1.Professional biobanking education in Korea based on ISO 20387
Jong Ok KIM ; Chungyeul KIM ; Sangyong SONG ; Eunah SHIN ; Ji-Sun SONG ; Mee Sook ROH ; Dong-chul KIM ; Han-Kyeom KIM ; Joon Mee KIM ; Yeong Jin CHOI
Journal of Pathology and Translational Medicine 2025;59(1):11-25
To ensure high-quality bioresources and standardize biobanks, there is an urgent need to develop and disseminate educational training programs in accordance with ISO 20387, which was developed in 2018. The standardization of biobank education programs is also required to train biobank experts. The subdivision of categories and levels of education is necessary for jobs such as operations manager (bank president), quality manager, practitioner, and administrator. Essential training includes programs tailored for beginner, intermediate, and advanced practitioners, along with customized training for operations managers. We reviewed and studied ways to develop an appropriate range of education and training opportunities for standard biobanking education and the training of experts based on KS J ISO 20387. We propose more systematic and professional biobanking training programs in accordance with ISO 20387, in addition to the certification programs of the National Biobank and the Korean Laboratory Accreditation System. We suggest various training programs appropriate to a student’s affiliation or work, such as university biobanking specialized education, short-term job training at unit biobanks, biobank research institute symposiums by the Korean Society of Pathologists, and education programs for biobankers and researchers. Through these various education programs, we expect that Korean biobanks will satisfy global standards, meet the needs of users and researchers, and contribute to the advancement of science.
2.Professional biobanking education in Korea based on ISO 20387
Jong Ok KIM ; Chungyeul KIM ; Sangyong SONG ; Eunah SHIN ; Ji-Sun SONG ; Mee Sook ROH ; Dong-chul KIM ; Han-Kyeom KIM ; Joon Mee KIM ; Yeong Jin CHOI
Journal of Pathology and Translational Medicine 2025;59(1):11-25
To ensure high-quality bioresources and standardize biobanks, there is an urgent need to develop and disseminate educational training programs in accordance with ISO 20387, which was developed in 2018. The standardization of biobank education programs is also required to train biobank experts. The subdivision of categories and levels of education is necessary for jobs such as operations manager (bank president), quality manager, practitioner, and administrator. Essential training includes programs tailored for beginner, intermediate, and advanced practitioners, along with customized training for operations managers. We reviewed and studied ways to develop an appropriate range of education and training opportunities for standard biobanking education and the training of experts based on KS J ISO 20387. We propose more systematic and professional biobanking training programs in accordance with ISO 20387, in addition to the certification programs of the National Biobank and the Korean Laboratory Accreditation System. We suggest various training programs appropriate to a student’s affiliation or work, such as university biobanking specialized education, short-term job training at unit biobanks, biobank research institute symposiums by the Korean Society of Pathologists, and education programs for biobankers and researchers. Through these various education programs, we expect that Korean biobanks will satisfy global standards, meet the needs of users and researchers, and contribute to the advancement of science.
3.Professional biobanking education in Korea based on ISO 20387
Jong Ok KIM ; Chungyeul KIM ; Sangyong SONG ; Eunah SHIN ; Ji-Sun SONG ; Mee Sook ROH ; Dong-chul KIM ; Han-Kyeom KIM ; Joon Mee KIM ; Yeong Jin CHOI
Journal of Pathology and Translational Medicine 2025;59(1):11-25
To ensure high-quality bioresources and standardize biobanks, there is an urgent need to develop and disseminate educational training programs in accordance with ISO 20387, which was developed in 2018. The standardization of biobank education programs is also required to train biobank experts. The subdivision of categories and levels of education is necessary for jobs such as operations manager (bank president), quality manager, practitioner, and administrator. Essential training includes programs tailored for beginner, intermediate, and advanced practitioners, along with customized training for operations managers. We reviewed and studied ways to develop an appropriate range of education and training opportunities for standard biobanking education and the training of experts based on KS J ISO 20387. We propose more systematic and professional biobanking training programs in accordance with ISO 20387, in addition to the certification programs of the National Biobank and the Korean Laboratory Accreditation System. We suggest various training programs appropriate to a student’s affiliation or work, such as university biobanking specialized education, short-term job training at unit biobanks, biobank research institute symposiums by the Korean Society of Pathologists, and education programs for biobankers and researchers. Through these various education programs, we expect that Korean biobanks will satisfy global standards, meet the needs of users and researchers, and contribute to the advancement of science.
