1.Inhibitory effect of carvacrol on lipopolysaccharide-induced memory impairment in rats
Bombi LEE ; Mijung YEOM ; Insop SHIM ; Hyejung LEE ; Dae hyun HAHM
The Korean Journal of Physiology and Pharmacology 2020;24(1):27-37
Neuroinflammation is an important process underlying a wide variety of neurodegenerative diseases. Carvacrol (CAR) is a phenolic monoterpene commonly used as a food additive due to its antibacterial properties, but it has also been shown to exhibit strong antioxidative, anti-inflammatory, and neuroprotective effects. Here, we sought to investigate the effects of CAR on inflammation in the hippocampus and prefrontal cortex, as well as the molecular mechanisms underlying these effects. In our study, lipopolysaccharide was injected into the lateral ventricle of rats to induce memory impairment and neuroinflammation. Daily administration of CAR (25, 50, and 100 mg/kg) for 21 days improved recognition, discrimination, and memory impairments relative to untreated controls. CAR administration significantly attenuated expression of several inflammatory factors in the brain, including interleukin-1β, tumor necrosis factor-α, and cyclooxygenase-2. In addition, CAR significantly increased expression of brain-derived neurotrophic factor (BDNF) mRNA, and decreased expression of Toll-like receptor 4 (TLR4) mRNA. Taken together, these results show that CAR can improve memory impairment caused by neuroinflammation. This cognitive enhancement is due to the anti-inflammatory effects of CAR medicated by its regulation of BDNF and TLR4. Thus, CAR has significant potential as an inhibitor of memory degeneration in neurodegenerative diseases.
Animals
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Brain
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Brain-Derived Neurotrophic Factor
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Cyclooxygenase 2
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Cytokines
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Discrimination (Psychology)
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Food Additives
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Hippocampus
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Inflammation
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Lateral Ventricles
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Lipopolysaccharides
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Memory
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Necrosis
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Neurodegenerative Diseases
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Neuroprotective Agents
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Phenol
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Prefrontal Cortex
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Rats
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RNA, Messenger
;
Toll-Like Receptor 4
2.Prediction Model for Massive Transfusion in Placenta Previa during Cesarean Section
Jieun KANG ; Hye Sim KIM ; Eun Bi LEE ; Young UH ; Kyoung Hee HAN ; Eun Young PARK ; Hyang Ah LEE ; Dae Ryong KANG ; In Bai CHUNG ; Seong Jin CHOI
Yonsei Medical Journal 2020;61(2):154-160
0.05). The area under the receiver operating characteristics curve (AUC) was 0.922 [95% confidence interval (CI) 0.89–0.95]. In external validation, the discrimination was good, with an AUC value of 0.833 (95% CI 0.70–0.92) for this model. Nomogram calibration plots indicated good agreement between the predicted and observed outcomes, exhibiting close approximation between the predicted and observed probability.CONCLUSION: We constructed a scoring model for predicting massive transfusion during cesarean section in women with placenta previa. This model may help in determining the need to prepare an appropriate amount of blood products and the optimal timing of blood transfusion.]]>
Area Under Curve
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Blood Transfusion
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Calibration
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Cesarean Section
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Cohort Studies
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Discrimination (Psychology)
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Early Intervention (Education)
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Erythrocytes
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Female
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Humans
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Logistic Models
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Maternal Age
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Nomograms
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Placenta Previa
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Placenta
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Placentation
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Postpartum Hemorrhage
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Pregnancy
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ROC Curve
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Ultrasonography
3.Factors Influencing Death Anxiety in Community-Dwelling Elderly: Based on the Ecology Theory
Korean Journal of Hospice and Palliative Care 2019;22(1):30-38
PURPOSE: This study analyzed a path through which factors influencing death anxiety in the community-dwelling elderly, assuming personal organismic factors and microsystemic factors based on the ecology model purported by Belsky (1980). METHODS: This study was performed with 189 elderly people. Data were collected through a self-report questionnaire. The data were analyzed using the SPSS and AMOS programs. RESULTS: The factors influencing death anxiety in the elderly were depression, family support, social network, and familism value, and the explanatory power of these variables was 22%. Death anxiety increased with higher depression, higher familism value, larger social network, and lower family support. Spiritual well-being and elderly discrimination experience had indirect effects on death anxiety, and these effects were mediated by depression. CONCLUSION: Depression, family support, social network, and familism value were found to influence death anxiety in the elderly, and the strongest effect came from depression. To reduce death anxiety in the elderly, it is important to improve their relationship with their family and friends. Moreover, support should be provided by establishing local systems, and intervention should be provided to alleviate depression.
