1.Significant miRNAs as Potential Biomarkers to Differentiate Moyamoya Disease From Intracranial Atherosclerotic Disease
Hyesun LEE ; Mina HWANG ; Hyuk Sung KWON ; Young Seo KIM ; Hyun Young KIM ; Soo JEONG ; Kyung Chul NOH ; Hye-Yeon CHOI ; Ho Geol WOO ; Sung Hyuk HEO ; Seong-Ho KOH ; Dae-Il CHANG
Journal of Clinical Neurology 2025;21(2):146-149
2.Global Burden of Vaccine-Associated Cerebrovascular Venous Sinus Thrombosis, 1968–2024: A Critical Analysis From the WHO Global Pharmacovigilance Database
Jaehyeong CHO ; Hyesu JO ; Hyunjee KIM ; Jaeyu PARK ; Damiano PIZZOL ; Min Seo KIM ; Ho Geol WOO ; Dong Keon YON
Journal of Korean Medical Science 2025;40(11):e101-
Despite widespread coronavirus disease 2019 (COVID-19) vaccine use, research on the association between vaccines and cerebrovascular venous sinus thrombosis (CVST) in diverse populations is limited. This study aimed to address this gap. Data from the World Health Organization pharmacovigilance database (1968–2024; total reports = 8,909,484) were used.Reporting odds ratios (RORs) and information components (ICs) were calculated to assess the association between each drug and CVST. In total, 851 cases were identified as vaccineassociated CVST, of which 527 (61.93%) occurred in female patients. Only Ad5-vectored COVID-19 vaccines had the highest ROR and IC value with CVST (ROR, 4.78; 95% confidence interval, 4.34–5.28; IC, 2.15). The risk of CVST increased with age, with the 45–64-years age group having an IC of 1.35, while the 65 years and older group had a higher IC of 2.08.The findings highlight the need for clinicians to recognize the potential risks of CVST and prioritize rigorous monitoring and research to ensure patient safety.
3.Global Burden of Vaccine-Associated Cerebrovascular Venous Sinus Thrombosis, 1968–2024: A Critical Analysis From the WHO Global Pharmacovigilance Database
Jaehyeong CHO ; Hyesu JO ; Hyunjee KIM ; Jaeyu PARK ; Damiano PIZZOL ; Min Seo KIM ; Ho Geol WOO ; Dong Keon YON
Journal of Korean Medical Science 2025;40(11):e101-
Despite widespread coronavirus disease 2019 (COVID-19) vaccine use, research on the association between vaccines and cerebrovascular venous sinus thrombosis (CVST) in diverse populations is limited. This study aimed to address this gap. Data from the World Health Organization pharmacovigilance database (1968–2024; total reports = 8,909,484) were used.Reporting odds ratios (RORs) and information components (ICs) were calculated to assess the association between each drug and CVST. In total, 851 cases were identified as vaccineassociated CVST, of which 527 (61.93%) occurred in female patients. Only Ad5-vectored COVID-19 vaccines had the highest ROR and IC value with CVST (ROR, 4.78; 95% confidence interval, 4.34–5.28; IC, 2.15). The risk of CVST increased with age, with the 45–64-years age group having an IC of 1.35, while the 65 years and older group had a higher IC of 2.08.The findings highlight the need for clinicians to recognize the potential risks of CVST and prioritize rigorous monitoring and research to ensure patient safety.
4.Significant miRNAs as Potential Biomarkers to Differentiate Moyamoya Disease From Intracranial Atherosclerotic Disease
Hyesun LEE ; Mina HWANG ; Hyuk Sung KWON ; Young Seo KIM ; Hyun Young KIM ; Soo JEONG ; Kyung Chul NOH ; Hye-Yeon CHOI ; Ho Geol WOO ; Sung Hyuk HEO ; Seong-Ho KOH ; Dae-Il CHANG
Journal of Clinical Neurology 2025;21(2):146-149
5.Global Burden of Vaccine-Associated Cerebrovascular Venous Sinus Thrombosis, 1968–2024: A Critical Analysis From the WHO Global Pharmacovigilance Database
Jaehyeong CHO ; Hyesu JO ; Hyunjee KIM ; Jaeyu PARK ; Damiano PIZZOL ; Min Seo KIM ; Ho Geol WOO ; Dong Keon YON
Journal of Korean Medical Science 2025;40(11):e101-
Despite widespread coronavirus disease 2019 (COVID-19) vaccine use, research on the association between vaccines and cerebrovascular venous sinus thrombosis (CVST) in diverse populations is limited. This study aimed to address this gap. Data from the World Health Organization pharmacovigilance database (1968–2024; total reports = 8,909,484) were used.Reporting odds ratios (RORs) and information components (ICs) were calculated to assess the association between each drug and CVST. In total, 851 cases were identified as vaccineassociated CVST, of which 527 (61.93%) occurred in female patients. Only Ad5-vectored COVID-19 vaccines had the highest ROR and IC value with CVST (ROR, 4.78; 95% confidence interval, 4.34–5.28; IC, 2.15). The risk of CVST increased with age, with the 45–64-years age group having an IC of 1.35, while the 65 years and older group had a higher IC of 2.08.The findings highlight the need for clinicians to recognize the potential risks of CVST and prioritize rigorous monitoring and research to ensure patient safety.
