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Korean Journal of Audiology

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https://www.readbyqxmd.com/read/25566400/a-review-of-assistive-listening-device-and-digital-wireless-technology-for-hearing-instruments
#1
REVIEW
Jin Sook Kim, Chun Hyeok Kim
Assistive listening devices (ALDs) refer to various types of amplification equipment designed to improve the communication of individuals with hard of hearing to enhance the accessibility to speech signal when individual hearing instruments are not sufficient. There are many types of ALDs to overcome a triangle of speech to noise ratio (SNR) problems, noise, distance, and reverberation. ALDs vary in their internal electronic mechanisms ranging from simple hard-wire microphone-amplifier units to more sophisticated broadcasting systems...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558413/a-case-of-labyrinthine-fistula-by-cholesteatoma-mimicking-lateral-canal-benign-paroxysmal-positional-vertigo
#2
Dae Bo Shim, Kyung Min Ko, Mee Hyun Song, Chang Eun Song
Acute peripheral vestibulopathy, of which the chief complaint is positional vertigo, comprises benign paroxysmal positional vertigo (BPPV), labyrinthitis, labyrinthine fistula, and cerebellopontine angle tumors. Since the typical presentation of labyrinthine fistulas may be sensorineural hearing loss, positional vertigo, or disequilibrium, it is often difficult to distinguish from BPPV or Meniere's disease. Herein we report a 61-year-old female patient with typical symptoms and signs attributable to geotropic type variant of the lateral semicircular canal BPPV on the left side, who eventually was confirmed as having a labyrinthine fistula from chronic otitis media with cholesteatoma on the left side...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558412/eccrine-poroma-of-the-auricle-a-case-report
#3
Tae Hoon Kong, Tae Hyoung Ha, Min Seob Eom, Sang Yoo Park
Eccrine poroma is described as a benign neoplasm originating from the intraepidermal eccrine duct of sweat glands. This tumor is known to arise in bare skin areas, but more rarely appeared in head and neck region. A 54-year-old female presented with a mass on the retroauricular aspect of the left auricle. There was a soft, protruding, and purple-colored, solitary mass of about 1.0×1.0 cm in size. After authors performed an excisional biopsy, eccrine poroma was confirmed histopathologically. Thus, we report a rare case of eccrine poroma of the ear with the review of literature...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558411/a-case-of-cochlear-implantation-targeting-preserved-cerebral-cortex-in-severe-traumatic-brain-injury
#4
Eun-Sun Jeon, Sungsu Lee, Hyong-Ho Cho, Yong-Beom Cho
Temporal bone fracture and blunt head trauma was once considered as contraindication for the surgery. Increasing numbers of successful cochlear implantation are being reported. However, the outcome of cochlear implantation in severe damaged brain is unclear. A multichannel cochlear implant was successfully implanted in a 33-year-old man who had both sensorineural deafness, left hemiplegia due to bilateral transverse temporal bone fractures and severe right brain damage after a traffic accident.
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558410/cochlear-implantation-using-a-suprameatal-approach-in-a-case-of-severely-contracted-mastoid-cavity
#5
Ji Eun Choi, Jeon Yeob Jang, Yang-Sun Cho
Although cochlear implantation using posterior tympanotomy has been performed worldwide, other alternative approaches might be more beneficial and convenient in some selected cases. Of these, suprameatal approach was reported to be one of useful options in cases with narrow facial recess, anteriorly located facial nerve and an ossified cochlea. We describe a case of cochlear implantation using the modified suprameatal approach in a severely contracted mastoid cavity and suggest another indication of this approach...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558409/recurrent-benign-myoepithelioma-of-the-auricle
#6
Se-Joon Oh, Soo-Keun Kong, Il-Woo Lee, Eui-Kyung Goh
Myoepithelioma, a generally benign tumor comprised of myoepithlial cells, is an uncommon salivary gland tumor. Myoepithelioma originates primarily in the parotid gland, but several isolated cases have been described. Although myoepithelioma has a benign nature, but there is a potential risk of malignant change and recurrence in case of incomplete resection. We acknowledge that benign myoepithelioma originating from the auricle has not been reported in the English literature. We present a rare case of 27-year-old female who had recurrent benign myoepithelioma originating from the auricle and already had been given twice operations at the other clinic...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558408/transverse-fracture-of-the-stapes-anterior-crus-caused-by-the-blast-pressure-from-a-land-mine-explosion
#7
Seok Min Hong, Jun Ho Lee, Chan Hum Park, Hyung-Jong Kim
Stapes fractures without other ossicle problems are rare and ossicle problems due to explosion pressure are also rare. We describe a very rare case of stapes anterior crural fracture resulting from a land mine explosion. As this case suggests, a close examination of the ossicles is necessary during an exploration tympanotomy.
