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306 results on '"Choi, Sung-Hyuk"'

1. Sex differences in in-hospital management in patients with sepsis and septic shock: a prospective multicenter observational study

Author

Ahn, Sejoong, Jin, Bo-Yeong, Lee, Sukyo, Kim, Sungjin, Moon, Sungwoo, Cho, Hanjin, Han, Kap Su, Jo, You Hwan, Kim, Kyuseok, Shin, Jonghwan, Suh, Gil Joon, Kwon, Woon Yong, Shin, Tae Gun, Choi, Han Sung, Choi, Sangchun, Park, Yoo Seok, Chung, Sung Phil, Kim, Won Young, Ahn, Hong Joon, Lim, Tae Ho, Choi, Sung-Hyuk, and Park, Jong-Hak

Published
2024
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9. Early Mortality Stratification with Serum Albumin and the Sequential Organ Failure Assessment Score at Emergency Department Admission in Septic Shock Patients.

Author

Kim, Sang-Min, Ryoo, Seung-Mok, Shin, Tae-Gun, Jo, You-Hwan, Kim, Kyuseok, Lim, Tae-Ho, Chung, Sung-Phil, Choi, Sung-Hyuk, Suh, Gil-Joon, and Kim, Won-Young

Subjects
SERUM albumin, RECEIVER operating characteristic curves, SEPTIC shock, ALBUMINS, HOSPITAL emergency services, SOFAS
Abstract

Background: Early risk stratification is crucial due to septic patients' heterogeneity. Serum albumin level may reflect the severity of sepsis and host status. This study aimed to evaluate the prognostic ability of the initial sequential organ failure assessment (SOFA) score alone and combined with serum albumin levels for predicting 28-day mortality in patients with septic shock. Methods: We conducted an observational study using a prospective, multicenter registry of septic shock patients between October 2015 and May 2022 from 12 emergency departments in the Korean Shock Society and the results were validated by examining those from the septic shock cohort in Asan Medical Center. The primary outcome was 28-day mortality. The area under the receiver operating characteristic (ROC) curve was used to compare the predictive values of SOFA score alone and SOFA score combined with serum albumin level. Results: Among 5805 septic shock patients, 1529 (26.3%) died within 28 days. Mortality increased stepwise with decreasing serum albumin levels (13.6% in albumin ≥3.5, 20.7% in 3.5–3.0, 29.7% in 3.0–2.5, 44.0% in 2.5–2.0, 56.4% in <2.0). The albumin SOFA score was calculated by adding the initial SOFA score to the 4 points assigned for albumin levels. ROC analysis for predicting 28-day mortality showed that the area under the curve for the albumin SOFA score was 0.71 (95% CI 0.70–0.73), which was significantly higher than that of the initial SOFA score alone (0.68, 95% CI: 0.67–0.69). Conclusions: The combination of the initial SOFA score with albumin can improve prognostic accuracy for patients with septic shock, suggesting the albumin SOFA score may be used as an early mortality stratification tool. [ABSTRACT FROM AUTHOR]

Published
2024
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11. The usefulness of lactate/albumin ratio, C-reactive protein/albumin ratio, procalcitonin/albumin ratio, SOFA, and qSOFA in predicting the prognosis of patients with sepsis who presented to emergency departments

Author

Yoo, Kyung Hun, primary, Choi, Sung-Hyuk, additional, Suh, Gil Joon, additional, Chung, Sung Phil, additional, Choi, Han Sung, additional, Park, Yoo Seok, additional, Jo, You Hwan, additional, Shin, Tae Gun, additional, Lim, Tae Ho, additional, Kim, Won Young, additional, and Lee, Juncheol, additional

Published
2023
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15. Low-dose CT for the diagnosis of appendicitis in adolescents and young adults (LOCAT): a pragmatic, multicentre, randomised controlled non-inferiority trial

