A5023522554- Ear Surgery and Otitis Media
- Vestibular and auditory disorders
- Ear and Head Tumors
- Hearing, Cochlea, Tinnitus, Genetics
- Hearing Loss and Rehabilitation
- Reconstructive Facial Surgery Techniques
- Cerebral Venous Sinus Thrombosis
- Nasal Surgery and Airway Studies
- Glaucoma and retinal disorders
- Facial Nerve Paralysis Treatment and Research
- Congenital Ear and Nasal Anomalies
- Meningioma and schwannoma management
- Sinusitis and nasal conditions
- Voice and Speech Disorders
- Ophthalmology and Eye Disorders
- Tracheal and airway disorders
- Neurofibromatosis and Schwannoma Cases
- Head and Neck Surgical Oncology
- Inflammasome and immune disorders
- Optical Coherence Tomography Applications
- Photoacoustic and Ultrasonic Imaging
- Teratomas and Epidermoid Cysts
- Respiratory and Cough-Related Research
- Vascular Malformations Diagnosis and Treatment
- Neurosurgical Procedures and Complications
Pusan National University Hospital
2016-2025
Pusan National University
2015-2025
National Research Foundation of Korea
2021
Biomedical Research Institute
2017-2020
Texas State University
2016
Element Six (United States)
2016
Georgia Institute of Technology
2016
Abstract To determine the effect of customized vestibular exercise (VE) and optokinetic stimulation (OS) using a virtual reality system in patients with persistent postural-perceptual dizziness (PPPD). Patients diagnosed PPPD were randomly assigned to VE group or OS group. All participants received for 20 min head mount display once week 4 weeks. The additionally 9 min. We analysed questionnaires, timed up-to-go (TUG) test, posturography scores at baseline after A total 28 (median age =...
Persistent postural-perceptual dizziness (PPPD) is a chronic functional vestibular disorder for which the Bárány Society has established diagnostic criteria. This nationwide multicenter study aims to investigate clinical features of individuals with definite PPPD and variant who do not fully meet criteria, particular focus on visual exaggeration.
Objectives To investigate the changes in incidence of otitis media and ventilation tube insertion (VTI) rates among South Koreans aged ≤18 years since COVID-19 pandemic analyze impact social distancing increased personal hygiene. Study Design A retrospective cohort study utilizing health insurance claim data. Setting Healthcare facilities across Korea. Patients Individuals diagnosed with acute suppurative (AOM), chronic serous (SOM), or mastoiditis (AM). Intervention Diagnostic therapeutic...
Full-wafer stress mapping is accomplished using visible and ultraviolet (UV) micro-Raman spectroscopy of a 730-nm thick GaN layer integrated with diamond grown by chemical vapor deposition. The UV measurements taken from both sides the wafer reveal higher tensile 0.86 ± 0.07 GPa at free surface compared to 0.23 0.06 GaN/diamond interface, each good cross-wafer uniformity. Factors influencing overall gradient are understood based on relaxation dislocations in which vary density along growth...
<b><i>Objectives:</i></b> This study aimed to investigate the efficacy of simultaneous steroid and hyperbaric oxygen therapy (HBOT) in patients with severe profound idiopathic sudden sensorineural hearing loss (ISSNHL), which has a poor prognosis. <b><i>Methods:</i></b> Sixty diagnosed ISSNHL (≥70 dB HL) were randomly divided into two groups prospective controlled trial: an oral + intratympanic injection (ITSI) group (control group) ITSI HBOT...
Objective: Our objective was to evaluate the surgical restrictions, audiologic benefits and satisfaction from using an active transcutaneous bone conduction device (BCD), Bonebridge® (BB) in patients with mixed/conductive hearing loss (MCHL) or single-sided deafness (SSD).Design: A retrospective review all who underwent BB surgery at Pusan National University Hospital 2015 2017 for SSD MCHL performed.Study sample: Twenty-two five had a implanted analysed.Results: Complete transmastoid...
Objectives The operating microscope (OM) commonly used in ear surgeries has several disadvantages, including a low depth of field, narrow field view, and unfavorable ergonomic characteristics. exoscope (EX) was developed to overcome these disadvantages. Herein, we compared OM EX during mastoidectomy found out the feasibility EX. Study Design Prospective randomized comparative study. Setting Tertiary academic medical center. Patients who had for chronic otitis media with or without...
Adipose-derived stromal cells (ADSCs) can repair auricular cartilage defects. Furthermore, stem cell secretome may also be a promising biological therapeutic option, which is equal to or even superior the cell. We explored efficacies of ADSCs and their in terms rabbit regeneration. were placed into surgically created After 4 8 weeks, resected auricles histopathologically immunohistochemically examined. used real-time PCR determine levels genes expressing collagen type II, transforming growth...
Idiopathic Sudden Sensorineural Hearing Loss (ISSHL) is an otologic emergency, and early prediction of prognosis may facilitate proper treatment. Therefore, we investigated the prognostic factors for predicting recovery in patients with ISSHL treated combined treatment method using machine learning models.We retrospectively reviewed medical records 298 at a tertiary institution between January 2015 September 2020. Fifty-two variables were analyzed to predict hearing recovery. Recovery was...
Ultraviolet (UV) micro-Raman measurements are reported of diamond grown on GaN using chemical vapor deposition. UV excitation permits simultaneous investigation the (D) and disordered carbon (DC) comprising polycrystalline layer. From line scans a cross-section along growth direction, DC component layer is found to be highest near GaN-on-diamond interface diminish with characteristic length scale ∼3.5 μm. Transmission electron microscopy (TEM) confirms presence DC. Combined TEM used develop...
Objectives: To compare the outcomes of medial and lateral underlay endoscopic type I tympanoplasty for anterior tympanic membrane (TM) perforations. Study Design: Retrospective chart review. Setting: Tertiary care academic referral center. Patients: Patients who were diagnosed with either chronic otitis media dry stable TM perforations or traumatic underwent between 2017 2019. Interventions: Medial tympanoplasty. Main Outcome Measures: Patient demographics, size, location perforation, graft...
Tissue engineering cell-based therapy using induced pluripotent stem cells and adipose-derived (ASCs) may be promising tools for therapeutic applications in tissue because of their abundance, relatively easy harvesting, high proliferation potential. The purpose this study was to investigate whether ASCs can promote the auricular cartilage regeneration rabbit. In order assess differentiation ability, were injected into midportion a surgically created defect Control group with normal saline....
Objective: Hyperbaric oxygen therapy (HBOT) is an accepted treatment option for sudden sensorineural hearing loss (SSNHL), but it still recommended in combination with corticosteroids. We investigated the efficacy of salvage HBOT refractory SSNHL that does not respond to corticosteroid therapy. Methods: Eighty-four patients were included, who had unilateral improvement pure-tone average (PTA) less than 10 dB after using intratympanic plus systemic corticosteroids (combined therapy) as...