1.Analysis of emergency department related lawsuits and its response
Ilchae JEONG ; Minhoo SEO ; Sang Ook HA ; Won Seok YANG ; Young Sun PARK ; Kangeui LEE ; Taejin PARK
Journal of the Korean Society of Emergency Medicine 2025;36(2):83-91
Objective:
This study examined the up-to-date facts from real cases of emergency medical litigations to provide information to act appropriately in medical lawsuits against emergency medicine specialists.
Methods:
Data were collected from lawsuits from 2008 to 2020. Thirty-nine cases were collected and analyzed retrospectively. Six emergency medicine specialists and one resident with a lawyer’s license participated in the analysis.
Results:
Medical litigations have surged since 2015. The lawsuits were due mainly to misdiagnoses and violations of the duty to explain. Medical staff won in 12 (38.7%) cases and lost in 19 (61.3%). The main reason for losing was a violation of the duty of care. In criminal claims, 50% of cases resulted in confinement. The win rate was 1.4 times higher in cases where consultation was requested from other specialties (42.9% and 29.4% win with consultation and without, respectively).
Conclusion
The win rate in lawsuits is decreasing, and the level of penalty is becoming more severe. The decrease in the violation of duty to explain was attributed to education through the years. The win rate was higher when consulting with other specialists. Hence, active consultation is recommended. In addition, the system of radiology interpretation requires improvement because of the many misdiagnoses from reading diagnostic images.
2.Whole genome sequencing analysis of enteropathogenic Escherichia coli from human and companion animals in Korea
Jae Young OH ; Kyung-Hyo DO ; Jae Hong JEONG ; SuMin KWAK ; Sujin CHOE ; Dongheui AN ; Jong-Chan CHAE ; Kwangjun LEE ; Kwang-Won SEO
Journal of Veterinary Science 2025;26(1):e1-
Objective:
To improve our understanding of EPEC, this study focused on analyzing and comparing the genomic characteristics of EPEC isolates from humans and companion animals in Korea.
Methods:
The whole genome of 26 EPEC isolates from patients with diarrhea and 20 EPEC isolates from companion animals in Korea were sequenced using the Illumina HiSeq X (Illumina, USA) and Oxford Nanopore MinION (Oxford Nanopore Technologies, UK) platforms.
Results:
Most isolates were atypical EPEC, and did not harbor the bfpA gene. The most prevalent virulence genes were found to be ompT (humans: 61.5%; companion animals:60.0%) followed by lpfA (humans: 46.2%; companion animals: 60.0%). Although pangenome analyses showed no apparent correlation among the origin of the strains, virulence profiles, and antimicrobial resistance profiles, isolates included in clade A obtained from both humans and companion animals exhibited high similarity. Additionally, all the isolates included in clade A encoded the ompT gene and did not encode the hlyE gene. The two isolates from companion animals harbored an incomplete bundle-forming pilus region encoding bfpA and bfpB. Moreover, the type IV secretion system-associated genes tra and trb were found in the bfpA-encoding isolates from humans.
Conclusions
and Relevance: Whole-genome sequencing enabled a more accurate analysis of the phylogenetic structure of EPEC and provided better insights into the understanding of EPEC epidemiology and pathogenicity.
3.Latest Insights into Long COVID Diagnosis and Treatment
Jun-Won SEO ; Seong Eun KIM ; Yoonjung KIM ; Eun Jung KIM ; Tark KIM ; Tae Hwa KIM ; So Hee LEE ; Eunjung LEE ; Jacob LEE ; Yu Bin SEO ; Young-Hoon JEONG ; Young Hee JUNG ; Yu Jung CHOI ; Joon Young SONG
Korean Journal of Medicine 2025;100(2):45-53
Long coronavirus disease (COVID) is a condition in which coronavirus disease 2019 (COVID-19) symptoms persist for over 3 months, and currently poses a global public health challenge. Due to varying manifestations and lack of standardized definitions, diagnostic methods, and treatments, comprehensive clinical guidelines are required. This review article, summarizing research and expert consensus up to June 2023, provides recommendations for diagnosis and long-term management of long COVID symptoms. It emphasizes thorough patient evaluation, including medical history, physical examinations, and tests, and advocates vaccination and antiviral treatments to reduce risk. Guidelines for long COVID will be updated as new knowledge emerges.
4.Whole genome sequencing analysis of enteropathogenic Escherichia coli from human and companion animals in Korea
Jae Young OH ; Kyung-Hyo DO ; Jae Hong JEONG ; SuMin KWAK ; Sujin CHOE ; Dongheui AN ; Jong-Chan CHAE ; Kwangjun LEE ; Kwang-Won SEO
Journal of Veterinary Science 2025;26(1):e1-
Objective:
To improve our understanding of EPEC, this study focused on analyzing and comparing the genomic characteristics of EPEC isolates from humans and companion animals in Korea.
