Medical history was an important part of medicine in the West from antiquity, through the Middle Ages, and until the Renaissance. Hippocrates, Galen, and Avicenna were historical figures, but they dominated the medicine of the Western world at least until Renaissance. The medicine of the past, which did not become history, still remained an important part of present medicine. In the 19th century, medicine in the past is now relativized as an object of history. At the same time, the 'practicality' of medical science was emphasized. The practicality referred to here means that, unlike previous times, medicine in the past has been historicalized, but it can provide practical help to current medicine. In particular, in the era of positivism that dominated the late 19th century, this practicality was a core value of medical history. In the 20th century, the era of scientific medicine, the new role is given to medical history. It was to give a integrated view on contemporary medicine which was subdivided into many specialized fields. Along with this, medical history, once a main part of medicine, moves to the field of history. At the same time, the rise of medical humanities in medical education becomes an opportunity to redefine the role of medical history. Seeking productive cooperation with other humanities and social sciences that deal with medical issues, such as medical anthropology, medical sociology, and literature, will be a new task given to medical history today.

A crucial gap in the medical history of the Korean War is the history of psychiatry during the Korean War. War puts those who participate in it through physical and mental extremes, inflicting not only physical injuries but also psychological trauma and damage. However, studies of the medical aspects of the Korean War have been limited to topics related to physical injuries and their treatment, and there are no studies that systematically summarize the traumatic effects on the human mind thrown into the midst of the war, the consequences of these effects, and the medical efforts made to deal with these problems. As the Korean War was fought only five years after the end of the Second World War, the experiences and achievements of the Second World War were used in the Korean War. In terms of personnel, many of the soldiers who fought in the Second World War also fought in the Korean War. This continuity with the Second World War had both positive and negative aspects. On the positive side, treatment and transport systems were quickly put in place to respond to the large numbers of soldiers with psychiatric problems on the front lines early in the war. This is an example of a positive use of the legacy of the Second World War. On the other hand, the negative side of the coin was the much higher frequency of psychiatric symptoms among veterans of the Second World War. This could be explained by the fact that the psychological trauma experienced on the battlefield during the Second World War remained latent and was reactivated in the Korean War as a kind of conditioned reflex. In addition, the brainwashing of prisoners of war and their subsequent psychological problems are also characteristic of the Korean War in the context of the Cold War. These psychiatric features of the Korean War will provide a useful historical example for understanding and helping those who are inevitably involved in war and suffer from mental distress.

Objective: This study evaluated the anxiety, work, and socioeconomic burden of emergency physicians (EP) during the coronavirus disease 2019 (COVID-19) pandemic in South Korea. Methods: A cross-sectional observational study was conducted using data from the 2020 Korean Emergency Physician Survey that included the following domains: hospital resources of suspected COVID-19 patients, availability of personal protective equipment, levels of home and workplace anxiety, the severity of work burnout, identification of stressors, changes in personal environments, and measures to decrease stress/anxiety. Results: Totally, 855 eligible participants were enrolled in the study. A statistically significant deterioration was observed in response to decreased working income or an unstable employment situation (0.46±0.88 points). The median number of patients with confirmed COVID-19 was 2.72. The risk of infection during emergency department (ED) work was found to be significantly increased (P<0.01). Of the 751 respondents (91.4%) who reported patient contact during their survey phase, 516 (62.8%) reported having taken the COVID-19 reverse transcription polymerase chain reaction test. The major factors that affected worsening of the work burden were determined to be unsuitable inter-hospital transfer arrangements for febrile patients (3.46±1.06 before vs. 1.99±1.16 after the pandemic, P<0.01) and delayed consultation for patients with fever or respiratory symptoms in the ED (3.20±1.06 before vs. 2.66±1.10 after the pandemic, P<0.01). Conclusion During the peak phase, the COVID-19 pandemic induced substantial workplace and socioeconomic burdens for Korean EPs. The sustained impact of the pandemic on the wellness of EPs deserves further investigation to guide targeted interventions.