Author

Kim, Hyuk Jung, Jeon, Byeong Geon, Hong, Chong Kun, Kwon, Kye Won, Han, Seung Bong, Paik, Soya, Jang, Suk Ki, Ha, Young Rock, Kim, Young Sik, Lee, Min Hee, Yi, Boem Ha, Shin, Eung Jin, Lee, Hae Kyung, Kim, Hee Kyung, Kim, Ho Jung, Choi, Jae Hyung, Cho, Young Soon, Kim, Min-Jeong, Kim, Dong Kyu, Choe, Ji-Young, Min, Kyueng-Whan, Lim, Man Sup, Ha, Sang Ook, Lim, Sang Woo, Sohn, Youdong, Lee, Young Hwan, Park, Ji Hoon, Gu, Bon Seung, Lee, Hye Seung, Lee, Jae Hyuk, Sim, Ji Ye, Kim, Joonghee, Lee, Kyoung Ho, Kim, Kyuseok, Ahn, Soyeon, Kang, Sung-Bum, Lee, Yoon Jin, Jo, You Hwan, Kim, Young Hoon, Ko, Yousun, Choi, Seung Joon, Song, Bohyung, Goh, Byung Ho, Lim, Chaesuk, Kim, Chang Rae, Seo, Cho Rong, Kim, Eunbaeck, Han, Gio, Woo, Jae-Hyug, Kim, Jinhyun, Min, Kyoungjin, Lee, Min-A, Jeong, Min Ju, Lee, Min Kyoung, Lim, Yong Su, Shim, Young Sup, Park, Sung Bin, Kim, Chan Woong, Lee, Dong Hoon, Lee, Seung Eun, Kim, Sung Eun, Choi, Yoo Shin, Rha, Sung Eun, Jung, Eun Sun, Na, Gun Hyung, Kim, Han Joon, Yoo, Han Mo, Chang, Hye Kyung, Choi, Joon Il, Park, Kyu Nam, Park, Michael Yong, Choi, Moon Hyung, Oh, Sang Hoon, Jung, Seung Eun, Lee, Sohee, Im, Soo Ah, Kim, Soo Hyun, Oh, Soon Nam, Hong, Tae Ho, Kang, Won-Kyung, Lee, Young Joon, Kang, Dong Baek, Han, Hyun Soo, Choi, Jeong Woo, Yoon, Ki-Jung, Hwang, Yong, Hong, Seong Sook, Hwang, Eui Sung, Chung, Heajin, Jang, Hye Young, Hwang, Jiyoung, Park, Jun Bum, Hur, Kyung Yul, Jeen, Yoon Mi, Lee, Young Joo, Cho, Young Shin, Cho, Han Jin, Choi, Inyoung, Park, Jong Hak, Kim, Jooyeong, Yeom, Suk Keu, Moon, Sung Woo, Kim, Mi Sung, Shin, Dong Hyuk, Kwon, Heon-Ju, Choi, Pil Cho, Han, Sang Kuk, Woo, Ji Young, Kang, Gu Hyun, Kim, Han Myun, Choi, Hyun Young, Yang, Ik, Jang, Jae Ho, Kim, Jeong Won, Yoon, Sang Nam, Kim, Won Hee, Jang, Yong Soo, Park, Mi-Suk, Park, In Cheol, Lee, Jae Gil, Kim, Min Joung, Chung, Yong Eun, Lee, Jongmee, Kim, Baek-Hui, Lee, Chang Hee, Kim, Jung-Youn, Kang, Sanghee, Choi, Sung-Hyuk, Park, Yang Shin, Cho, Seong Whi, Park, Chan Woo, Chae, Gi Bong, Ohk, Taek Guen, Jeon, Yong-Hwan, Hong, Nurhee, Wi, Dae Han, Lee, Jun Hee, Kwon, Jung Nam, Lee, Seok Youn, Han, Weon-Cheol, Song, Young Cheol, Kim, Mi Jeong, Kwon, Jung Hyeok, Beak, Seoung Kyu, Kim, Sung Jin, Choi, Woo Ik, Kang, Yu Na, Shin, Cheong-Il, Lee, Dong Ho, Kang, Gyeong Hoon, Joo, Ijin, Yoon, Jeong Hee, Park, Ji Won, Park, Kyu Joo, Shin, Sang Do, Ryoo, Seung-Bum, Jeong, Seung-Yong, Ahn, Su Joa, Kim, Tae Han, Chang, Won, Kwon, Yoon-Hye, Shin, Sang Soo, Kim, Hee Joon, Kim, Ho Goon, Cho, Yong Soo, Choi, Yoo Duk, Kim, Bong Soo, Hyun, Chang Lim, Choi, Guk Myung, Jeong, In Ho, Kang, Kyeong Won, Kim, Seung Hyoung, Kim, Woo Jeong, Kang, Young Joon, and Kim, Kwang Pyo

