Effect of norepinephrine initiation timing on mortality in septic shock: a multicenter cohort study Jung Won Choi, Tae Gun Shin, Seung Jin Maeng, Sung Yeon Hwang, Sang-Min Kim, Won Young Kim, Kyuseok Kim, Sung-Joon Park, Sung-Hyuk Choi, Sejoong Ahn, Woon Yong Kwon, Taeyoung Kong, Sung Phil Chung, Byuk Sung Ko, Tae Ho Lim BMC Anesthesiology.2026;[Epub] CrossRef
Age–Comorbidity Interactions and Clinical Outcomes in Septic Shock: An Emergency Department-Based Multicenter Cohort Study Seung Jin Maeng, Jong Eun Park, Gun Tak Lee, Sung Yeon Hwang, Minha Kim, Sejin Heo, Tae Ho Lim, Sung Phil Chung, Sung-Hyuk Choi, Tae Gun Shin Healthcare.2026; 14(6): 722. CrossRef
Role of Aspartate in Immune Response and Mortality in a Polymicrobial Sepsis Model: Insights from Metabolomics and Transcriptomics Min Ji Lee, Bo Mi Kim, Se Rin Choi, Seongmin Kim, Ye Jin Park, Yun-Seok Kim, Kihwan Choi, Chang June Yune, Tae Nyoung Chung, Jinkun Bae, Nam Joo Yun, Jiwon Jeon, Han A Reum Lee, Jiewan Kim, Dong-Hyuk Kim, Ji Heon Noh, Chungoo Park, Sangchun Choi, Choong H Cells.2026; 15(6): 513. CrossRef
Epidemiology of cardiac arrest and acute myocardial infarction in emergency departments in Korea, 2020–2024: a report using the National Emergency Department Information System (NEDIS) database Sejoong Ahn, Jung Eon Kim, Sung-keun Ko, Eunsil Ko Clinical and Experimental Emergency Medicine.2026; 13(1): 90. CrossRef
Artificial intelligence-driven cluster analysis for identifying clinical phenotypes in suspected sepsis patients in the emergency department Daun Jeong, Jong Rul Park, Seung Jin Maeng, Jung Won Choi, Gun Tak Lee, Sung Yeon Hwang, Chulhong Kim, Jong Eun Park, Tae Gun Shin BMC Emergency Medicine.2026;[Epub] CrossRef
Early vasopressin administration in septic shock: A systematic review, meta-analysis, and multicenter retrospective observational study Chiwon Ahn, Gun Tak Lee, Jae Hwan Kim, Sejoong Ahn, Sung Yeon Hwang, Sang-Min Kim, Won Young Kim, Sung-Joon Park, Sung-Hyuk Choi, Woon Yong Kwon, Taeyoung Kong, Sung Phil Chung, Byuk Sung Ko, Kyung Hun Yoo, Tae Ho Lim, Tae Gun Shin, Kyuseok Kim European Journal of Internal Medicine.2026; 151: 106933. CrossRef
Steroid administration, timing, and dose in patients with septic shock in the emergency department: retrospective analysis of a multicenter prospective cohort study Sejoong Ahn, Chiwon Ahn, Sung Yeon Hwang, Sang-Min Kim, Jong-Hak Park, Won Young Kim, Sung-Joon Park, Sung-Hyuk Choi, Woon Yong Kwon, Taeyoung Kong, Sung Phil Chung, Byuk Sung Ko, Tae Ho Lim, Tae Gun Shin, Kyuseok Kim, Hyo Jin Bang, Han Sung Choi, Juhyun Scientific Reports.2026;[Epub] CrossRef
Validation of the updated sequential organ failure assessment (SOFA)-2 score in emergency department septic shock Sejoong Ahn, Sang-Min Kim, Jong-Hak Park, Guntak Lee, Hyunglan Chang, Won Young Kim, Tae Gun Shin, Kyuseok Kim Journal of Intensive Care.2026;[Epub] CrossRef
Mitochondrial Transplantation Restores Immune Cell Metabolism in Sepsis: A Metabolomics Study Tae Nyoung Chung, Se Rin Choi, Su-Hyun Kim, Choong Hwan Lee, Kyuseok Kim International Journal of Molecular Sciences.2025; 27(1): 332. CrossRef
Performance Evaluation of the 2020 European Society of Cardiology 0-hour/1-hour Algorithm Using High-sensitivity Cardiac Troponin I for Non-ST-segment Elevation Acute Coronary Syndrome and Mortality Assessment Based on 1-year Real-world Data Changhee Ha, Yeon Jae Lee, Jong Do Seo, Hanah Kim, Hee-Won Moon, Mina Hur, Young Hwan Lee, Sang O Park, Kyeong Ryong Lee, Hyun-Joong Kim, Yeo-Min Yun Annals of Laboratory Medicine.2026; 46(1): 52. CrossRef
Association between emergency department crowding and mortality: a nationwide analysis stratified by emergency department levels: a retrospective cohort study Minha Kim, Jin-Hee Lee, Minyoung Choi, Doyeop Kim, Hanseok Chang, Sejin Heo, Seung Jin Maeng, Tae Gun Shin, Eunsil Ko, Hansol Chang BMC Emergency Medicine.2026;[Epub] CrossRef
Brecha entre demanda asistencial y disponibilidad médica en servicio de Urgencias Hugo Ariel Cabrera Britez Revista Científica de Salud "Ciensa".2026; : 1. CrossRef
Pediatric emergency care: Determinants and systematic barriers Pankaj Soni, Amit Agrawal World Journal of Clinical Pediatrics.2025;[Epub] CrossRef
Beyond Annual Averages: Rethinking Metrics For Emergency Department Crowding And Capacity Planning JeongWook Lim, Jisun Lee, Song-Hee Kim, Taehui Kim, Hyo Jin Kim, Mi Gyeong Yoo, Chun Song Youn, Yun-Suk Pak The Journal of Emergency Medicine.2025; 79: 591. CrossRef
Enhancing patient participation in emergency department through patient-friendly clinical notes generated by large language models Sung-In Kim, Joonyoung Park, Taewan Kim, Woosuk Seo, Taerim Kim, Won Chul Cha, Hwajung Hong Scientific Reports.2025;[Epub] CrossRef