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558407/association-between-vestibular-function-and-hearing-outcome-in-idiopathic-sudden-sensorineural-hearing-loss
#8
Ho-Seok Lee, Ji-Nam Song, Jung Mee Park, Kyoung Ho Park, Hyun Bum Kim, Jae-Hyun Seo
BACKGROUND AND OBJECTIVES: To investigate whether different vestibular function tests such as cervical vestibular evoked myogenic potential (cVEMP) and caloric test were correlated with severity, pattern and prognosis in idiopathic sudden sensorineural hearing loss (ISSNHL). SUBJECTS AND METHODS: Ninety-two patients with unilateral ISSNHL were subjected to complete audiovestibular evaluation. cVEMP and caloric test results were compared with patients' initial and final audiogram...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558406/benign-paroxysmal-positional-vertigo-with-simultaneous-involvement-of-multiple-semicircular-canals
#9
Dae Bo Shim, Chang Eun Song, Eun Jung Jung, Kyung Min Ko, Jin Woo Park, Mee Hyun Song
BACKGROUND AND OBJECTIVES: Benign paroxysmal positional vertigo (BPPV) generally involves a single semicircular canal (single canal BPPV) but it has been reported that more than one semicircular canal on either the same or the opposite side can be involved in 6.8-20% of the cases (multiple canal BPPV). In this study, the clinical characteristics of multiple canal BPPV were analyzed and compared to those of single canal BPPV. MATERIALS AND METHODS: Retrospective analysis was performed on 1054 consecutive patients diagnosed with BPPV...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558405/the-effects-of-unilateral-tinnitus-on-auditory-temporal-resolution-gaps-in-noise-performance
#10
Yong-Hwi An, So Young Jin, Sang Won Yoon, Hyun Joon Shim
BACKGROUND AND OBJECTIVES: The Gaps-In-Noise (GIN) test is a measure to assess auditory temporal resolution, which is the ability to follow rapid changes in the envelope of a sound stimulus over time. We investigated whether unilateral tinnitus affects temporal resolution by the GIN performance. SUBJECTS AND METHODS: Hearing tests including the GIN test were performed in 120 ears of 60 patients with unilateral tinnitus who showed symmetric hearing within 20 dB HL difference up to 8 kHz (tinnitus-affected ears, 14...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558404/effects-of-ageing-and-hearing-thresholds-on-speech-perception-in-quiet-and-in-noise-perceived-in-different-locations
#11
Siti Zamratol-Mai Sarah Mukari, Nor Haniza Abdul Wahat, Rafidah Mazlan
BACKGROUND AND OBJECTIVES: This study investigated the effect of ageing on speech perception in quiet and in noise, with noise directed from front, right and left. SUBJECTS AND METHODS: Sixty Malay native adults with normal or near normal hearing comprising of 20 young adults (21 to 39 years old), 20 middle aged (40 to 59 years old) and 20 older adults (60 to 74 years old) participated in this study. Their speech perception ability was measured using the Malay Hearing in Noise Test (HINT) in four test conditions; 1) in quiet (HINT Q), 2) with noise from front (HINT NF), 3) with noise from right (HINT NR), and 4) with noise from left (HINT NL)...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25558403/improvement-of-adult-bte-hearing-aid-wearers-front-back-localization-performance-using-digital-pinna-cue-preserving-technologies-an-evidence-based-review
#12
REVIEW
Jingjing Xu, Woojae Han
This systematic review evaluated the impact of using digital pinna-cue preserving technologies (PPT) on front/back sound localization for adult hearing aid users. Two peer-reviewed studies and two non-peer-reviewed studies were included. Lab-based and self-report outcomes were both assessed. The overall findings suggested that PPT was superior to omni-directional and full directional settings in a relatively quiet, well-controlled laboratory environment but not in the real world. However, observed individual differences in self-report measures suggested that PPT was potentially beneficial to certain hearing aid users...
December 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25279233/a-case-of-the-vibrant-soundbridge-stapes-coupler-in-patients-with-mixed-hearing-loss
#13
Ah Young Park, Ju Hyun Jeon, In Seok Moon, Jae Young Choi
The Vibrant Soundbridge (VSB) with stapes clip coupler placement at the stapes head has been used successfully to treat mixed hearing loss. Coupling between the floating mass transducer of the VSB and the stapes head is technically less demanding than incus vibroplasty and is more likely to generate a positive outcome without significantly changing residual hearing or resulting in medical or surgical complications. A 65-year-old man with bilateral mixed hearing loss and chronic otitis media underwent vibroplasty with a stapes clip coupler...
September 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25279232/a-case-of-a-cholesterol-granuloma-occluding-the-external-auditory-canal-in-a-12-year-old-girl
#14
Ji Sun Kong, Mee-Seon Kim, Kyu-Yup Lee
Cholesterol granulomas are benign granulomatous lesions caused by tissue reaction to a foreign body such as cholesterol crystals. These crystals have been are associated with pathological conditions of pneumatized spaces, including those causing inadequate aeration, obstruction of drainage, and hemorrhage in pneumatized spaces, and where materials trapping materials, such as hemosiderin or cholesterol become trapped, and then forming a cholesterol granuloma. Cholesterol granulomas are frequently found in the temporal bones, with the middle ear, mastoid caverna, and petrous apex being the most commonly affected sites...
