A5070363692- Ear Surgery and Otitis Media
- Hearing, Cochlea, Tinnitus, Genetics
- Hearing Loss and Rehabilitation
- Vestibular and auditory disorders
- Tracheal and airway disorders
- Ear and Head Tumors
- Hearing Impairment and Communication
- Congenital Ear and Nasal Anomalies
- Reconstructive Facial Surgery Techniques
- Cerebral Venous Sinus Thrombosis
- Nasal Surgery and Airway Studies
- Meningioma and schwannoma management
- Speech and Audio Processing
- Head and Neck Anomalies
- Sinusitis and nasal conditions
- Glaucoma and retinal disorders
- Facial Nerve Paralysis Treatment and Research
- Multisensory perception and integration
- Salivary Gland Tumors Diagnosis and Treatment
- Noise Effects and Management
- Cleft Lip and Palate Research
- Acoustic Wave Phenomena Research
- Otitis Media and Relapsing Polychondritis
- Coding theory and cryptography
- Neurofibromatosis and Schwannoma Cases
Asan Medical Center
2016-2025
University of Ulsan
2016-2025
Ulsan College
2016-2025
Changwon National University
2023
Gyeongsang National University
2023
Harvard University
2013-2016
Massachusetts Eye and Ear Infirmary
2013-2016
BioVinc (United States)
2016
University of Southern California
2016
National Institutes of Health
2016
Vestibular migraine (VM) is one of the most common causes episodic vertigo. We reviewed results multiple vestibular function tests in a cohort VM patients who were diagnosed with according to diagnostic criteria Barany Society and International Headache assessed efficacy each for predicting prognosis patients. A retrospective chart analysis was performed on 81 at tertiary care center from June 2014 July 2015. Patients by video head impulse test (vHIT), caloric test, vestibular-evoked...
We fabricated a micropump for reciprocating, zero-net-volume intracochlear drug delivery.
Abstract Given our aging society and the prevalence of age-related hearing loss that often develops during adulthood, is a common public health issue affecting almost all older adults. Moderate-to-moderately severe can usually be corrected with aids; however, severe-to-profound requires cochlear implant (CI). However, post-operative CI results vary, performance previous prediction models limited, indicating new approach needed. For postlingually deaf adults (n de120) who received full...
This study aimed to investigate prognostic factors in patients with idiopathic sudden sensorineural hearing loss (ISSNHL).From January 2007 December 2011, a retrospective chart review identified 494 consecutive ISSNHL. Demographic, audiometric, and clinical data were analyzed using logistic regression test.Hearing recovery from ISSNHL was significantly associated such as age, duration onset of symptoms commencement treatment, severity the initial pure tone threshold, treatment method....
Coronavirus disease 2019 (COVID-19) changed the practice of medicine, and various anti-contagion restrictions were implemented worldwide. This study aimed to evaluate annual trend in incidence otologic diseases during COVID-19 pandemic determine influence social on these diseases. We retrospectively reviewed number patients treated for diseases, particularly those associated with infectious pathophysiology, total otolaryngology departments at three tertiary referral centers South Korea. The...
Balloon eustachian tuboplasty (BET) is an emerging treatment for dilatory tube (ET) dysfunction. However, its efficacy in patients with both chronic suppurative otitis media (COM) and ET dysfunction remains unclear. The objective of the trial was to assess safety BET versus medical management (MM) alone adult COM dysfunction, which defined by a failed Valsalva maneuver. In this prospective, multicenter, randomized controlled trial, total 116 participants (121 ears) treated between January...
To investigate postoperative outcomes after cochlear implantation in young children with nerve deficiency and compare the results those of patients normal nerve.Historical cohort study.Tertiary referral center.Six under age 36 months deficiency, as determined by magnetic resonance imaging (MRI), received between July 2006 March 2008. Fifteen implanted ear underwent during same period were selected control group. Medical records, studies, speech evaluations reviewed.Our study group scored...
From this study, we suggest that male gender and complete type of cleft palate contribute to the recurrence otitis media with effusion (OME) in patients palate.It is well known children have a high prevalence OME due anatomic dysfunction eustachian tube. Our goal was determine clinical manifestations risk factors for who received additional ventilating tube insertions after initial insertion during palatoplasty.We retrospectively reviewed medical operation records 213 palatoplasty from...
We aimed to compare clinical outcomes including hearing improvement and cholesteatoma recurrence between endoscopic conventional microscopic surgeries in patients with attic cholesteatoma.We collected data from who were treated using (10 patients) approaches by a single surgeon. The retrospectively reviewed for patient characteristics, intraoperative findings, levels, follow-up status. Recurrence of the cholesteatoma, hearing, operation time evaluated.Ossiculoplasty was performed four group...