Objective This study used a nationwide database to identify and analyze factors that influence emergency department (ED) length of stay (LOS) and improve the efficiency of emergency care. Methods This retrospective study analyzed data from the National Emergency Department Information System (NEDIS) database in Korea: 25,578,263 ED visits from 2018 to 2022. Patient demographics, clinical characteristics, and ED operational variables were examined. Univariate and multivariate logistic regression analyses were used to assess the associations between the variables and prolonged ED LOS, defined as 6 hours or more. Results Among the 25,578,263 patients, the median ED LOS was 2.1 hours (interquartile range, 1.050–3.830 hours), with 12.6% experiencing a prolonged ED LOS. Elderly patients (aged ≥65 years) were significantly more likely than younger patients to experience prolonged ED LOS (adjusted odds ratio [aOR], 1.415; 95% confidence interval [CI]: 1.411–1.419). Patients transferred from other hospitals (aOR, 1.469; 95% CI, 1.463–1.474) and those arriving by emergency medical services (aOR, 1.093; 95% CI, 1.077–1.108) also had high odds of prolonged LOS. Conversely, pediatric patients had a low likelihood of extended stay (aOR, 0.682; 95% CI, 0.678–0.686). Severe illness, including sepsis (aOR, 1.324; 95% CI, 1.311–1.340) and COVID-19 infection (aOR, 1.413; 95% CI, 1.399–1.427), was strongly associated with prolonged LOS. Conclusion Prolonged ED LOS is influenced by a combination of patient demographics, clinical severity, and systemic factors. Targeted interventions for older adults, severe illness, and operational inefficiencies such as hospital transfers are essential for reducing ED LOS and improving overall emergency care delivery.
Citations
Citations to this article as recorded by
Bridging women's emergency and primary healthcare: Factors associated with prolonged obstetrics and gynecology emergency room stay in a Saudi university hospital Nouf A. AlShamlan, Reem S. AlOmar, Nourah H. Al Qahtani, Fatimah S. Badghaish, Rehab F. Alghamdi, Omar Y. Almukhadhib, Nurah Salham Alnuaimi, Amani M. AlQarni, Adam F. Aldhawyan, Amani S. AlOtaibi, Abdullah H. Alreedy International Journal of Gynecology & Obstetrics.2026; 173(1): 239. CrossRef
Prevalence and associated factors of prolonged emergency department length of stay among adults patients attending University Hospital, South Ethiopia: a cross-sectional study Twedrose Fentahun Mamo, Nigus Habtamu Zenebe, Ytbarek Jemberie Getnet, Paulos Mada Mazga, Sorressa Letta Desisa, Hindu Argeta Hailemariam, Wondimagegn Genaneh Shiferaw International Journal of Africa Nursing Sciences.2026; 24: 100958. CrossRef
Prognostic Performance of the Korean Triage and Acuity Scale Combined with the National Early Warning Score for Predicting Mortality and ICU Admission at Emergency Department Triage: A Retrospective Observational Study Jungtaek Park, Sang Hoon Oh, Ae Kyung Gong, Jee Yong Lim, Sun Hee Woo, Won Jung Jeong, Ji Hoon Kim, In Soo Kim, Soo Hyun Kim Diagnostics.2026; 16(2): 345. CrossRef
Determinants of Emergency Department Length of Stay and the Mediation Effect of Disposition Among Injury Patients in South Korea: A Nationwide Retrospective Study Min-Seok Choi, Su-il Kim, Yun-Deok Jang Healthcare.2026; 14(4): 469. CrossRef
Characteristics and clinical outcomes of cancer patients presenting to the emergency department in Korea: a retrospective descriptive study Hyun Bin Kim, Eun Ji Seo Journal of Korean Biological Nursing Science.2026; 28(1): 206. CrossRef
Association between emergency department crowding and mortality: a nationwide analysis stratified by emergency department levels: a retrospective cohort study Minha Kim, Jin-Hee Lee, Minyoung Choi, Doyeop Kim, Hanseok Chang, Sejin Heo, Seung Jin Maeng, Tae Gun Shin, Eunsil Ko, Hansol Chang BMC Emergency Medicine.2026;[Epub] CrossRef
Operational Challenges and Management Strategies Affecting Emergency Department Length of Stay: A Literature Review Vindy Vanessa Wennas Indonesian Journal of Innovation Multidisipliner Research.2026; 4(2): 5167. CrossRef
Patient and emergency department factors influencing surgery timing in patients with hip fracture Aejin Sung, Dong Hoon Kim, Dong-Hee Kim, Jin Hee Jeong Scientific Reports.2025;[Epub] CrossRef
Epidemiological trends and features of pediatric hand and elbow fractures in emergency department visits in Korea: a nationwide population-based study Sang Beom Ma, Joonha Lee Archives of Hand and Microsurgery.2025; 30(4): 212. CrossRef
