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Journal of Audiology & Otology

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https://www.readbyqxmd.com/read/29890818/pole-zero-fitting-for-transfer-function-of-hearing-aid-receiver-evidence-based-review
#1
Woojae Han, Noori Kim
The hearing-aid transducer is ubiquitous in the hearing-aid industry. For example, the balanced armature receiver (BAR), first invented by A.G. Bell, has been used in all telephone earphones because it has the highest output and best frequency response. Nevertheless, previous electro-mechanical studies on these miniature speakers are quite primitive, given the price of the transducers. Thus, more detailed analysis is critically important for the field of hearing science. This review study was motivated by Hunt's parameter calibration (1954), a widely used commercial hearing-aid receiver (ED series, manufactured by Knowles Electronics, Inc...
June 14, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29890817/nonshaved-ear-surgery-effect-of-hair-on-surgical-site-infection-of-the-middle-ear-mastoid-surgery-and-patients-preference-for-the-hair-removal
#2
Dong-Hee Lee, Soonil Yoo, Eunhye Shin, Yesun Cho
Background and Objectives: This study aimed 1) to compare the rates of surgical site infection (SSI) between two groups with and without preoperative hair shaving, 2) to compare the bacterial colonization just before the skin incision between them, and 3) to evaluate people's preference for the hair shaving. Subjects and Methods: The retrospective study enrolled cases in which middle ear and mastoid surgery was performed with as well as without hair removal. Main measurement outcomes were the SSI rate within 3 months following the surgery, bacterial culture results obtained from the incision area just before the skin incision, and questionnaire to evaluate the preference for hair shaving from patients with chronic suppurative otitis media but without experience with the ear surgery...
June 14, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29890816/pedigree-analysis-and-audiological-investigations-of-otosclerosis-an-extended-family-based-study
#3
Santhanam Rekha, Ravi Ramalingam, Madasamy Parani
Background and Objectives: To analyse the audiometric profile and the pedigree of a large family with otosclerosis to understand the inheritance pattern and its implication in clinical management of the disease. Subjects and Methods: Pedigree analysis was performed on the basis of family history and audiometric tests. Pure tone audiometry, tympanometry, and acoustic reflexes were evaluated for the family members. Audiometric analysis was also carried out for the individuals who have already underwent corrective surgery at the time of study...
June 14, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29890815/pyoderma-gangrenosum-of-the-preauricular-area-with-ulcerative-colitis-a-case-report-and-review
#4
Hee Sung Chae, Sung Min Han, Ha Neul Lee, Hyun Jong Jeon, Young Joon Seo
Pyoderma gangrenosum (PG) is primarily, a sterile, inflammatory, neutrophilic dermatosis, characterized by recurrent cutaneous ulceration with mucopurulent or hemorrhagic exudate. The incidence of PG is uncertain, but it is estimated to be about 3-10 patients per million per year. It occurs most commonly on the lower legs, but has been reported at other sites of the body as well. The causes of PG are unknown, but about 50-70% of cases are associated with other diseases, mainly inflammatory bowel disease. We hereby report a case of PG in a 21-year-old male, with a history of ulcerative colitis (UC)...
June 14, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29719950/effects-of-age-on-speech-in-noise-identification-subjective-ratings-of-hearing-difficulties-and-encoding-of-fundamental-frequency-in-older-adults
#5
Atta Heidari, Abdollah Moossavi, Fariba Yadegari, Enayatollah Bakhshi, Mohsen Ahadi
Background and Objectives: Numerous studies have indicated deterioration of speech perception in noisy conditions among the elderly even those with normal hearing capabilities. The aim of this study was to investigate the effects of age on the speech-in-noise identification by speech-in-noise (SIN) test, subjective ratings of hearing difficulties by speech, spatial, and qualities of hearing scale (SSQ) questionnaire and encoding of fundamental frequency (F0) by Speech auditory brainstem response (ABR) in the elderly and comparing the results with young people...
May 4, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29719948/a-case-of-contrast-enhanced-cystic-mass-of-external-ear-canal-diagnosed-as-engorged-hard-tick
#6
Min Young Lee, Jae Yun Jung
A 58-year-old female complained earfullness and otalgia and came to the clinic. Dark gray colored cystic mass obstructing the left ear canal was observed during the endoscopic exam. Contrast enhanced CT image showed an oval shape soft tissue lesion in the mid part of the external auditory canal with a homogenous increased contrast uptake. The mass was removed under microscopic view at outpatient clinic. While dissecting the mass in the ear canal, a pod like structure was visualized. The external organism was densely adherent to the skin and turned out to be an engorged hard tick...
