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Libourel PA, Lee WY, Achin I, Chung H, Kim J, Massot B, Rattenborg NC. Nesting chinstrap penguins accrue large quantities of sleep through seconds-long microsleeps. Science 2023; 382:1026-1031. [PMID: 38033080 DOI: 10.1126/science.adh0771] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/05/2023] [Indexed: 12/02/2023]
Abstract
Microsleeps, the seconds-long interruptions of wakefulness by eye closure and sleep-related brain activity, are dangerous when driving and might be too short to provide the restorative functions of sleep. If microsleeps do fulfill sleep functions, then animals faced with a continuous need for vigilance might resort to this sleep strategy. We investigated electroencephalographically defined sleep in wild chinstrap penguins, at sea and while nesting in Antarctica, constantly exposed to an egg predator and aggression from other penguins. The penguins nodded off >10,000 times per day, engaging in bouts of bihemispheric and unihemispheric slow-wave sleep lasting on average only 4 seconds, but resulting in the accumulation of >11 hours of sleep for each hemisphere. The investment in microsleeps by successfully breeding penguins suggests that the benefits of sleep can accrue incrementally.
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Affiliation(s)
- P-A Libourel
- Neuroscience Research Center of Lyon, Bron, France
| | - W Y Lee
- Korea Polar Research Institute, Incheon, Republic of Korea
| | - I Achin
- Neuroscience Research Center of Lyon, Bron, France
| | - H Chung
- Korea Polar Research Institute, Incheon, Republic of Korea
| | - J Kim
- Cheongju Zoo, Cheongju, Republic of Korea
| | - B Massot
- Lyon Institute of Nanotechnology, Villeurbanne, France
| | - N C Rattenborg
- Avian Sleep Group, Max Planck Institute for Biological Intelligence, Seewiesen, Germany
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Chung H, Seo H, Choi SH, Park CK, Kim TM, Park SH, Won JK, Lee JH, Lee ST, Lee JY, Hwang I, Kang KM, Yun TJ. Cluster Analysis of DSC MRI, Dynamic Contrast-Enhanced MRI, and DWI Parameters Associated with Prognosis in Patients with Glioblastoma after Removal of the Contrast-Enhancing Component: A Preliminary Study. AJNR Am J Neuroradiol 2022; 43:1559-1566. [PMID: 36175084 PMCID: PMC9731243 DOI: 10.3174/ajnr.a7655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 08/21/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND PURPOSE No report has been published on the use of DSC MR imaging, DCE MR imaging, and DWI parameters in combination to create a prognostic prediction model in glioblastoma patients. The aim of this study was to develop a machine learning-based model to find preoperative multiparametric MR imaging parameters associated with prognosis in patients with glioblastoma. Normalized CBV, volume transfer constant, and ADC of the nonenhancing T2 high-signal-intensity lesions were evaluated using K-means clustering. MATERIALS AND METHODS A total of 142 patients with glioblastoma who underwent preoperative MR imaging and total resection were included in this retrospective study. From the normalized CBV, volume transfer constant, and ADC maps, the parametric data were sorted using the K-means clustering method. Patients were divided into training and test sets (ratio, 1:1), and the optimal number of clusters was determined using receiver operating characteristic analysis. Kaplan-Meier survival analysis and log-rank tests were performed to identify potential parametric predictors. A multivariate Cox proportional hazard model was conducted to adjust for clinical predictors. RESULTS The nonenhancing T2 high-signal-intensity lesions were divided into 6 clusters. The cluster (class 4) with the relatively low normalized CBV and volume transfer constant value and the lowest ADC values was most associated with predicting glioblastoma prognosis. The optimal cutoff of the class 4 volume fraction of nonenhancing T2 high-signal-intensity lesions predicting 1-year progression-free survival was 9.70%, below which the cutoff was associated with longer progression-free survival. Two Kaplan-Meier curves based on the cutoff value showed a statistically significant difference (P = .037). When we adjusted for all clinical predictors, the cluster with the relatively low normalized CBV and volume transfer constant values and the lowest ADC value was an independent prognostic marker (hazard ratio, 3.04; P = .048). The multivariate Cox proportional hazard model showed a concordance index of 0.699 for progression-free survival. CONCLUSIONS Our model showed that nonenhancing T2 high-signal-intensity lesions with the relatively low normalized CBV, low volume transfer constant values, and the lowest ADC values could serve as useful prognostic imaging markers for predicting survival outcomes in patients with glioblastoma.
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Affiliation(s)
- H Chung
- From the Seoul National University College of Medicine (H.C., H.S.), Seoul, Korea
| | - H Seo
- From the Seoul National University College of Medicine (H.C., H.S.), Seoul, Korea
| | - S H Choi
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Center for Nanoparticle Research (S.H.C.), Institute for Basic Science, Seoul, Korea
- School of Chemical and Biological Engineering (S.H.C.), Seoul National University, Seoul, Korea
| | - C-K Park
- Department of Neurosurgery (C.-K.P.), Internal Medicine
| | - T M Kim
- Cancer Research Institute (T.M.K.)
| | - S-H Park
- Departments of Pathology (S.-H.P., J.K.W.), Radiation Oncology
| | - J K Won
- Departments of Pathology (S.-H.P., J.K.W.), Radiation Oncology
| | - J H Lee
- Cancer Research Institute (J.H.L.)