Published
2017
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17. Combination therapy of vitamin C and thiamine for septic shock in a multicentre, double-blind, randomized, controlled study (ATESS): study protocol for a randomized controlled trial

Author

Hwang, Sung Yeon, Park, Jong Eun, Jo, Ik Joon, Kim, Seonwoo, Chung, Sung Phil, Kong, Taeyoung, Shin, Jonghwan, Lee, Hui Jai, You, Kyoung Min, Jo, You Hwan, Kim, Doyun, Suh, Gil Joon, Kim, Taegyun, Kim, Won Young, Kim, Youn-Jung, Ryoo, Seung Mok, Choi, Sung-Hyuk, Shin, Tae Gun, and for the Korean Shock Society (KoSS) Investigators

Published
2019
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18. The usefulness of C-reactive protein and procalcitonin to predict prognosis in septic shock patients: A multicenter prospective registry-based observational study

Author

Ryoo, Seung Mok, Han, Kap Su, Ahn, Shin, Shin, Tae Gun, Hwang, Sung Yeon, Chung, Sung Phil, Hwang, Yoon Jung, Park, Yoo Seok, Jo, You Hwan, Chang, Hyung Lan, Suh, Gil Joon, You, Kyoung Min, Kang, Gu Hyun, Choi, Sung-Hyuk, Lim, Tae Ho, Kim, Won Young, and Korean Shock Society (KoSS) Investigators

Published
2019
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19. Machine Learning Model Development and Validation for Predicting Outcome in Stage 4 Solid Cancer Patients with Septic Shock Visiting the Emergency Department: A Multi-Center, Prospective Cohort Study

Author

Ko, Byuk Sung, primary, Jeon, Sanghoon, additional, Son, Donghee, additional, Choi, Sung-Hyuk, additional, Shin, Tae Gun, additional, Jo, You Hwan, additional, Ryoo, Seung Mok, additional, Kim, Youn-Jung, additional, Park, Yoo Seok, additional, Kwon, Woon Yong, additional, Suh, Gil Joon, additional, Lim, Tae Ho, additional, and Kim, Won Young, additional

Published
2022
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23. Prognosis of patients excluded by the definition of septic shock based on their lactate levels after initial fluid resuscitation: a prospective multi-center observational study

Author

Ko, Byuk Sung, Kim, Kyuseok, Choi, Sung-Hyuk, Kang, Gu Hyun, Shin, Tae Gun, Jo, You Hwan, Ryoo, Seung Mok, Beom, Jin Ho, Kwon, Woon Yong, Han, Kap Su, Choi, Han Sung, Chung, Sung Phil, Suh, Gil Joon, Lim, Tae Ho, Kim, Won Young, and for the Korean Shock Society (KoSS) Investigators

Published
2018
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26. Additional file 1 of Modified cardiovascular SOFA score in sepsis: development and internal and external validation

Author

Lee, Hui Jai, Ko, Byuk Sung, Ryoo, Seung Mok, Han, Eunah, Suh, Gil Joon, Choi, Sung-Hyuk, Chung, Sung Phil, Lim, Tae Ho, Kim, Won Young, Kwon, Woon Yong, Hwang, Sung Yeon, Jo, You Hwan, Shin, Jonghwan, Shin, Tae Gun, and Kim, Kyuseok