Aged
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Anxiety
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Depression
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Discrimination (Psychology)
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Ecology
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Friends
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Humans
4.What Else Is Needed in the Korean Government's Master Plan for People With Developmental Disabilities?
Korean Journal of Preventive Medicine 2019;52(3):200-204
On September 12, 2018, President Jae-In Moon announced the Comprehensive Plan for Lifelong Care for People with Developmental Disabilities, with representatives from the associated government branches (Ministry of Health and Welfare, Ministry of Education, and Ministry of Employment and Labor) in attendance. The goals of this plan are to provide health, medical, rehabilitative, special education, and social welfare services according to the life-stages of the affected individuals; to reduce parental pressure; to promote social interventions; and to enhance community-level participation in order to create a ‘welfare society in harmony.’ However, in order for the plan to succeed, additional efforts must be made in the following areas. First, an epidemiological survey is needed to understand the scale, prevalence, and incidence of developmental disabilities and to establish an evidence base to support policy development. Second, accurate definitions of developmental disabilities must be established in order to avoid policy discrimination based on impairment type and age. Third, personal evaluations to assess disabled individuals' unmet needs and customized service designs to deliver those needs are required. Fourth, the plan must fulfill the goals of accessibility and fairness that the government intends to provide. Fifth, the government should consider an integrated financial support system and to propose a detailed plan for monetary distributions. Finally, an integrated system that links health, medical, employment, educational, and welfare services must be constructed.
Comprehensive Health Care
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Developmental Disabilities
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Discrimination (Psychology)
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Education
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Education, Special
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Employment
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Financial Support
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Humans
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Incidence
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Intellectual Disability
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Moon
;
Parents
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Policy Making
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Prevalence
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Social Welfare
5.External Validation of the ELAPSS Score for Prediction of Unruptured Intracranial Aneurysm Growth Risk
Mayte Sánchez VAN KAMMEN ; Jacoba P GREVING ; Satoshi KURODA ; Daina KASHIWAZAKI ; Akio MORITA ; Yoshiaki SHIOKAWA ; Toshikazu KIMURA ; Christophe COGNARD ; Anne C JANUEL ; Antti LINDGREN ; Timo KOIVISTO ; Juha E JÄÄSKELÄINEN ; Antti RONKAINEN ; Liisa PYYSALO ; Juha ÖHMAN ; Melissa RAHI ; Johanna KUHMONEN ; Jaakko RINNE ; Eva L LEEMANS ; Charles B MAJOIE ; W Peter VANDERTOP ; Dagmar VERBAAN ; Yvo B W E M ROOS ; René VAN DEN BERG ; Hieronymus D BOOGAARTS ; Walid MOUDROUS ; Ido R VAN DEN WIJNGAARD ; Laura ten HOVE ; Mario TEO ; Edward J ST GEORGE ; Katharina A M HACKENBERG ; Amr ABDULAZIM ; Nima ETMINAN ; Gabriël J E RINKEL ; Mervyn D I VERGOUWEN
Journal of Stroke 2019;21(3):340-346
BACKGROUND AND PURPOSE: Prediction of intracranial aneurysm growth risk can assist physicians in planning of follow-up imaging of conservatively managed unruptured intracranial aneurysms. We therefore aimed to externally validate the ELAPSS (Earlier subarachnoid hemorrhage, aneurysm Location, Age, Population, aneurysm Size and Shape) score for prediction of the risk of unruptured intracranial aneurysm growth. METHODS: From 11 international cohorts of patients ≥18 years with ≥1 unruptured intracranial aneurysm and ≥6 months of radiological follow-up, we collected data on the predictors of the ELAPSS score, and calculated 3- and 5-year absolute growth risks according to the score. Model performance was assessed in terms of calibration (predicted versus observed risk) and discrimination (c-statistic). RESULTS: We included 1,072 patients with a total of 1,452 aneurysms. During 4,268 aneurysm-years of follow-up, 199 (14%) aneurysms enlarged. Calibration was comparable to that of the development cohort with the overall observed risks within the range of the expected risks. The c-statistic was 0.69 (95% confidence interval [CI], 0.64 to 0.73) at 3 years, compared to 0.72 (95% CI, 0.68 to 0.76) in the development cohort. At 5 years, the c-statistic was 0.68 (95% CI, 0.64 to 0.72), compared to 0.72 (95% CI, 0.68 to 0.75) in the development cohort. CONCLUSIONS: The ELAPSS score showed accurate calibration for 3- and 5-year risks of aneurysm growth and modest discrimination in our external validation cohort. This indicates that the score is externally valid and could assist patients and physicians in predicting growth of unruptured intracranial aneurysms and plan follow-up imaging accordingly.