May 4, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29719947/trans-tympanic-cartilage-chip-insertion-for-intractable-patulous-eustachian-tube
#7
Junhui Jeong, Jaesung Nam, Su-Jin Han, Seung Ho Shin, Kyurin Hwang, In Seok Moon
Background and Objectives: Patulous Eustachian tube (PET) causes troublesome autophony. We treated PET using tragal cartilage chip insertion to fill in the concavity within the tubal valve and evaluated the feasibility of this method. Subjects and Methods: This study used a prospective design. Eleven patients with PET disorder were included. Tragal cartilage chip insertion via a transcanal approach into the Eustachian tube (ET) was performed in 14 ears of those patients...
May 4, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29719949/knowledge-and-perceptions-of-teleaudiology-among-audiologists-a-systematic-review
#8
Rohit Ravi, Dhanshree R Gunjawate, Krishna Yerraguntla, Carlie Driscoll
Background and Objectives: The knowledge and perception of teleaudiology among audiologists will determine the acceptance and success of teleaudiology practice. This systematic review was conducted to review the published literature on knowledge and perceptions of teleaudiology application among audiologists. Materials and Methods: Five studies exploring knowledge and perceptions of teleaudiology application among audiologists published in the English language up to May 2017 were included...
May 3, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29656636/brainstem-correlates-of-comodulation-masking-release-for-speech-in-normal-hearing-adults
#9
Soheila Rostami, Abdollah Moossavi, Mohsen Ahadi, Shohreh Jalaei
Background and Objectives: Weak signals embedded in fluctuating masker can be perceived more efficiently than similar signals embedded in unmodulated masker. This release from masking is known as comodulation masking release (CMR). In this paper, we investigate, neural correlates of CMR in the human auditory brainstem. Subjects and Methods: A total of 26 normal hearing subjects aged 18-30 years participated in this study. First, the impact of CMR was quantified by a behavioral experiment...
April 17, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29656635/clinical-characteristics-of-dizziness-associated-with-acute-peripheral-facial-palsy
#10
Kudamo Song, Sehun Chang, Jun Lee, Sun Ae Shin, Ho Yun Lee
Background and Objectives: We aimed to assess the clinical significance of dizziness associated with acute peripheral facial palsy (APFP). Subjects and Methods: Medical records of patients who visited an otorhinolaryngology clinic at a university hospital and were admitted for treatment of APFP between 2014 and 2016 were thoroughly reviewed. Results: In total, 15.3% (n=15) of patients had dizziness. Continuous, rotatory dizziness without exacerbating factors was most common and frequently accompanied by nausea/vomiting...
April 17, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29656634/a-case-of-bilateral-external-auditory-canal-pyogenic-granuloma-in-a-pregnant-woman
#11
Kudamo Song, Jun Lee, Mee Ja Park, Ho Yun Lee
A pyogenic granuloma is one of the most common benign tumors in the head and neck. However, it rarely occurs in the external auditory canal (EAC). We report a case of a pyogenic granuloma that involved the both EAC in a pregnant woman. The clinical manifestation is discussed with a literature review.
April 17, 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29471613/examination-of-previously-published-data-to-identify-patterns-in-the-social-representation-of-hearing-aids-across-countries
#12
Vinaya Manchaiah, Pierre Ratinaud, Aristotle Tympas, Berth Danermark, Per Germundsson
BACKGROUND AND OBJECTIVES: Societal factors seem to exercise a strong influence on hearing aid uptake, use, and satisfaction. In particular, knowledge, perception, and attitude of people will have bearing towards their and others health behavior and decisions. The current study aimed at understanding the perception of hearing aids by adults belonging to the general population in different countries. SUBJECTS AND METHODS: The study employed a crosssectional design...
April 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29471611/update-on-bone-conduction-auditory-brainstem-responses-a-review
#13
REVIEW
Young Joon Seo, Chanbeom Kwak, Saea Kim, Yoon Ah Park, Kyoung Ho Park, Woojae Han
Auditory brainstem responses (ABR) have been used as a powerful and the most common objective tool to evaluate hearing sensitivity and to diagnose the types of hearing loss and neurological disorders, through the auditory peripheral pathway to a central level of the brainstem, since 1971. Although bone-conduction (BC) ABR could be an alternative to air-conduction (AC) ABR, as the former overcomes some limitations of the latter, the majority of clinicians rarely utilize it due to a lack of knowledge and no routine test administration...
April 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29471610/ototoxicity-a-challenge-in-diagnosis-and-treatment
#14
REVIEW
Purushothaman Ganesan, Jason Schmiedge, Vinaya Manchaiah, Simham Swapna, Subhashini Dhandayutham, Purushothaman Pavanjur Kothandaraman
Ototoxicity is the pharmacological adverse reaction affecting the inner ear or auditory nerve, characterized by cochlear or vestibular dysfunction. The panorama of drug-induced hearing loss has widened over last few decades. Although ototoxic medications play an imperative role in modern medicine, they have the capacity to cause harm and lead to significant morbidity. Evidence has shown early detection of toxicity through prospective ototoxicity monitoring allows for consideration of treatment modifications to minimize or prevent permanent hearing loss and balance impairment...