Determinants of Emergency Department Length of Stay Using the Time Frame Emergency Care Model: A Retrospective Study Lydia Maryendi Sompie, Retno Lestari, Suryanto Suryanto Journal of Applied Nursing and Health.2025; 7(3): 820. CrossRef
Epidemiological trends in emergency department visits by age group: a report from the National Emergency Department Information System (NEDIS) of Korea, 2020–2024 Hang A Park, Taehui Kim, Hyo Jin Kim, So-hyun Han Clinical and Experimental Emergency Medicine.2025; 12(4): 405. CrossRef
Objective Emergency care systems worldwide have been significantly affected by the COVID-19 pandemic. This study investigated the trend of emergency department (ED) visits for emergency care–sensitive conditions (ECSCs) in Korea before and during the pandemic. Methods We performed a longitudinal study using the national ED database in Korea from January 2019 to December 2021. We calculated the number and incidence rate of visits for ECSCs per 100,000 ED visits, and the incidence rate ratio of 2021 relative to the value in 2019. The selected ECSCs were intracranial injury, ischemic heart disease, stroke, and cardiac arrest. Results The number of ED visits for all causes decreased by about 23% during the pandemic. The number of ED visits for intracranial injuries decreased from 166,695 in 2019 to 133,226 in 2020 and then increased to 145,165 in 2021. The number of ED visits for ischemic heart disease and stroke decreased in 2020 but increased to 2019 levels in 2021. In contrast, the number of ED visits for cardiac arrest increased from 23,903 in 2019 to 24,344 in 2020 and to 27,027 in 2021. The incidence rate and incidence rate ratio of these four ECSCs increased from 2019 to 2021, suggesting increasing relative proportions of ECSCs in total ED visits. Conclusion During the COVID-19 pandemic, the number of cardiac arrests seen in the EDs increased, but that of other ECSCs decreased. The decrease in ED visits for ECSCs was not as pronounced as the decrease in ED visits for all causes during the pandemic. Further studies are needed to determine clinical outcomes in patients with ECSC during the pandemic.
Citations
Citations to this article as recorded by
Impact of COVID-19 on testicular torsion: A single-center retrospective study from a children’s hospital Kota Fujimoto, Beom Yong Rho, Si Wook Lee, Jae Ok Baek, Yong Seung Lee, Sang Woon Kim Investigative and Clinical Urology.2026; 67(1): 72. CrossRef
Association between maternal risk factors and preterm birth in South Korea: a nationwide cohort study of 795,715 pregnancies Jaewoo Cha BMC Pregnancy and Childbirth.2026;[Epub] CrossRef
Changes in the Emergency Department Visits Among the Older Adults With Dementia Before, and After the Nationwide Social Distancing Measures: An Interrupted Time Series Analysis Jeongmin Moon, Kyung‐Shin Lee, Ho Kyung Sung, Seonji Kim International Journal of Geriatric Psychiatry.2025;[Epub] CrossRef
Impact of concomitant injuries on clinical outcomes in patients with isolated versus non-isolated traumatic brain injury Kyung Won Park, Sung Wook Song, Woo Jeong Kim, Jeong Ho Kang, Ji Hwan Bu, Sung Kgun Lee, Seo Young Ko, Soo Hoon Lee, Chang Bae Park, Jin Gu Lee, Jong Yeon Kang, Jaeyoon Ha, Jiwon Kim Clinical and Experimental Emergency Medicine.2025; 12(4): 358. CrossRef
Objective This study analyzed trends in emergency department (ED) visits in South Korea using the National Emergency Department Information System (NEDIS) data from 2018 to 2022.
Methods This was a retrospective observational study using data from the NEDIS database from 2018 to 2022. Age- and sex-standardized ED visits per 100,000 population, as well as age- and sex-standardized rates for mortality, admission, and transfer, were calculated.
Results The standardized ED visits per 100,000 population was approximately 20,000 from 2018 to 2019 and decreased to about 18,000 in 2022. The standardized mortality rate ranged from 1.4% to 1.7%. The admission rate (18.4%–19.4%) and the transfer rates (1.6%–1.8%) were similar during the study period. Approximately 5.5% of patients were triaged as Korean Triage and Acuity Scale score 1 or 2. About 91% of patients visited the ED directly and 21.7% of patients visited the ED with an ambulance. The ED length of stay was less than 6 hours in 90.3% of patients and the ED mortality rate was 0.6%. Acute gastroenteritis was the most common diagnosis. Respiratory virus symptoms, such as fever and sore throat, were also common chief complaints.
Conclusion ED visits decreased during the 5-year period, while admission, transfer, and death rates remained relatively stable.