Abstract

Additional file 1: TableS1. Candidate models for modified cardiovascular SOFAscore. Table S2. Candidate models for vasopressor only cardiovascularSOFA score. Table S3. Conversion table of norepinephrine equivalent dose.Table S4. Number of cases used in analysis and missing values. TableS5. Slope and intercept of calibration plots in the modified SOFA Models. Table S6. Slope and intercept of calibration plots in the vasopressor only SOFA models. TableS7. Comparison of adjusted AUROC among the original SOFA, the modified SOFAscores, and the vasopressor only SOFA scores. Table S8. Cross table ofthe sepsis criteria by the original SOFA and the modified SOFA scores in thesuspected infection cohort. Table S9. Diagnostic performance of thesepsis criteria by the original SOFA and the modified SOFA score for predicting28-day mortality in the suspected infection cohort. Table S10. Reclassificationstatistics for 28-day mortality of the modified model and the vasopressor onlymodel. Figure S1. Workflow of SOFA score calculation. Figure S2. Distributionand 28-day mortality according to modified SOFA scores of the candidate modelsin the derivation cohort. Figure S3. Receiver operating characteristiccurves for 28-day mortality of the modified cardiovascular SOFA models in thederivation cohort. Figure S4. Calibration plots for 28-day mortality ofthe modified cardiovascular SOFA models in the derivation cohort. Figure S5. Distribution of 28-day mortality according to original, modified, andvasopressor only total SOFA scores for each cohort. Figure S6. Theincidence and 28-day mortality of other cardiovascular (CV) models:lactate-only CV SOFA and the original CV SOFA with norepinephrine equivalentdose. Figure S7. Sensitivity analysis for complete data sets. FigureS8. Distribution and 28-day mortality according to the modified models andthe vasopressor only models in the internal and external validation cohort. FigureS9. Receiver operating characteristic curves for 28-day mortality of themodified models and the vasopressor only models in the internal and externalvalidation cohort. Figure S10. Calibration plots for 28-day mortality ofthe modified models and the vasopressor only models in the internal and externalvalidation cohort.

Published
2022
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27. Additional file 1 of Relationship between time of emergency department admission and adherence to the Surviving Sepsis Campaign bundle in patients with septic shock

Author

You, Je Sung, Park, Yoo Seok, Chung, Sung Phil, Lee, Hye Sun, Jeon, Soyoung, Kim, Won Young, Shin, Tae Gun, Jo, You Hwan, Kang, Gu Hyun, Choi, Sung Hyuk, Suh, Gil Joon, Ko, Byuk Sung, Han, Kap Su, Shin, Jong Hwan, and Kong, Taeyoung

Subjects
Data_FILES
Abstract

Additional file 1. Supplemental tables.

Published
2022
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32. Effect of rapid fluid administration on the prognosis of septic shock patients with isolated hyperlactatemia: A prospective multicenter observational study

Author

Lee, Heekyung, primary, Choi, Sung-Hyuk, additional, Kim, Kyuseok, additional, Shin, Tae Gun, additional, Park, Yoo Seok, additional, Ryoo, Seung Mok, additional, Suh, Gil Joon, additional, Kwon, Woon Yong, additional, Lim, Tae Ho, additional, Son, Donghee, additional, Kim, Won Young, additional, and Ko, Byuk Sung, additional

Published
2021
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33. Biomarker Analysis for Combination Therapy of Vitamin C and Thiamine in Septic Shock: A Post-Hoc Study of the ATESS Trial

Author

Park, Jong Eun, primary, Jo, You Hwan, additional, Hwang, Sung Yeon, additional, Kim, Won Young, additional, Ryoo, Seung Mok, additional, Jang, Dong-Hyun, additional, Kim, Taegyun, additional, Kim, Youn-Jung, additional, Kim, Seonwoo, additional, Cho, Hyun, additional, Lee, Gun Tak, additional, Chung, Sung Phil, additional, Choi, Sung-Hyuk, additional, Shin, Tae Gun, additional, and Suh, Gil Joon, additional

Published
2021
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35. Impact of COVID-19 Pandemic on Management and Outcomes in Patients with Septic Shock in the Emergency Department.

Author

Jeong, Daun, Lee, Gun Tak, Park, Jong Eun, Shin, Tae Gun, Kim, Kyunga, Jang, Doeun, Kim, Won Young, Jo, You Hwan, Chung, Sung Phil, Beom, Jin Ho, Choi, Sung-Hyuk, Kwon, Woon Yong, Suh, Gil Joon, Ko, Byuk Sung, Han, Kap Su, Shin, Jong Hwan, Cho, Hanjin, and Hwang, Sung Yeon