4.Prevalence of Carbon Monoxide Poisoning and Hyperbaric Oxygen Therapy in Korea: Analysis of National Claims Data in 2010–2019
Eunah HAN ; Gina YU ; Hye Sun LEE ; Goeun PARK ; Sung Phil CHUNG
Journal of Korean Medical Science 2023;38(15):e125-
This study aimed to investigate the prevalence of carbon monoxide (CO) poisoning and the provision of hyperbaric oxygen therapy (HBOT) in South Korea. We used data from the Korea Health Insurance Review and Assessment service. In total, 44,361 patients with CO poisoning were identified across 10 years (2010–2019). The prevalence of CO poisoning was found to be 8.64/10,000 people, with a gradual annual increment. The highest prevalence was 11.01/10,000 individuals, among those aged 30–39 years. In 2010, HBOT was claimed from 15 hospitals, and increased to 30 hospitals in 2019. A total of 4,473 patients received HBOT in 10 years and 2,684 (60%) were treated for more than 2 hours. This study suggested that the prevalence of both CO poisoning and HBOT in Korea gradually increased over the past 10 years, and disparities in prevalence were observed by region.
5.Incidence and Risk Factors of Recurrent Anterior Uveitis in Initial Acute-Onset Vogt-Koyanagi-Harada Disease
Yeon Ju LIM ; Iksoo BYON ; Hyun Woong KIM ; Sung Who PARK ; Han Jo KWON ; EunAh KIM
Korean Journal of Ophthalmology 2023;37(4):299-306
Purpose:
We report the estimated incidence of, and risk factors for, recurrent anterior uveitis in patients with initial acute-onset Vogt-Koyanagi-Harada (VKH) disease using survival analyses.
Methods:
Patients who were diagnosed with initial acute-onset VKH disease during 2003–2022 at two university hospitals were included. Recurrent anterior uveitis was defined as the first occurrence of the granulomatous anterior uveitis with anterior chamber cells and flare of 2+ or more by the Standardization of Uveitis Nomenclature (SUN) Working Group grading scheme, after the disappearance of conspicuous uveitis and serous retinal detachment for at least 3 months, regardless of systemic or local treatment. The univariate log-rank test and multivariate Cox regression analyses were performed, including patients’ demographic characteristics, underlying diseases, presence of prodromal symptoms, duration of visual symptoms, visual acuity, slit-lamp and fundus findings, and height of serous retinal detachment. The treatment method and response to treatment were also included.
Results:
The estimated incidence was 39.3% at 10 years. Fifteen of 55 patients (27.3%) had recurrent anterior uveitis during the mean follow-up of 4.5 years. The presence of focal posterior synechiae at the diagnosis increased the risk of recurrent anterior uveitis 6.97-fold compared to the absence of synechiae (95% confidence interval [CI], 2.20–22.11; p < 0.001). Use of systemic high-dose steroid therapy more than 7 days after the development of visual symptoms resulted in a hazard ratio of 4.55 (95% CI, 1.27–16.40; p = 0.020).
Conclusions
This study reports the estimated incidence and risk factors of recurrent anterior uveitis in VKH disease from survival analyses. However, because of the retrospective nature of this study, it is hard to confirm the consistency of the medical records regarding risk factors, thus, the presence of focal posterior synechiae can be inconclusive as a risk factor. Further studies are warranted.
6.Modified Cardiovascular Sequential Organ Failure Assessment Score in Sepsis: External Validation in Intensive Care Unit Patients
Byuk Sung KO ; Seung Mok RYOO ; Eunah HAN ; Hyunglan CHANG ; Chang June YUNE ; Hui Jai LEE ; Gil Joon SUH ; Sung-Hyuk CHOI ; Sung Phil CHUNG ; Tae Ho LIM ; Won Young KIM ; Jang Won SOHN ; Mi Ae JEONG ; Sung Yeon HWANG ; Tae Gun SHIN ; Kyuseok KIM ; On behalf of Korean Shock Society
Journal of Korean Medical Science 2023;38(50):e418-
Background:
There is a need to update the cardiovascular (CV) Sequential Organ Failure Assessment (SOFA) score to reflect the current practice in sepsis. We previously proposed the modified CV SOFA score from data on blood pressure, norepinephrine equivalent dose, and lactate as gathered from emergency departments. In this study, we externally validated the modified CV SOFA score in multicenter intensive care unit (ICU) patients.