Citations
Citations to this article as recorded by
Determinants of Emergency Department Length of Stay and the Mediation Effect of Disposition Among Injury Patients in South Korea: A Nationwide Retrospective Study Min-Seok Choi, Su-il Kim, Yun-Deok Jang Healthcare.2026; 14(4): 469. CrossRef
Temporal Trends and Clinical Implications of Cardiac Troponin Testing in Emergency Departments: A Multicenter Retrospective Study Jong-Ho Kim, Youngho Seo, Seung Yong Shin, Eung Ju Kim, Kap Su Han, Hyung Joon Joo Journal of Clinical Medicine.2026; 15(6): 2426. CrossRef
Impact of the Interaction Between Injury Mechanism and Intent on ICISS-Based Severity and Emergency Department Disposition: A Retrospective Study Ji-Hun Kang, Min-Seok Choi, Eun-Kyung Jung, Sung-Soo Choi, Seong-Ju Kim, Yun-Deok Jang Healthcare.2026; 14(8): 1036. CrossRef
Association between emergency department crowding and mortality: a nationwide analysis stratified by emergency department levels: a retrospective cohort study Minha Kim, Jin-Hee Lee, Minyoung Choi, Doyeop Kim, Hanseok Chang, Sejin Heo, Seung Jin Maeng, Tae Gun Shin, Eunsil Ko, Hansol Chang BMC Emergency Medicine.2026;[Epub] CrossRef
Emergency medical system utilization among patients with end-stage kidney disease during the COVID-19 pandemic: a retrospective cohort study in South Korea Kyung Won Kim, Hyunjin Cho, Hye Eun Yoon, Young-Ki Lee, Kyung Don Yoo, AJin Cho Frontiers in Public Health.2026;[Epub] CrossRef
Impact of health insurance status on hospitalization and mortality from emergency department admission in patients with end-stage kidney disease: a Korean nationwide registry analysis AJin Cho, Kyung Don Yoo, Hye Eun Yoon, Seon A Jeong, Wookjin Choi, Dai Hai Choi, Jungeon Kim, Hayne Cho Park, Young-Ki Lee Kidney Research and Clinical Practice.2026; 45(3): 383. CrossRef
Machine Learning–Based Prediction Model for 30-Day Emergency Department Revisits in a Medically Underserved Tertiary Hospital: Formative Retrospective Cohort Study Kyongmin Sun JMIR Formative Research.2026; 10: e87289. CrossRef
Over-the-counter drug poisoning among pediatric and adolescent patients presenting to emergency departments: a nationwide analysis of the COVID-19 impact Sejin Heo, Kwang Yul Jung Clinical Toxicology.2026; : 1. CrossRef
Epidemiologic trends and characteristics of cancer-related emergency department visits of older patients living with cancer in South Korea Jung-In Ko, Sun Young Lee, Shin Hye Yoo, Kyae Hyung Kim, Belong Cho Scientific Reports.2025;[Epub] CrossRef
Incidence and characteristics of self-harm during the 3-year period of COVID-19-related social distancing in the Republic of Korea Kwang Yul Jung, Sejin Heo, Taerim Kim, Won Chul Cha Injury Prevention.2025; 31(4): 291. CrossRef
Epidemiology of sepsis in emergency departments: insights from the National Emergency Department Information System (NEDIS) database in Korea, 2018–2022 Tae Gun Shin, Eunsil Ko, So-hyun Han, Taehui Kim, Dai Hai Choi Clinical and Experimental Emergency Medicine.2025; 12(3): 185. CrossRef
From prediction to action: a retrospective observational study on the real-world implementation of Critical Interventions (CrIs), an AI-based clinical decision support system changing clinical behavior in the emergency department Hansol Chang, Jae Yong Yu, Hyunjung Park, Yee Jun Song, Sejin Heo, Jong Eun Park, Gun Tak Lee, Se Uk Lee, Taerim Kim, Hee Yoon, Sung Yeon Hwang, Won Chul Cha BMC Medical Informatics and Decision Making.2025;[Epub] CrossRef
Transfer versus direct-visit patients in medically underserved emergency departments: a retrospective cohort study Kyongmin Sun, Youjin Lee, Jungsil Lee BMC Emergency Medicine.2025;[Epub] CrossRef
Characteristics of patients repeatedly presenting to the emergency department for self-harm injuries: a 6-year retrospective study Kwang Yul Jung, Sejin Heo, Taerim Kim, Won Chul Cha Injury Epidemiology.2025;[Epub] CrossRef
Epidemiological trends in emergency department visits by age group: a report from the National Emergency Department Information System (NEDIS) of Korea, 2020–2024 Hang A Park, Taehui Kim, Hyo Jin Kim, So-hyun Han Clinical and Experimental Emergency Medicine.2025; 12(4): 405. CrossRef
Effect of Inter-Hospital Transfer on Mortality in Patients Admitted through the Emergency Department Jei-Joon Song, Si-Jin Lee, Ju-Hyun Song, Sung-Woo Lee, Su-Jin Kim, Kap-Su Han Journal of Clinical Medicine.2024; 13(16): 4944. CrossRef
Characteristics of consecutive versus non-consecutive frequent emergency medical services transport to a single emergency department Sun Hyu Kim, Hyeji Lee, Fadwa Alhalaiqa PLOS ONE.2024; 19(5): e0301337. CrossRef
Comparison of Early and Late Norepinephrine Administration in Patients With Septic Shock Chiwon Ahn, Gina Yu, Tae Gun Shin, Youngsuk Cho, Sunghoon Park, Gee Young Suh CHEST.2024; 166(6): 1417. CrossRef
An update of the severe trauma scoring system using the Korean National Emergency Department Information System (NEDIS) database Hyo Jin Kim, Young Sun Ro, Taehui Kim, So-hyun Han, Yoonsung Kim, Jungeon Kim, Won Pyo Hong, Eunsil Ko, Seong Jung Kim The American Journal of Emergency Medicine.2024; 86: 62. CrossRef
Factors that predict emergency department length of stay in analysis of national data Minha Kim, Sujeong Lee, Minyoung Choi, Doyeop Kim, Junsang Yoo, Tae Gun Shin, Jin-Hee Lee, Seongjung Kim, Hansol Chang, Eunsil Ko Clinical and Experimental Emergency Medicine.2024; 12(1): 35. CrossRef
Objective As of 2018, approximately 1.2 million pediatric patients visited emergency departments (EDs) in Korea, showing a steady increase. Given the distinct differences between children and adults, it is vital to examine the epidemiological characteristics of pediatric patients visiting the ED.