September 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25279231/congenital-cholesteatoma-localized-to-the-tip-of-the-mastoid-bone-a-case-report-and-possible-etiology
#15
Seok Min Hong, Jun Ho Lee, Chan Hum Park, Hyung-Jong Kim
Congenital cholesteatomas of mastoid origin are extremely rare. We reported one in 2007 and experienced an additional case. A male presented with a 5-month history of right-sided ear discharge. Computed tomography of the temporal bone showed a soft tissue density occupying the mastoid tip. At surgery, the cholesteatoma sac was completely isolated from the mastoid antrum and lateral air cell in the mastoid tip area. We now doubt the rarity of this entity. With a brief literature review, we consider how the cholesteatoma localizes to the tip of the mastoid bone...
September 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25279230/a-case-of-acute-bilateral-retrocochlear-hearing-loss-as-an-initial-symptom-of-unilateral-thalamic-hemorrhage
#16
Min-Joon Park, Sung-Won Yoon, Kang-Hyeon Kim, Young-Jin Kim
A speech discrimination test is a test using a list of 25 phonetically balanced monosyllables. It is often overlooked but significant enough for pure tone audiometry. Many physicians have performed pure tone audiometry but without a speech discrimination test. A 73-year-old woman visited our clinic complaining of sudden bilateral hearing loss. Pure tone audiometry showed only bilateral high frequency loss. However, speech discrimination had decreased markedly. We decided to follow-up after 1 week of Ginexin-F® (ginkgo leaf extract) and Nafril® (nafronyl oxalate)...
September 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25279229/a-case-of-otogenic-brain-abscess-causing-loss-of-consciousness
#17
Min Kyu Kwak, Jae Ho Chung, Seung Hwan Lee, Chul Won Park
Acute or chronic otitis media can cause intracranial complications, one of the most serious being brain abscess. Empirical antibiotic treatment and proper surgical management should be considered to avoid fatal consequences. However, proper extent and optimal timing of surgical intervention are still matters of debate. We present a case of a 31-year-old man who presented with acutely altered mental status, caused by otogenic brain abscess who we treated successfully with antibiotics and otologic surgery and no neurosurgical treatment...
September 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25279228/a-clinical-analysis-of-sudden-sensorineural-hearing-loss-cases
#18
Hyun Soo Lee, You Jae Lee, Bo Sung Kang, Byung Don Lee, Ji Sung Lee
BACKGROUND AND OBJECTIVES: High-dose systemic steroid therapy is the mainstay treatment for sudden sensorineural hearing loss (SSNHL). Recovery rates from SSNHL range are about 47-63% and are influenced by various prognostic factors. To evaluate the prognostic value of specific clinical parameters, we reviewed 289 cases by clinical and statistical analysis. SUBJECTS AND METHODS: This study included 289 patients with SSNHL who visited the Department of Otolaryngology at Soonchunhyang University Hospital from January 2005 to December 2012...
September 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25279227/comparison-of-the-effectiveness-of-monitoring-cisplatin-induced-ototoxicity-with-extended-high-frequency-pure-tone-audiometry-or-distortion-product-otoacoustic-emission
#19
Kwang Kyu Yu, Chi Ho Choi, Yong-Hwi An, Min Young Kwak, Soo Jung Gong, Sang Won Yoon, Hyun Joon Shim
BACKGROUND AND OBJECTIVES: To compare the effectiveness of monitoring cisplatin-induced ototoxicity in adult patients using extended high-frequency pure-tone audiometry (EHF-PTA) or distortion-product otoacoustic emission (DP-OAE) and to evaluate the concurrence of ototoxicity and nephrotoxicity in cisplatin-treated patients. SUBJECTS AND METHODS: EHF-PTA was measured at frequencies of 0.25, 0.5, 1, 2, 3, 4, 6, 8, 9, 11.2, 12.5, 14, 16, 18, and 20 kHz and DP-OAE at frequencies of 0...
September 2014: Korean Journal of Audiology
https://www.readbyqxmd.com/read/25279226/middle-ear-surgery-in-only-hearing-ears-and-postoperative-hearing-rehabilitation
#20
Myung Hoon Yoo, Byung Chul Kang, Hong Ju Park, Tae Hyun Yoon
BACKGROUND AND OBJECTIVES: The aim of this study was to evaluate surgical interventions and hearing rehabilitation in patients with chronic middle ear disease of only hearing ears. SUBJECTS AND METHODS: Thirty-one patients with chronic middle ear disease of only hearing ears were enrolled in this retrospective study. Patients were classified into three groups according to the hearing level: groups A [pure tone audiometry (PTA)<40], B (40≤PTA<70), and C (PTA≥70)...
September 2014: Korean Journal of Audiology
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