| | - S-T Lee
- Neurology (S.-T.L.), Seoul National University Hospital, Seoul, Korea
| | - J Y Lee
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - I Hwang
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - K M Kang
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - T J Yun
- Department of Radiology (S.H.C., J.Y.L., I.H., K.M.K., T.J.Y.), Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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Kwon Y, Lee H, Ryu K, Moon D, Chung H. Paid Sick Leave and Sickness Benefits for employees’ economic and job security: A Scoping Review. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac131.550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
In health emergencies, such as in the COVID-19 pandemic, the need to expand or introduce the Paid sick leave(PSL) and Sickness benefits(SB) increases. They are key components of the universal health coverage(UHC) and active labor market policies(ALMPs) that enable workers to take care of their health and guarantee return-to-work after recovery. This study examines effects those policies in achieving economic stability and job security of covered workers through a scoping review. Studies were selected using the search terms ‘paid sick leave', ‘sickness benefits', ‘paid sick day', and ‘earned sick leave’ in PubMed and Web of Science. Our search conducted on 6th April 2021 yielded 1,030 articles, of which 22 articles were included in the review. All articles were analyzed by the 4 sub-groups(employees, families, employers, and government) and we investigated indicators of socio-economic impacts on their lives. Articles are largely PSL(90.9%)-focused. PSL guarantees not only workers’ job security by securing employment agreement, but also their income security by promising part of wages enough to afford healthcare and living expenses during the medical treatment and recovery. Additionally, PSL attenuates employers’ financial risk, as it reduces presenteeism while increasing the return-to-work rate. Moreover, PSL and SB reduce the total healthcare and social security expenditures of the government. To sum up, PSL and SB guarantee health and labor rights by ensuring income and job security to employees while assuring financial stability to both employers, and the government. However, as the previous studies paid less attention on the equity of these impacts at the system levels, future research should more focus on the dimension.
Key messages
• PSL and SB guarantee health and labour rights by ensuring income and job security for employees, while assuring financial stability for both employers and the government.
• The previous studies that examined the effects of PSL and SB paid less attention on the equity of ensuring income and employment security, therefore future studies should focus more on this dimension.
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Affiliation(s)
- Y Kwon
- Department of Public Health Sciences, Graduate School, Korea University , Seoul, South Korea
- BK21 FOUR Learning Health Systems, Korea University , Seoul, South Korea
| | - H Lee
- Department of Public Health Sciences, Graduate School, Korea University , Seoul, South Korea
- BK21 FOUR Learning Health Systems, Korea University , Seoul, South Korea
| | - K Ryu
- Department of Public Health Sciences, Graduate School, Korea University , Seoul, South Korea
- BK21 FOUR Learning Health Systems, Korea University , Seoul, South Korea
| | - D Moon
- People’s Health Institute , Seoul, South Korea
| | - H Chung
- BK21 FOUR Learning Health Systems, Korea University , Seoul, South Korea
- School of Health Policy and Management, Korea University , Seoul, South Korea
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Lee H, Kwon Y, Ryu K, Sohn M, Chung H. The paid sick leave and sickness benefits for universal health coverage: a scoping review. Eur J Public Health 2022. [PMCID: PMC9594345 DOI: 10.1093/eurpub/ckac131.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The countries with paid sick leave (PSL) and sickness benefits (SB) mostly provide the benefit coverage to specific categories of workers, which results in health inequalities among employees in COVID-19. The PSL and SB are key factors to achieve universal health coverage (UHC) in that they protect access to healthcare and improve population health. This study attempted to investigate whether the policies helped achieve the UHC when they were expanded. Methods This review followed the scoping review protocol of PRISMA-ScR. On April 6, 2021, we extracted the literature using the keywords ‘paid sick leave', ‘sickness benefits', ‘paid sick day', and ‘earned sick leave’ from PubMed and Web of Science and added two studies through hand-search. All articles were written in English. We did not limit the publication date. Results Forty-four selected studies were based in four single countries and the European Union. Most of the studies were published after 2010 (84.1%) and were conducted as cross-sectional (72.7%) studies. Not only workers who use PSL and SB but also children whose parents use PSL and SB increased their use of healthcare services and getting flu shots. Also, using PSL and SB decreased their unmet healthcare needs and emergency use. The various health status factors, such as infectious disease incidence, mortality, and presenteeism, also decreased. Conclusions The provisions of PSL and SB offer individual and public health benefits by allowing employees and their families to use healthcare services. Group of employees, we can expect similar public health impacts on newly covered groups, thus contributing to achieving the UHC. Since more than 90% of articles are published from the United States, future studies need to evaluate the outcomes of health effects in various European or Asian countries. Key messages • The provision of PSL and SB positively affects employees and their families by allowing them to use healthcare services. • The expansion of PSL and SB contributes to the UHC by guaranteeing indirect medical costs that enable universal access to essential healthcare services.
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Affiliation(s)
- H Lee
- Department of Public Health Sciences, Graduate School, Korea University , Seoul, South Korea
- BK21FOUR Learning Health Systems, Korea University , Seoul, South Korea
| | - Y Kwon
- Department of Public Health Sciences, Graduate School, Korea University , Seoul, South Korea
- BK21FOUR Learning Health Systems, Korea University , Seoul, South Korea
| | - K Ryu
- Department of Public Health Sciences, Graduate School, Korea University , Seoul, South Korea
- BK21FOUR Learning Health Systems, Korea University , Seoul, South Korea
| | - M Sohn
- Division of Health and Medical Sciences, Cyber University of Korea , Seoul, South Korea
| | - H Chung
- BK21FOUR Learning Health Systems, Korea University , Seoul, South Korea
- School of Health Policy and Management, Korea University , Seoul, South Korea
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Yu S, Moon D, Sohn M, Kim J, Chung H. A Sick Benefit Scheme Reduces Unmet Healthcare Needs: An Natural Experiment in Seoul. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac131.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
South Korea experiences four times more unmet healthcare needs than OECD countries (11.6% and 2.6% respectively). Unmet healthcare needs are caused by the double burden of direct and indirect costs including income loss, and OECD countries operate a sickness benefit scheme to resolve sudden loss of pay. Seoul introduced the first sickness benefit system, Seoul-Type Paid Sick Leave Support (hereinafter Seoul Sick Leave), for self-employed national healthcare insurance subscribers to reduce the rate of unmet healthcare needs. By comparing the amount of increasing medical expenses between the beneficiary and non-beneficiary before (2018) and after (2019-2020) the introduction of the system, the study was intended to confirm the reduced unmet healthcare needs. This study used data from the National Health Information Database (NHID) and the difference in differences (DID) analytic framework. 96 and 121 patients were included in benefit and non-benefit cohorts, respectively. As a result, the beneficiary group’s expenses were smaller than those of the non-beneficiary group (coef.=-1.24, p = 0.026). However, the beneficiary group had a greater amount of increase in hospitalization expenses before and after the introduction than the non-beneficiary group did (coef.=1.66, p = 0.005). Our finding showed that the Seoul Sick Leave helped the precarious workers as they were able to use inpatient services when they needed. If it is to be scaled up to the national level, it should be applied all people to enhance universal health insurance in Korea.
