Validity of OSCE Evaluation Using the FLEX Model of Blended Learning

Background@#For OSCE (Objective Structured Clinical Examination) scoring, medical schools must bring together many clinical experts at the same place, which is very risky in the context of the coronavirus pandemic. However, if the FLEX model with the properties of self-directed learning and offline feedback is applied to OSCE, it is possible to provide a safe and effective evaluation environment for both universities and students through experts’ evaluation of selfvideo clips of medical students. The present study investigated validity of the FLEX model to evaluate OSCE in a small group of medical students. @*Methods@#Sixteen 3 rd grade medical students who failed on OSCE were required to take a make-up examination by videotaping the failed items and submitting them online. The scores between original examination and make-up examination were compared using Paired Wilcoxon Signed Rank Test, and a post-hoc questionnaire was conducted. @*Results@#The score for make-up examination was significantly higher than those for original examination. The significance was maintained even when the score was compared by individual domains of skills and proficiency. In terms of preference, students were largely in favor of self-videotaped examination primarily due to the availability of self-practice. @*Conclusion@#The FLEX model can be effectively applied to medical education, especially for evaluation of OSCE.

The relationship between low survival and acute increase of tumor necrosis factor α expression in the lung in a rat model of asphyxial cardiac arrest / 대한해부학회지

Cardiac arrest (CA) is sudden loss of heart function and abrupt stop in effective blood flow to the body. The patients who initially achieve return of spontaneous circulation (RoSC) after CA have low survival rate. It has been known that multiorgan dysfunctions after RoSC are associated with high morbidity and mortality. Most previous studies have focused on the heart and brain in RoSC after CA. Therefore, the aim of this research was to perform serological, physiological, and histopathology study in the lung and to determine whether or how pulmonary dysfunction is associated with low survival rate after CA. Experimental animals were divided into sham-operated group (n=14 at each point in time), which was not subjected to CA operation, and CA-operated group (n=14 at each point in time), which was subjected to CA. The rats in each group were sacrificed at 6 hours, 12 hours, 24 hours, and 2 days, respectively, after RoSC. Then, pathological changes of the lungs were analyzed by hematoxylin and eosin staining, Western blot and immunohistochemistry for tumor necrosis factor α (TNF-α). The survival rate after CA was decreased with time past. We found that histopathological score and TNF-α immunoreactivity were significantly increased in the lung after CA. These results indicate that inflammation triggered by ischemia-reperfusion damage after CA leads to pulmonary injury/dysfunctions and contributes to low survival rate. In addition, the finding of increase in TNF-α via inflammation in the lung after CA would be able to utilize therapeutic or diagnostic measures in the future.

Influence of Family Communication and Family Function to their Body Mass Index among Medical Students / 의료커뮤니케이션

BACKGROUND: Association between obesity and family communication was a controversial issue in previous studies. Previous studies were done on adolescents and adults in overall. This study was done to figure out association between obesity of medical school students specifically and their family function including communication and to help them on the treatment of obese patients.METHODS: A self-reported questionnaire was filled in by 97 medical school students in Busan. They were asked to answer forty different questions including their height and weight. Association between BMI and family communication was studied using FACE III, Family APGAR and KOBES.RESULTS: Among 97 correspondents, 30 of them were found to be overweight to obese. There was a significant difference in number of siblings, amount of food intake, meal time and recent weight reduction trial among overweight-obese group and normal group. The mean Family APGAR score of normal group was higher than overweight-obese group. Flexibility and connectivity score in FACE III of normal group was also higher than overweight-obese group. Among all the factors considered, recent weight reduction trial was the only factor that was statistically significant in accordance with normal weight.CONCLUSION: There was significant relation between flexibility and connectivity of family function with overweight and obesity. In order to investigate further relation and significance on separate gender, larger study samples are needed. Future studies are suggested regarding gender differences on relationship between overweight-obesity and family function in medical school students.

