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Τρίτη 6 Δεκεμβρίου 2016
Development of an auditory situation awareness test battery for advanced hearing protectors and TCAPS: detection subtest of DRILCOM (detection-recognition/identification-localization-communication).
 |
Related Articles |
Development of an auditory situation awareness test battery for advanced hearing protectors and TCAPS: detection subtest of DRILCOM (detection-recognition/identification-localization-communication).
Int J Audiol. 2016 Dec 01;:1-12
Authors: Lee K, Casali JG
Abstract
OBJECTIVE: To design a test battery and conduct a proof-of-concept experiment of a test method that can be used to measure the detection performance afforded by military advanced hearing protection devices (HPDs) and tactical communication and protective systems (TCAPS).
DESIGN: The detection test was conducted with each of the four loudspeakers located at front, right, rear and left of the participant. Participants wore 2 in-ear-type TCAPS, 1 earmuff-type TCAPS, a passive Combat Arms Earplug in its "open" or pass-through setting and an EB-15LE™ electronic earplug. Devices with electronic gain systems were tested under two gain settings: "unity" and "max". Testing without any device (open ear) was conducted as a control.
STUDY SAMPLE: Ten participants with audiometric requirements of 25 dBHL or better at 500, 1000, 2000, 4000, 8000 Hz in both ears.
RESULTS: Detection task performance varied with different signals and speaker locations. The test identified performance differences among certain TCAPS and protectors, and the open ear.
CONCLUSIONS: A computer-controlled detection subtest of the Detection-Recognition/Identification-Localisation-Communication (DRILCOM) test battery was designed and implemented. Tested in a proof-of-concept experiment, it showed statistically-significant sensitivity to device differences in detection effects with the small sample of participants (10). This result has important implications for selection and deployment of TCAPS and HPDs on soldiers and workers in dynamic situations.
PMID: 27905220 [PubMed - as supplied by publisher]
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JAAA CEU Program.
JAAA CEU Program.
J Am Acad Audiol. 2016 Nov/Dec;27(10):855-856
Authors:
PMID: 27885982 [PubMed - in process]
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Index to Volume 27.
Index to Volume 27.
J Am Acad Audiol. 2016 Nov/Dec;27(10):851-854
Authors:
PMID: 27885981 [PubMed - in process]
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A Revision Surgery for Cochlear Implantation in a Case of Incomplete Partition Type I.
A Revision Surgery for Cochlear Implantation in a Case of Incomplete Partition Type I.
J Am Acad Audiol. 2016 Nov/Dec;27(10):846-850
Authors: Rizk HG, Hagood F, Holcomb MA, Meyer TA
Abstract
BACKGROUND: Patients with cochlear malformations were long considered poor candidates for cochlear implantation (CI), and surgical approaches different than the standard facial recess approach were used to access the inner ear. There is no previous long-term follow-up of a patient with significantly malformed inner ear operated through an untraditional route and requiring a revision surgery.
PURPOSE: This case provides a long-term follow-up from the initial surgery, a short-term follow-up from the revision surgery, and it illustrates the evolving classification of inner ear malformations as well as the potential problems associated with nonstandard approaches to the cochlea.
RESEARCH DESIGN: A case report.
INTERVENTION: Herein, we report a case of revision CI in a patient with incomplete partition type I, through the round window via a facial recess approach, 18 yr after an initial implantation via a transmastoid labyrinthotomy approach.
RESULTS: The patient had an uncomplicated surgery, and after activation, she noted auditory perception on all electrodes without facial stimulation. A sound field sound awareness threshold was obtained at 15 dB HL.
CONCLUSIONS: As the prior generation of cochlear implant recipients ages, the probability of a revision surgery for various causes increases. Cochlear implant surgeons should be aware of the potential pitfalls associated in these often challenging cases.
PMID: 27885980 [PubMed - in process]
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Gender Differences in Audiological Findings and Hearing Aid Benefit in 255 Individuals with Auditory Neuropathy Spectrum Disorder: A Retrospective Study.
Gender Differences in Audiological Findings and Hearing Aid Benefit in 255 Individuals with Auditory Neuropathy Spectrum Disorder: A Retrospective Study.
J Am Acad Audiol. 2016 Nov/Dec;27(10):839-845
Authors: Narne VK, Prabhu P, Chandan HS, Deepthi M
Abstract
BACKGROUND: There are many studies reported in the literature that have summarized audiological findings and possible rehabilitation in individuals with auditory neuropathy spectrum disorder (ANSD). However, there are very few studies that have attempted to delineate the gender differences in audiological characteristics and hearing aid benefit in individuals with ANSD.
PURPOSE: The study aimed to explore the differences between males and females in terms of demographic details, audiogram, speech identification scores, otoacoustic emissions, acoustic reflexes, long latency responses, and hearing aid benefit.
RESEARCH DESIGN: A retrospective study.
STUDY SAMPLE: A total of 255 individuals diagnosed with ANSD were selected for the study. The study included 137 females and 88 males.
DATA COLLECTION AND ANALYSIS: The demographic details, results of diagnostic audiological testing, and hearing aid benefit were analyzed retrospectively. The differences in findings across gender were compared.
RESULTS: The study shows that females have a relatively higher degree of hearing loss and that the majority of females show a rising type of audiometric configuration. The study shows that females have poorer speech perception abilities and experience limited benefits from hearing aids compared to males.
CONCLUSIONS: The results of the study show that there are gender differences in audiological findings and hearing aid benefits in individuals with ANSD. However, well-controlled prospective studies are essential to confirm the results obtained and to identify the possible mechanisms underlying the gender differences.
PMID: 27885979 [PubMed - in process]
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Factors Affecting Daily Cochlear Implant Use in Children: Datalogging Evidence.