Methods This study retrospectively analyzed the ED use patterns of pediatric patients <18 years old in Korea from January 1, 2018, to December 31, 2022, using data from the National Emergency Department Information System (NEDIS).
Results Most pediatric ED patients were boys, with an average age of 6.6±5.3 years. Patients younger than 1 year and those in critical condition had longer ED stays and more frequently required hospital admission and used the 119-ambulance service. The primary symptom was fever, and the most common discharge diagnosis was gastroenteritis. Following the declaration of the COVID-19 pandemic in 2020, ED visits decreased by 49%. Meanwhile, there was an increase in in-hospital mortality rate/age- and sex-standardized mortality rate per 100,000 ED visits, Admission and transfer rates remained similar between before and after the start of the pandemic.
Conclusion Through this analysis, we identified the characteristics of pediatric patients visiting EDs in Korea. We observed a sharp decline in ED visits after the start of the COVID-19 pandemic. From there, ED visits slowly increased but remained below prepandemic levels for 3 years. This research will serve as a foundational resource for appropriately allocating and preparing pediatric ED resources.
Citations
Citations to this article as recorded by
Nationwide Age-Specific Changes in EMS-Transported Emergency Department Visits in Korea During the Pre-COVID-19 and Post-COVID-19 Periods Min-Jung Kim, Jae-Hyun Kwon, Soo Hyun Park, Young-Hoon Byun, Ho-Young Song, Jin Hee Kim, Sung-Ha Kim, So-Hyun Paek Journal of Clinical Medicine.2026; 15(7): 2552. CrossRef
Facility type as the primary determinant of hospitalization in pediatric foreign body ingestion: a nationwide emergency department-based analysis Yujin Lee, Dong-Uk Kim Pediatric Emergency Medicine Journal.2026; 13(3): 93. CrossRef
Patient representation in RNA signature studies for detecting and predicting the outcomes of febrile illnesses: a scoping review Hannah N. Kozlowski, Sam Brophy-Williams, Costanza Di Chiara, Ryan S. Huang, Katie Lee, Nikki Wong, Joelle Peresin, Rebecca Womersley, Shaun K. Morris BMC Infectious Diseases.2026;[Epub] CrossRef
A local operational definition of pediatric emergency department overcrowding: an 8-year retrospective observational cohort study from the OACS+ project Johanna T. Meßner, Dennis Freuer, Christine Meisinger, Birgit Prodinger, Bin Zhou, Melanie L. Conrad, Anne Ch. Garbe, Anna-Lena Behr, Anna Juraschek, Fabian B. Fahlbusch, Florian Weber Frontiers in Pediatrics.2026;[Epub] CrossRef
Characteristics and management of pediatric patients with a genetic disorder and malformations in a pediatric emergency department Takaaki Mori, Kenta Sugiura, Osamu Nomura, Hiroshi Futagawa, Hiroshi Yoshihashi Pediatrics International.2025;[Epub] CrossRef
Examining Pediatric Emergency Utilization Trends Before and After the COVID-19 Pandemic: An Eight-Year Cohort Study from a South Korean Tertiary Center Hae Jeong Lee, Yechan Kyung, Dong Wan Kang, Mi Hyeon Jin, Seoheui Choi, Jun Hwa Lee Children.2025; 12(9): 1232. CrossRef
Desempeño del triage en un servicio de urgencias pediátricas de un hospital regional en México
Revista Mexicana de Pediatría.2025; 92(4): 139. CrossRef
Changes in Antimicrobial Resistance in Pediatric Urinary Pathogens Before, During, and After the COVID-19 Pandemic Seon Hee Lim, Kyo Jin Jo, Shin Yun Byun, Yun-Jin Lee, Su Eun Park, Ji Yeon Song Antibiotics.2025; 14(12): 1243. CrossRef
COVID-19, Influenza, and RSV in Children and Adults: A Clinical Comparative Study of 12,000 Cases Jae-Hyun Kwon, So-Hyun Paek, Soo-Hyun Park, Min-Jung Kim, Young-Hoon Byun, Ho-Young Song Journal of Clinical Medicine.2024; 13(6): 1702. CrossRef
A Nationwide Study on Emergency Department Utilization among Pediatric Patients in Korea: A Special Focus on Pediatric Emergency Medical Centers Hyun Noh Soonchunhyang Medical Science.2024; 30(1): 13. CrossRef
Hasn’t Child Abuse Been Overlooked? An Evaluation of Abused Children Who Visited the Emergency Department with Sentinel Injuries Han Bit Kim, Hyun Noh Children.2024; 11(11): 1389. CrossRef
Objective With general aging of the population, emergency department (ED) utilization by elderly patients is increasing. In this study, we analyzed data on ED visits of patients aged 65 years and older in Korea.