April 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29301392/clinical-safety-and-efficacy-of-autologous-bone-marrow-derived-mesenchymal-stem-cell-transplantation-in-sensorineural-hearing-loss-patients
#15
Ho Seok Lee, Woo Jin Kim, Ji Sun Gong, Kyoung Ho Park
Stem cell transplantation represents a promising therapy for several degenerating and necrotic diseases. In several animal studies, we could find hearing restoration after inoculation of the mesenchymal stem cells' as well as mesenchymal stem cells' differentiation of hair cells and spiral ganglion. But until now, no clinical study has been reported directly for the human being. In this pilot studies, we applied mesenchymal stem cells to human beings trans-venously. Although we verified the safety of the autologous bone marrow stem cell transplantation in sensorineural hearing loss patients but we could not achieve significant improvement in hearing...
April 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29301391/locacorten-vioform-ototoxicity-upon-guinea-pig-middle-ear-application
#16
Owen Woods, Issam Saliba
BACKGROUND AND OBJECTIVES: Locacorten Vioform (Novartis UK) is frequently prescribed for otomycosis. Its component, Clioquinol, also has anti-bacterial properties. Up to this point, its ototoxic potential has not been evaluated. Our objective aims to evaluate Locacorten Vioform's potential ototoxicity when applied directly to the middle ear cavity. MATERIALS AND METHODS: We performed an experimental prospective animal study in our animal research center with 20 Hartley guinea pigs divided into 2 groups...
April 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29301390/acoustic-features-and-cortical-auditory-evoked-potentials-according-to-emotional-statues-of-u-a-i-vowels
#17
Chunhyeok Kim, Seungwan Lee, Inki Jin, Jinsook Kim
BACKGROUND AND OBJECTIVES: Although Ling 6 sounds are often used in the rehabilitation process, its acoustic features have not been fully analyzed and represented in cortical responses. Current study was aimed to analyze acoustic features according to gender and emotional statuses of core vowels of Ling 6 sounds, /u/, /a/, and /i/. Cortical auditory evoked potentials (CAEPs) were also observed in those vowels. SUBJECTS AND METHODS: Vowel sounds /u/, /a/, and /i/ out of Ling 6 sounds representing low, middle and high frequencies were recorded from normal 20 young adults...
April 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29301389/the-effect-of-primary-levels-and-frequencies-on-the-contralateral-suppression-of-distortion-product-otoacoustic-emission
#18
Natalia Yakunina, Jinsook Kim, Eui-Cheol Nam
BACKGROUND AND OBJECTIVES: Changes in distortion product otoacoustic emission (DPOAE) caused by contralateral suppression (CS) allow the function of the auditory efferent system to be evaluated. Parameters affording maximum CS are preferred in terms of clinical application. Our objective was to evaluate the effects of primary levels and frequencies on DPOAE-mediated CS. SUBJECTS AND METHODS: Sixteen subjects with normal hearing participated. DPOAEs were recorded with and without contralateral acoustic stimulation; we delivered broadband noise of 65 dB SPL at f2 frequencies between 1,000 Hz and 6,727 Hz, at 8 pt/octave...
April 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29036758/comparison-of-single-task-versus-dual-task-for-listening-effort
#19
Chanbeom Kwak, Woojae Han
BACKGROUND AND OBJECTIVES: Depending on the kind of task and/or material, listeners sometimes need to pay attention to understand communication. The present study aimed to estimate a listener's amount of effort needed to understand communication by using recognition score and response time as a function of signal-to-noise ratio (SNR) and to confirm his/ her task dependency for listening effort. SUBJECTS AND METHODS: Forty-eight young adults with normal hearing participated in the study...
April 2018: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29471612/analysis-of-output-levels-of-an-mp3-player-effects-of-earphone-type-music-genre-and-listening-duration
#20
Hyunyong Shim, Seungwan Lee, Miseung Koo, Jinsook Kim
Background and Objectives: To prevent noise induced hearing losses caused by listening to music with personal listening devices for young adults, this study was aimed to measure output levels of an MP3 and to identify preferred listening levels (PLLs) depending on earphone types, music genres, and listening durations. Subjects and Methods: Twenty-two normal hearing young adults (mean=18.82, standard deviation=0.57) participated. Each participant was asked to select his or her most PLLs when listened to Korean ballade or dance music with an earbud or an over-the-ear earphone for 30 or 60 minutes...
February 26, 2018: Journal of Audiology & Otology
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