Methods:
The whole genome of 26 EPEC isolates from patients with diarrhea and 20 EPEC isolates from companion animals in Korea were sequenced using the Illumina HiSeq X (Illumina, USA) and Oxford Nanopore MinION (Oxford Nanopore Technologies, UK) platforms.
Results:
Most isolates were atypical EPEC, and did not harbor the bfpA gene. The most prevalent virulence genes were found to be ompT (humans: 61.5%; companion animals:60.0%) followed by lpfA (humans: 46.2%; companion animals: 60.0%). Although pangenome analyses showed no apparent correlation among the origin of the strains, virulence profiles, and antimicrobial resistance profiles, isolates included in clade A obtained from both humans and companion animals exhibited high similarity. Additionally, all the isolates included in clade A encoded the ompT gene and did not encode the hlyE gene. The two isolates from companion animals harbored an incomplete bundle-forming pilus region encoding bfpA and bfpB. Moreover, the type IV secretion system-associated genes tra and trb were found in the bfpA-encoding isolates from humans.
Conclusions
and Relevance: Whole-genome sequencing enabled a more accurate analysis of the phylogenetic structure of EPEC and provided better insights into the understanding of EPEC epidemiology and pathogenicity.
5.Latest Insights into Long COVID Diagnosis and Treatment
Jun-Won SEO ; Seong Eun KIM ; Yoonjung KIM ; Eun Jung KIM ; Tark KIM ; Tae Hwa KIM ; So Hee LEE ; Eunjung LEE ; Jacob LEE ; Yu Bin SEO ; Young-Hoon JEONG ; Young Hee JUNG ; Yu Jung CHOI ; Joon Young SONG
Korean Journal of Medicine 2025;100(2):45-53
Long coronavirus disease (COVID) is a condition in which coronavirus disease 2019 (COVID-19) symptoms persist for over 3 months, and currently poses a global public health challenge. Due to varying manifestations and lack of standardized definitions, diagnostic methods, and treatments, comprehensive clinical guidelines are required. This review article, summarizing research and expert consensus up to June 2023, provides recommendations for diagnosis and long-term management of long COVID symptoms. It emphasizes thorough patient evaluation, including medical history, physical examinations, and tests, and advocates vaccination and antiviral treatments to reduce risk. Guidelines for long COVID will be updated as new knowledge emerges.
7.Temporal Radiographic Trajectory and Clinical Outcomes in COVID-19Pneumonia: A Longitudinal Study
Dong-Won AHN ; Yeonju SEO ; Taewan GOO ; Ji Bong JEONG ; Taesung PARK ; Soon Ho YOON
Journal of Korean Medical Science 2025;40(9):e25-
Background:
Currently, little is known about the relationship between the temporal radiographic latent trajectories, which are based on the extent of coronavirus disease 2019 (COVID-19) pneumonia and clinical outcomes. This study aimed to elucidate the differences in the temporal trends of critical laboratory biomarkers, utilization of critical care support, and clinical outcomes according to temporal radiographic latent trajectories.
Methods:
We enrolled 2,385 patients who were hospitalized with COVID-19 and underwent serial chest radiographs from December 2019 to March 2022. The extent of radiographic pneumonia was quantified as a percentage using a previously developed deep-learning algorithm. A latent class growth model was used to identify the trajectories of the longitudinal changes of COVID-19 pneumonia extents during hospitalization. We investigated the differences in the temporal trends of critical laboratory biomarkers among the temporal radiographic trajectory groups. Cox regression analyses were conducted to investigate differences in the utilization of critical care supports and clinical outcomes among the temporal radiographic trajectory groups.
Results:
The mean age of the enrolled patients was 58.0 ± 16.9 years old, with 1,149 (48.2%) being male. Radiographic pneumonia trajectories were classified into three groups: The steady group (n = 1,925, 80.7%) exhibited stable minimal pneumonia, the downhill group (n = 135, 5.7%) exhibited initial worsening followed by improving pneumonia, and the uphill group (n = 325, 13.6%) exhibited progressive deterioration of pneumonia. There were distinct differences in the patterns of temporal blood urea nitrogen (BUN) and C-reactive protein (CRP) levels between the uphill group and the other two groups. Cox regression analyses revealed that the hazard ratios (HRs) for the need for critical care support and the risk of intensive care unit admission were significantly higher in both the downhill and uphill groups compared to the steady group. However, regarding in-hospital mortality, only the uphill group demonstrated a significantly higher risk than the steady group (HR, 8.2; 95% confidence interval, 3.08–21.98).