Methods The study is a retrospective analysis of National Emergency Department Information System (NEDIS) data from 2018–2022, focusing on patients aged 65 years and older who visited EDs across Korea. ED utilization data were analyzed using Korean Triage and Acuity Scale (KTAS) scores. The patients were divided into three age groups, and common chief complaints and diagnoses were identified. Age- and sex-standardized ED visits per 100,000 population and outcomes were also analyzed.
Results During the study period, there was a total of 9,803,065 elderly patient ED visits. The mean patient age was 76.4±7.6 years, and 47.6% were men. The ED mortality rate and in-hospital mortality rate were 1.8% and 4.6%, respectively. The KTAS scores 1–2 group accounted for 11.0% of patients, KTAS score 3 group for 42.5%, KTAS scores 4–5 group for 37.2%, and KTAS score unknown group for 9.4%. When patients were categorized into three age groups, the oldest group exhibited the highest rates of KTAS score 1, severe illness diagnoses, and mortality. The most frequently reported chief complaint was abdominal pain, and the most common diagnosis was light headedness. When analyzing the data by year, the COVID-19 outbreak had a discernible impact on ED visits and clinical outcomes.
Conclusion Over the past 5 years, ED visits for elderly patients have averaged 26,050 per 100,000 population per year, with a temporary decline during the COVID-19 pandemic and a subsequent upward trend.
Citations
Citations to this article as recorded by
The Prognostic Value of the Clinical Frailty Scale in Critically Ill Older Adult Patients in the Emergency Department Young Woo Um, You Hwan Jo, Jae Hyuk Lee, Inwon Park, Ji Eun Hwang, Seung Hyun Kang, Narae Kim The Journal of Emergency Medicine.2026; 80: 33. CrossRef
Interventions according to patient severity in an emergency department based short stay unit: Nursing intervention classification and social network analysis Dain Lee, Soyoung Kim, Jaehoon Kim, Joohee Chung, Sunhee Yun, Yeonhee Lee, Il Hyun Lee, Hanjong Park International Emergency Nursing.2026; 84: 101730. CrossRef
Emergency Nurses’ Experiences of Triaging Geriatric Trauma Patients: A Qualitative Study Yunli Yang, Yanan Liu, Yihua Ding, Yuxuan Qin, Wei Yu, Xiang Li, Huarong Wang, Yanhong Zhang, Shuyan Wang Journal of Emergency Nursing.2026; 52(4): 949. CrossRef
Determinants of Emergency Department Length of Stay and the Mediation Effect of Disposition Among Injury Patients in South Korea: A Nationwide Retrospective Study Min-Seok Choi, Su-il Kim, Yun-Deok Jang Healthcare.2026; 14(4): 469. CrossRef
Comparison of prognosis in emergency department elderly septic shock patients with initial hypotension versus delayed hypotension Chaeeun Lee, Gil Joon Suh, Sung-Hyuk Choi, Sung Phil Chung, Won Young Kim, Tae Ho Lim, Sangchun Choi, Tae Gun Shin, Sangun Nah, Sangsoo Han European Journal of Emergency Medicine.2026; 33(3): 169. CrossRef
Association between emergency department crowding and mortality: a nationwide analysis stratified by emergency department levels: a retrospective cohort study Minha Kim, Jin-Hee Lee, Minyoung Choi, Doyeop Kim, Hanseok Chang, Sejin Heo, Seung Jin Maeng, Tae Gun Shin, Eunsil Ko, Hansol Chang BMC Emergency Medicine.2026;[Epub] CrossRef
Emergency department utilisation in an ageing population: a retrospective observational study Hanzhang Xu, Fahad Javaid Siddiqui, Zhi Xiong Koh, Andrew Fu Wah Ho, Marcus Eng Hock Ong Singapore Medical Journal.2026; 67(4): 241. CrossRef
Early prognostication of septic shock in Korean adults aged 80 years and over: serum albumin combined with Sequential Organ Failure Assessment score Sang-Min Kim, Seung Mok Ryoo, Woon Yong Kwon, Kyuseok Kim, Tae Ho Lim, Sung Pil Chung, Sung-Hyuk Choi, Won Young Kim Acute and Critical Care.2026; 41(2): 304. CrossRef
Factors Influencing Health-related Outcomes in Older Patients Presenting to the Emergency Department: A Prospective Observational Study Ambica Singh, Ayantika Haldar, Prasun Chatterjee, Prakash Kumar, Avinash Chakrawarty, Praveen Aggarwal, Aparajit Ballabh Dey South Asian Journal of Geriatric Medicine, Surgery, Palliative Care & Hospice.2026; 1(2): 70. CrossRef
A team without a name: emergency medicine recognition and its impact on working conditions and well-being Megan Gates Kemnitz, Eugenia-Maria Lupan-Muresan, Francis Somville, Bruno Barcella, Noaa Shopen, María de los Angeles López Hernández, Eric P. Heymann Medizinische Klinik - Intensivmedizin und Notfallmedizin.2025; 120(6): 481. CrossRef