6.Significant miRNAs as Potential Biomarkers to Differentiate Moyamoya Disease From Intracranial Atherosclerotic Disease
Hyesun LEE ; Mina HWANG ; Hyuk Sung KWON ; Young Seo KIM ; Hyun Young KIM ; Soo JEONG ; Kyung Chul NOH ; Hye-Yeon CHOI ; Ho Geol WOO ; Sung Hyuk HEO ; Seong-Ho KOH ; Dae-Il CHANG
Journal of Clinical Neurology 2025;21(2):146-149
7.Global Burden of Vaccine-Associated Cerebrovascular Venous Sinus Thrombosis, 1968–2024: A Critical Analysis From the WHO Global Pharmacovigilance Database
Jaehyeong CHO ; Hyesu JO ; Hyunjee KIM ; Jaeyu PARK ; Damiano PIZZOL ; Min Seo KIM ; Ho Geol WOO ; Dong Keon YON
Journal of Korean Medical Science 2025;40(11):e101-
Despite widespread coronavirus disease 2019 (COVID-19) vaccine use, research on the association between vaccines and cerebrovascular venous sinus thrombosis (CVST) in diverse populations is limited. This study aimed to address this gap. Data from the World Health Organization pharmacovigilance database (1968–2024; total reports = 8,909,484) were used.Reporting odds ratios (RORs) and information components (ICs) were calculated to assess the association between each drug and CVST. In total, 851 cases were identified as vaccineassociated CVST, of which 527 (61.93%) occurred in female patients. Only Ad5-vectored COVID-19 vaccines had the highest ROR and IC value with CVST (ROR, 4.78; 95% confidence interval, 4.34–5.28; IC, 2.15). The risk of CVST increased with age, with the 45–64-years age group having an IC of 1.35, while the 65 years and older group had a higher IC of 2.08.The findings highlight the need for clinicians to recognize the potential risks of CVST and prioritize rigorous monitoring and research to ensure patient safety.
8.Resident and nurse attitudes toward a rapid response team in a tertiary hospital in South Korea
Sung Yoon LIM ; Ho Geol WOO ; Jong Sun PARK ; Young-Jae CHO ; Jae Ho LEE ; Yeon Joo LEE
Acute and Critical Care 2025;40(1):29-37
Background:
Residents and nurses who activate rapid response teams (RRTs) are well positioned to offer insights on its effectiveness. Here, we assess such evaluation of RRTs and identify barriers to activation in a 1,400-bed teaching hospital.
Methods:
We conducted a 24-item Likert-scale survey from January to May 2017 among residents and ward nurses with RRT experience. Factor analysis was used to identify the barriers.
Results:
This study comprised 305 nurses and 53 residents, most of whom were satisfied with their RRT experiences. Factor analysis showed that lack of awareness of activation criteria was a major barrier, with only 21.4% and 22.2% participants, respectively, confident about their knowledge of activation protocols. Of the survey respondents, 85.7% reported first contacting the doctor before activating the RRT. Despite the protocol, 66.7% first discussed the decision with other staff, and 71.5% called the RRT when the patient’s condition worsened despite management.
Conclusions
Nurses and residents value RRTs but face barriers in initiation, primarily due to a lack of confidence in applying the activation criteria. Many prefer to consult a doctor or manage the patient before calling the RRT.
9.Global Estimates of Reported Vaccine-Associated Ischemic Stroke for 1969–2023: A Comprehensive Analysis of the World Health Organization Global Pharmacovigilance Database
Jaehyeong CHO ; Jaeyu PARK ; Hyesu JO ; Yesol YIM ; Ho Geol WOO ; Jiyeon OH ; Dong Keon YON
Journal of Stroke 2024;26(3):463-467
10.Wall Shear Stress Associated with Stroke Occurrence and Mechanisms in Middle Cerebral Artery Atherosclerosis
Ho Geol WOO ; Hyug-Gi KIM ; Kyung Mi LEE ; Sang Hee HA ; HangJin JO ; Sung Hyuk HEO ; Dae-il CHANG ; David S. LIEBESKIND ; Bum Joon KIM
Journal of Stroke 2023;25(1):132-140
Background:
and Purpose Various mechanisms are involved in the etiology of stroke caused by atherosclerosis of the middle cerebral artery (MCA). Here, we compared differences in plaque nature and hemodynamic parameters according to stroke mechanism in patients with MCA atherosclerosis.
Methods:
Consecutive patients with asymptomatic and symptomatic MCA atherosclerosis (≥50% stenosis) were enrolled. MCA plaque characteristics (location and plaque enhancement) and wall shear stress (WSS) were measured using high-resolution vessel wall and four-dimensional flow magnetic resonance imaging, respectively, at five points (initial, upstream, minimal lumen, downstream, and terminal). These parameters were compared between patients with asymptomatic and symptomatic MCA atherosclerosis with infarctions of different mechanisms (artery-to-artery embolism vs. local branch occlusion).
Results:
In total, 110 patients (46 asymptomatic, 32 artery-to-artery embolisms, and 32 local branch occlusions) were investigated. Plaques were evenly distributed in the MCA of patients with asymptomatic MCA atherosclerosis, more commonly observed in the distal MCA of patients with artery-to-artery embolism, and in the middle MCA of patients with local branch occlusion. Maximum WSS and plaque enhancement were more prominent in the minimum lumen area of patients with asymptomatic MCA atherosclerosis or those with local branch occlusion, and were more prominent in the upstream area in those with artery-to-artery embolism. The elevated variability in the maximum WSS was related to stroke caused by artery-to-artery embolism.
Conclusion
Stroke caused by artery-to-artery embolism was related to plaque enhancement and the highest maximum WSS at the upstream point of the plaque, and was associated with elevated variability of maximum WSS.

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