Abstract

This study aimed to determine the impact of modifications in emergency department (ED) practices caused by the coronavirus disease 2019 (COVID-19) pandemic on the clinical outcomes and management of patients with septic shock. We performed a retrospective study. Patients with septic shock who presented to the ED between 1 January 2018 and 19 January 2020 were allocated to the pre-COVID-19 group, whereas those who presented between 20 January 2020 and 31 December 2020 were assigned to the post-COVID-19 group. We used propensity score matching to compare the sepsis-related interventions and clinical outcomes. The primary outcome measure was in-hospital mortality. Of the 3697 patients included, 2254 were classified as pre-COVID-19 and 1143 as post-COVID-19. A total of 1140 propensity score-matched pairings were created. Overall, the in-hospital mortality rate was 25.5%, with no statistical difference between the pre- and post-COVID-19 groups (p = 0.92). In a matched cohort, the post-COVID-19 group had delayed lactate measurement, blood culture test, and infection source control (all p < 0.05). There was no significant difference in time to antibiotics (p = 0.19) or vasopressor administration (p = 0.09) between the groups. Although sepsis-related interventions were delayed during the COVID-19 pandemic, there was no significant difference in the in-hospital mortality between the pre- and post-COVID-19 groups. [ABSTRACT FROM AUTHOR]

Published
2022
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38. Relationship Between Nighttime Emergency Department Admission and Adherence to a Sepsis Treatment Bundle

Author

You, Je Sung, primary, Park, Yoo Seok, additional, Chung, Sung Phil, additional, Lee, Hye Sun, additional, Jeon, Soyoung, additional, Kim, Won Young, additional, Shin, Tae Gun, additional, Jo, You Hwan, additional, Kang, Gu Hyun, additional, Choi, Sung Hyuk, additional, Suh, Gil Joon, additional, Ko, Byuk Sung, additional, Han, Kap Su, additional, Shin, Jong Hwan, additional, and Kong, Taeyoung, additional

Published
2021
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40. Determining whether A Low HEART Score Is Associated with Low Risk in Coronary Angiography Results: Validation of HEART Score Using Coronary Angiography Results

Author

Yoon Young Hoon, Park Jong-Hak, Lee eu sun, Park Sung Jun, Choi Sung-Hyuk, and Cho Young duck

Subjects
medicine.medical_specialty, biology, business.industry, Incidence (epidemiology), Emergency department, Chest pain, medicine.disease, Troponin, Stenosis, Internal medicine, Etiology, Cardiology, biology.protein, Medicine, Risk factor, medicine.symptom, business, Mace
Abstract

Purpose: The history, electrocardiogram, age, risk factor, and troponin (HEART) score have not yet been adopted in the emergency department (ED) in South Korea. We aimed to investigate whether patients with low HEART scores have a low risk of coronary angiography (CAG) results. Methods: Patients with chest pain with a possible cardiac etiology in the ED were included. Patients were divided into low-risk (0 – 3), intermediate-risk (4 – 6), and high-risk (7 – 9) groups according to the HEART score. We analysed the CAG results of the included patients. CAG results were divided into four grades: Grade I, > 70%; Grade II, > 50%; Grade III, 10% – 50%; and Grade IV, < 10%of stenosis. The occurrence of a major adverse cardiac event (MACE) within 28 days was also investigated. Results: The study included 787 patients, of whom 458, 262, and 67 were included in the low-risk, intermediate-risk, and high-risk groups, respectively. A total of 118 cases of MACE occurred (average: 0.15 MACE/patient). MACE incidence was lower in the low-risk HEART score group than in the intermediate-risk and high-risk groups (0.4% vs. 22.1% and 86.6%, p < 0.001). The CAG results of the admitted patients with a low-risk HEART score were as follows: Grade I, 6.1%; Grade II, 3.0%; Grade III, 27.3%; and Grade IV, 63.6%. Conclusions: Patients with a low HEART score visiting the ED in Korea had a low risk in CAG results and a low probability of developing MACE. The successful utilization of the HEART score appears to be a rational approach that may avoid unnecessary testing in chest pain patients presenting to the ED.