Factors Affecting Daily Cochlear Implant Use in Children: Datalogging Evidence.
J Am Acad Audiol. 2016 Nov/Dec;27(10):824-838
Authors: Easwar V, Sanfilippo J, Papsin B, Gordon K
Abstract
BACKGROUND: Children with profound hearing loss can gain access to sound through cochlear implants (CIs), but these devices must be worn consistently to promote auditory development. Although subjective parent reports have identified several factors limiting long-term CI use in children, it is also important to understand the day-to-day issues which may preclude consistent device use. In the present study, objective measures gathered through datalogging software were used to quantify the following in children: (1) number of hours of CI use per day, (2) practical concerns including repeated disconnections between the external transmission coil and the internal device (termed "coil-offs"), and (3) listening environments experienced during daily use.
PURPOSE: This study aimed to (1) objectively measure daily CI use and factors influencing consistent device use in children using one or two CIs and (2) evaluate the intensity levels and types of listening environments children are exposed to during daily CI use.
RESEARCH DESIGN: Retrospective analysis.
STUDY SAMPLE: Measures of daily CI use were obtained from 146 pediatric users of Cochlear Nucleus 6 speech processors. The sample included 5 unilateral, 40 bimodal, and 101 bilateral CI users (77 simultaneously and 24 sequentially implanted).
DATA COLLECTION AND ANALYSIS: Daily CI use, duration, and frequency of coil-offs per day, and the time spent in multiple intensity ranges and environment types were extracted from the datalog saved during clinic appointments. Multiple regression analyses were completed to predict daily CI use based on child-related demographic variables, and to evaluate the effects of age on coil-offs and environment acoustics.
RESULTS: Children used their CIs for 9.86 ± 3.43 hr on average on a daily basis, with use exceeding 9 hr per day in ∼64% of the children. Daily CI use reduced significantly with increasing durations of coil-off (p = 0.027) and increased significantly with longer CI experience (p < 0.001) and pre-CI acoustic experience (p < 0.001), when controlled for the child's age. Total time in sound (sum of CI and pre-CI experience) was positively correlated with CI use (r = 0.72, p < 0.001). Longer durations of coil-off were associated with higher frequency of coil-offs (p < 0.001). The frequency of coil-offs ranged from 0.99 to 594.10 times per day and decreased significantly with age (p < 0.001). Daily CI use and frequency of coil-offs did not vary significantly across known etiologies. Listening environments of all children typically ranged between 50 and 70 dBA. Children of all ages were exposed to speech in noisy environments. Environment classified as "music" was identified more often in younger children.
CONCLUSIONS: The majority of children use their CIs consistently, even during the first year of implantation. The frequency of coil-offs is a practical challenge in infants and young children, and demonstrates the need for improved coil retention methods for pediatric use. Longer hearing experience and shorter coil-off time facilitates consistent CI use. Children are listening to speech in noisy environments most often, thereby indicating a need for better access to binaural cues, signal processing, and stimulation strategies to aid listening. Study findings could be useful in parent counseling of young and/or new CI users.
PMID: 27885978 [PubMed - in process]
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Preference to Patient-Centeredness in Undergraduate Audiology Students in Portugal.
Preference to Patient-Centeredness in Undergraduate Audiology Students in Portugal.
J Am Acad Audiol. 2016 Nov/Dec;27(10):816-823
Authors: Manchaiah V, Tomé D, Dockens AL, Harn M, Ganesan P
Abstract
BACKGROUND: In health care, the model of patient-centered care is growing; and improved outcomes have been linked to patient-centeredness. Practicing audiologists have been found to strongly prefer a patient-centered approach as years in practice increase. It is unknown whether patient-centeredness begins during education and training.
PURPOSE: The current study was aimed at understanding the preference to patient-centeredness in undergraduate audiology students in Portugal.
RESEARCH DESIGN: The study used a cross-sectional survey design.
STUDY SAMPLE: One hundred and thirty-seven undergraduate audiology students completed patient-practitioner orientation scale (PPOS) and provided some demographic details.
DATA COLLECTION AND ANALYSIS: The data were analyzed using one-way analysis of variance and one-sample t tests.
RESULTS: A significant difference was found for sharing subscale (p ≤ 0.001), caring subscale (p = 0.033), and the PPOS full scale (p ≤ 0.001) among different undergraduate groups. Further, post hoc tests showed that the difference between year 1 and with years 2, 3, and 4 were significant for sharing subscale and PPOS full scale, but not for caring subscale. No significant differences were observed among the years 2, 3, and 4 for sharing subscale, caring subscale, and for PPOS full scale. When compared audiologists' preferences from a previous study on audiologists with students' preferences in the current study, significant difference for both subscales and full scale was found between year 1 students and audiologists (p ≤ 0.001), with higher preference to patient-centeredness was reported by qualified audiologists. Also, significant difference was found between audiologists and overall undergraduate group for caring subscale (p = 0.001).
CONCLUSIONS: The current study suggests that audiology education influences preference to patient-centeredness. Within a year of undergraduate coursework, students tend to develop high preference to patient-centeredness, which stays stable during four years of undergraduate studies. These results provide useful insights to audiology education and training, particularly in the context of audiological rehabilitation.
PMID: 27885977 [PubMed - in process]
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Negative Effect of Acoustic Panels on Listening Effort in a Classroom Environment.
Negative Effect of Acoustic Panels on Listening Effort in a Classroom Environment.
J Am Acad Audiol. 2016 Nov/Dec;27(10):805-815
Authors: Amlani AM, Russo TA
Abstract
BACKGROUND: Acoustic panels are used to lessen the pervasive effects of noise and reverberation on speech understanding in a classroom environment. These panels, however, predominately absorb high-frequency energy important to speech understanding. Therefore, a classroom environment treated with acoustic panels might negatively influence the transmission of the target signal, resulting in an increase in listening effort exerted by the listener.