Key messages
• Identified the effectiveness of the first sickness benefit system as it helped the precarious workers as they were able to use inpatient services when they needed.
• By financially supporting them, the Seoul Sick Leave support can achieve health promotion through early detection and treatment.
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Affiliation(s)
- S Yu
- BK21FOUR R&E Center for Learning Health Systems, Korea University , Seoul, South Korea
- Health Policy and Management, Korea University , Seoul, South Korea
| | - D Moon
- Center for Labour and Health, People’s Health Institute , Seoul, South Korea
| | - M Sohn
- Division of Health and Medical Sciences, The Cyber University of Korea , Seoul, South Korea
| | - J Kim
- Health Policy and Management, Korea University , Seoul, South Korea
| | - H Chung
- BK21FOUR R&E Center for Learning Health Systems, Korea University , Seoul, South Korea
- Health Policy and Management, Korea University , Seoul, South Korea
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Jo M, Chung H. Inequalities in adverse birth outcomes and survival in early childhood: birth cohort in South Korea. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac129.654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Adverse birth outcomes (ABOs) are considered the most common factor of deaths in early childhood. Inequalities in child mortality occur due to interactions between intrinsic and socio-environmental factors related to socioeconomic disadvantage. There are, however, few studies investigating the impact of ABOs on mortality in terms of parental SEP.
Methods
Using the Under-5 Infant Birth-Death Cohort Data in Korea, a pooled retrospective birth cohort of all children born in 2012-2014 was built (N = 1,356,584). We analyzed neonatal, post-neonatal, and childhood mortality by ABOs and with the interaction of parental SEP using the Cox proportional hazard regression model for survival analyses. We further stratified the analysis both by parental SEP and child age. Multiple logistic regression was performed to confirm the social inequalities in ABO itself.
Results
After adjusting for covariates, children born with ABOs presented higher risk of mortality for all periods. For post-neonatal period, lower maternal education showed significant interaction effect with LBW (HR = 0.57; 95% CI = [0.39-0.85]), PTB (HR = 0.53; 95% CI = [0.33-0.86]), LBW & PTB ([HR = 0.67; 95% CI = [0.54-0.83]) while lower paternal education (HR = 0.67; 95% CI = [0.54-0.82]) and maternal unemployment (HR = 0.80; 95% CI = [0.63-0.99]) showed significance for babies with LBW & PTB. However, stratification analyses suggested that the impact of ABOs on mortality was greater for children born to lower parental SEP in neonatal period. Meanwhile apparent social inequalities in ABOs were suggested from regression analyses.
Conclusions
We confirmed social inequalities in the incidence of ABOs as well as mortalities from ABOs. However, the difference in mortality between babies with and without ABOs was greater for advantaged children. Policies to reduce the mortality of children with ABOs as well as those of healthy children among socioeconomically disadvantaged families are required.
Key messages
• Social inequalities in mortality from ABOs were apparent especially in the neonatal period while the incidence of ABOs itself was greater among children from disadvantaged families.
• Disadvantaged children are more likely to die not only from ABOs but also from other socio-environmental determinants, especially in the post-neonatal period than their counterparts.
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Affiliation(s)
- M Jo
- Department of Public Health Sciences, Graduate School of Korea University , Seoul, South Korea
- BK21FOUR Learning Health Systems, Korea University , Seoul, South Korea
| | - H Chung
- BK21FOUR Learning Health Systems, Korea University , Seoul, South Korea
- School of Health Policy and Management, Korea University , Seoul, South Korea
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Jung KY, Chung H. Infectious aortitis from pyogenic spondylitis and psoas abscess: Case report. ULUS TRAVMA ACIL CER 2022; 28:1016-1019. [PMID: 35775686 PMCID: PMC10493834 DOI: 10.14744/tjtes.2022.12925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Infectious aortitis has various causes, presents mainly with an aneurysm, and is fatal without surgical intervention. This case report describes an 89-year-old woman who developed fever and back pain which initially diagnosed infectious aortitis confirmed through contrast-enhanced computed tomography (CT). Pyogenic spondylitis and psoas abscess, which were not visible through CT at admis-sion, were identified as the cause of infectious aortitis confirmed through positron emission tomography (PET). After percutaneous drainage and intravenous antibiotics, the patient was discharged in good condition and without surgical intervention. This case report emphasizes the critical role of PET in identifying the cause of infectious aortitis and demonstrates the effectiveness of successive treat-ment with antibiotics and timely radiologic intervention.
