1.Transorbital Penetrating Intracranial Injury by a Chopstick.
Tae Hee SHIN ; Jong Hoon KIM ; Kyung Woo KWAK ; Seong Ho KIM
Journal of Korean Neurosurgical Society 2012;52(4):414-416
A 38-year-old man fell from a chair with a chopstick in his hand. The chopstick penetrated his left eye. He noticed pain, swelling, and numbness around his left eye. On physical examination, a linear wound was noted at the medial aspect of the left eyelid. Noncontrast computed tomography (CT) study showed a linear hypodense structure extending from the medial aspect of the left orbit to the occipital bone, suggesting a foreign body. This foreign body was hyperdense relative to normal parenchyma. From a CT scan with 3-dimensional reconstruction, the foreign body was found to be passing through the optic canal into the cranium. The clear plastic chopstick was withdrawn without difficulty. The patient was discharged home 3 weeks after his surgery. A treatment plan for a transorbital penetrating injury should be determined by a multidisciplinary team, with input from neurosurgeons and ophthalmologists.
Adult
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Craniocerebral Trauma
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Eye
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Eyelids
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Foreign Bodies
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Hand
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Humans
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Hypesthesia
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Occipital Bone
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Orbit
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Physical Examination
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Plastics
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Skull
2.A Validation and Reliability Study of the Korean Version of National Eye Institute Visual Function Questionnaire 25.
Jang Won HEO ; Hee Seong YOON ; Jae Pil SHIN ; Sang Woong MOON ; Hee Seung CHIN ; Hyung Woo KWAK
Journal of the Korean Ophthalmological Society 2010;51(10):1354-1367
PURPOSE: To translate and evaluate the reliability and validity of the Korean version of the National Eye Institute Visual Functioning Questionnaire-25 (NEI-VFQ-25). METHODS: Two bilingual ophthalmologists independently translated the original English version of the NEI-VFQ-25 into written Korean. A panel of the Korean Retina Society reviewed the translations to form a single reconciled forward translation of the Korean version of the NEI-VFQ-25. Another ophthalmologist back-translated this first draft into English. Both the first draft and back-translated draft were edited by a professional translator. To evaluate the correlation and validity, results between the original NEI-VFQ-25 and the Korean version, completed by the bilingual participants, were compared. RESULTS: The Korean version of the National Eye Institute Visual Functioning Questionnaire-25 was developed by translation, back-translation, and expert supervision. Results from 23 bilingual participants between the original NEI-VFQ-25 and the Korean version were compared and showed statistically significant correlation, with a Spearman's correlation coefficient of 0.4 or greater. The Kolmogorov-Smirnov test results showed no statistically significant differences between the two questionnaires. CONCLUSIONS: Translation and validation of the Korean version of the NEI-VFQ-25 was achieved.
National Eye Institute (U.S.)
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Organization and Administration
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Surveys and Questionnaires
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Reproducibility of Results
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Retina
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Translations
3.The Effects of Exercise and Restriction of Sugar-Sweetened Beverages on Muscle Function and Autophagy Regulation in High-Fat High-Sucrose-Fed Obesity Mice
Didi ZHANG ; Ji Hyun LEE ; Hyung Eun SHIN ; Seong Eun KWAK ; Jun Hyun BAE ; Liang TANG ; Wook SONG
Diabetes & Metabolism Journal 2021;45(5):773-786
Background:
Autophagy maintains muscle mass and healthy skeletal muscles. Several recent studies have associated sugar-sweetened beverage (SSB) consumption with diseases. We investigated whether muscle dysfunction due to obesity could be restored by SSB restriction (SR) alone or in combination with exercise (EX) training.
Methods:
Obese mice were subjected to SR combined with treadmill EX. Intraperitoneal glucose tolerance test, grip strength test, hanging time test, and body composition analysis were performed. Triglyceride (TG) and total cholesterol (TC) serum concentrations and TG concentrations in quadriceps muscles were analyzed. Western blot and reverse transcription-quantitative polymerase chain reaction helped analyze autophagy-related protein and mRNA expression, respectively.