PURPOSE: Acoustic panels were installed in a public school environment that did not meet the ANSI-recommended guidelines for classroom design. We assessed the modifications to the acoustic climate by quantifying the effect of (1) acoustic panel (i.e., without, with) on the transmission of a standardized target signal at different seat positions (i.e., A-D) using the Speech Transmission Index (STI) and (2) acoustic panel and seat position on listening-effort performance in a group of third-grade students having normal-hearing sensitivity using a dual-task paradigm.
RESEARCH DESIGN: STI measurements are described qualitatively. We used a repeated-measures randomized design to assess listening-effort performance of monosyllabic words in a primary task and digit recall in a secondary task for the independent variables of acoustic panel and seat position.
STUDY SAMPLE: Twenty-seven, third-grade students (12 males, 15 females), ranging in age from 8.3 to 9.4 yr (mean = 8.7 yr, standard deviation = 0.7), participated in this study.
DATA COLLECTION AND ANALYSIS: Qualitatively, we performed STI measurements under both testing conditions (i.e., panel and seat location). For the primary task of the dual-task paradigm, participants heard a ten-item list of monosyllabic words (i.e., ten words per list) recorded through a manikin in the classroom environment without and with acoustic panels and at different seat positions. Participants were asked to repeat each word exactly as it was heard. During the secondary task, participants were shown a single, random string of five digits before the presentation of the monosyllabic words. After each list in the primary task was completed, participants were asked to recall the string of five digits verbatim.
RESULTS: Word-recognition and digit-recall performance decreased with the presence of acoustic panels and as the distance from the target signal to a given seat location increased. The results were validated using the STI, as indicated by a decrease in the transmission of the target signal in the presence of acoustic panel and as the distance to a given seat location increased.
CONCLUSIONS: The inclusion of acoustic panels reduced the negative effects of noise and reverberation in a classroom environment, resulting in an acoustic climate that complied with the ANSI-recommended guidelines for classroom design. Results, however, revealed that participants required an increased amount of mental effort when the classroom was modified with acoustic treatment compared to no acoustic treatment. Independent of acoustic treatment, mental effort was greatest at seat locations beyond the critical distance (CD). With the addition of acoustic panels, mental effort was found to increase significantly at seat locations beyond the CD compared to the unmodified room condition. Overall, results indicate that increasing the distance between the teacher and child has a detrimental impact on mental effort and, ultimately, academic performance.
PMID: 27885976 [PubMed - in process]
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Hearing Benefit and Rated Satisfaction in Children with Unilateral Conductive Hearing Loss Using a Transcutaneous Magnetic-Coupled Bone-Conduction Hearing Aid.
Hearing Benefit and Rated Satisfaction in Children with Unilateral Conductive Hearing Loss Using a Transcutaneous Magnetic-Coupled Bone-Conduction Hearing Aid.
J Am Acad Audiol. 2016 Nov/Dec;27(10):790-804
Authors: Polonenko MJ, Carinci L, Gordon KA, Papsin BC, Cushing SL
Abstract
BACKGROUND: Bilateral hearing is important for learning, development, and function in complex everyday environments. Children with conductive and mixed hearing loss (HL) have been treated for years with percutaneous coupling through an abutment, which achieves powerful output, but the implant site is susceptible to skin reactions and trauma. To overcome these complications, transcutaneous magnetic coupling systems were recently introduced.
PURPOSE: The purpose of the study was to evaluate whether the new transcutaneous magnetic coupling is an effective coupling paradigm for bone-conduction hearing aids (BCHAs). We hypothesized that magnetic coupling will (1) have limited adverse events, (2) provide adequate functional gain, (3) improve spatial hearing and aid listening in everyday situations, and (4) provide satisfactory outcomes to children and their families given one normal hearing ear.
RESEARCH DESIGN: Retrospective analysis of audiological outcomes in a tertiary academic pediatric hospital.
STUDY SAMPLE: Nine children aged 5-17 yr with permanent unilateral conductive HL (UCHL) or mixed HL were implanted with a transcutaneous magnet-retained BCHA. Average hearing thresholds of the better and implanted ears were 12.3 ± 11.5 dB HL and 69.1 ± 11.6 dB HL, respectively, with a 59.4 ± 4.8 dB (mean ± standard deviation) conductive component.
DATA COLLECTION AND ANALYSIS: Data were extracted from audiology charts of the children with permanent UCHL or mixed HL who qualified for a surgically retained BCHA and agreed to the magnetic coupling. Outcomes were collected from the 3- to 9-mo follow-up appointments, and included surgical complications, aided audiometric thresholds with varying magnet strength, speech performance in quiet and noise, and patient-rated benefit and satisfaction using questionnaires. Repeated measures analysis of variance was used to analyze audiometric outcomes, and nonparametric tests were used to evaluate rated benefit and satisfaction.
RESULTS: All nine children tolerated the device and only one child had discomfort at the wound site. Similar access to sound was achieved regardless of magnet strength. Speech performance did not significantly improve in quiet or noise conditions with +10 and +5 dB signal-to-noise ratio. Children benefited from spatially separating the noise from the speech signal, regardless of whether the noise was directed to the implanted or better ear. When wearing the BCHA, the children reported satisfaction and significant implant benefit, particularly in background noise, but at the expense of increased aversiveness to sound.
CONCLUSIONS: Our findings, therefore, indicate that providing a transcutaneous magnetic-coupled BCHA to children who have UCHL or mixed HL provides benefit on some objective measures of bilateral hearing, as well as some subjective benefit in noise and everyday situations.
