Medicine at mass gatherings: current progress of preparedness of emergency medical services and disaster medical response during 2020 Tokyo Olympic and Paralympic Games from the perspective of the Academic Consortium (AC2020).

Mass gatherings are events characterized by "the concentration of people at a specific location for a specific purpose over a set period of time that have the potential to strain the planning and response resources of the host country or community." Previous reports showed that, as a result of the concentration of people in the limited area, injury and illness occurred due to several factors. The response plan should aim to provide timely medical care to the patients and to reduce the burden on emergency hospitals, and to maintain a daily emergency medical services system for residents of the local area. Although a mass gathering event will place a significant burden on the local health-care system, it can provide the opportunity for long-term benefits of public health-care and improvement of daily medical service systems after the end of the event. The next Olympic and Paralympic Games will be held in Tokyo, during which mass gatherings will occur on a daily basis in the context of the coronavirus disease (COVID-19) epidemic. The Academic Consortium on Emergency Medical Services and Disaster Medical Response Plan during the Tokyo Olympic and Paralympic Games in 2020 (AC2020) was launched 2016, consisting of 28 academic societies in Japan, it has released statements based on assessments of medical risk and publishing guidelines and manuals on its website. This paper outlines the issues and countermeasures for emergency and disaster medical care related to the holding of this big event, focusing on the activities of the academic consortium.

Reliability and validity assessment of the Japanese version of the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU).

OBJECTIVE: Delirium may lead to adverse outcomes in patients with serious conditions, but is often under-diagnosed due to inadequate screening. The Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) is an established method for assessing delirium in the ICU. The validity and reliability of the Japanese version of the CAM-ICU has not, however, been verified, and we undertook this study to verify these parameters. RESEARCH METHODOLOGY: CAM-ICU validity and reliability were assessed in two Japanese ICUs. Using the evaluation of the DMS-IV-TR in the psychiatrists group as the standard criteria for delirium diagnosis, we compared the evaluation of the Japanese version of the CAM-ICU between the research nurses group and the staff nurses group. RESULTS: According to DSM-IV-TR criteria, the prevalence of delirium was 22.0%, and according to CAM-ICU delirium was found in 22.0% with Research Nurses and 19.5% with Staff Nurses. CAM-ICU sensitivity ratings were 83% and 78%, while their specificity ratings were 95% and 97%, respectively. The Kappa inter-rater reliability was good (κ=0.85), and Cronbach's alpha coefficient was 0.69 (95% CI: 0.57-0.79). Mean rating time for the CAM-ICU was 2.5-2.8 minutes for Research Nurses and Staff Nurses, respectively. CONCLUSION: The Japanese version of the CAM-ICU has comparable validity and reliability as a delirium assessment tool in surgical patients in two Japanese ICUs. With training, CAM-ICU can be incorporated into daily clinical practice.

Impacts of the introduction of a triage system in Japan: a time series study.

The aim of the present study was to measure and compare the effectiveness of nursing triage before and after introduction of the Japanese Triage and Acuity Scale (JTAS), the Japanese version of the Canadian Triage and Acuity Scale (CTAS), during emergency treatment. Surveys of triage nurses and emergency physicians were conducted before and after JTAS introduction. Respondents were triage nurses (before 112 cases, after 94 cases), emergency physicians (before 50, after 41), and triaged patients (before 1057, after 1025) from seven separate emergency medical facilities. The results showed that nursing triage using the JTAS shortened "time from registration to triage" by 3.8min, "triage duration" by 1min, "time from registration to physician" by 11.2min, and "waiting time perceived by patients to see a physician" by 18.6min (p<0.001). The difference in assigned level of urgency between triage nurses and emergency physicians decreased from 34.2% to 12.2% (p<0.001), over-triage decreased from 24.7% to 8.6% (p<0.001), and under-triage decreased from 9.5% to 3.6% (p<0.001). Furthermore, assessment agreement between triage nurses and emergency physicians increased significantly, from weighted κ=0.486 to weighted κ=0.820. These findings suggest that the introduction of the JTAS promoted more effective nursing triage and medical care.

Grief reaction model of families who experienced acute bereavement in Japan.

The present study clarified the structure of factors that affect grief reactions of families who experienced acute bereavement in critical care settings in Japan. Sixty-four families who experienced acute bereavement answered a questionnaire. The questionnaire included the Miyabayashi Grief Measurement, recognition of bereavement, Multidimensional Scale of Perceived Social Support, and the Tri-Axial Coping Scale. We analyzed the causal structure regarding the relationship of stress recognition, coping, and grief reactions using structural equation modeling. The greatest influence on grief reactions of bereaved families was stress recognition. Factors that influenced stress recognition were subjective degree of sadness, acceptance of bereavement, regret for bereavement, and recognition of a peaceful death. These results show that the quality of end-of-life care in critical care settings is an important factor that affects bereaved families' stress recognition and grief reactions. Nurses and medical staff must provide end-of-life care to help family members accept the death of their loved one and reduce regrets as much as possible.

Development of a comprehensive scoring system to measure multifaceted nursing workloads in ICU.

A new scoring system, the comprehensive nursing intervention score (CNIS), was developed to quantify the overall workload of diverse nursing activities in the intensive care unit (ICU). A total of 88 nursing items were listed. With the cooperation of 20 skilled ICU nurses, a three-round Delphi survey was conducted to assign a four-grade workload score to each item from five aspects: number of nurses required, muscular exertion, mental stress, skill, and intensity. After the survey, 15 unnecessary items were deleted. Appropriateness of the assigned scores was confirmed by surveying 118 nurses in other ICU. Within-individual reproducibility, examined in 44 nurses, was summarized as a mean kappa-coefficient of 0.65. Time required for each job was recorded and added as the sixth aspect of the workload. Thus, final CNIS gave six subscores (0-3) plus one overall score (3-18) to each of the 73 job items. The CNIS was confirmed as truly representing overall nursing workload by applying it to the daily care of 107 patients.

Psychological hardiness, workplace stress and related stress reduction strategies.

Contending with stressful situations in the workplace is a common occurrence for all health care providers. Stress has numerous devastating effects on the workplace environment, as well as upon individuals who become victims of stress. However, enhancing psychological hardiness may facilitate an individual's ability to deal with workplace stress. Psychological hardiness, a personality style consisting of commitment, control and challenge, encourages human survival and the enrichment of life through development. This article provides an overview of psychological hardiness and workplace stress, and proposes strategies that one can use to enhance commitment, control and challenge in an effort to reduce the impact of stress.