Doctor's images in the Korean medical drama viewed from the perspective of Medical Professionalism / 의료커뮤니케이션

BACKGROUND: TV dramas can affect the identity of a person or group that the public perceives by presenting virtualized characters and events. The image of a doctor in the medical drama can influence the identity of a contemporary physician group. The authors analyze several medical dramas in Korea from the viewpoint of medical professionalism and try to contribute to the enlightment of the image of the doctor.METHODS: Among the medical dramas that have been broadcast since medical professions began to appear, 5 dramas were selected for analysis. The author reviewed them by four major areas of medical professionalism: contribution to society, compliance with the four principles of medical ethics, professional autonomy, and recognition from society and scored an upper-middle-lower grade.RESULTS: ‘Contribution to society’ and ‘recognition from society’ were well-founded in all dramas, except ‘Doctor Stranger’. In the case of ‘compliance with the four principles of medical ethics’, ‘Golden Time’ and ‘Romantic doctors Kim’ most frequently violated it. The ‘medical ethics principle’ was frequently infringed on ‘Doctor Strangers’, In the case of ‘Doctors’, the violation of the ethics principle was reduced as the conflict between the drama characters were emphasized. ‘Professional autonomy’ is best demonstrated by stubborn doctors appearing in ‘Golden Time’ and ‘Romantic Doctors Kim’.CONCLUSION: It is necessary to criticize the doctors image in the current drama from the view point of the medical professionalism and to continue to teach the drama writer about medical professionalism.

Decrease in glucose transporter 1 levels and translocation of glucose transporter 3 in the dentate gyrus of C57BL/6 mice and gerbils with aging / 한국실험동물학회지

In the present study, we compared the cell-specific expression and changes protein levels in the glucose transporters (GLUTs) 1 and 3, the major GLUTs in the mouse and gerbil brains using immunohistochemistry and Western blot analysis. In both mouse and gerbils, GLUT1 immunoreactivity was mainly found in the blood vessels in the dentate gyrus, while GLUT3 immunoreactivity was detected in the subgranular zone and the molecular layer of the dentate gyrus. GLUT1-immunoreactivity in blood vessels and GLUT1 protein levels were significantly decreased with age in the mice and gerbils, respectively. In addition, few GLUT3-immunoreactive cells were found in the subgranular zone in aged mice and gerbils, but GLUT3-immunoreactivity was abundantly found in the polymorphic layer of dentate gyrus in mice and gerbils with a dot-like pattern. Based on the double immunofluorescence study, GLUT3-immunoreactive structures in gerbils were localized in the glial fibrillary acidic protein-immunoreactive astrocytes in the dentate gyrus. Western blot analysis showed that GLUT3 expression in the hippocampal homogenates was slightly, although not significantly, decreased with age in mice and gerbils, respectively. These results indicate that the reduction in GLUT1 in the blood vessels of dentate gyrus and GLUT3 in the subgranular zone of dentate gyrus may be associated with the decrease in uptake of glucose into brain and neuroblasts in the dentate gyrus. In addition, the expression of GLUT3 in the astrocytes in polymorphic layer of dentate gyrus may be associated with metabolic changes in glucose in aged hippocampus.

Development of a Modified Korean East Asian Student Stress Inventory by Comparing Stress Levels in Medical Students with Those in Non-Medical Students / 가정의학회지

BACKGROUND: Medical students are usually under more stress than that experienced by non-medical students. Stress testing tools for Korean medical students have not been sufficiently studied. Thus, we adapted and modified the East Asian Student Stress Inventory (EASSI), a stress testing tool for Korean students studying abroad, and verified its usefulness as a stress test in Korean university students. We also compared and analyzed stress levels between medical and non-medical students. METHODS: A questionnaire survey was conducted on medical and non-medical students of a national university, and the responses of 224 students were analyzed for this study. Factor analysis and reliability testing were performed based on data collected for 25 adapted EASSI questions and those on the Korean version of the Global Assessment of Recent Stress Scale (GARSS). A correlation analysis was performed between the 13 modified EASSI questions and the GARSS, and validity of the modified EASSI was verified by directly comparing stress levels between the two student groups. RESULTS: The 13 questions adapted for the EASSI were called the modified EASSI and classified into four factors through a factor analysis and reliability testing. The Pearson's correlation analysis revealed a significant correlation between the modified EASSI and the Korean version of the GARSS, suggesting a complementary strategy of using both tests. CONCLUSION: The validity and reliability of the EASSI were verified. The modified Korean EASSI could be a useful stress test for Korean medical students. Our results show that medical students were under more stress than that of non-medical students. Thus, these results could be helpful for managing stress in medical students.