Results:
SR alone had no significant effect on fasting blood glucose levels, glucose tolerance, and muscle function. However, it had effect on serum TC, serum TG, and BCL2 interacting protein 3 expression. SR+EX improved glucose tolerance and muscle function and increased serum TC utilization than SR alone. SR+EX reduced P62 levels, increased glucose transporter type 4 and peroxisome proliferator-activated receptor γ coactivator-1α protein expression, and improved grip strength relative to the high-fat and high-sucrose liquid (HFHS) group, and this was not observed in the HFHS+EX group.
Conclusion
SR induced mitophagy-related protein expression in quadriceps, without affecting muscle function. And, the combination of SR and EX activated mitophagy-related proteins and improved muscle function.
4.The Effects of Exercise and Restriction of Sugar-Sweetened Beverages on Muscle Function and Autophagy Regulation in High-Fat High-Sucrose-Fed Obesity Mice
Didi ZHANG ; Ji Hyun LEE ; Hyung Eun SHIN ; Seong Eun KWAK ; Jun Hyun BAE ; Liang TANG ; Wook SONG
Diabetes & Metabolism Journal 2021;45(5):773-786
Background:
Autophagy maintains muscle mass and healthy skeletal muscles. Several recent studies have associated sugar-sweetened beverage (SSB) consumption with diseases. We investigated whether muscle dysfunction due to obesity could be restored by SSB restriction (SR) alone or in combination with exercise (EX) training.
Methods:
Obese mice were subjected to SR combined with treadmill EX. Intraperitoneal glucose tolerance test, grip strength test, hanging time test, and body composition analysis were performed. Triglyceride (TG) and total cholesterol (TC) serum concentrations and TG concentrations in quadriceps muscles were analyzed. Western blot and reverse transcription-quantitative polymerase chain reaction helped analyze autophagy-related protein and mRNA expression, respectively.
Results:
SR alone had no significant effect on fasting blood glucose levels, glucose tolerance, and muscle function. However, it had effect on serum TC, serum TG, and BCL2 interacting protein 3 expression. SR+EX improved glucose tolerance and muscle function and increased serum TC utilization than SR alone. SR+EX reduced P62 levels, increased glucose transporter type 4 and peroxisome proliferator-activated receptor γ coactivator-1α protein expression, and improved grip strength relative to the high-fat and high-sucrose liquid (HFHS) group, and this was not observed in the HFHS+EX group.
Conclusion
SR induced mitophagy-related protein expression in quadriceps, without affecting muscle function. And, the combination of SR and EX activated mitophagy-related proteins and improved muscle function.
5.A Comparison Between the Performances of Verbal and Nonverbal Fluency Tests in Discriminating Between Mild Cognitive Impairments and Alzheimer’s Disease Patients and Their Brain Morphological Correlates
Seyul KWAK ; Seong A SHIN ; Hyunwoong KO ; Hairin KIM ; Dae Jong OH ; Jung Hae YOUN ; Jun-Young LEE ; Yu Kyeong KIM
Dementia and Neurocognitive Disorders 2022;21(1):17-29
Background:
and Purpose: Verbal and nonverbal fluency tests are the conventional methods for examining executive function in the elderly population. However, differences in impairments result in fluency tests in patients with mild cognitive impairments (MCIs) and Alzheimer’s disease (AD) and in neural correlates underlying the tests still necessitate concrete evidence.
Methods:
We compared the test performances in 27 normal controls, 28 patients with MCI, and 20 with AD, and investigated morphological changes in association with the test performances using structural magnetic imaging.
Results:
Patients with AD performed poorly across all the fluency tests, and a receiver operating characteristics curve analysis revealed that only category fluency test discriminated all the 3 groups. Association, category, and design fluency tests involved temporal and frontal regions, while letter fluency involved the cerebellum and caudate.
Conclusions
Category fluency is a reliable measure for screening patients with AD and MCI, and this efficacy might be related to morphological correlates that underlie semantic and executive processing.