Objective: Machine learning is emerging as a new alternative in various scientific fields and is potentially a new method of interpretation. Using the Light Gradient Boosting Machine (LightGBM), we analyzed the factors that influence the rechoice of emergency medicine responders. The survey is a cross-sectional study which provides an accurate understanding of a responder's current status. However, the results may vary depending on the composition, format, and question, and the relationship between the answers may be unclear. Methods: This study evaluated the modified 2020 Korean Emergency Physician Survey raw data. We applied the preferred model for random relationship check, random forest, support vector machine, and LightGBM models. The stacking ensemble model was used for the final decision process. Results: ‘It is fun working in an emergency room’was the most selected response factor for re-choice, followed by ‘interesting major’. The physical burden of age and lack of identity had a negative impact, whereas burnout and emotional stress factors had a lesser effect. Anxiety caused by the coronavirus disease 2019 (COVID-19) is thought to have a significant impact on this decision making. Conclusion Establishing the identity of emergency medicine and being faithful to its fundamental mission is a way to increase the rate of re-choice. Decreasing the burden of workload modified according to age is recommended to establish career longevity. The method of machine learning presents us with a new possibility of checking the relevance of survey results quickly and easily.

Objective: It has been reported that emergency physicians experience high levels of depression and psychological burnout due to night shifts and tend to consider early retirement. This study intended to check working hours and intensity, individual health, satisfaction, and overall welfare, given the increase in the numbers of emergency physicians. Methods: The study used the results of the ‘2020 Korean Emergency Physician Survey (KEPS)’ conducted from January 15 to February 26, 2021, which targeted 2,138 emergency physicians registered with the Korean Society of Emergency Medicine. The survey was conducted online through the web and mobile application. Results: One thousand three hundred seven out of the 2,167 emergency physicians (60.3%) registered at the society responded. The average age of the respondents was 42.6 years, and there were 1,148 male emergency physicians and 158 female emergency physicians. The average professional experience was 8.2 years, with 325 professors, 122 commissioned doctors, 648 public servants of which 90 had military service, and 45 medical practitioners. Conclusion In conclusion, the number of working hours of emergency physicians showed a decreasing trend compared to 2010 and 2015. However, emergency physicians often expected early retirement. This suggests that, while the absolute working hours are decreasing, the actual working intensity has not decreased. For the proper development of the emergency medical system, it is necessary to establish a stable working environment for emergency physicians. A systematic study is needed on the working hours and work intensity of emergency physicians.

Objective: As the history of emergency medicine grows longer, emergency medicine specialists are observed to comprise various age groups. There have been no prior studies on the generation shift analysis of emergency medicine specialists. Our study is designed to identify the characteristics of each generation and predict the generation shift in emergency medicine physicians. Methods: The analysis was based on the results of the 2020 survey of emergency medicine specialists. The study was conducted on 1,307 respondents and finally, the responses of 967 people were analyzed after excluding 199 who were not in charge of emergency room treatments and 141 who gave incomplete responses. The respondents were divided into four groups based on the following generations: first generation (1996-1999), second generation (2000-2008), third generation (2009-2014), and fourth generation (2015-2020), classified by the year in which they acquired their emergency medicine board license. The intergenerational difference analysis was done using the Kruskall-Wallis test. Results: The first generation was characterized by a high proportion of university hospital professors, large non-clinical activity hours, a few night shifts, higher social contributions, low satisfaction with the training and education environment, and a high retirement age compared to the later generations. In the second generation, the characteristics of the first, third, and fourth generations were generally mixed. The third and fourth generations showed similar characteristics overall, though there were differences in some categories. Conclusion There were significant differences by generation in the working environments, motivation for application, and retirement age. This is the first study that quantifies generational differences. Considering these trends, a discussion about the work environment needs to be initiated.