Aneurysm
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Calibration
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Cohort Studies
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Discrimination (Psychology)
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Follow-Up Studies
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Humans
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Intracranial Aneurysm
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Risk Factors
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Subarachnoid Hemorrhage
6.Development of Analytical Method and Validation using HPLC/PDA for Discrimination between Artemisiae Argyi Folium and Artemisiae Iwayomogii Herba
Duc Dat LE ; Duc Hung NGUYEN ; Bing Tian ZHAO ; Byung Sun MIN ; Mi Hee WOO
Natural Product Sciences 2019;25(3):275-283
In this study, we described the new developed method to simultaneously discriminate two herbal drugs of Artemisiae Argyi Folium and Artemisiae Iwayomogii Herba using eight marker compounds (1 – 8) on an HPLC-PDA system. The developed method was applied to quantify the major components of two herbal drugs. The pattern analysis successfully discriminated and evaluated different components between Artemisiae Argyi Folium and Artemisiae Iwayomogii Herba. Results were used for classification of different species from collected samples.
Artemisia
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Classification
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Discrimination (Psychology)
;
Methods
7.Presence of Carotid Plaque Is Associated with Rapid Renal Function Decline in Patients with Type 2 Diabetes Mellitus and Normal Renal Function
Da Hea SEO ; So Hun KIM ; Joon Ho SONG ; Seongbin HONG ; Young Ju SUH ; Seong Hee AHN ; Jeong Taek WOO ; Sei Hyun BAIK ; Yongsoo PARK ; Kwan Woo LEE ; Young Seol KIM ; Moonsuk NAM ;
Diabetes & Metabolism Journal 2019;43(6):840-853
BACKGROUND: Recent evidences indicate that early rapid renal function decline is closely associated with the development and progression of diabetic kidney disease. We have investigated the association between carotid atherosclerosis and rapid renal function decline in patients with type 2 diabetes mellitus and preserved renal function.METHODS: In a prospective, multicenter cohort, a total of 967 patients with type 2 diabetes mellitus and preserved renal function were followed for 6 years with serial estimated glomerular filtration rate (eGFR) measurements. Common carotid intima-media thickness (CIMT) and presence of carotid plaque were assessed at baseline. Rapid renal function decline was defined as an eGFR decline >3.3% per year.RESULTS: Over a median follow-up of 6 years, 158 participants (16.3%) developed rapid renal function decline. While there was no difference in CIMT, the presence of carotid plaque in rapid decliners was significantly higher than in non-decliners (23.2% vs. 12.2%, P<0.001). In multivariable logistic regression analysis, presence of carotid plaque was an independent predictor of rapid renal function decline (odds ratio, 2.33; 95% confidence interval, 1.48 to 3.68; P<0.0001) after adjustment for established risk factors. The model including the carotid plaque had better performance for discrimination of rapid renal function decline than the model without carotid plaque (area under the receiver operating characteristic curve 0.772 vs. 0.744, P=0.016).CONCLUSION: Close monitoring of renal function and early intensive management may be beneficial in patients with type 2 diabetes mellitus and carotid plaques.
Carotid Artery Diseases
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Carotid Intima-Media Thickness
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Carotid Stenosis
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Cohort Studies
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Diabetes Mellitus, Type 2
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Diabetic Nephropathies
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Discrimination (Psychology)
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Follow-Up Studies
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Glomerular Filtration Rate
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Humans
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Logistic Models
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Prospective Studies
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Risk Factors
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ROC Curve
8.Identification of Candida Species Using 26S Ribosomal RNA Gene Sequencing in Patients with Periodontitis
Nebras Nasir AL-DABBAGH ; Wissam Hamid AL-JANABI ; Mohammed Baqur Sahib AL-SHUHAIB
Journal of Bacteriology and Virology 2019;49(4):212-220
The infection with Candida spp. for oral cavity is being increasingly reported. However, its variations have not yet been specifically described in periodontitis. The present study was conducted to use an uniplex 26S rRNA-based amplicons to detect and discriminate Candida using only one pair of ribosomal primers. A total of 50 patients with chronic periodontitis was involved in the study. Pure Candida colonies were isolated from 23 patients and genomic DNA was extracted, and PCR was conducted. Direct DNA sequencing followed by comprehensive phylogenetic analyses were performed to confirm the identity of Candida colonies. Results indicated that the ration of Candida-infected patients was 46%, with a high prevalence of C. albicans, followed by remarkably lower ratios of C. parapsilosis, C. glabrata, C. kefyr, and C. dubliniensis respectively. Phylogenetic analyses indicated obvious discrimination amongst the analyzed Candida species as each observed species occupied a distinctive phylogenetic position. The current results reported a simple, efficient, and low-cost detection of five species of Candida without the need for other costly techniques of molecular screening. The current findings may help dentists to easily take a snapshot of the patterns of Candida infection in periodontitis cases to assess the nature and grade of infection.
