A5035154641- Hearing, Cochlea, Tinnitus, Genetics
- Ear Surgery and Otitis Media
- Hearing Loss and Rehabilitation
- Vestibular and auditory disorders
- Facial Nerve Paralysis Treatment and Research
- Hearing Impairment and Communication
- Tracheal and airway disorders
- Ear and Head Tumors
- Glaucoma and retinal disorders
- Meningioma and schwannoma management
- Cerebral Venous Sinus Thrombosis
- Congenital Ear and Nasal Anomalies
- Ophthalmology and Eye Disorders
- Noise Effects and Management
- Sinusitis and nasal conditions
- Trigeminal Neuralgia and Treatments
- Tactile and Sensory Interactions
- Head and Neck Surgical Oncology
- Respiratory and Cough-Related Research
- Voice and Speech Disorders
- Speech and Audio Processing
- Retinoids in leukemia and cellular processes
- Neuroscience of respiration and sleep
- Head and Neck Anomalies
- Infectious Diseases and Tuberculosis
Asan Medical Center
2016-2025
University of Ulsan
2016-2025
Ulsan College
2016-2025
Johns Hopkins Medicine
2011-2013
Johns Hopkins University
2011-2013
Andong National University
2008
Seoul Medical Center
2004
Abstract Objective: To evaluate the therapeutic efficacy of intratympanic dexamethasone (ITD) injections added to systemic steroids in patients with idiopathic sudden sensorineural hearing loss (HL). Materials and Methods: A total 120 diagnosed HL were treated ITD (0.3 mL on days 1, 3, 5) plus 48 mg methylprednisolone (ITD group) or alone (control group). Results: The recovery rate after treatment was 73.3% group 70.0% control group. Although improvements pure‐tone average same two groups,...
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...
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...
Gadolinium-enhanced magnetic resonance imaging (MRI) is the gold standard for diagnosing vestibular schwannoma (VS). This study aimed to compare incidence of VS among patients with low-frequency, high-frequency, and flat-type sudden sensorineural hearing loss (SSNHL) assess effectiveness MRI each SSNHL type. We analyzed 755 diagnosed at a single tertiary center between January 2014 March 2020. All underwent temporal bone MRI. Logistic regression was used determine associations types VS....
Objective To compare pure‐tone audiometry and auditory steady state response (ASSR) to measure hearing loss based on the severity of in frequencies. Study Design Setting A total 105 subjects (168 ears, 64 male 41 female) were enrolled this study. We determined level by measurement ASSR same day for each subject. Results Pure‐tone highly correlated (r = 0.96). The relationship is described equation PTA 1.05 × mean − 7.6. When analyzed according frequencies, correlation coefficients 0.94,...
Objectives We investigated changes in video head impulse test (vHIT) gains and corrective saccades (CSs) at the acute follow-up stages of vestibular neuritis to assess diagnostic value vHIT. Study Design Case series with chart review. Setting Tertiary medical center. Subjects Methods Sixty-three patients who underwent vHIT an initial presentation approximately 1-month were included. gains, gain asymmetry (GA), peak velocities CS, interaural difference CS (CSD) analyzed. Results Mean...
The vestibular system detects motion of the head in space and turn generates reflexes that are vital for our daily activities. eye movements produced by vestibulo-ocular reflex (VOR) play an essential role stabilizing visual axis (gaze), while vestibulo-spinal ensure maintenance body posture. neuronal pathways from periphery to cervical spinal cord potentially serve a dual role, since they function stabilize relative inertial could thus contribute gaze (eye-in-head + head-in-space) posture...
Conclusion. Intratympanic dexamethasone (ITD) within 1 month after initial treatment failure should be utilized as salvage for refractory sudden sensorineural hearing loss (SSNHL). Objective. To investigate the therapeutic efficacy over time of ITD in SSNHL. Materials and methods. We retrospectively reviewed medical records audiograms 99 SSNHL patients who were to 2 weeks oral steroid treatment, from August 2003 October 2006. Patients divided into those receiving no further (control group)...
Objective: To analyze clinical manifestations and prognosis of bilateral simultaneous facial nerve palsy (BS-FNP). Study Design: Retrospective case review with current follow-up wherever possible. Setting: Tertiary referral centers. Patients: Patients (n = 7; 4 women 3 men; mean age, 37 yr; range, 18-58 yr) diagnosed BS-FNP at the time their first visit. Intervention: Therapy systemic corticosteroids antiviral agents outpatient for 1 month to years after discharge. Main Outcome Measure:...
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...
Objective To verify that tinnitus itself could disturb speech perception and to evaluate the effects of masking noise on ability in patients with normal hearing but unilateral chronic using test. Study Design Prospective, nonrandomized study. Materials Methods Between June 2009 May 2011, we enrolled 20 subjective had persisted for more than 12 months, along healthy controls same age. All subjects were evaluated audiologic examinations, handicap inventory, Korean version Hearing Noise Test...
The increased cochlear signal on FLAIR images in patients with acoustic neuroma is explained by an concentration of protein the perilymphatic space. However, there still debate whether a correlation between and degree hearing disturbance neuroma. Our aim was to investigate clinical significance 3D according extent large patient cohort.This retrospective study enrolled 102 neuroma, who were divided into 2 groups based tumor location; 22 tumors confined internal auditory canal 80 extended...
<h3>BACKGROUND AND PURPOSE:</h3> According to recent research, modern MR imaging can detect the presense of abnormalities on labyrinthine. Our aim was report patterns and prognostic role abnormal findings labyrinthine in patients with sudden sensorineural hearing loss. <h3>MATERIALS METHODS:</h3> This study comprised 113 who were diagnosed unilateral loss underwent 3T imaging, including pre-/postcontrast 3D fluid-attenuated inversion recovery T1-weighted imaging. We analyzed correlated them...
<h3>BACKGROUND AND PURPOSE:</h3> Current MRI with the CE T1-weighted sequence plays a limited role in evaluation of facial neuritis due to prominent normal nerve enhancement. Our purpose was retrospectively investigate usefulness 3D-FLAIR compared 3D-T1-FFE patients. <h3>MATERIALS METHODS:</h3> We assessed 36 consecutive patients who underwent temporal bone MR imaging at 3T for idiopathic palsy. Two readers independently reviewed and images determine degree enhancement each 5 segments nerve....
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....
We suggest that 1/0.5 kHz FPA would be clinically useful in the diagnosis of Ménière's disease.To determine whether VEMP parameters could identified using different tone burst stimuli for disease.The group included 24 affected ears from definite disease and 26 probable disease. The control 20 normal ears. Using bursts 0.5 1 kHz, two were examined: 1) frequency peak amplitude ratio (1/0.5 FPA), where was determined by difference between p13 n23 ipsilaterally; 2) interaural (IAD) ratio,...