PMID: 27885975 [PubMed - in process]
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The Academy Research Grants in Hearing and Balance.
The Academy Research Grants in Hearing and Balance.
J Am Acad Audiol. 2016 Nov/Dec;27(10):788-789
Authors: Shinn J, McCaslin D
PMID: 27885974 [PubMed - in process]
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Development of an auditory situation awareness test battery for advanced hearing protectors and TCAPS: detection subtest of DRILCOM (detection-recognition/identification-localization-communication).
|
Related Articles |
Development of an auditory situation awareness test battery for advanced hearing protectors and TCAPS: detection subtest of DRILCOM (detection-recognition/identification-localization-communication).
Int J Audiol. 2016 Dec 01;:1-12
Authors: Lee K, Casali JG
Abstract
OBJECTIVE: To design a test battery and conduct a proof-of-concept experiment of a test method that can be used to measure the detection performance afforded by military advanced hearing protection devices (HPDs) and tactical communication and protective systems (TCAPS).
DESIGN: The detection test was conducted with each of the four loudspeakers located at front, right, rear and left of the participant. Participants wore 2 in-ear-type TCAPS, 1 earmuff-type TCAPS, a passive Combat Arms Earplug in its "open" or pass-through setting and an EB-15LE™ electronic earplug. Devices with electronic gain systems were tested under two gain settings: "unity" and "max". Testing without any device (open ear) was conducted as a control.
STUDY SAMPLE: Ten participants with audiometric requirements of 25 dBHL or better at 500, 1000, 2000, 4000, 8000 Hz in both ears.
RESULTS: Detection task performance varied with different signals and speaker locations. The test identified performance differences among certain TCAPS and protectors, and the open ear.
CONCLUSIONS: A computer-controlled detection subtest of the Detection-Recognition/Identification-Localisation-Communication (DRILCOM) test battery was designed and implemented. Tested in a proof-of-concept experiment, it showed statistically-significant sensitivity to device differences in detection effects with the small sample of participants (10). This result has important implications for selection and deployment of TCAPS and HPDs on soldiers and workers in dynamic situations.
PMID: 27905220 [PubMed - as supplied by publisher]
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Positional Occlusion of Vertebral Artery Due to Cervical Spondylosis as Rare Cause of Wake-up Stroke: Report of 2 Cases.
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Related Articles |
Positional Occlusion of Vertebral Artery Due to Cervical Spondylosis as Rare Cause of Wake-up Stroke: Report of 2 Cases.
World Neurosurg. 2016 Nov 24;:
Authors: Nishikawa H, Miya F, Kitano Y, Mori G, Shimizu S, Suzuki H
Abstract
BACKGROUND: Positional compression of the vertebral artery (VA) due to cervical spondylosis is an uncommon cause of stroke. We report two cases of cervical spondylosis causing wake-up stroke, which is extremely rare.
CASE DESCRIPTION: The first case was a 78-year-old woman who presented with vertigo and vomiting lasting from waking up. Magnetic resonance (MR) images and angiography documented right cerebellar infarction, and stenosis of the right cervical VA. Dynamic angiography revealed that the right VA was occluded when her neck was extended or rotated to the right. Computed tomography (CT) angiography revealed the right VA compression by the right C5 superior articular process osteophytes. The second case was a 77-year-old man who presented with dysarthria from waking up. MR images and angiography revealed right cerebellar infarction associated with the right VA stenosis and the left VA occlusion at C5-6, whose cause was diagnosed as compression due to bilateral uncovertebral osteophytes on CT angiography. Dynamic angiography showed that neck rotation to the right aggravated the right VA stenosis while recanalized the left VA. Both patients were treated with a free radical scavenger edaravone and heparin, and underwent surgical decompression of VAs 14 or 18 days after onset. No recurrent ischemic events occurred thereafter.
CONCLUSIONS: MR angiography of extracranial cervical VAs may be useful as an initial screening test for VA compression secondary to cervical spondylosis as a rare cause of wake-up stroke, especially in cases of cerebral infarction in the posterior circulation with no evidences of causative arrhythmia and intracranial lesions.
PMID: 27890763 [PubMed - as supplied by publisher]
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AAO: Autoimmune and Autoinflammatory (Disease) in Otology: What is New in Immune-Mediated Hearing Loss.
| Related Articles |
AAO: Autoimmune and Autoinflammatory (Disease) in Otology: What is New in Immune-Mediated Hearing Loss.
Laryngoscope Investig Otolaryngol. 2016 Oct;1(5):110-115
Authors: Vambutas A, Pathak S
Abstract
OBJECTIVES: Autoinflammatory diseases are a family of immune-mediated, rare diseases, some of which, exhibit sensorineural hearing loss (SNHL), suggesting potentially similar mechanisms of molecular pathogenesis between autoinflammatory-mediated hearing loss and autoimmune inner ear disease (AIED) may exist. The purpose of this review is to compare the clinical features of autoimmune and autoinflammatory diseases that affect hearing, discuss the limitations of our knowledge, and highlight potential new disease mechanisms and therapeutics.
DATA SOURCES: Pubmed Literature Review; Google Scholar Literature review.
REVIEW METHODS: A focused comparison of AIED with a number of autoinflammatory diseases that manifest with sensorineural hearing loss was performed. The pathogenesis of these diseases is reviewed in the context of the innate and adaptive immune system, cytokine expression and genetic polymorphisms.
RESULTS: AIED, since first described by Cogan and Lehnhardt and first clinically characterized by McCabe, has remained an enigmatic disease, with limited advances in both new diagnostics and new therapeutics. Since the discovery of autoinflammatory diseases, a number of systemic autoimmune diseases have either been re-classed as autoinflammatory diseases or identified to have features of autoinflammatory disease.