Methods:
A multicenter retrospective observational study was conducted on ICU patients at six hospitals in Korea. We included adult patients with sepsis who were admitted to ICUs. We compared the prognostic performance of the modified CV/total SOFA score and the original CV/total SOFA score in predicting 28-day mortality. Discrimination and calibration were evaluated using the area under the receiver operating characteristic curve (AUROC) and the calibration curve, respectively.
Results:
We analyzed 1,015 ICU patients with sepsis. In overall patients, the 28-day mortality rate was 31.2%. The predictive validity of the modified CV SOFA (AUROC, 0.712; 95% confidence interval [CI], 0.677–0.746; P < 0.001) was significantly higher than that of the original CV SOFA (AUROC, 0.644; 95% CI, 0.611–0.677). The predictive validity of modified total SOFA score for 28-day mortality was significantly higher than that of the original total SOFA (AUROC, 0.747 vs. 0.730; 95% CI, 0.715–0.779; P = 0.002). The calibration curve of the original CV SOFA for 28-day mortality showed poor calibration. In contrast, the calibration curve of the modified CV SOFA for 28-day mortality showed good calibration.
Conclusion
In patients with sepsis in the ICU, the modified SOFA score performed better than the original SOFA score in predicting 28-day mortality.
7.Demographic characteristics of patients admitted to the emergency department for intoxication and a time series analysis during the COVID-19 period
Bongmin SON ; Nayoon KANG ; Eunah HAN ; Gina YU ; Junho CHO ; Jaiwoog KO ; Taeyoung KONG ; Sung Phil CHUNG ; Minhong CHOA
Journal of The Korean Society of Clinical Toxicology 2023;21(2):92-107
Purpose:
This study investigated the characteristics and treatment outcomes of patients who visited the emergency department due to intoxication and analyzed the impact of the coronavirus disease 2019 (COVID-19) pandemic on their visits.
Methods:
A retrospective study was conducted using data from the National Emergency Department Information System (NEDIS) on patients who visited the emergency department due to intoxication between January 2014 and December 2020. In total, 277,791 patients were included in the study, and their demographic and clinical data were analyzed. A model was created from 2014 to 2019 and applied to 2020 (i.e., during the COVID-19 pandemic) to conduct a time series analysis distinguishing between unexpected accidents and suicide/self-harm among patients who visited the emergency department.
Results:
The most common reason for visiting the emergency department was unintentional accidents (48.5%), followed by self-harm/suicide attempts (43.8%). Unexpected accident patients and self-harm/suicide patients showed statistically significant differences in terms of sex, age group, hospitalization rate, and mortality rate. The time series analysis showed a decrease in patients with unexpected accidents during the COVID-19 pandemic, but no change in patients with suicide/self-harm.
Conclusion
Depending on the intentionality of the intoxication, significant differences were found in the age group, the substance of intoxication, and the mortality rate. Therefore, future analyses of patients with intoxication should be stratified according to intentionality. In addition, the time series analysis of intentional self-harm/suicide did not show a decrease in 2010 in the number of patients, whereas a decrease was found for unintentional accidents.
8.Effect of Prehospital Epinephrine on Out-of-Hospital Cardiac Arrest Outcomes:A Propensity Score-Matched Analysis
Eunah HAN ; Taeyoung KONG ; Je Sung YOU ; Incheol PARK ; Goeun PARK ; Sujee LEE ; Sung Phil CHUNG ; Korean Cardiac Arrest Research Consortium (KoCARC) Investigators
Yonsei Medical Journal 2022;63(2):187-194
Purpose:
A pilot project using epinephrine at the scene under medical control is currently underway in Korea. This study aimed to determine whether prehospital epinephrine administration is associated with improved survival and neurological outcomes in out-of-hospital cardiac arrest (OHCA) patients who received epinephrine during cardiopulmonary resuscitation (CPR) in the emergency department.
Materials and Methods:
This retrospective observational study used a nationwide multicenter OHCA registry. Patients were classified into two groups according to whether they received epinephrine at the scene or not. The associations between prehospital epinephrine use and outcomes were assessed using propensity score (PS)-matched analysis. Multivariable logistic regression analysis was performed using PS matching. The same analysis was repeated for the subgroup of patients with non-shockable rhythm.