ANALYSIS OF GERIATRIC POPULATION VISITING EMERGENCY DEPARTMENT: A PROSPECTIVE STUDY JAHNU BHOJ NAGAL, BHUVNESHWARI JAITAWAT, TEJPAL YADAV, KAVITA JAIN International Journal of Current Pharmaceutical Research.2025; : 129. CrossRef
Occupational Toxic Effect Episodes in a University Hospital, 2021–2024: A Descriptive Analysis Within the Korean Occupational Disease Surveillance Center Yangwoo Kim, Ha-Eun Lee, Jei Kim, Tae-Won Jang Safety and Health at Work.2025; 16(4): 438. CrossRef
Impact of direct prehospital transport on mortality in patients with severe trauma based on the injury severity score: a nationwide observational study in the Republic of Korea Sun Ju Kim, KeunKyun Kim, Oh Hyun Kim, Chan Yong Park Osong Public Health and Research Perspectives.2025; 16(4): 381. CrossRef
Factors Influencing Hospitalization Among Older Adults in Tokyo's Emergency Medical Services: The Role of Cerebral Disease and Seasonal Variations Kohri Megumi, Ryotaro Suga, Kensuke Suzuki, Satoo Ogawa, Hiroyuki Yokota Geriatrics & Gerontology International.2025; 25(12): 1724. CrossRef
Structured simulation-based education in emergency medicine residency programs: Pavia’s proposal for competence development and crisis management (Italy) Bruno Barcella, Marco Bonzano, Stefano Perlini, Francesco Salinaro, Emergency Medicine Simulation Group Emergency Care Journal.2025;[Epub] CrossRef
The prevalence and factors of adverse health outcomes in Chinese older emergency patients: a cohort study Xinyu Ren, Manping Gu, Kebiao Zhang, Hong Li, Rui He BMC Geriatrics.2025;[Epub] CrossRef
Emergency department crowding: a national data report Hansol Chang, Eunsil Ko, Jin-Hee Lee, Minha Kim, Taerim Kim, Tae Gun Shin, Seongjung Kim Clinical and Experimental Emergency Medicine.2024; 11(4): 331. CrossRef
Factors that predict emergency department length of stay in analysis of national data Minha Kim, Sujeong Lee, Minyoung Choi, Doyeop Kim, Junsang Yoo, Tae Gun Shin, Jin-Hee Lee, Seongjung Kim, Hansol Chang, Eunsil Ko Clinical and Experimental Emergency Medicine.2024; 12(1): 35. CrossRef
Towards Green Cardiovascular Care: Carbon Footprint Analysis in the Management of Coronary Artery Disease Young-Hae Go, Seokhun Yang, Doyeon Hwang, Bon-Kwon Koo Korean Circulation Journal.2026; 56(1): 1. CrossRef
Epidemiology of cardiac arrest and acute myocardial infarction in emergency departments in Korea, 2020–2024: a report using the National Emergency Department Information System (NEDIS) database Sejoong Ahn, Jung Eon Kim, Sung-keun Ko, Eunsil Ko Clinical and Experimental Emergency Medicine.2026; 13(1): 90. CrossRef
Development and validation of an interpretable machine learning model for early risk prediction of acute myocardial infarction Shixuan Cui, Longxiao Gao, Nan Zhang, Huanxin Zhang, Ningji Gong International Journal of Medical Informatics.2026; 217: 106489. CrossRef
Yiqi Huoxue formula promotes post-myocardial infarction angiogenesis by modulating mitochondria-associated membranes (MAMs) and calcium homeostasis via the cGMP/PKG signaling pathway Tianhui Du, Yunshu Zhang, Hui Wang, Weibin Xie, Caiyu Liang, Jingyun Guo, Chenglong Zheng, Shuwen Guo Journal of Ethnopharmacology.2026; 370: 121936. CrossRef
Artificial intelligence applied to electrocardiogram to rule out acute myocardial infarction: the ROMIAE multicentre study Min Sung Lee, Tae Gun Shin, Youngjoo Lee, Dong Hoon Kim, Sung Hyuk Choi, Hanjin Cho, Mi Jin Lee, Ki Young Jeong, Won Young Kim, Young Gi Min, Chul Han, Jae Chol Yoon, Eujene Jung, Woo Jeong Kim, Chiwon Ahn, Jeong Yeol Seo, Tae Ho Lim, Jae Seong Kim, Jeff European Heart Journal.2025; 46(20): 1917. CrossRef
Postacute Discharge Destination and Major Adverse Cardiovascular Events Among Patients With Intracerebral Hemorrhage Abdulaziz T. Bako, Thomas B.H. Potter, Alan P. Pan, Chih-Ying Li, Catherine Cooper Hay, Mathew J. Reeves, Rhonda Abott, Farhaan S. Vahidy Stroke.2025; 56(9): 2658. CrossRef
Metacognitions in Young and Middle-Aged Patients with Acute Myocardial Infarction: A Psychometric Study of the Metacognitions Questionnaire-30 Zizheng Liu, Panpan Wang, Yiwen Wang, Wenqian He, Ying Qin, Lianke Wang, Qiang Zhang, Ruiyi Yang, Changqing Sun Psychology Research and Behavior Management.2025; Volume 18: 2107. CrossRef
Objective Acute myocardial infarction is a major cause of out-of-hospital cardiac arrest (OHCA). Coronary angiography (CAG) enables diagnostic confirmation of coronary artery disease and subsequent revascularization, which might improve the prognosis of OHCA survivors. Non-randomized data has shown a favorable impact of CAG on prognosis for this population. However, the optimal timing of CAG has been debated.