Objective: Three-dimensional fluid-attenuated inversion recovery (3D-FLAIR) magnetic resonance imaging (MRI) has recently been applied to the inner ear, but relationship between 3D-FLAIR findings and audiovestibular function unclear in patients with sudden sensorineural hearing loss (SSNHL). We therefore used MRI investigate vestibular lesions SSNHL determined correlation these radiologic results of tests. Study Design: Prospective study. Methods: enrolled 35 who presented from 2008 2009....
Transcanal endoscopic ear surgery (TEES) provides minimally invasive transcanal access to the middle and improves visibility during cholesteatoma resection. However, literature on outcomes following TEES alone for removal of congenital (CC) is lacking limited small series.
To assess the normative size of cochlear nerve (CN) and facial (FN) in normal-hearing ears to determine whether varies with age.Cross-sectional.We included 169 normal hearing between 2005 2010. The height, width, cross-sectional area (CSA) CN FN middle internal auditory canal were measured on oblique sagittal images 3.0-T magnetic resonance imaging. Results compared by age. Young subjects divided into three age groups, 0-5, 6-10, 11-15 years. Subjects over 40 years groups at 10-year...
Drug delivered to the oval window can diffuse apex of human cochlea.We have previously demonstrated that zoledronate, a nitrogen-containing bisphosphonate, arrest sensorineural hearing loss in cochlear otosclerosis. We also shown that, animals, delivery bisphosphonate into cochlea dramatically increase efficiency. Intracochlear drug has potential local concentration while decreasing risk systemic toxicity. In present study, fluorescently labeled compound (6-FAM-ZOL) was introduced through...
Hypothesis Local delivery of bisphosphonates results in superior localization these compounds for the treatment cochlear otosclerosis, without ototoxicity. Background Otosclerosis is a common disorder abnormal bone remodeling within human otic capsule. It frequent cause conductive hearing loss from stapes fixation. Large lesions that penetrate endosteum and injure spiral ligament result sensorineural loss. Nitrogen-containing (e.g., zoledronate) are potent inhibitors with proven efficacy...
To compare audiologic performances of cochlear implantation (CI) in children with X-linked deafness those CI age- and sex-matched normal cochleae.We identified 4 patients selected 10 deaf cochleae between April 1999 2012.Auditory brainstem responses, Categories Auditory Performance (CAP), Meaningful Integration Scale (MAIS).The ages at the time ranged 1.3 13.6 years, a mean age 5.3 years. All were male subjects showed severe-to-profound hearing loss. Patient 1 lacked ABR both ears. Patients...
Candida auris was first identified in Japan from specimens obtained the ear, but most reports since have reported invasive infections or non-ear based cases. We reviewed all microbiology records a single center South Korea February 2016 to July 2018. One hundred eleven isolates were positive for C. 79 patients. All patients had ear discharge samples. one of with been otorhinolaryngology clinic. Symptom-driven culture done patient, whose performed surveillance. Ear discharges mostly purulent...
Abstract Long‐term hearing loss in postlingually deaf (PD) adults may lead to brain structural changes that affect the outcomes of cochlear implantation. We studied 94 PD patients who underwent implantation and 37 were MRI‐scanned within 2 weeks after onset sudden expected with minimal relation deafness. Compared those loss, we found lower gray matter (GM) probabilities bilateral thalami, superior, middle, inferior temporal cortices as well central cortical regions corresponding movement...
Abstract Various preclinical studies with developed Eustachian tube (ET) stents are in progress but have not yet been clinically applied. ET stent is limited by stent-induced tissue hyperplasia studies. The effectiveness of sirolimus-eluting cobalt–chrome alloy (SES) suppressing after placement the porcine model was investigated. Six pigs were divided into two groups (i.e., control and SES groups) three for each group. group received an uncoated ( n = 6), a 6). All sacrificed 4 weeks...
Bilateral cochlear implants (CI) are the standard treatment for bilaterally deaf children, but it is unclear how much second CI can be delayed in sequential bilateral CI. We investigated performances of to answer this question.Retrospective case series review.Tertiary referral center.We studied a cohort congenitally children (n = 73) who underwent without any inner ear anomaly or combined disabilities. Hearing threshold levels and speech perception were evaluated by aided pure tone...
Sudden sensorineural hearing loss is an emergent disease in otologic field.Because the etiology and pathological mechanism were not proven yet, treatment protocol was established.Therefore, medications, duration, dosage different from each institute.In this review, authors collected analyzed articles on sudden published during recent 11 years.From those, we described recommendations criteria method of diagnosis, tools for their results, guideline reporting results follow up.
Background: The potential etiology of idiopathic sudden sensorineural hearing loss (ISSNHL) is cochlear ischemia, therefore, hyperbaric oxygen (HBO) therapy a promising treatment, particularly in patients with severe (≥70 dB).Aims/objectives: To evaluate the efficacy HBO therapy.Material and methods: medical records diagnosed ISSNHL were retrospectively reviewed dB). Patients received 14 times addition to systemic intratympanic steroid (HBO group), or only (control group).Results: Data from...