1.Effects of Cessation of Single-Room Isolation on Transmission of Vancomycin-Resistant Enterococcus in a Hospital
Si-Ho KIM ; Yu Jin LEE ; Ji Hong PARK ; Seran CHEON ; Jeong Seon RYU ; Jung Min SHIN ; Nam Sun HONG ; Yi-Rang JEONG ; Cheon Hoo JEON ; Yu Mi WI
Journal of Korean Medical Science 2024;40(5):e11-
Background:
Single room isolation with contact precautions is widely regarded as a fundamental strategy to prevent the transmission of multidrug-resistant organisms (MDROs). However, its implementation demands substantial resources, limiting its universal application to all MDROs. In this study, we assessed the effect of discontinuing single room isolation for vancomycin-resistant Enterococcus (VRE).
Methods:
This is a retrospective, observational study conducted at a single 750-bed tertiary center. We conducted an interrupted time series analysis to compare incidence rates and trends of new-onset VRE colonization and bacteremia during the one year before and after the strategy change on January 1, 2023.
Results:
Single-room occupancy decreased from 79.7% pre-intervention to 23.6% postintervention (P < 0.001). The incidence rate of new-onset VRE colonization was 0.452 and 0.535 per 1,000 patient-days in the pre- and post-intervention periods, respectively, with no statistically significant difference (P = 0.202). However, there was a slightly increasing trend (0.036 [95% confidence interval, −0.002, 0.074] increase per month, P = 0.066). The new-onset VRE bacteremia incidence rate was not differed in incidence (0.060 and 0.055, P= 0.571) or trend (P = 0.720).
Conclusion
Our study suggests that discontinuing single-room isolation for VRE patients may not affect the incidence of new-onset VRE bacteremia, but caution is needed due to the potential increase in colonization.
2.Effects of Cessation of Single-Room Isolation on Transmission of Vancomycin-Resistant Enterococcus in a Hospital
Si-Ho KIM ; Yu Jin LEE ; Ji Hong PARK ; Seran CHEON ; Jeong Seon RYU ; Jung Min SHIN ; Nam Sun HONG ; Yi-Rang JEONG ; Cheon Hoo JEON ; Yu Mi WI
Journal of Korean Medical Science 2024;40(5):e11-
Background:
Single room isolation with contact precautions is widely regarded as a fundamental strategy to prevent the transmission of multidrug-resistant organisms (MDROs). However, its implementation demands substantial resources, limiting its universal application to all MDROs. In this study, we assessed the effect of discontinuing single room isolation for vancomycin-resistant Enterococcus (VRE).
Methods:
This is a retrospective, observational study conducted at a single 750-bed tertiary center. We conducted an interrupted time series analysis to compare incidence rates and trends of new-onset VRE colonization and bacteremia during the one year before and after the strategy change on January 1, 2023.
Results:
Single-room occupancy decreased from 79.7% pre-intervention to 23.6% postintervention (P < 0.001). The incidence rate of new-onset VRE colonization was 0.452 and 0.535 per 1,000 patient-days in the pre- and post-intervention periods, respectively, with no statistically significant difference (P = 0.202). However, there was a slightly increasing trend (0.036 [95% confidence interval, −0.002, 0.074] increase per month, P = 0.066). The new-onset VRE bacteremia incidence rate was not differed in incidence (0.060 and 0.055, P= 0.571) or trend (P = 0.720).
Conclusion
Our study suggests that discontinuing single-room isolation for VRE patients may not affect the incidence of new-onset VRE bacteremia, but caution is needed due to the potential increase in colonization.
3.Effects of Cessation of Single-Room Isolation on Transmission of Vancomycin-Resistant Enterococcus in a Hospital
Si-Ho KIM ; Yu Jin LEE ; Ji Hong PARK ; Seran CHEON ; Jeong Seon RYU ; Jung Min SHIN ; Nam Sun HONG ; Yi-Rang JEONG ; Cheon Hoo JEON ; Yu Mi WI
Journal of Korean Medical Science 2024;40(5):e11-
Background:
Single room isolation with contact precautions is widely regarded as a fundamental strategy to prevent the transmission of multidrug-resistant organisms (MDROs). However, its implementation demands substantial resources, limiting its universal application to all MDROs. In this study, we assessed the effect of discontinuing single room isolation for vancomycin-resistant Enterococcus (VRE).
Methods:
This is a retrospective, observational study conducted at a single 750-bed tertiary center. We conducted an interrupted time series analysis to compare incidence rates and trends of new-onset VRE colonization and bacteremia during the one year before and after the strategy change on January 1, 2023.