Conclusion
Stratified pneumonia trajectories, identified through serial chest radiographs, are linked to different patterns of temporal changes in BUN and CRP levels. These changes can predict the need for critical care support and clinical outcomes in COVID-19 pneumonia.Appropriate therapeutic strategies should be tailored based on these disease trajectories.
8.Analysis of emergency department related lawsuits and its response
Ilchae JEONG ; Minhoo SEO ; Sang Ook HA ; Won Seok YANG ; Young Sun PARK ; Kangeui LEE ; Taejin PARK
Journal of the Korean Society of Emergency Medicine 2025;36(2):83-91
Objective:
This study examined the up-to-date facts from real cases of emergency medical litigations to provide information to act appropriately in medical lawsuits against emergency medicine specialists.
Methods:
Data were collected from lawsuits from 2008 to 2020. Thirty-nine cases were collected and analyzed retrospectively. Six emergency medicine specialists and one resident with a lawyer’s license participated in the analysis.
Results:
Medical litigations have surged since 2015. The lawsuits were due mainly to misdiagnoses and violations of the duty to explain. Medical staff won in 12 (38.7%) cases and lost in 19 (61.3%). The main reason for losing was a violation of the duty of care. In criminal claims, 50% of cases resulted in confinement. The win rate was 1.4 times higher in cases where consultation was requested from other specialties (42.9% and 29.4% win with consultation and without, respectively).
Conclusion
The win rate in lawsuits is decreasing, and the level of penalty is becoming more severe. The decrease in the violation of duty to explain was attributed to education through the years. The win rate was higher when consulting with other specialists. Hence, active consultation is recommended. In addition, the system of radiology interpretation requires improvement because of the many misdiagnoses from reading diagnostic images.
9.Whole genome sequencing analysis of enteropathogenic Escherichia coli from human and companion animals in Korea
Jae Young OH ; Kyung-Hyo DO ; Jae Hong JEONG ; SuMin KWAK ; Sujin CHOE ; Dongheui AN ; Jong-Chan CHAE ; Kwangjun LEE ; Kwang-Won SEO
Journal of Veterinary Science 2025;26(1):e1-
Objective:
To improve our understanding of EPEC, this study focused on analyzing and comparing the genomic characteristics of EPEC isolates from humans and companion animals in Korea.
Methods:
The whole genome of 26 EPEC isolates from patients with diarrhea and 20 EPEC isolates from companion animals in Korea were sequenced using the Illumina HiSeq X (Illumina, USA) and Oxford Nanopore MinION (Oxford Nanopore Technologies, UK) platforms.
Results:
Most isolates were atypical EPEC, and did not harbor the bfpA gene. The most prevalent virulence genes were found to be ompT (humans: 61.5%; companion animals:60.0%) followed by lpfA (humans: 46.2%; companion animals: 60.0%). Although pangenome analyses showed no apparent correlation among the origin of the strains, virulence profiles, and antimicrobial resistance profiles, isolates included in clade A obtained from both humans and companion animals exhibited high similarity. Additionally, all the isolates included in clade A encoded the ompT gene and did not encode the hlyE gene. The two isolates from companion animals harbored an incomplete bundle-forming pilus region encoding bfpA and bfpB. Moreover, the type IV secretion system-associated genes tra and trb were found in the bfpA-encoding isolates from humans.
Conclusions
and Relevance: Whole-genome sequencing enabled a more accurate analysis of the phylogenetic structure of EPEC and provided better insights into the understanding of EPEC epidemiology and pathogenicity.
10.Resveratrol attenuates aging-induced mitochondrial dysfunction and mitochondria-mediated apoptosis in the rat heart
Youngju CHOI ; Mi-Hyun NO ; Jun-Won HEO ; Eun-Jeong CHO ; Dong-Ho PARK ; Ju-Hee KANG ; Chang-Ju KIM ; Dae Yun SEO ; Jin HAN ; Hyo-Bum KWAK
Nutrition Research and Practice 2025;19(2):186-199
RESULTS:
Resveratrol significantly reduced cardiac hypertrophy and remodeling in aging hearts. In addition, resveratrol significantly ameliorated aging-induced mitochondrial dysfunction (e.g., decreased oxygen respiration and increased hydrogen peroxide emission) and mitochondria-dependent apoptotic signaling (the Bax/Bcl-2 ratio, mitochondrial permeability transition pore opening sensitivity, and cleaved caspase-3 protein levels).Resveratrol also significantly attenuated aging-induced apoptosis (determined via cleaved caspase-3 staining and TUNEL-positive myonuclei) in cardiac muscles.
CONCLUSION
This study demonstrates that resveratrol treatment has a beneficial effect on aging-induced cardiac remodeling by ameliorating mitochondrial dysfunction and inhibiting mitochondria-mediated apoptosis in the heart.

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