North Korean refugee doctors' preliminary examination scores / 한국의학교육

PURPOSE: Although there have been studies emphasizing the re-education of North Korean (NK) doctors for post-unification of the Korean Peninsula, study on the content and scope of such re-education has yet to be conducted. Researchers intended to set the content and scope of re-education by a comparative analysis for the scores of the preliminary examination, which is comparable to the Korean Medical Licensing Examination (KMLE). METHODS: The scores of the first and second preliminary exams were analyzed by subject using the Wilcoxon signed rank test. The passing status of the group of NK doctors for KMLE in recent 3 years were investigated. The multiple-choice-question (MCQ) items of which difficulty indexes of NK doctors were lower than those of South Korean (SK) medical students by two times of the standard deviation of the scores of SK medical students were selected to investigate the relevant reasons. RESULTS: The average scores of nearly all subjects were improved in the second exam compared with the first exam. The passing rate of the group of NK doctors was 75%. The number of MCQ items of which difficulty indexes of NK doctors were lower than those of SK medical students was 51 (6.38%). NK doctors' lack of understandings for Diagnostic Techniques and Procedures, Therapeutics, Prenatal Care, and Managed Care Programs was suggested as the possible reason CONCLUSION: The education of integrated courses focusing on Diagnostic Techniques and Procedures and Therapeutics, and apprenticeship-style training for clinical practice of core subjects are needed. Special lectures on the Preventive Medicine are likely to be required also.

Can the multiple mini-interview predict academic achievement in medical school? / 한국의학교육

PURPOSE: The purpose of this study was to determine whether the multiple mini-interview (MMI) predicts academic achievement for subjects in a medical school curriculum. METHODS: Of 49 students who were admitted in 2008, 46 students finished the entire medical education curriculum within 4 years. We calculated the Pearson correlation coefficients between the total MMI score of the 46 graduates and their academic achievements in all subjects of the curriculum. RESULTS: The correlation coefficients between total MMI score and academic achievement in Medical Interview and History Taking, Problem-Based Learning, Doctoring I, and Clinical Practice of Surgery ranged from 0.4 to 0.7, indicating that they were moderately related. The values between total MMI score and achievement in Research Overview, Technical and Procedural Skills, Clinical Performance Examinations 1 and 3, Clinical Practice of Laboratory Medicine and Psychiatry, Neurology, and Orthopedics ranged from 0.2 to 0.4, which meant that they were weakly related. CONCLUSION: MMI score can predict medical student' academic achievement in subjects in the medical humanities and clinical practice.

Experience of Teaching a Class with a Film: Cognitive Changes with Regard to HIV / 한국의학교육

PURPOSE: The aim of this study was to describe our experience of a class, using a film that deals with the social issues of human immunodeficiency virus (HIV), and the results of surveys before and after the class. METHODS: One hundred fifty-six second-year medical students were surveyed with self-questionnaires (9-point Likert scale) before, immediately after, and 2 years after a class that viewed a film ('Philadelphia', 1993). The same survey, comprising 4 items, was administered to 81 non-medical students in the same university. RESULTS: In 156 medical students, 153 (98%) answered the questionnaires. Before the class, there was no significant difference between medical and non-medical students with regard to the cognition of social isolation of HIV-infected persons (4.13 vs. 4.43, p=0.307). immediately after the class, medical student' cognition changed significantly in the positive direction on all items, irrespective of age, sex, and course grade. Two years after the class, this positive effect remained significant on 2 items: 'social isolation of HIV-infected persons' and 'casual contact with an HIV-infected person.' CONCLUSION: A film can be used to reinforce medical education in the affective domain.