Results:
Single-room occupancy decreased from 79.7% pre-intervention to 23.6% postintervention (P < 0.001). The incidence rate of new-onset VRE colonization was 0.452 and 0.535 per 1,000 patient-days in the pre- and post-intervention periods, respectively, with no statistically significant difference (P = 0.202). However, there was a slightly increasing trend (0.036 [95% confidence interval, −0.002, 0.074] increase per month, P = 0.066). The new-onset VRE bacteremia incidence rate was not differed in incidence (0.060 and 0.055, P= 0.571) or trend (P = 0.720).
Conclusion
Our study suggests that discontinuing single-room isolation for VRE patients may not affect the incidence of new-onset VRE bacteremia, but caution is needed due to the potential increase in colonization.
4.Effects of Cessation of Single-Room Isolation on Transmission of Vancomycin-Resistant Enterococcus in a Hospital
Si-Ho KIM ; Yu Jin LEE ; Ji Hong PARK ; Seran CHEON ; Jeong Seon RYU ; Jung Min SHIN ; Nam Sun HONG ; Yi-Rang JEONG ; Cheon Hoo JEON ; Yu Mi WI
Journal of Korean Medical Science 2024;40(5):e11-
Background:
Single room isolation with contact precautions is widely regarded as a fundamental strategy to prevent the transmission of multidrug-resistant organisms (MDROs). However, its implementation demands substantial resources, limiting its universal application to all MDROs. In this study, we assessed the effect of discontinuing single room isolation for vancomycin-resistant Enterococcus (VRE).
Methods:
This is a retrospective, observational study conducted at a single 750-bed tertiary center. We conducted an interrupted time series analysis to compare incidence rates and trends of new-onset VRE colonization and bacteremia during the one year before and after the strategy change on January 1, 2023.
Results:
Single-room occupancy decreased from 79.7% pre-intervention to 23.6% postintervention (P < 0.001). The incidence rate of new-onset VRE colonization was 0.452 and 0.535 per 1,000 patient-days in the pre- and post-intervention periods, respectively, with no statistically significant difference (P = 0.202). However, there was a slightly increasing trend (0.036 [95% confidence interval, −0.002, 0.074] increase per month, P = 0.066). The new-onset VRE bacteremia incidence rate was not differed in incidence (0.060 and 0.055, P= 0.571) or trend (P = 0.720).
Conclusion
Our study suggests that discontinuing single-room isolation for VRE patients may not affect the incidence of new-onset VRE bacteremia, but caution is needed due to the potential increase in colonization.
5.Multiple Injections of Adipose-Derived Stem Cells Improve Graft Survival in Human-to-Rat Skin Xenotransplantation through Immune Modulation
Sungmi JEON ; Iljin KIM ; Yi Rang NA ; Ki Yong HONG ; Hak CHANG ; Seung Hwan KIM ; Yu Jin JEONG ; Jee Hyeok CHUNG ; Sang Wha KIM
Tissue Engineering and Regenerative Medicine 2023;20(6):905-919
BACKGROUND:
Adipose-derived stem cells (ADSCs) exert immunomodulatory effects in the treatment of transplant rejection. This study aimed to evaluate the effects of ADSCs on the skin graft survival in a human-to-rat xenograft transplantation model and to compare single and multiple injections of ADSCs.
METHODS:
Full-thickness human skin xenografts were transplanted into the backs of Sprague–Dawley rats. The rats were injected subcutaneously on postoperative days 0, 3, and 5. The injections were as follows: triple injections of phosphate-buffered saline (PBS group), a single injection of ADSCs and double injections of PBS (ADSC 9 1 group), and triple injections of ADSCs (ADSC 9 3 group). The immunomodulatory effects of ADSCs on human skin xenografts were assessed.
RESULTS:
Triple injections of ADSCs considerably delayed cell-mediated xenograft rejection compared with the PBS and ADSC 9 1 groups. The vascularization and collagen type 1–3 ratios in the ADSC 9 3 group were significantly higher than those in the other groups. In addition, intragraft infiltration of CD3-, CD4-, CD8-, and CD68-positive cells was reduced in the ADSC 9 3 group. Furthermore, in the ADSC 9 3 group, the expression levels of proinflammatory cytokine interferon-gamma (IFN-c) were decreased and immunosuppressive prostaglandin E synthase (PGES) was increased in the xenograft and lymph node samples.