6.Erratum: A Comparison Between the Performances of Verbal and Nonverbal Fluency Tests in Discriminating Between Mild Cognitive Impairments and Alzheimer’s Disease Patients and Their Brain Morphological Correlates
Seyul KWAK ; Seong A SHIN ; Hyunwoong KO ; Hairin KIM ; Dae Jong OH ; Jung Hae YOUN ; Jun-Young LEE ; Yu Kyeong KIM
Dementia and Neurocognitive Disorders 2023;22(2):85-85
7.In Vitro Virucidal Effect of Povidone-Iodine Against SARS-CoV-2
Kyeong Ryeol SHIN ; Kyunghee KWAK ; Chunguang CUI ; Joon-Yong BAE ; Woosung HONG ; Man-Seong PARK
Journal of Bacteriology and Virology 2020;50(3):195-202
As of September 2020, SARS-CoV-2 has infected over 30 million people worldwide, and the death toll has now risen to 950,000. Given that Povidone-iodine (PVP-I) had consistently been showing the virucidal efficacy against various types of viruses, such as SARS-CoV, MERS-CoV, and Ebola, we conducted this study to figure out the virucidal effect against SARS-CoV-2 by using a viral plaque assay. We performed Kill-Time assays to assess the viral inactivation of SARS-CoV-2 contaminants after the application of the PVP-I product (Betadine® Throat Spray, PVP-I 0.45%). This test consisted of clean and dirty conditions and was designed to check the viral titers at a contact time of 60 seconds, which were evaluated by plaque-reduction rates in Vero cells. This PVP-I product fully achieved ≥4 log 10 reductions in viral titers under both clean and dirty conditions. This level of reduction, ≥4 log 10 (99.99%), in viral titers presented to be effective in terms of virucidal efficacy, according to the European standards, EN14476. This study revealed the virucidal efficacy of Betadine® Throat Spray against SARS-CoV-2 virus. Given that the convenience and availability of this product, we think that it may contribute to inhibit viral infection and transmissibility as an active type of personal protective equipment (PPE) by managing the hygiene of patients and medical professionals.
8.Anti-Sm Antibody, Damage Index, and Corticosteroid Use Are Associated with Cardiac Involvement in Systemic Lupus Erythematosus: Data from a Prospective Registry Study
Jung-Yoon CHOE ; Shin-Seok LEE ; Sang Gyu KWAK ; Seong-Kyu KIM
Journal of Korean Medical Science 2020;35(21):e139-
Background:
Disease-specific factors that predispose patients to diverse cardiac diseases in systemic lupus erythematosus (SLE) have been established. The aim of this study was to identify risk factors for cardiac involvement in patients with SLE drawn from the Korean Lupus Network (KORNET) registry.
Methods:
A total of 437 patients with SLE recruited from the KORNET registry were included in the analysis. The Cox proportional hazard model was used to identify risk factors for the development of cardiac involvement during the follow-up period. The hazard ratios for risk factors of cardiac involvement were assessed using Kaplan-Meier curves and log-rank test.
Results:
Of 437 patients with SLE, 12 patients (2.7%) developed new cardiac involvement during a median follow-up period of 47.6 months. Frequencies in men and in patients with anti-Sm antibody, anti-Ro antibody, and at least one Systemic Lupus International Collaborating Clinics/American College of Rheumatology damage index (SDI) score in patients with cardiac involvement were higher, compared to those without cardiac involvement (P < 0.001, P = 0.026, P = 0.015, and P < 0.001, respectively). Men gender, older age, anti-Sm antibody, SDI, and corticosteroid dosage were potent predictors for cardiac involvement in patients with SLE in the determination of risk factors for cardiac involvement. Men, anti-Sm antibody positivity, and SDI ≥ 1 increased incidence rates of cardiac involvement for (P < 0.001, P = 0.036, and P < 0.001, respectively).
Conclusion
The results of this study reveal that SLE-related factors such as anti-Sm antibody, SDI, and corticosteroid dosage at baseline are risk factors for cardiac involvement in SLE.