CONCLUSION: AIED has clinical features of both autoimmune and autoinflammatory disease. It is critical that autoinflammatory diseases be correctly identified, as failure to do so may result in systemic amyloidosis and kidney damage.
PMID: 27917401 [PubMed - in process]
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Comprehensive Genetic Analysis of Japanese Autosomal Dominant Sensorineural Hearing Loss Patients.
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Related Articles |
Comprehensive Genetic Analysis of Japanese Autosomal Dominant Sensorineural Hearing Loss Patients.
PLoS One. 2016;11(12):e0166781
Authors: Iwasa YI, Nishio SY, Usami SI
Abstract
BACKGROUND: In general, autosomal dominant inherited hearing loss does not have a founder mutation, with the causative mutation different in each family. For this reason, there has been a strong need for efficient diagnosis methods for autosomal dominant sensorineural hearing loss (ADSNHL) patients. This study sought to verify the effectiveness of our analysis algorithm for the screening of ADSNHL patients as well as the usefulness of the massively parallel DNA sequencing (MPS).
SUBJECTS AND METHODS: Seventy-five Japanese ADSNHL patients from 53 ENT departments nationwide participated in this study. We conducted genetic analysis of 75 ADSNHL patients using the Invader assay, TaqMan genotyping assay and MPS-based genetic screening.
RESULTS: A total of 46 (61.3%) ADSNHL patients were found to have at least one candidate gene variant.
CONCLUSION: We were able to achieve a high mutation detection rate through the combination of the Invader assay, TaqMan genotyping assay and MPS. MPS could be used to successfully identify mutations in rare deafness genes.
PMID: 27911912 [PubMed - in process]
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Hearing Care Intervention for Persons with Dementia: A Pilot Study.
|
Related Articles |
Hearing Care Intervention for Persons with Dementia: A Pilot Study.
Am J Geriatr Psychiatry. 2016 Sep 22;:
Authors: Mamo SK, Nirmalasari O, Nieman CL, McNabney MK, Simpson A, Oh ES, Lin FR
Abstract
OBJECTIVE: Hearing loss is a commonly unmet need among adults with dementia that may exacerbate common dementia-related behavioral symptoms. Accessing traditional audiology services for hearing loss is a challenge because of high cost and time commitment. To improve accessibility and affordability of hearing treatment for persons with dementia, there is a need for unique service delivery models. The purpose of this study is to test a novel hearing intervention for persons with dementia and family caregivers delivered in outpatient settings.
METHODS: The Memory-HEARS pilot study delivered a 2-hour in-person intervention in an outpatient setting. A trained interventionist provided hearing screening, communication strategies, and provision of and instruction using a simple over-the-counter amplification device. Caregivers (N = 20) responded to questionnaires related to depression, neuropsychiatric symptoms, and caregiver burden at baseline and 1-month postintervention.
RESULTS: Overall, caregivers believed the intervention was beneficial, and most participants with dementia wore the amplification device daily. For the depression and neuropsychiatric outcome measures, participants with high symptom burden at baseline showed improvement at 1-month postintervention. The intervention had no effect on caregiver burden. Qualitative responses from caregivers described improved engagement for their loved ones, such as laughing more, telling more stories, asking more questions, and having more patience.
CONCLUSION: The Memory-HEARS intervention is a low-cost, low-risk, nonpharmacologic approach to addressing hearing loss and behavioral symptoms in patients with dementia. Improved communication has the potential to reduce symptom burden and improve quality of life.
PMID: 27890543 [PubMed - as supplied by publisher]
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Development of an auditory situation awareness test battery for advanced hearing protectors and TCAPS: detection subtest of DRILCOM (detection-recognition/identification-localization-communication).
|
Related Articles |
Development of an auditory situation awareness test battery for advanced hearing protectors and TCAPS: detection subtest of DRILCOM (detection-recognition/identification-localization-communication).
Int J Audiol. 2016 Dec 01;:1-12
Authors: Lee K, Casali JG
Abstract
OBJECTIVE: To design a test battery and conduct a proof-of-concept experiment of a test method that can be used to measure the detection performance afforded by military advanced hearing protection devices (HPDs) and tactical communication and protective systems (TCAPS).
DESIGN: The detection test was conducted with each of the four loudspeakers located at front, right, rear and left of the participant. Participants wore 2 in-ear-type TCAPS, 1 earmuff-type TCAPS, a passive Combat Arms Earplug in its "open" or pass-through setting and an EB-15LE™ electronic earplug. Devices with electronic gain systems were tested under two gain settings: "unity" and "max". Testing without any device (open ear) was conducted as a control.
STUDY SAMPLE: Ten participants with audiometric requirements of 25 dBHL or better at 500, 1000, 2000, 4000, 8000 Hz in both ears.
RESULTS: Detection task performance varied with different signals and speaker locations. The test identified performance differences among certain TCAPS and protectors, and the open ear.
CONCLUSIONS: A computer-controlled detection subtest of the Detection-Recognition/Identification-Localisation-Communication (DRILCOM) test battery was designed and implemented. Tested in a proof-of-concept experiment, it showed statistically-significant sensitivity to device differences in detection effects with the small sample of participants (10). This result has important implications for selection and deployment of TCAPS and HPDs on soldiers and workers in dynamic situations.
PMID: 27905220 [PubMed - as supplied by publisher]
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JAAA CEU Program.
JAAA CEU Program.
J Am Acad Audiol. 2016 Nov/Dec;27(10):855-856
Authors:
PMID: 27885982 [PubMed - in process]
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Index to Volume 27.
Index to Volume 27.