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Affiliation(s)
- Kwang Yul Jung
- Department of Digital Health, Samsung Advanced Institute for Health Science & Technology, Sungkyunkwan University, Seoul-Republic of Korea
- Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul-Republic of Korea
| | - Hosub Chung
- Department of Emergency Medicine, College of Medicine, Chung-Ang University, Seoul-Republic of Korea
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Lee T, Chung H, Chung J, Hur M, Hwang S, Song Y, Lee D. M168 Automation of harboe method for the measurement of plasma free hemoglobin. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Huang I, Chen W, Huang EY, Chung H, Huang WJ. Increased risk of subsequent cardiovascular disease among men aged 31-60 years with erectile dysfunction. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yoon S, Moon H, Yi A, Kim H, Chung H, Hur M, Yun Y, Yoo G. W071 Investigation of serial tests of quantiferon-tb gold in-tube and quantiferon-tb gold-plus in contacts to patients with active tuberculosis. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Correa R, Morton G, Chung H, Tseng C, Cheung P, Chu W, Liu S, McGuffin M, Shahid A, Davidson M, Ravi A, Helou J, Alayed Y, Zhang L, Mamedov A, Loblaw A. PO-1408 Two-fraction prostate SABR vs. two-fraction HDR brachytherapy: does dose heterogeneity matter? Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03372-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chung H, Namgung M, Lee DH, Choi YH, Bae SJ. Effect of delayed transport on clinical outcomes among patients with cardiac arrest during the coronavirus disease 2019 pandemic. Australas Emerg Care 2021; 25:241-246. [PMID: 34876368 PMCID: PMC8629739 DOI: 10.1016/j.auec.2021.11.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/23/2021] [Accepted: 11/23/2021] [Indexed: 11/27/2022]
Abstract
Background The coronavirus disease 2019 (COVID-19) pandemic has prompted many changes. Revised cardiopulmonary resuscitation (CPR) recommendations were issued including increased requirement for personal protective equipment (PPE) during CPR and isolation rooms. We hypothesized that these changes might have affected transport times and distance. Accordingly, we investigated any differences in transport time and distance and their effect on patient neurologic outcomes at hospital discharge. Methods This retrospective study was conducted among patients who experienced cardiopulmonary arrest and were admitted to an emergency department during specific periods — pre-COVID-19 (January 1 to December 31, 2019) and COVID-19 (March 1, 2020, to February 28, 2021). Result The mean transport distance was 3.5 ± 2.1 km and 3.7 ± 2.3 km during the pre-COVID-19 and COVID-19 periods, respectively (p = 0.664). The mean total transport time was 30.3 ± 6.9 min and 35.6 ± 9.3 min during the pre-COVID-19 and COVID-19 periods, respectively (p < 0.001). The mean activation time was 1.5 ± 2.2 min and 2.9 ± 4.5 min during the pre-COVID-19 and COVID-19 periods, respectively (p = 0.003). The mean transport time was 9.3 ± 3.5 min and 11.5 ± 6 min during the pre-COVID-19 and COVID-19 periods, respectively (p = 0.001). Conclusion Total transport time, including activation time for out-of-hospital cardiac arrest patients, increased owing to increased PPE requirements. However, there was no significant difference in the neurological outcome at hospital discharge.
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Affiliation(s)
- Hosub Chung
- Department of Emergency Medicine, Ewha Womans University Mokdong Hospital, College of Medicine, Ewha Womans University, 1071, Anyangcheon-ro, Yangcheon-gu, Seoul, Republic of Korea; Department of Emergency Medicine, Graduate school of Medicine, Seoul, Chung-Ang University, 102, Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea.
| | - Myeong Namgung
- Department of emergency medicine, College of Medicine, Seoul, Chung-Ang University, Emergency medicine, Chung-Ang university hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea.
| | - Dong Hoon Lee
- Department of emergency medicine, College of Medicine, Seoul, Chung-Ang University, Emergency medicine, Chung-Ang university hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea.
| | - Yoon Hee Choi
- Department of Emergency Medicine, Ewha Womans University Mokdong Hospital, College of Medicine, Ewha Womans University, 1071, Anyangcheon-ro, Yangcheon-gu, Seoul, Republic of Korea.
| | - Sung Jin Bae
- Department of emergency medicine, College of Medicine, Seoul, Chung-Ang University, Emergency medicine, Chung-Ang university hospital, 102, Heukseok-ro, Dongjak-gu, Seoul, Republic of Korea.
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Lee E, Chung H, Lee Y, Lee EJ, Park Y, Kim Y, Park J, Ahn S, Kim J, Ahn K, Park K, Son W, Yeom D, Jung J, Won J, Oh S. 544P A novel HER2/4-1BB bispecific antibody, YH32367 (ABL105) exerts significant anti-tumor effects through tumor-directed T cell activation. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Lee T, Ryoo H, Lee R, Paeng J, Chung H, Kim H. PO-1779 Endoscopically Determined Gross Tumor Volume and Metabolic Tumor Volume in Esophageal Cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08230-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chung H, Lee K, Kim W, Gainor J, Lakhani N, Chow L, Messersmith W, Fanning P, Squifflet P, Jin F, Forgie A, Wan H, Pons J, Randolph S, LoRusso P. SO-31 ASPEN-01: A phase 1 study of ALX148, a CD47 blocker, in combination with trastuzumab, ramucirumab and paclitaxel in patients with second-line HER2-positive advanced gastric or gastroesophageal junction cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Strickler J, Nakamura Y, Shitara K, Catenacci D, Janjigian Y, Barzi A, Bekaii-Saab T, Lenz H, Lee J, Van Cutsem E, Chung H, Tabernero J, Yoshino T, Siena S, Garrido-Mayor J, Palanca-Wessels M, Xie D, Marshall J. P-174 MOUNTAINEER-02: Phase 2/3 study of tucatinib, trastuzumab, ramucirumab, and paclitaxel in previously treated HER2+ gastric or gastroesophageal junction adenocarcinoma: Trial in progress. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Janjigian Y, Kawazoe A, Weber P, Luo S, Lonardi S, Kolesnik O, Barajas O, Bai Y, Shen L, Tang Y, Wyrwicz L, Shitara K, Qin S, Van Cutsem E, Tabernero J, Li L, Shih C, Bhagia P, Chung H. LBA-4 Initial data from the phase 3 KEYNOTE-811 study of trastuzumab and chemotherapy with or without pembrolizumab for HER2-positive metastatic gastric or gastroesophageal junction (G/GEJ) cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Chung H, Villanueva L, Graham D, Saada-Bouzid E, Ghori R, Kubiak P, Gumuscu B, Lerman N, Gomez-Roca C. P-139 A phase 2 multicohort study (LEAP-005) of lenvatinib plus pembrolizumab in patients with previously treated selected solid tumors: Pancreatic cancer cohort. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Catenacci D, Koshiji Rosales M, Chung H, Yoon H, Moehler M, Kang Y, Shen L. P-138 Margetuximab combined with anti-PD-1 (retifanlimab) or anti-PD-1/LAG-3 (tebotelimab) +/- chemotherapy in first-line therapy of advanced/metastatic HER2+ gastroesophageal junction or gastric cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Kravetz L, Chung H, Guin KF, Shebs W, Smith LS. Primary and ultimate biodegradation of an alcohol ethoxylate and a nonylphenol ethoxylate under average winter conditions in the United States. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1984-210102] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Shin K, Park K, Jeong S, Chung H. 580 Hair growth stimulation effects of b-catenin stimulating peptides through DKK-1 inhibition. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Chung H, Loblaw A, Tseng C, Murgic J, D'Alimonte L, Ravi A, Davidson M, Wronski M, Haider M, Morton G. PP-0162 MR-assisted whole salvage HDR prostate brachytherapy with intra-prostatic boost: a prospective study. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06454-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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SIMMS E, Chung H, Oberding L, Muruve D, McDonald B, Bromley A, Pillai D, Chun J. POS-210 POST-MORTEM MOLECULAR INVESTIGATIONS OF SARS-COV-2 IN AN UNEXPECTED DEATH OF A RECENT KIDNEY TRANSPLANT RECIPIENT. Kidney Int Rep 2021. [PMCID: PMC8049651 DOI: 10.1016/j.ekir.2021.03.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
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RAHMANI W, Sinha S, Chung H, Arora R, Jaffer A, Biernaskie J, Chun J. POS-389 PODOCYTE MATURATION IN HUMAN KIDNEY ORGANOIDS IS ACCELERATED WITH RENIN-ANGIOTENSIN SYSTEM ACTIVATION. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Chung H, Park CH, Kim YJ, Kim JY, Min PK, Yoon YW, Lee KA, Lee BK, Hong BK, Kim TH, Rim SJ, Kwon HM, Choi EY. Myocardial extracellular space expansion is related to burden of premature ventricular contractions in patients with hypertrophic cardiomyopathy without non-sustained ventricular tachycardia. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeaa356.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Current guidelines suggest the presence of non-sustained ventricular tachycardia (NSVT) as a risk factor of sudden cardiac death in patients with hypertrophic cardiomyopathy (HCM). However, high burden of premature ventricular contraction (PVC) may reflect myocardial fibrosis although the absence of NSVT.
Purpose
We investigated the association between PVC burden and myocardial extracellular space expansion in HCM patients without NSVT.
Methods
Of the 212 patients prospectively enrolled to the HCM registry of genetics, 84 patients were evaluated with both cardiac magnetic resonance and 24hr holter. Among them, 71 patients (58 males, mean age: 71 ± 13 years) have not been diagnosed with NSVT.
Results
Patients with NSVT (n = 13) showed more impaired LA functional indices and higher myocardial fibrosis burden compared with patients without NSVT (n = 71). Among patients who have not been diagnosed with NSVT, patients with late gadolinium enhancement (LGE, n = 46) had a higher total beats (109 ± 332 vs. 7 ± 13 beats per a day, p = 0.003) and burden (0.114 ± 0.225 vs. 0.008 ± 0.014 %, p = 0.003) of PVC during 24-hour compared with patients without LGE (n = 25). %LGE was correlated with total beats of PVC (r = 0.358, p = 0.002) and PVC burden (r = 0.377, p = 0.001). ECV also correlated with total beats of PVC (r = 0.387, p = 0.001) and PVC burden (r = 0.401, p = 0.001). The optimal cutoff value for PVC number was 45 (37.0% of sensitivity and 100% of specificity) with 0.733 of the area under the ROC curve (p < 0.001). Pathogenic or likely pathogenic sarcomere mutation was higher in NSVT group than no NSVT group (p < 0.05), and had a higher tendency in higher PVC burden group (0.05 < p < 0.1) than lower PVC burden group.
Conclusions
Total beats and burden of PVC are significantly related to increase in myocardial fibrosis in HCM patients without NSVT.
Abstract Figure. Mechanism of ventricular arrhythmia
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Affiliation(s)
- H Chung
- Kyung Hee Medical Center, Seoul, Korea (Republic of)
| | - CH Park
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - YJ Kim
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - JY Kim
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - PK Min
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - YW Yoon
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - KA Lee
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - BK Lee
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - BK Hong
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - TH Kim
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - SJ Rim
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - HM Kwon
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
| | - EY Choi
- Gangnam Severance Hospital, Seoul, Korea (Republic of)
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Alsabbagh MW, Kueper JK, Wong ST, Burge F, Johnston S, Peterson S, Lawson B, Chung H, Bennett M, Blackman S, McGrail K, Campbell J, Hogg W, Glazier R. Development of comparable algorithms to measure primary care indicators using administrative health data across three Canadian provinces. Int J Popul Data Sci 2020; 5:1340. [PMID: 33644408 PMCID: PMC7893851 DOI: 10.23889/ijpds.v5i1.1340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
INTRODUCTION Performance measurement has been recognized as key to transforming primary care (PC). Yet, performance reporting in PC lags behind even though high-performing PC is foundational to an effective and efficient health care system. OBJECTIVES We used administrative data from three Canadian provinces, British Columbia, Ontario and Nova Scotia, to: 1) identify and develop a core set of PC performance indicators using administrative data and 2) examine their ability to capture PC performance. METHODS Administrative data used included Physician Billings, Discharge Abstract Database, the National Ambulatory Care and Reporting System database, Census and Vital Statistics. Indicators were compiled based on a literature review of PC indicators previously developed with administrative data available in Canada (n=158). We engaged in iterative discussions to assess data conformity, completeness, and plausibility of results in all jurisdictions. Challenges to creating comparable algorithms were examined through content analysis and research team discussions, which included clinicians, analysts, and health services researchers familiar with PC. RESULTS Our final list included 21 PC performance indicators pertaining to 1) technical care (n=4), 2) continuity of care (n=6), and 3) health services utilization (n=11). Establishing comparable algorithms across provinces was possible though time intensive. A major challenge was inconsistent data elements. Ease of data access, and a deep understanding of the data and practice context, was essential for selecting the most appropriate data elements. CONCLUSIONS This project is unique in creating algorithms to measure PC performance across provinces. It was essential to balance internal validity of the indicators within a province and external validity across provinces. The intuitive desire of having the exact same coding across provinces was infeasible due to lack of standardized PC data. Rather, a context-tailored definition was developed for each jurisdiction. This work serves as an example for developing comparable PC performance indicators across different provincial/territorial jurisdictions.