Methods The clinical outcomes of 607 OHCA patients registered in CAPTURES (Cardiac Arrest Pursuit Trial with Unique Registration and Epidemiologic Surveillance), a nationwide multicenter registry performed in 27 hospitals, were analyzed. Early CAG was defined as CAG performed within 24 hours of emergency department admission. The primary outcome was survival to discharge, with neurologically favorable status defined by cerebral performance category scores ≤2.
Results Compared to patients without CAG (n=469), patients who underwent early CAG (n=138) were younger, more likely to be male, and more likely to have received bystander cardiopulmonary resuscitation, pre-hospital defibrillation, and revascularization (P<0.01 for all). Analysis of 115 propensity score-matched pairs showed that early CAG is associated with a 2.3-fold increase in survival to discharge with neurologically favorable status (P<0.001, all). Survival to discharge increased consistently according to the time interval between emergency department visit and CAG (P<0.05).
Conclusion Early CAG of OHCA patients was associated with better survival and favorable neurologic outcomes at discharge. However, there was no clear time threshold for CAG that predicted survival to discharge.
Citations
Citations to this article as recorded by
Coronary Angiography in Patients With Out-of-Hospital Cardiac Arrest Without ST-Segment Elevation on Electrocardiograms: A Comprehensive Review Sachin Kumar, Bahaa Abdelghaffar, Meghana Iyer, Ghaith Shamaileh, Raunak Nair, Weili Zheng, Beni Verma, Venu Menon, Samir R. Kapadia, Grant W. Reed Journal of the Society for Cardiovascular Angiography & Interventions.2023; 2(1): 100536. CrossRef
Impact of emergent coronary angiography after out-of-the-hospital cardiac arrest without ST-segment elevation – A systematic review and meta-analysis Nuno Alves, Mauro Mota, Madalena Cunha, Joana Maria Ribeiro International Journal of Cardiology.2022; 364: 1. CrossRef
ST-Elevation Myocardial Infarction Complicated by Out-of-Hospital Cardiac Arrest Marinos Kosmopoulos, Jason A. Bartos, Demetris Yannopoulos Interventional Cardiology Clinics.2021; 10(3): 359. CrossRef
2020 Korean Guidelines for Cardiopulmonary Resuscitation. Part 5. Post-cardiac arrest care Young-Min Kim, Kyung Woon Jeung, Won Young Kim, Yoo Seok Park, Joo Suk Oh, Yeon Ho You, Dong Hoon Lee, Minjung Kathy Chae, Yoo Jin Jeong, Min Chul Kim, Eun Jin Ha, Kyoung Jin Hwang, Won-Seok Kim, Jae Myung Lee, Kyoung-Chul Cha, Sung Phil Chung, June Dong Clinical and Experimental Emergency Medicine.2021; 8(S): S41. CrossRef
Gender difference in the clinical outcomes of patients with out-of-hospital cardiac arrest Gun Tak Lee, Sung Yeon Hwang, Ik Joon Jo, Tae Rim Kim, Hee Yoon, Won Chul Cha, Min Seob Sim, Sang Do Shin, Tae Gun Shin, Jin-Ho Choi Medicine.2021; 100(48): e27855. CrossRef
Coronary Angiography in Patients With Out-of-Hospital Cardiac Arrest Without ST-Segment Elevation Beni R. Verma, Vikram Sharma, Shashank Shekhar, Manpreet Kaur, Shameer Khubber, Agam Bansal, Jarmanjeet Singh, Keerat Rai Ahuja, Salik Nazir, Michael Chetrit, Venu Menon, Grant Reed, Samir Kapadia JACC: Cardiovascular Interventions.2020; 13(19): 2193. CrossRef
Management of post-cardiac arrest syndrome Youngjoon Kang Acute and Critical Care.2019; 34(3): 173. CrossRef
Selective Coronary Angiography Following Cardiac Arrest Jayasheel O. Eshcol, Adnan K. Chhatriwalla Cardiovascular Innovations and Applications.2019;[Epub] CrossRef
Predictors of Obstructive Coronary Disease and Mortality in Adults Having Cardiac Arrest Jignesh K. Patel, Ganesh Thippeswamy, Abdo Kataya, Charles A. Loeb, Puja B. Parikh The American Journal of Cardiology.2018; 122(1): 12. CrossRef
Massive pulmonary embolism (MPE) with hemodynamic instability is a clinical condition with a poor prognosis and high mortality rates. There are no definitive treatment options for cardiac arrest due to MPE. A 52-year-old female presented at our emergency department with cardiac arrest, and a 62-year-old female presented after achieving return of spontaneous circulation of cardiac arrest from a local hospital, respectively. In each case, computed tomographic pulmonary angiography after return of spontaneous circulation demonstrated heavy burdens of pulmonary embolism in the pulmonary arteries. We immediately started therapeutic hypothermia and fibrinolytic therapy. They were transferred to the thoracic surgery and cardiology departments respectively, and then discharged with a cerebral performance categories scale score of 1. In summary, we report two cases of out-of-hospital cardiac arrest due to MPE in which fibrinolytic therapy was successfully combined with therapeutic hypothermia.
First
Prev