J Am Acad Audiol. 2016 Nov/Dec;27(10):851-854
Authors:
PMID: 27885981 [PubMed - in process]
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A Revision Surgery for Cochlear Implantation in a Case of Incomplete Partition Type I.
A Revision Surgery for Cochlear Implantation in a Case of Incomplete Partition Type I.
J Am Acad Audiol. 2016 Nov/Dec;27(10):846-850
Authors: Rizk HG, Hagood F, Holcomb MA, Meyer TA
Abstract
BACKGROUND: Patients with cochlear malformations were long considered poor candidates for cochlear implantation (CI), and surgical approaches different than the standard facial recess approach were used to access the inner ear. There is no previous long-term follow-up of a patient with significantly malformed inner ear operated through an untraditional route and requiring a revision surgery.
PURPOSE: This case provides a long-term follow-up from the initial surgery, a short-term follow-up from the revision surgery, and it illustrates the evolving classification of inner ear malformations as well as the potential problems associated with nonstandard approaches to the cochlea.
RESEARCH DESIGN: A case report.
INTERVENTION: Herein, we report a case of revision CI in a patient with incomplete partition type I, through the round window via a facial recess approach, 18 yr after an initial implantation via a transmastoid labyrinthotomy approach.
RESULTS: The patient had an uncomplicated surgery, and after activation, she noted auditory perception on all electrodes without facial stimulation. A sound field sound awareness threshold was obtained at 15 dB HL.
CONCLUSIONS: As the prior generation of cochlear implant recipients ages, the probability of a revision surgery for various causes increases. Cochlear implant surgeons should be aware of the potential pitfalls associated in these often challenging cases.
PMID: 27885980 [PubMed - in process]
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Gender Differences in Audiological Findings and Hearing Aid Benefit in 255 Individuals with Auditory Neuropathy Spectrum Disorder: A Retrospective Study.
Gender Differences in Audiological Findings and Hearing Aid Benefit in 255 Individuals with Auditory Neuropathy Spectrum Disorder: A Retrospective Study.
J Am Acad Audiol. 2016 Nov/Dec;27(10):839-845
Authors: Narne VK, Prabhu P, Chandan HS, Deepthi M
Abstract
BACKGROUND: There are many studies reported in the literature that have summarized audiological findings and possible rehabilitation in individuals with auditory neuropathy spectrum disorder (ANSD). However, there are very few studies that have attempted to delineate the gender differences in audiological characteristics and hearing aid benefit in individuals with ANSD.
PURPOSE: The study aimed to explore the differences between males and females in terms of demographic details, audiogram, speech identification scores, otoacoustic emissions, acoustic reflexes, long latency responses, and hearing aid benefit.
RESEARCH DESIGN: A retrospective study.
STUDY SAMPLE: A total of 255 individuals diagnosed with ANSD were selected for the study. The study included 137 females and 88 males.
DATA COLLECTION AND ANALYSIS: The demographic details, results of diagnostic audiological testing, and hearing aid benefit were analyzed retrospectively. The differences in findings across gender were compared.
RESULTS: The study shows that females have a relatively higher degree of hearing loss and that the majority of females show a rising type of audiometric configuration. The study shows that females have poorer speech perception abilities and experience limited benefits from hearing aids compared to males.
CONCLUSIONS: The results of the study show that there are gender differences in audiological findings and hearing aid benefits in individuals with ANSD. However, well-controlled prospective studies are essential to confirm the results obtained and to identify the possible mechanisms underlying the gender differences.
PMID: 27885979 [PubMed - in process]
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Factors Affecting Daily Cochlear Implant Use in Children: Datalogging Evidence.
Factors Affecting Daily Cochlear Implant Use in Children: Datalogging Evidence.
J Am Acad Audiol. 2016 Nov/Dec;27(10):824-838
Authors: Easwar V, Sanfilippo J, Papsin B, Gordon K
Abstract
BACKGROUND: Children with profound hearing loss can gain access to sound through cochlear implants (CIs), but these devices must be worn consistently to promote auditory development. Although subjective parent reports have identified several factors limiting long-term CI use in children, it is also important to understand the day-to-day issues which may preclude consistent device use. In the present study, objective measures gathered through datalogging software were used to quantify the following in children: (1) number of hours of CI use per day, (2) practical concerns including repeated disconnections between the external transmission coil and the internal device (termed "coil-offs"), and (3) listening environments experienced during daily use.
PURPOSE: This study aimed to (1) objectively measure daily CI use and factors influencing consistent device use in children using one or two CIs and (2) evaluate the intensity levels and types of listening environments children are exposed to during daily CI use.
RESEARCH DESIGN: Retrospective analysis.
STUDY SAMPLE: Measures of daily CI use were obtained from 146 pediatric users of Cochlear Nucleus 6 speech processors. The sample included 5 unilateral, 40 bimodal, and 101 bilateral CI users (77 simultaneously and 24 sequentially implanted).
DATA COLLECTION AND ANALYSIS: Daily CI use, duration, and frequency of coil-offs per day, and the time spent in multiple intensity ranges and environment types were extracted from the datalog saved during clinic appointments. Multiple regression analyses were completed to predict daily CI use based on child-related demographic variables, and to evaluate the effects of age on coil-offs and environment acoustics.
RESULTS: Children used their CIs for 9.86 ± 3.43 hr on average on a daily basis, with use exceeding 9 hr per day in ∼64% of the children. Daily CI use reduced significantly with increasing durations of coil-off (p = 0.027) and increased significantly with longer CI experience (p < 0.001) and pre-CI acoustic experience (p < 0.001), when controlled for the child's age. Total time in sound (sum of CI and pre-CI experience) was positively correlated with CI use (r = 0.72, p < 0.001). Longer durations of coil-off were associated with higher frequency of coil-offs (p < 0.001). The frequency of coil-offs ranged from 0.99 to 594.10 times per day and decreased significantly with age (p < 0.001). Daily CI use and frequency of coil-offs did not vary significantly across known etiologies. Listening environments of all children typically ranged between 50 and 70 dBA. Children of all ages were exposed to speech in noisy environments. Environment classified as "music" was identified more often in younger children.