CONCLUSION
This study presented that triple injections of ADSCs appeared to be superior to a single injection in suppressing cell-mediated xenograft rejection. The immunomodulatory effects of ADSCs are associated with the downregulation of IFN-c and upregulation of PGES in skin xenografts and lymph nodes.
6.Effect of Parenting Stress and Co-worker Support on Work-Life Balance in Nurses Reinstated after Parental Leave
Journal of Korean Academy of Nursing Administration 2020;26(4):331-339
Purpose:
This was a descriptive study aimed at providing basic data on readaptation of hospital nurses after parental leave by exploring levels of parenting stress, co-worker support, and work-life balance and identifying factors affecting work-life balance.
Methods:
A survey using a convenience sampling was conducted with 86 nurses who were within their first year reinstatement after parental leave. Structured questionnaires were used, including the above named main variables and other general characteristics. Data were collected from February to May, 2019 from three tertiary hospitals in Seoul. Data were statistically analyzed using independent t-test, one-way ANOVA, Pearson correlation coefficient, and multiple regression analysis.
Results:
Work-life balance showed a statistical difference depending on the level of education; it showed negative correlations with commuting time and fatigue and positive correlations with the attitude to job rotation, health status, and quality of sleep. There was a negative correlation between parenting stress and work-life balance and a positive correlation between co-worker support and work-life balance. Work-life balance was influenced by fatigue, parenting stress, health status, and co-worker support in the regression model.
Conclusion
Parenting stress, co-worker support, health status and fatigue of nurses reinstated from parental leave should be improved to enhance their work-life balance.
7.Fasiglifam (TAK-875), a G Protein-Coupled Receptor 40 (GPR40) Agonist, May Induce Hepatotoxicity through Reactive Oxygen Species Generation in a GPR40-Dependent Manner.
MinJeong KIM ; Gyo Jeong GU ; Yun Sook KOH ; Su Hyun LEE ; Yi Rang NA ; Seung Hyeok SEOK ; Kyung Min LIM
Biomolecules & Therapeutics 2018;26(6):599-607
Fasiglifam (TAK-875) a G-protein coupled receptor 40 (GPR40) agonist, significantly improves hyperglycemia without hypoglycemia and weight gain, the major side effects of conventional anti-diabetics. Unfortunately, during multi-center Phase 3 clinical trials, unexpected liver toxicity resulted in premature termination of its development. Here, we investigated whether TAK-875 directly inflicts toxicity on hepatocytes and explored its underlying mechanism of toxicity. TAK-875 decreased viability of 2D and 3D cultures of HepG2, a human hepatocarcinoma cell line, in concentration- (>50 μM) and time-dependent manners, both of which corresponded with ROS generation. An antioxidant, N-acetylcysteine, attenuated TAK-875-mediated hepatotoxicity, which confirmed the role of ROS generation. Of note, knockdown of GPR40 using siRNA abolished the hepatotoxicity of TAK-875 and attenuated ROS generation. In contrast, TAK-875 induced no cytotoxicity in fibroblasts up to 500 μM. Supporting the hepatotoxic potential of TAK-875, exposure to TAK-875 resulted in increased mortality of zebrafish larvae at 25 μM. Histopathological examination of zebrafish exposed to TAK-875 revealed severe hepatotoxicity as manifested by degenerated hypertrophic hepatocytes with cytoplasmic vacuolation and acentric nuclei, confirming that TAK-875 may induce direct hepatotoxicity and that ROS generation may be involved in a GPR40-dependent manner.
Acetylcysteine
;
Cell Line
;
Cytoplasm
;
Fibroblasts
;
GTP-Binding Proteins
;
Hepatocytes
;
Humans
;
Hyperglycemia
;
Hypoglycemia
;
Larva
;
Liver
;
Mortality
;
Reactive Oxygen Species*
;
RNA, Small Interfering
;
Weight Gain
;
Zebrafish
8.Analysis of Theory-applied Research in the Journal of Korean Academy of Nursing Administration (2007~2016)
Hyunju JI ; Soyun HONG ; Yi Rang JEONG ; Kyung Hee LEE
Journal of Korean Academy of Nursing Administration 2018;24(2):130-138
PURPOSE: This study was done to analyze the trend of theory application in articles published in the Journal of Korean Academy of Nursing Administration (JKANA) over the last 10 years. METHODS: Four hundred and eighty-five articles were reviewed to determine the scope of theory-applied research. General characteristics, study design and keywords classification by nursing meta-paradigm were analyzed using established analysis framework. RESULTS: Twenty-four articles (4.9%) were identified as theory-applied research publications. More than half of the articles (54.2%) stated that a theoretical framework was used; the number of theories used in the 24 articles was 27 including nine nursing theories. The majority of the studies were conducted in hospital settings. In the keyword classification by nursing meta-paradigm, 28 environment-related keywords were identified but only 7 keywords were related to health. CONCLUSION: The results show that theory application in Korean nursing administration research is very limited. It is necessary to create a positive educational environment for graduate students to learn about nursing theories as well as theories from other disciplines. In addition, different levels of nursing theories should be continuously developed in the field of nursing administration.