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Affiliation(s)
| | | | - ST Wong
- University of British Columbia
| | | | - S Johnston
- Bruyère Research Institute, University of Ottawa
| | | | | | | | | | | | | | | | - W Hogg
- University of Ottawa, Montfort Hospital Research Institute
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Patel U, Blackmore M, Stein D, Carleton K, Chung H. Costs and Utilization for Low Income Minority Patients with Depression in a Collaborative Care Model Implemented in a Community‐Based Academic Health System. Health Serv Res 2020. [DOI: 10.1111/1475-6773.13482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- U. Patel
- Albert Einstein College of Medicine Bronx NY United States
| | - M. Blackmore
- Montefiore Medical Center Bronx NY United States
| | - D. Stein
- Montefiore Medical Center Bronx NY United States
| | - K. Carleton
- Montefiore Medical Center Bronx NY United States
| | - H. Chung
- Montefiore Medical Center Bronx NY United States
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Shin K, Shin K, Yoon S, Jung J, Hwang E, Chung H, Lee S, Jeong S. 757 Clinical efficacy of topical autophagy activator on acne-prone skin. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yoon H, Fuchs C, Özgüroğlu M, Bang Y, Bartolomeo MD, Mandala M, Ryu M, Fornaro L, Olesinski T, Caglevic C, Chung H, Muro K, Cutsem EV, Elme A, Thuss-Patience P, Chau I, Ohtsu A, Wang A, Bhagia P, Lin J, Shih C, Shitara K. O-12 KEYNOTE-061: Response to subsequent therapy following second-line pembrolizumab or paclitaxel in patients with advanced gastric or gastroesophageal junction adenocarcinoma. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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30
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Catenacci D, Rosales MK, Chung H, Yoon H, Shen L, Moehler M, Kang Y. P-342 Margetuximab combined with anti-PD-1 (MGA012) or anti-PD-1/LAG-3 (MGD013) +/- chemotherapy in first-line therapy of advanced/metastatic HER2+ gastroesophageal junction or gastric cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Chung H, Lee JH. Clinical validation of screening test for at-risk drinking for young and middle-aged adults in an emergency department. HONG KONG J EMERG ME 2020. [DOI: 10.1177/1024907920933757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Emergency department has been shown to be suitable for conducting screening and interventions for at-risk drinking groups. Simple screening test is needed for crowded environments such as the emergency department. Objective: This study explores the validity of screening test for at-risk drinking, which was a newly developed abbreviated version of the alcohol use disorder identification test, among patients in the emergency department. Method: A survey was conducted at the emergency department of an academic tertiary hospital in South Korea during 4 months. All patients, who visited the emergency department and were between 19 and 65 years of age, answered the alcohol use disorder identification test questionnaire. In this study, at-risk drinking was identified using alcohol use disorder identification test. Results: The screening test was completed by 178 patients in this study. At-risk drinking group comprises 78 patients (43.8%). The cut-off values of screening test for at-risk drinking were 3 for males and 2 for females. As a result, the sensitivity/specificity was 98.0/93.5 and 96.4/79.6 for men and women, respectively. Area under the receiver operating characteristics of screening test for at-risk drinking was 0.9 and 0.9 in men and women, respectively. Conclusion: screening test for at-risk drinking is a useful test that easily identifies at-risk drinking. It is expected that this test can facilitate screening for at-risk drinking in emergency department setting.