CONCLUSIONS: The majority of children use their CIs consistently, even during the first year of implantation. The frequency of coil-offs is a practical challenge in infants and young children, and demonstrates the need for improved coil retention methods for pediatric use. Longer hearing experience and shorter coil-off time facilitates consistent CI use. Children are listening to speech in noisy environments most often, thereby indicating a need for better access to binaural cues, signal processing, and stimulation strategies to aid listening. Study findings could be useful in parent counseling of young and/or new CI users.
PMID: 27885978 [PubMed - in process]
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Preference to Patient-Centeredness in Undergraduate Audiology Students in Portugal.
Preference to Patient-Centeredness in Undergraduate Audiology Students in Portugal.
J Am Acad Audiol. 2016 Nov/Dec;27(10):816-823
Authors: Manchaiah V, Tomé D, Dockens AL, Harn M, Ganesan P
Abstract
BACKGROUND: In health care, the model of patient-centered care is growing; and improved outcomes have been linked to patient-centeredness. Practicing audiologists have been found to strongly prefer a patient-centered approach as years in practice increase. It is unknown whether patient-centeredness begins during education and training.
PURPOSE: The current study was aimed at understanding the preference to patient-centeredness in undergraduate audiology students in Portugal.
RESEARCH DESIGN: The study used a cross-sectional survey design.
STUDY SAMPLE: One hundred and thirty-seven undergraduate audiology students completed patient-practitioner orientation scale (PPOS) and provided some demographic details.
DATA COLLECTION AND ANALYSIS: The data were analyzed using one-way analysis of variance and one-sample t tests.
RESULTS: A significant difference was found for sharing subscale (p ≤ 0.001), caring subscale (p = 0.033), and the PPOS full scale (p ≤ 0.001) among different undergraduate groups. Further, post hoc tests showed that the difference between year 1 and with years 2, 3, and 4 were significant for sharing subscale and PPOS full scale, but not for caring subscale. No significant differences were observed among the years 2, 3, and 4 for sharing subscale, caring subscale, and for PPOS full scale. When compared audiologists' preferences from a previous study on audiologists with students' preferences in the current study, significant difference for both subscales and full scale was found between year 1 students and audiologists (p ≤ 0.001), with higher preference to patient-centeredness was reported by qualified audiologists. Also, significant difference was found between audiologists and overall undergraduate group for caring subscale (p = 0.001).
CONCLUSIONS: The current study suggests that audiology education influences preference to patient-centeredness. Within a year of undergraduate coursework, students tend to develop high preference to patient-centeredness, which stays stable during four years of undergraduate studies. These results provide useful insights to audiology education and training, particularly in the context of audiological rehabilitation.
PMID: 27885977 [PubMed - in process]
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Negative Effect of Acoustic Panels on Listening Effort in a Classroom Environment.
Negative Effect of Acoustic Panels on Listening Effort in a Classroom Environment.
J Am Acad Audiol. 2016 Nov/Dec;27(10):805-815
Authors: Amlani AM, Russo TA
Abstract
BACKGROUND: Acoustic panels are used to lessen the pervasive effects of noise and reverberation on speech understanding in a classroom environment. These panels, however, predominately absorb high-frequency energy important to speech understanding. Therefore, a classroom environment treated with acoustic panels might negatively influence the transmission of the target signal, resulting in an increase in listening effort exerted by the listener.
PURPOSE: Acoustic panels were installed in a public school environment that did not meet the ANSI-recommended guidelines for classroom design. We assessed the modifications to the acoustic climate by quantifying the effect of (1) acoustic panel (i.e., without, with) on the transmission of a standardized target signal at different seat positions (i.e., A-D) using the Speech Transmission Index (STI) and (2) acoustic panel and seat position on listening-effort performance in a group of third-grade students having normal-hearing sensitivity using a dual-task paradigm.
RESEARCH DESIGN: STI measurements are described qualitatively. We used a repeated-measures randomized design to assess listening-effort performance of monosyllabic words in a primary task and digit recall in a secondary task for the independent variables of acoustic panel and seat position.
STUDY SAMPLE: Twenty-seven, third-grade students (12 males, 15 females), ranging in age from 8.3 to 9.4 yr (mean = 8.7 yr, standard deviation = 0.7), participated in this study.
DATA COLLECTION AND ANALYSIS: Qualitatively, we performed STI measurements under both testing conditions (i.e., panel and seat location). For the primary task of the dual-task paradigm, participants heard a ten-item list of monosyllabic words (i.e., ten words per list) recorded through a manikin in the classroom environment without and with acoustic panels and at different seat positions. Participants were asked to repeat each word exactly as it was heard. During the secondary task, participants were shown a single, random string of five digits before the presentation of the monosyllabic words. After each list in the primary task was completed, participants were asked to recall the string of five digits verbatim.
RESULTS: Word-recognition and digit-recall performance decreased with the presence of acoustic panels and as the distance from the target signal to a given seat location increased. The results were validated using the STI, as indicated by a decrease in the transmission of the target signal in the presence of acoustic panel and as the distance to a given seat location increased.
