time. The gripper successfully placed a 4.5 mm piston prosthesis, accessed the round window niche, Eustachian tube orifice, and removed mockup disease from the sinus tympani. Conclusion: This study demonstrates that robotic assistance using steerable tools allows surgeons to access challenging anatomic regions of the middle ear. Coordinated and accurate manipulation is evidenced by motion analyses and completion of feasibility tasks within the middle ear. Copyright (C) 2016 by Otology & Neurotology, Inc. Image copyright (C) 2010 Wolters Kluwer Health/Anatomical Chart Company

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