Candida
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Chronic Periodontitis
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Dentists
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Discrimination (Psychology)
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DNA
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Genes, rRNA
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Humans
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Mass Screening
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Mouth
;
Periodontitis
;
Polymerase Chain Reaction
;
Prevalence
;
RNA, Ribosomal
;
Sequence Analysis, DNA
9.A Topic Modeling Analysis for Online News Article Comments on Nurses' Workplace Bullying
Jiyeon KANG ; Soogyeong KIM ; Seungkook ROH
Journal of Korean Academy of Nursing 2019;49(6):736-747
PURPOSE: This study aimed to explore public opinion on workplace bullying in the nursing field, by analyzing the keywords and topics of online news comments.METHODS: This was a text-mining study that collected, processed, and analyzed text data. A total of 89,951 comments on 650 online news articles, reported between January 1, 2013 and July 31, 2018, were collected via web crawling. The collected unstructured text data were preprocessed and keyword analysis and topic modeling were performed using R programming.RESULTS: The 10 most important keywords were “work” (37121.7), “hospital” (25286.0), “patients” (24600.8), “woman” (24015.6), “physician” (20840.6), “trouble” (18539.4), “time” (17896.3), “money” (16379.9), “new nurses” (14056.8), and “salary” (13084.1). The 22,572 preprocessed key words were categorized into four topics: “poor working environment”, “culture among women”, “unfair oppression”, and “society-level solutions”.CONCLUSION: Public interest in workplace bullying among nurses has continued to increase. The public agreed that negative work environment and nursing shortage could cause workplace bullying. They also considered nurse bullying as a problem that should be resolved at a societal level. It is necessary to conduct further research through gender discrimination perspectives on nurse workplace bullying and the social value of nursing work.
Bullying
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Data Mining
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Discrimination (Psychology)
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Nursing
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Public Opinion
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Sexism
10.External Validation of 3 Risk Scores in Adults with Congenital Heart Disease
Bunty K RAMCHANDANI ; Luz POLO ; Raúl SÁNCHEZ ; Juvenal REY ; Alvaro GONZÁLEZ ; Jesús DÍEZ ; Angel AROCA
Korean Circulation Journal 2019;49(9):856-863
BACKGROUND AND OBJECTIVES: Adults with congenital heart disease (CHD) are an increasing group of patients thanks to the survival of over 85% of children with CHD. 20% of these patients shall warrant a surgical procedure during their life span. However, currently there is no one risk score that assess correctly the mortality of these procedures. Thus, we analyse the risk scores used at our institution. METHODS: From May 1991 till June 2017, 608 procedures in adults with CHD were performed. The 3 risk scores (risk adjustment for congenital heart surgery [RACHS-1], Aristotle, and Euroscore I) of each procedure were analysed. We used area under the receiver operating characteristic curve (c-index) to measure model discrimination, and Hosmer-Lemeshow (H-L) statistic along with calibration plots to measure calibration. RESULTS: There was no statistical difference between the area under the curve for the 3 scores (χ²=0.58 with 2 df, p=0.750). There was no evidence of lack of fit for RACHS-1 (H-L, χ²=2.61; p=0.271) and Aristotle score (H-L, χ²=5.69; p=0.459). However, there was evidence in lack of calibration in the Euroscore I scoring system (H-L, χ²=33.69; p<0.001). The calibration slope for RACHS-1 was 0.912, for Aristotle (stratified in risk groups) was −0.14 and for Euroscore 1 (stratified in risk groups) was 0.46. CONCLUSIONS: RACHS-1 seems to be best risk scoring system for calculating mortality applied to surgery in adults with CHD.
Adult
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Calibration
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Child
;
Discrimination (Psychology)
;
Heart Defects, Congenital
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Humans
;
Mortality
;
ROC Curve
;
Thoracic Surgery

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