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196 results on '"Hong, Sung‐Kwang"'

4. Clinical characteristics of persistent postural‐perceptual dizziness and its visual subtype in Korean patients: A multicenter cross‐sectional study

Author

Park, Joo Hyun, primary, Nguyen, Thanh Tin, additional, Kim, Sung‐Hee, additional, Park, Ji‐Yun, additional, Na, Seunghee, additional, Jeon, Eun‐Ju, additional, Seo, Ji won, additional, Cho, Chang Gun, additional, Oh, Se‐Joon, additional, Choi, Sung‐Won, additional, Choi, Kwang‐Dong, additional, Choi, Seo‐Young, additional, Choi, Ji Eun, additional, Hong, Sung‐Kwang, additional, Chung, Won‐Ho, additional, Cho, Young Sang, additional, Lee, Hwan Ho, additional, An, Yong‐Hwi, additional, Han, Kyu‐Hee, additional, Lee, Hyung, additional, Kim, Hyun Ah, additional, Lee, Ho Yun, additional, Lee, Jong‐Dae, additional, Lee, Se A, additional, and Oh, Sun‐Young, additional

Published
2024
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5. Risk for Esophageal Cancer Based on Lifestyle Factors–Smoking, Alcohol Consumption, and Body Mass Index: Insight from a South Korean Population Study in a Low-Incidence Area

Author

Kwon, Mi Jung, primary, Kang, Ho Suk, additional, Choi, Hyo Geun, additional, Kim, Joo-Hee, additional, Kim, Ji Hee, additional, Bang, Woo Jin, additional, Hong, Sung Kwang, additional, Kim, Nan Young, additional, Hong, Sangkyoon, additional, and Lee, Hong Kyu, additional

Published
2023
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7. Clinical features and predictors for developing complications of external auditory canal foreign bodies: A review of 455 cases.

Author

Cho, Eunhyun, Park, Doo Sik, Choi, Hyo Geun, Hong, Sung‐Kwang, Kim, Hyung‐Jong, and Lee, Hyo‐Jeong

Subjects
EAR canal, FOREIGN bodies, TYMPANIC membrane, DISEASE risk factors, TYMPANIC membrane perforation
Abstract

This article examines the complications and risk factors associated with foreign bodies (FBs) in the external auditory canal (EAC). The study analyzed 455 cases over an 8-year period and found that younger age, longer duration of impaction, nongraspable and animate FBs, and FBs touching the tympanic membrane (TM) were independent risk factors for complications. The authors recommend prompt removal of FBs and direct referral to an otolaryngologist for patients with these risk factors. The findings can be used to inform triage and treatment decisions for patients with FBs in the EAC. [Extracted from the article]

Published
2024
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19. Feasibility of Eye Tracking Assisted Vestibular Rehabilitation Strategy Using Immersive Virtual Reality

Author

Park, Jeong Hye, Jeon, Han Jae, Lim, Eun-Cheon, Koo, Ja-Won, Lee, Hyo-Jeong, Kim, Hyung-Jong, Lee, Jung Seop, Song, Chang-Geun, and Hong, Sung Kwang

Subjects
medicine.medical_specialty, medicine.medical_treatment, lcsh:Medicine, Virtual reality, Electroencephalography, 03 medical and health sciences, 0302 clinical medicine, Physical medicine and rehabilitation, medicine, 030223 otorhinolaryngology, Vestibular system, Rehabilitation, Vestibular rehabilitation, medicine.diagnostic_test, business.industry, lcsh:R, Virtual Reality, lcsh:Otorhinolaryngology, lcsh:RF1-547, Saccadic masking, Visualization, Vestibular Diseases, Otorhinolaryngology, 030220 oncology & carcinogenesis, Eye tracking, Original Article, Surgery, business
Abstract

Objectives Even though vestibular rehabilitation therapy (VRT) using head-mounted display (HMD) has been highlighted recently as a popular virtual reality platform, we should consider that HMD itself do not provide interactive environment for VRT. This study aimed to test the feasibility of interactive components using eye tracking assisted strategy through neurophysiologic evidence. Methods HMD implemented with an infrared-based eye tracker was used to generate a virtual environment for VRT. Eighteen healthy subjects participated in our experiment, wherein they performed a saccadic eye exercise (SEE) under two conditions of feedback-on (F-on, visualization of eye position) and feedback-off (F-off, non-visualization of eye position). Eye position was continuously monitored in real time on those two conditions, but this information was not provided to the participants. Electroencephalogram recordings were used to estimate neural dynamics and attention during SEE, in which only valid trials (correct responses) were included in electroencephalogram analysis. Results SEE accuracy was higher in the F-on than F-off condition (P=0.039). The power spectral density of beta band was higher in the F-on condition on the frontal (P=0.047), central (P=0.042), and occipital areas (P=0.045). Beta-event-related desynchronization was significantly more pronounced in the F-on (-0.19 on frontal and -0.22 on central clusters) than in the F-off condition (0.23 on frontal and 0.05 on central) on preparatory phase (P=0.005 for frontal and P=0.024 for central). In addition, more abundant functional connectivity was revealed under the F-on condition. Conclusion Considering substantial gain may come from goal directed attention and activation of brain-network while performing VRT, our preclinical study from SEE suggests that eye tracking algorithms may work efficiently in vestibular rehabilitation using HMD.