CONCLUSIONS: The inclusion of acoustic panels reduced the negative effects of noise and reverberation in a classroom environment, resulting in an acoustic climate that complied with the ANSI-recommended guidelines for classroom design. Results, however, revealed that participants required an increased amount of mental effort when the classroom was modified with acoustic treatment compared to no acoustic treatment. Independent of acoustic treatment, mental effort was greatest at seat locations beyond the critical distance (CD). With the addition of acoustic panels, mental effort was found to increase significantly at seat locations beyond the CD compared to the unmodified room condition. Overall, results indicate that increasing the distance between the teacher and child has a detrimental impact on mental effort and, ultimately, academic performance.
PMID: 27885976 [PubMed - in process]
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Hearing Benefit and Rated Satisfaction in Children with Unilateral Conductive Hearing Loss Using a Transcutaneous Magnetic-Coupled Bone-Conduction Hearing Aid.
Hearing Benefit and Rated Satisfaction in Children with Unilateral Conductive Hearing Loss Using a Transcutaneous Magnetic-Coupled Bone-Conduction Hearing Aid.
J Am Acad Audiol. 2016 Nov/Dec;27(10):790-804
Authors: Polonenko MJ, Carinci L, Gordon KA, Papsin BC, Cushing SL
Abstract
BACKGROUND: Bilateral hearing is important for learning, development, and function in complex everyday environments. Children with conductive and mixed hearing loss (HL) have been treated for years with percutaneous coupling through an abutment, which achieves powerful output, but the implant site is susceptible to skin reactions and trauma. To overcome these complications, transcutaneous magnetic coupling systems were recently introduced.
PURPOSE: The purpose of the study was to evaluate whether the new transcutaneous magnetic coupling is an effective coupling paradigm for bone-conduction hearing aids (BCHAs). We hypothesized that magnetic coupling will (1) have limited adverse events, (2) provide adequate functional gain, (3) improve spatial hearing and aid listening in everyday situations, and (4) provide satisfactory outcomes to children and their families given one normal hearing ear.
RESEARCH DESIGN: Retrospective analysis of audiological outcomes in a tertiary academic pediatric hospital.
STUDY SAMPLE: Nine children aged 5-17 yr with permanent unilateral conductive HL (UCHL) or mixed HL were implanted with a transcutaneous magnet-retained BCHA. Average hearing thresholds of the better and implanted ears were 12.3 ± 11.5 dB HL and 69.1 ± 11.6 dB HL, respectively, with a 59.4 ± 4.8 dB (mean ± standard deviation) conductive component.
DATA COLLECTION AND ANALYSIS: Data were extracted from audiology charts of the children with permanent UCHL or mixed HL who qualified for a surgically retained BCHA and agreed to the magnetic coupling. Outcomes were collected from the 3- to 9-mo follow-up appointments, and included surgical complications, aided audiometric thresholds with varying magnet strength, speech performance in quiet and noise, and patient-rated benefit and satisfaction using questionnaires. Repeated measures analysis of variance was used to analyze audiometric outcomes, and nonparametric tests were used to evaluate rated benefit and satisfaction.
RESULTS: All nine children tolerated the device and only one child had discomfort at the wound site. Similar access to sound was achieved regardless of magnet strength. Speech performance did not significantly improve in quiet or noise conditions with +10 and +5 dB signal-to-noise ratio. Children benefited from spatially separating the noise from the speech signal, regardless of whether the noise was directed to the implanted or better ear. When wearing the BCHA, the children reported satisfaction and significant implant benefit, particularly in background noise, but at the expense of increased aversiveness to sound.
CONCLUSIONS: Our findings, therefore, indicate that providing a transcutaneous magnetic-coupled BCHA to children who have UCHL or mixed HL provides benefit on some objective measures of bilateral hearing, as well as some subjective benefit in noise and everyday situations.
PMID: 27885975 [PubMed - in process]
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The Academy Research Grants in Hearing and Balance.
The Academy Research Grants in Hearing and Balance.
J Am Acad Audiol. 2016 Nov/Dec;27(10):788-789
Authors: Shinn J, McCaslin D
PMID: 27885974 [PubMed - in process]
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Development of an auditory situation awareness test battery for advanced hearing protectors and TCAPS: detection subtest of DRILCOM (detection-recognition/identification-localization-communication).
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Related Articles |
Development of an auditory situation awareness test battery for advanced hearing protectors and TCAPS: detection subtest of DRILCOM (detection-recognition/identification-localization-communication).
Int J Audiol. 2016 Dec 01;:1-12
Authors: Lee K, Casali JG
Abstract
OBJECTIVE: To design a test battery and conduct a proof-of-concept experiment of a test method that can be used to measure the detection performance afforded by military advanced hearing protection devices (HPDs) and tactical communication and protective systems (TCAPS).
DESIGN: The detection test was conducted with each of the four loudspeakers located at front, right, rear and left of the participant. Participants wore 2 in-ear-type TCAPS, 1 earmuff-type TCAPS, a passive Combat Arms Earplug in its "open" or pass-through setting and an EB-15LE™ electronic earplug. Devices with electronic gain systems were tested under two gain settings: "unity" and "max". Testing without any device (open ear) was conducted as a control.
STUDY SAMPLE: Ten participants with audiometric requirements of 25 dBHL or better at 500, 1000, 2000, 4000, 8000 Hz in both ears.
RESULTS: Detection task performance varied with different signals and speaker locations. The test identified performance differences among certain TCAPS and protectors, and the open ear.
CONCLUSIONS: A computer-controlled detection subtest of the Detection-Recognition/Identification-Localisation-Communication (DRILCOM) test battery was designed and implemented. Tested in a proof-of-concept experiment, it showed statistically-significant sensitivity to device differences in detection effects with the small sample of participants (10). This result has important implications for selection and deployment of TCAPS and HPDs on soldiers and workers in dynamic situations.
PMID: 27905220 [PubMed - as supplied by publisher]
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