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Affiliation(s)
- Hosub Chung
- Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea
- Department of Emergency medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Jae Hee Lee
- Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea
- Department of Emergency medicine, College of Medicine, Ewha Womans University, Seoul, Korea
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Kang Y, Chin K, Chung H, Kadowaki S, Oh S, Nakayama N, Lee K, Hara H, Chung I, Tsuda M, Park S, Hosaka H, Hironaka S, Miyata Y, Ryu M, Takeuchi M, Baba H, Hyodo I, Bang Y, Boku N. A phase III study of TAS-118 plus oxaliplatin versus S-1 plus cisplatin as first-line chemotherapy in patients with advanced gastric cancer (SOLAR study). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz183.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tabernero J, Van Cutsem E, Bang Y, Fuchs C, Wyrwicz L, Lee K, Kudaba I, Garrido M, Chung H, Castro Salguero H, Mansoor W, Braghiroli M, Goekkurt E, Chao J, Wainberg Z, Kher U, Shah S, Kang S, Shitara K. Pembrolizumab with or without chemotherapy versus chemotherapy for first-line treatment of advanced gastric or gastroesophageal junction (G/GEJ) adenocarcinoma: The Phase 3 KEYNOTE-062 Study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz183.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chung H, Bang Y, Fuchs C, Qin S, Satoh T, Shitara K, Tabernero J, Van Cutsem E, Cao Z, Chen X, Kang S, Shih C, Janjigian Y. KEYNOTE-811 pembrolizumab plus trastuzumab and chemotherapy for HER2+ metastatic gastric or gastroesophageal junction cancer: a double-blind, randomized, placebo-controlled phase 3 study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Song H, Kang E, Soh H, Chung H, Chun J, Yoon S, Ijaz U, Koh Y. MULTI-OMICS APPROACHES TO UNDERSTAND GASTRIC MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.2631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- H. Song
- Cancer Research Institute; Seoul National University College of Medicine; Seoul Republic of Korea
| | - E. Kang
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - H. Soh
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - H. Chung
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - J. Chun
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - S. Yoon
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - U. Ijaz
- School of Engineering; University of Glasgow; Glasgow United Kingdom
| | - Y. Koh
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
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Friedland M, Chung H, McGee J. 1042 Characterizing Imiquimod (IMQ)-induced psoriasis-like dermatitis in BALB/c mice: Application in dermatology research. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Shin K, Yoon S, Jung J, Hwang E, Jeong S, Chung H, Park K. 466 Stimulation of autophagy attenuated Propionibacterium acnes-induced inflammatory responses in cultured skin cells. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Alayed Y, Cheung P, Chu W, Chung H, Davidson M, Ravi A, Helou J, Zhang L, Mamedov A, Commisso A, Commisso K, Loblaw A. PO-0840 Two StereoTactic Ablative Radiotherapy Treatments for Localized Prostate Cancer (2STAR). Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31260-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Chung H, Lang P, Kayvanrad M, Thompson R, Chu W, Gennatas E, Valdes G, Cheung P. EP-1453 Machine learning prediction of early distant progression after SBRT for colorectal cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31873-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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40
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Mendez L, Martell K, Chung H, Tseng C, Alayed Y, Cheung P, Liu S, Vesprini D, Chu W, Szumacher E, Ravi A, Loblaw A, Morton G. OC-0288 Long-term results of 15Gy HDRBT boost in intermediate risk-prostate cancer:Analysis of 500 + patients. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30708-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Martell K, Mendez LC, Chung H, Tseng CL, Zhang L, Alayed Y, Liu S, Vesprini D, Chu W, Paudel M, Cheung P, Szumacher E, Ravi A, Loblaw A, Morton G. Absolute percentage of biopsied tissue positive for Gleason pattern 4 disease (APP4) appears predictive of disease control after high dose rate brachytherapy and external beam radiotherapy in intermediate risk prostate cancer. Radiother Oncol 2019; 135:170-177. [PMID: 31015164 DOI: 10.1016/j.radonc.2019.03.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/06/2019] [Accepted: 03/10/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE To identify if, in intermediate risk prostate cancer (IR-PCa), the absolute percentage of biopsied tissue positive for pattern 4 disease (APP4) may be a predictor of outcome. MATERIALS AND METHODS 411 patients with IR-PCa were retrospectively reviewed. APP4 was calculated based on biopsy reports. Multivariable competing risk analysis was then performed on optimized APP4 cutpoints to predict for biochemical failure (BF), androgen deprivation use for BF (ADT-BF) and development of metastases (MD). RESULTS Median follow-up for the cohort was 5.2 (Inter Quartile Range: 2.9-6.6) years. Median baseline PSA was 7.3 (5.3-9.8) ng/mL. 234 (56.9%) patients had T1 and 177 (43.1%) had T2 disease. Median APP4 was 2.00 (0.75-7.50)%. 38 (9.3%) patients experienced BF. The optimal cutpoint of APP4 for BF was >3.3% with an area under the curve (AUC) of 0.66. 17 (4.1%) received ADT-BF. The ADT-BF cutpoint was >6.6% with an AUC of 0.72. Eight (2.0%) developed MD. The MD cutpoint was >17.5% with an AUC of 0.86. Using APP4 >3.3 vs ≤ 3.3, log-transformed baseline PSA ln(PSA) (HR 2.5, 1.1-6.1; p = 0.037) and APP4 (HR 2.3, 1.1-4.7; p = 0.031) predicted for BF. Using APP4 >6.6 vs ≤ 6.6, ln(PSA) (HR 4.2, 1.4-12.4; p = 0.010) and APP4 (HR 3.7, 1.4-10.0; p = 0.009) were predictive of ADT-BF. APP4 >17.5 vs ≤ 17.5 alone was predictive of MD (HR 25.7, 4.9-135.3; p < 0.001). CONCLUSION APP4 cutpoints of >3.3%, >6.6% and >17.5% were strongly associated with increased risk of BF, ADT-BF and developing MD respectively. These findings may inform future practice when treating IR-PCa but require external validation.
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Affiliation(s)
- K Martell
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - L C Mendez
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Western University, Department of Radiation Oncology, London, Canada; London Health Sciences Centre, London, Canada
| | - H Chung
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - C L Tseng
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - L Zhang
- Sunnybrook Health Sciences Centre, Toronto, Canada
| | - Y Alayed
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada; Division of Radiation Oncology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - S Liu
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - D Vesprini
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - W Chu
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - M Paudel
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - P Cheung
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - E Szumacher
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - A Ravi
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - A Loblaw
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | - G Morton
- University of Toronto, Department of Radiation Oncology, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada.