Published
2019

35. Acute Alcohol Intake Deteriorates Hearing Thresholds and Speech Perception in Noise.

Author

Choi, Hyo Geun, Hong, Sung Kwang, Lee, Hyo-Jeong, and Chang, Jiwon

Subjects
*THRESHOLD (Perception), *SPEECH perception, *OTOACOUSTIC emissions, *BLOOD alcohol, *AUDITORY pathways
Abstract

Objectives: The hearing process involves complex peripheral and central auditory pathways and could be influenced by various situations or medications. To date, there is very little known about the effects of alcohol on the auditory performances. The purpose of the present study was to evaluate how acute alcohol administration affects various aspects of hearing performance in human subjects, from the auditory perceptive threshold to the speech-in-noise task, which is cognitively demanding. Methods: A total of 43 healthy volunteers were recruited, and each of the participants received calculated amounts of alcohol according to their body weight and sex with a targeted blood alcohol content level of 0.05% using the Widmark formula. Hearing was tested in alcohol-free conditions (no alcohol intake within the previous 24 h) and acute alcohol conditions. A test battery composed of pure-tone audiometry, speech reception threshold (SRT), word recognition score (WRS), distortion product otoacoustic emission (DPOAE), gaps-in-noise (GIN) test, and Korean matrix sentence test (testing speech perception in noise) was performed in the 2 conditions. Results: Acute alcohol intake elevated pure-tone hearing thresholds and SRT but did not affect WRS. Both otoacoustic emissions recorded with DPOAE and the temporal resolution measured with the GIN test were not influenced by alcohol intake. The hearing performance in a noisy environment in both easy (−2 dB signal-to-noise ratio [SNR]) and difficult (−8 dB SNR) conditions was decreased by alcohol. Conclusions: Acute alcohol elevated auditory perceptive thresholds and affected performance in complex and difficult auditory tasks rather than simple tasks. [ABSTRACT FROM AUTHOR]

Published
2021
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36. Quantitative analysis of cochlear signal intensity on three-dimensional and contrast-enhanced fluid-attenuated inversion recovery images in patients with Meniere's disease: Correlation with the pure tone audiometry test

Author

Lee, Jaehyung, primary, Kim, Eun Soo, additional, Lee, Yul, additional, Lee, Kwanseop, additional, Yoon, Dae Young, additional, Ju, Young-Su, additional, Lee, Hyo-Jeong, additional, Hong, Sung Kwang, additional, and Kwon, Mi Jung, additional

Published
2019
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43. Response to Letter to the Editor: Prevalence of vestibular and balance disorders in children and adolescents according to age category: A multi-center study in Korea

Author

Lee, Jong Dae, primary, Kim, Chang-Hee, additional, Hong, Seok Min, additional, Kim, Sung Huhn, additional, Suh, Myung-Whan, additional, Kim, Min-Beom, additional, Shim, Dae Bo, additional, Chu, Hosuk, additional, Lee, No Hee, additional, Kim, Minbum, additional, Hong, Sung Kwang, additional, and Seo, Jae-Hyun, additional

Published
2017
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46. Investigation of Porcine Melanocortin-4 Receptor (MC4R) Polymorphism on Economic Traits

Author

Shin Hee Young, Kim Tae-Hun, Hong Sung-Kwang, Choi Bong-Hwan, Cho Byung-Wook, Kim Kwan-Suk, Lee Joong-Jae, and Lee Hak-Kyo

Subjects
Melanocortin 4 receptor, Genetics, Genetic marker, Genotype, medicine, Biology, medicine.disease, Receptor, Feed conversion ratio, Phenotype, Gene, Obesity
Abstract

The Melanocortin-4 receptor gene (MC4R) regulates the energy balance and the genetic basis of obesity. A polymorphism in the porcine melanocortin-4 receptor has previously shown to be associated with growth, fat deposition and feed intake. In this study, the polymorphism of the gene was studied in several pig breeds of Duroc, Landrace, Berkshire, and Yorkshire. The results showed that the frequencies of MC4R genotype varied among those breeds. Association analyses were also performed between the MC4R polymorphism and average daily gain, feed conversion ratio, backfat thickness and lean percentage phenotypes. The results strongly support that the MC4R polymorphism can be used DNA marker selection indicator for economically important traits for pig breeding program in Korea.

Published
2005

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