9.Correlation between Surrogate Quality Indicators for Adenoma Detection Rate and Adenoma Miss Rate in Qualified Colonoscopy, CORE Study: KASID Multicenter Study
Jae Hee HAN ; Hyun Gun KIM ; Eu Mi AHN ; Suyeon PARK ; Seong Ran JEON ; Jae Myung CHA ; Min Seob KWAK ; Yunho JUNG ; Jeong Eun SHIN ; Hyun Deok SHIN ; Young-Seok CHO
Gut and Liver 2022;16(5):716-725
Background/Aims:
The adenoma detection rate (ADR) does not reflect the complete detection of every adenoma during colonoscopy; thus, many surrogate indicators have been suggested.This study investigated whether the ADR and surrogate quality indicators reflect the adenoma miss rate (AMR) when performing qualified colonoscopy.
Methods:
We performed a prospective, multicenter, cross-sectional study of asymptomatic examinees aged 50 to 75 years who underwent back-to-back screening colonoscopies by eight endoscopists. The ADR and surrogate quality indicators, including polyp detection rate, total number of adenomas per colonoscopy, additional adenomas found after the first adenoma per colonoscopy (ADR-Plus), and total number of adenomas per positive participant, were calculated for the prediction of AMR.
Results:
A total of 371 back-to-back colonoscopies were performed. There was a significant difference in ADRs (range, 44% to 75.4%; p=0.024), polyp detection rates (range, 56% to 86.9%; p=0.008) and adenomas per positive participants (range, 1.19 to 2.30; p=0.038), and a tendency of a difference in adenomas per colonoscopy (range, 0.62 to 1.31; p=0.051) and ADR-Plus (range, 0.13 to 0.70; p=0.054) among the endoscopists. The overall AMR was 20.1%, and AMRs were not different (range, 13.9 to 28.6; p>0.05) among the endoscopists. No quality indicators were significantly correlated with AMR. The number of adenomas found during the first colonoscopy was an independent factor for increased AMR (odds ratio, 1.79; p<0.001).
Conclusions
The colonoscopy quality indicators were significantly different among high-ADR endoscopists, and none of the quality indicators reflected the AMR of good quality colonoscopy performances. The only factor influencing AMR was the number of adenomas detected during colonoscopy.
10.Usefulness of Quantitative Analysis of Computed Tomography Pulmonary Angiography as a Predictor of Prognosis of Acute Pulmonary Embolism.
Sung Wook SONG ; Jin Sik PARK ; Hwan Jun JE ; Hyun Ju LEE ; Eun Ah PARK ; Sang Do SHIN ; Seong Ku JEONG ; Young Ho KWAK ; Gil Joon SEO
Journal of the Korean Society of Emergency Medicine 2009;20(1):40-49
PURPOSE: We evaluated the usefulness of quantitative analysis of computed tomography (CT) pulmonary angiography as a predictor of the prognosis of acute pulmonary embolism (PTE). METHODS: We performed a retrospective analysis of 55 patients who visited our emergency department from January 2000 to November 2007 who were confirmed with PTE by CT pulmonary angiography. Two radiologists blinded to patient outcome measured CT parameters including the diameter of vessels and chambers, and the quantified pulmonary artery (PA) clot load score on the basis of embolus size and location. CT parameters and other clinical predictors were analyzed to determine their ability to predict major adverse event (MAE). RESULTS: Of the 55 patients, 16 (29.1%) had a MAE PTE related shock, intubation, death, thrombolysis, right ventricular (RV) dysfunction within 30 days). Geneva score (odds ratio 2.5, 95% CI 1.18-5.29, p=0.02) and PA clot load score (odds ratio 1.64, 95% CI 1.18-2.27, p<0.01) were strong independent predictors of MAE. The cut-off value of Geneva and PA clot load scores were 4.5 and 19.0, respectively, and the area under the ROC curve were 0.697 (0.546~0.848) and 0.908 (0.828-0.988), respectively. CONCLUSION: Geneva and PA clot load score are significant predictors of PTE related shock, intubation, death, thrombolysis, and RV dysfunction within 30 days. CT pulmonary angiography is a useful predictor for the prognosis of PTE as well as a useful diagnostic tool.
Angiography
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Embolism
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Emergencies
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Humans
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Intubation
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Prognosis
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Pulmonary Artery
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Pulmonary Embolism
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Retrospective Studies
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ROC Curve
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Shock