Classification
;
Humans
;
Nursing Administration Research
;
Nursing Research
;
Nursing Theory
;
Nursing
9.A Case of Sarcoidosis That Improved upon Discontinuation of Etanercept.
Ji Hyoun KANG ; Joon Ho AHN ; Ji Eun YU ; Ji Eun KIM ; Yi Rang YIM ; Jeong Won LEE ; Kyung Eun LEE ; Dong Jin PARK ; Lihui WEN ; Yong Wook PARK ; Shin Seok LEE
Journal of Rheumatic Diseases 2016;23(3):187-192
A 31-year-old man who had been prescribed etanercept over a 3-year period for treatment of ankylosing spondylitis presented with newly developed dry cough, chills, myalgia, and weight loss. Chest computed tomography showed multiple reticulonodular pulmonary infiltrates and bilateral mediastinal, hilar, and peribronchial lymphadenopathy. Biopsy of a paratracheal lymph node revealed chronic granulomatous inflammation without necrosis, and the serum angiotensin-converting enzyme level was elevated. Sarcoidosis was diagnosed. His laboratory and radiological findings, and clinical symptoms improved only after discontinuation of etanercept without treatment. Although etanercept-induced sarcoidosis is rare, this case report suggests that sarcoidosis should be considered in the differential diagnosis of patients treated with the tumor necrosis factor inhibitor.
Adult
;
Biopsy
;
Chills
;
Cough
;
Diagnosis, Differential
;
Etanercept*
;
Humans
;
Inflammation
;
Lymph Nodes
;
Lymphatic Diseases
;
Myalgia
;
Necrosis
;
Sarcoidosis*
;
Spondylitis, Ankylosing
;
Thorax
;
Tumor Necrosis Factor-alpha
;
Weight Loss
10.The Significance of Ectopic Germinal Centers in the Minor Salivary Gland of Patients with Sjogren's Syndrome.
Kyung Eun LEE ; Ji Hyoun KANG ; Yi Rang YIM ; Ji Eun KIM ; Jeong Won LEE ; Lihui WEN ; Dong Jin PARK ; Tae Jong KIM ; Yong Wook PARK ; Kyung Chul YOON ; Ji Shin LEE ; Shin Seok LEE
Journal of Korean Medical Science 2016;31(2):190-195
We investigated the clinical and biological significance of germinal centers (GC) present in the minor salivary glands of patients with Sjogren's syndrome (SS). Minor salivary gland tissue biopsies from 93 patients with SS were used to identify GC-like structures, which were confirmed by CD21-positive follicular dendritic cell networks. Patients were compared based upon sociodemographics, glandular and extraglandular manifestations, and laboratory findings including autoantibody profiles, complement, and immunoglobulin levels; EULAR SS disease activity index (ESSDAI) and SS disease damage index (SSDDI) were also measured. GC-like structures were observed in 28 of 93 SS patients (30.1%). Mean focus scores and CRP levels were significantly higher in GC-positive patients than in GC-negative patients; GC-positive patients also exhibit a higher prevalence of rheumatoid factor and anti-SS-A/Ro antibodies compared to GC-negative patients. No differences in glandular or extra-glandular manifestations were evident between groups. In conclusion, SS patients with GC-like structures in the minor salivary glands exhibited laboratory profiles significantly different from those of their GC-negative counterparts. Long-term follow-up of these patients will be necessary to determine whether these laboratory abnormalities are predictive of clinical outcomes.
Adult
;
Autoantibodies/blood
;
C-Reactive Protein/analysis
;
Demography
;
Female
;
Germinal Center/*pathology
;
Humans
;
Immunohistochemistry
;
Male
;
Middle Aged
;
Receptors, Complement 3d/metabolism
;
Retrospective Studies
;
Salivary Glands, Minor/*pathology
;
Sjogren's Syndrome/immunology/metabolism/*pathology

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