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Blanchette P, Chung H, Pritchard K, Earle C, Campitelli M, Crowcroft N, Gubbay J, Karnauchow T, Katz K, McGeer A, McNally D, Richardson D, Richardson S, Rosella L, Simor A, Smieja M, Zahariadis G, Campigotto A, Kwong J. Influenza vaccine effectiveness among cancer patients: A population-based study using health administrative and laboratory testing data from Ontario, Canada. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy297.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shitara K, Özgüroğlu M, Bang YJ, Di Bartolomeo M, Mandalà M, Ryu MH, Fornaro L, Olesiński T, Caglevic C, Chung H, Muro K, Gökkurt E, Mansoor W, McDermott R, Schacham-Shmueli E, Chen X, Kang SP, Mayo C, Ohtsu A, Fuchs C. KEYNOTE-061: Phase 3 study of pembrolizumab vs paclitaxel for previously treated advanced gastric or gastroesophageal junction (G/GEJ) cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy208.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chung H, Park J, Shin S, Lee S, Lee Y. Impact of the length of the resection margin on local recurrence after curative endoscopic submucosal dissection for early gastric cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lim O, Chung H, Min B, Her J, Hwang Y. Post-transfusion kinetics of allogeneic natural killer cells in patients with malignant lymphoma or advanced solid tumors. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Xu S, Jung I, Xie Z, Kim J, Chung H, Zhao J, Rogers J. 1417 A soft, flexible, battery-less, and wearable pressure sensor with wireless communication for therapeutic compression garments: Bench validation and preliminary in vivo testing. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Mendez L, Ravi A, Tseng C, Chung H, Paudel M, Wronski M, Davidson M, Loblaw A, Morton G. PO-1028: Acute urinary retention and hematuria in prostate cancer patients treated with HDR-BT. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31338-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Song M, Seo T, Park S, Chung H, Lee S, Jung E. Abstract No. 683 Effectiveness of arm positioning on evaluation of subclavian vein at upper extremity CT venography. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Choi H, Chung H, Muntaner C, Lee M, Kim Y, Barry CE, Cho SN. The impact of social conditions on patient adherence to pulmonary tuberculosis treatment. Int J Tuberc Lung Dis 2018; 20:948-54. [PMID: 27287649 DOI: 10.5588/ijtld.15.0759] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Tuberculosis (TB) remains one of the main concerns in global health. One of the main threats to treatment success is patient non-adherence to anti-tuberculosis treatment. OBJECTIVE To identify the relation between social conditions and treatment adherence in a prospective cohort setting in an intermediate TB burden country. DESIGN To identify associations between poor adherence and social conditions, including educational level, type of residence and occupation, we constructed hierarchical logistic regression models. RESULTS A total of 551 participants were included in the study. Low educational levels, poor housing and occupations in the construction and manufacturing industries and service sectors were associated with poor adherence; this association was likely to be differentiated by previous history of anti-tuberculosis treatment. CONCLUSION Policy making should focus on improving the social conditions of patients by working towards better housing conditions and providing health promoting working conditions to enable treatment adherence.
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Affiliation(s)
- H Choi
- Clinical Research Section, International Tuberculosis Research Center, Changwon, Department of Research and Development, The Korean Institute of Tuberculosis, Cheongju, Seoul, Republic of Korea
| | - H Chung
- BK21PLUS Program in Embodiment: Health-Society Interaction, Department of Public Health Sciences, Graduate School, Korea University, Seoul, Republic of Korea; School of Health Policy & Management, College of Health Science, Korea University, Seoul, Republic of Korea
| | - C Muntaner
- Bloomberg Faculty of Nursing, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - M Lee
- Clinical Research Section, International Tuberculosis Research Center, Changwon, Republic of Korea
| | - Y Kim
- Clinical Research Section, International Tuberculosis Research Center, Changwon, Republic of Korea
| | - C E Barry
- Tuberculosis Research Section, Laboratory of Clinical Infectious Disease, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - S-N Cho
- Clinical Research Section, International Tuberculosis Research Center, Changwon, Seoul, Republic of Korea
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Jeong J, Sa SJ, Chung H, Baek S, Choi I. A Dual Phosphodiesterase Inhibitor, Zardaverine (Type 3/4), Enhances Motility of Frozen-thawed Boar Sperm. Cryo Letters 2018; 39:196-200. [PMID: 30059566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Cryopreserved semen is useful for animal breeding via artificial insemination (AI); however, the use of frozen-thawed boar sperm is limited due to cryodamage. OBJECTIVE The goal of this study was to improve post-thaw motility of boar semen by supplementing the thawing medium with a phosphodiesterase inhibitor, Zardaverine. MATERIALS AND METHODS Thawed boar semen samples were treated with different concentrations of Zardaverine (0, 20, 50, 75, 100 µM) and the motility was evaluated using a computer-assisted sperm analyser. Toxic effects (sperm viability, DNA integrity, mitochondrial activity) were examined by eosin-nigrosin staining, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay and MitoTracker. RESULTS Sperm motility values included curvilinear velocity, rectilinear speed, average value, linearity index, straightness index, and progressive motility. The kinetic values were significantly higher with the 50 uM Zardaverine supplementation compared to non-treated control. Furthermore, there were no toxic effects of the Zardaverine treatment. CONCLUSION The dual phosphodiesterase inhibitor (type 3/4) Zardaverine significantly enhanced the motility of thawed spermatozoa without adverse effects.
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Affiliation(s)
- J Jeong
- Division of Animal and Dairy Sciences, College of Agriculture and Life Sciences, Chungnam University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - S J Sa
- National Institute of Animal Science, Rural Development Administration, 1500, Kongjwipatjwi-ro, Iseo-myeon, Wanjugun, Jeollabuk-do, 55356, Republic of Korea
| | - H Chung
- National Institute of Animal Science, Rural Development Administration, 1500, Kongjwipatjwi-ro, Iseo-myeon, Wanjugun, Jeollabuk-do, 55356, Republic of Korea
| | - S Baek
- National Institute of Animal Science, Rural Development Administration, 1500, Kongjwipatjwi-ro, Iseo-myeon, Wanjugun, Jeollabuk-do, 55356, Republic of Korea
| | - I Choi
- Division of Animal and Dairy Sciences, College of Agriculture and Life Sciences, Chungnam University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea. ;
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