Correlations of Communication and Interpersonal Skills between Medical Students and Residents / 한국의학교육

PURPOSE: Medical students' communication and interpersonal skills can be evaluated by standardized patients in a clinical performance examination (CPX). The purpose of this study is to investigate which communication and interpersonal skills are more closely correlated between medical students and residents. METHODS: This study included 2nd-year residents in 2009 who took the eight-station CPX as 4th-year medical students in 2006. In-patients who were cared for by the residents were asked the seven items related to interpersonal and communication skills. The correlation between the scores of these seven items in the 2006 CPX and the scores in the 2009 patient survey was evaluated. RESULTS: Twenty-six residents, 11 in medical wards and 15 in surgical wards, participated in the study. The medical students' total scores tended to be correlated with the residents' scores (r=0.381, p=0.055). There was significant correlation between the scores for students and residents for 'Explaining more explicably' (r=0.470, p=0.015), and marginally significant correlation (r=0.385, p=0.052) for 'Listening attentively.' There was no significant correlation for the other five items. CONCLUSION: 'Explaining more explicably' and 'Listening attentively', these skills were more closely correlated between medical students and residents. These basic communication skills should be included in graduate or licensing evaluations.

Association between Smoking Status, C-reactive Protein and the Metabolic Syndrome in Long-term Smokers among Middle-aged Korean Men

BACKGROUND: There are few studies about association between the metabolic syndrome and smoking status (onset of smoking, duration, number of cigarettes per day, pack-years) in long-term smokers. And CRP level, a risk factor of the metabolic syndrome, is known to be higher in smokers than in non-smokers. This study was done to assess the association of smoking status and CRP level with the metabolic syndrome in long-term smokers. METHODS: Healthy men aged 40 years old or more who visited the Samsung Medical Health Promotion Center were selected. We examined the participants' clinical characteristics by using self-reporting questionnaires, laboratory data, and Bruce treadmill test. We estimated the prevalence of the metabolic syndrome and identified the association between smoking status, CRP, and the metabolic syndrome by multiple logistic regression method. RESULTS: The prevalence of the metabolic syndrome was higher in the long-term smokers (21.4%) than in the non-smokers (17.5%). The odds ratios of developing the metabolic syndrome were 2.46 (95% CI 1.31~4.62) and 2.57 (95% CI 1.20~5.50) in men who smoked 20~29 and 30 or more cigarettes, respectively, compared with those who smoked 1~9 cigarettes. And the odd ratio was 1.41 (95% CI 1.01~1.97) in men who had high CRP level (> or =0.3 mg/dl) compared with the normal CRP group. The number of cigarettes had statistically positive association with the CRP level (coefficient beta=0.059; P<0.05). CONCLUSION: The prevalence of the metabolic syndrome was higher in the long-term smokers than in the non-smokers, and proportional to the number of cigarettes in the long-term smokers. The number of cigarettes smoked per day was correlated positively to the CRP level in the middle-aged Korean men.

Home-based Hospice-palliative Care Service Administered by University-based Family Practice

BACKGROUND: Systematic care is not well provided in patients with terminal cancer and their families in Korea. Unnecessary hospitalization, multiple emergency room visits for controlling acute symptoms and the use of unqualified alternative care services are typical health care utilization patterns in such patients. We operated home-based hospice-palliative care services to help these patients and their families at a university-based family practice setting. Our experience is presented for the development of care model of hospice-palliative care services. METHODS: We investigated the demographic characteristics, the clinical findings and the utilization of medical care services of 72 terminally ill cancer patients before and after enrollment to hospice-palliative care unit from April 25, 2003 to April 21, 2005. RESULTS: The frequency of emergency room visits and the number of hospitalizations were decreased by Wicoxon Signed Ranks Test after the enrollment to home-based hospice-palliative care service unit. The duration of emergency room visits decreased from 7.7 hours to 0.3 hours and the duration of hospitalization decreased from 6.5 days to 0.0 days in median. The cost per emergency room visits decreased from 268,801 won to 153,816 won and the cost per hospitalization decreased from 285,491 won to 106,294 won in median. CONCLUSION: Home-based hospice-palliative care services can be an efficient and effective model for the care of terminally ill cancer patients at a low cost.