Published
2020

43. Impact of 1-Hour Bundle Achievement in Septic Shock

Author

Ko, Byuk Sung, primary, Choi, Sung-Hyuk, additional, Shin, Tae Gun, additional, Kim, Kyuseok, additional, Jo, You Hwan, additional, Ryoo, Seung Mok, additional, Park, Yoo Seok, additional, Kwon, Woon Yong, additional, Choi, Han Sung, additional, Chung, Sung Phil, additional, Suh, Gil Joon, additional, Kang, Hyunggoo, additional, Lim, Tae Ho, additional, Son, Donghee, additional, and Kim, Won Young, additional

Published
2021
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47. Electron temperature and plasma density in surface-discharged alternating-current plasma display panels

Author

Choi, Eun Ha, Ahn, Jeong Chull, Moon, Min Wook, Kim, Jin Goo, Choi, Myung Chul, Ryu, Choon Gon, Choi, Sung Hyuk, Cho, Tae Seung, Jung, Yoon, Cho, Guang Sup, and Uhm, Han Sup

Subjects
Alternating current, Business, Chemistry, Electronics, Electronics and electrical industries
Abstract

The electron temperature and plasma density at the lateral distance of 125 [micro]m from the center of sustaining electrode gap have been investigated by a Langmuir probe along with the high-speed discharge image in coplanar alternating current plasma display panels. The plasma density at the lateral distance of 125 [micro]m from the center of sustaining electrode gap is shown to be maximum value of 3.7 x [10.sup.11] [cm.sup.-3], whereas the electron temperature is measured to be decreased from 1.8 to 0.8 eV as the gas pressure increases from 150 to 400 torr in this experiment. It is noted that the electron temperatures measured by the Langmuir probe and high-speed image camera are in good agreement with each other within 5% error limit. Index Terms--Alternating current plasma display panels, electron temperature, Langmuir probe, plasma density.

Published
2002

48. Characteristics of diode perveance and vircator output under various anode--cathode gap distances

Author

Choi, Eun Ha, Choi, Myung Chull, Choi, Sung Hyuk, Song, Kie Back, Jung, Yoon, Seo, Yoon Ho, Shin, Hee Myung, Uhm, Han Sup, Lim, Dong Woo, Kim, Chun Ho, Lee, Jae Min, and Ahn, Jae Woon

Subjects
Diodes, Electron beams, Microwaves, Business, Chemistry, Electronics, Electronics and electrical industries
Abstract

When an electron beam is generated from a cathode, an electrode sheath plasma is also generated. Hence, the perveance of the diode is varied and changes the diode output characteristics. In our pulsed-power system 'Chundoong,' the perveance characteristics have been experimentally investigated, from which the sheath-plasma expansion speed has been measured to be about 3 cm/[micro]s inside the diode. It is shown that the sheath-plasma expansion inside the diode gives the influence on the electron-beam current density. The vircator microwave output has been shown to be sensitively dependent on the anode-cathode (A-K) gap distance. The highest microwave power occurs at the initial A-K gap distance d = 4 mm with peak power of 200 MW and a frequency of about 5.5 GHz in this experiment. Index Terms--Perveance characteristics, sheath plasma expansion, vircator microwave output.

Published
2002

49. A planar amperometric creatinine biosensor employing an insoluble oxidizing agent for removing redox-active interferences. (Articles)

Author

Shin, Jae Ho, Choi, Yong Suk, Lee, Han Jin, Choi, Sung Hyuk, Ha, Jeonghan, Yoon, In Jun, Nam, Hakhyun, and Cha, Geun Sig

Subjects
Creatinine -- Analysis, Oxidizing agents -- Analysis, Oxidation-reduction reaction -- Analysis, Chemistry
Abstract

A planar microchip-based creatinine biosensor employing an oxidizing layer (e.g., a Pb[O.sub.2] film), where interfering redox-active substances are broken (i.e., oxidized) to redox-inactive products, was developed to facilitate the microfabrication of the sensor and to provide improved, reliable determination of creatinine in physiological samples. The feasibility of using hydrophilic polyurethanes in permselective barrier membranes for creatinine biosensors and the effect of adding a silanizing agent (adhesion promoter) on the sensor performance (e.g., sensitivity, stability, and lifetime) are described. The proposed creatinine microsensor with a three-layer configuration, i.e., enzyme, protecting, and oxidizing layers, exhibits good electrochemical performance in terms of response time ([t.sub.95%] = 98 s at 100 [right arrow] 200 [micro]M creatinine change), linearity (1-1000 [micro]M, r = 0.9997), detection limit (0.8 [micro]M), and lifetime (~35 days). The creatinine biosensor devised in a differential sensing arrangement that compensates the erroneous results from creatine is considered to be suitable for assay of serum specimens.

Published
2001

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