Results:
PS matching was performed for 1084 patients in each group. Survival to discharge was significantly decreased in the patients who received prehospital epinephrine [odds ratio (OR) 0.415, 95% confidence interval (CI) 0.250–0.670, p<0.001]. However, no statistical significance was observed for good neurological outcome (OR 0.548, 95% CI 0.258–1.123, p=0.105). For the patient subgroup with non-shockable rhythm, prehospital epinephrine was also associated with lower survival to discharge (OR 0.514, 95% CI 0.306–0.844, p=0.010), but not with neurological outcome (OR 0.709, 95% CI 0.323–1.529, p=0.382).
Conclusion
Prehospital epinephrine administration was associated with decreased survival rates in OHCA patients but not statistically associated with neurological outcome in this PS-matched analysis. Further research is required to investigate the reason for the detrimental effect of epinephrine administered at the scene.
9.Relationship of computed tomography and emergency department revisits in febrile elderly patients
Minhyung NOH ; Junho CHO ; Jinho BEOM ; Eunah HAN
Journal of the Korean Society of Emergency Medicine 2021;32(4):328-336
Objective:
The number of elderly people visiting emergency rooms is rapidly increasing. Fever is one of the common complaints of patients who come to the emergency room, and it is often difficult to determine its cause in elderly patients only through basic examinations and tests. This study sought to verify the relationship between computed tomography and emergency department revisits of febrile elderly patients. Methods: This study is a retrospective medical record analysis study. Patients who came to our emergency room between September 2016 and September 2019, aged 65 years or more, and with body temperature higher than 37.8°C at the time of presentation or during their stay in the emergency room were enrolled. Patient age, sex, vital signs at triage, laboratory tests, whether computed tomography (CT) was conducted or not were analyzed. The primary outcome was set as revisits to the emergency department within 72 hours after discharge, due to any reason.
Results:
Three thousand two hundred and forty patients were enrolled and of these 289 patients revisited the emergency department (ED). In the revisit (-) group, CT was performed on 44.09% of patients and 54.67% of patients in the revisit (+) group thus showing a statically significant difference.
Conclusion
This study showed that in elderly patients with fever presenting to the ED, patients who underwent a CT had 1.558 higher odds of revisit to the ED compared to patients who did not undergo a CT. From this result, it should be considered that the decision to discharge the febrile elderly patients based on the results of CT examination may not be appropriate.
10.Causative Substance and Time of Mortality Presented to Emergency Department Following Acute Poisoning:2014-2018 National Emergency Department Information System (NEDIS)
Hyeonjae LEE ; Minhong CHOA ; Eunah HAN ; Dong Ryul KO ; Jaiwoog KO ; Taeyoung KONG ; Junho CHO ; Sung Phil CHUNG
Journal of The Korean Society of Clinical Toxicology 2021;19(2):65-71
Purpose:
The purpose of this study was to investigate the cause of acute fatal poisoning and the time of death by analyzing the National Emergency Department Information System (NEDIS) of South Korea.
Methods:
The NEDIS data from 2014 to 2018 excluding non-medical visits were used for this study. The patients with acute poisoning were extracted using diagnostic codes. The toxic substances were classified into pharmaceuticals, pesticides, gases, artificial poisonous substances, and natural toxic substances. Patients were classified according to the time of death, place of death, and region. In each case, the most causative substances of poisoning were identified.
Results:
There were 380,531 patients including poisoning-related diagnoses, of which 4,148 (1.1%) died, and the WHO age-standardized mortality rate was 4.8 per 100,000. Analysis of 2,702 death patients whose primary diagnosis was acute poisoning, the most common cause of poisoning death was pesticides (62%), followed by therapeutic drugs, gas, and artificial toxic substances. Herbicides were the most common pesticides at 64.5%. The proportion of mortality by time, hyperacute (<6 h) 27.9%, acute (6-24 h) 32.6%, subacute (1-7 d) 29.7%, and delayed period (>7 d) were 9.8%.
Conclusion
This study suggests that the most common cause of poisoning death was pesticides, and 60% of deaths occurred within 24 hours. The 71% of mortality from pesticides occurred within 6-24 hours, but mortality from gas was mostly within 6 hours. According to the geographic region, the primary cause of poisoning death was varied to pesticides or pharmaceuticals.

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