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Background Although attention has recently been afforded to home injury prevention for young children, we often encounter young children who have experienced indoor injuries at places other than the home. We aimed to identify characteristics of unintentional indoor injuries that occurred when young children were not at home. Methods We retrospectively reviewed the medical records of young children (aged <6 years) with indoor injuries from January to June 2017. We classified patients injured in hotel rooms as the “Hotel group” and compared them to patients injured at home (“Home group”). Results Among 102 patients who met the study criteria, 33 patients (32.4%) were classified as the Hotel group. Falls were the most frequent cause of injury in both groups (Home, 56.5% versus Hotel, 87.9%). Falls from beds were more likely to happen in hotel rooms (1.4% versus 48.5%). In regard to fall‐associated injuries, head and / or facial injury was most frequent in both groups (Home, 92.3% versus Hotel, 89.7%). A suture and follow‐up were less likely in the Home group than in the Hotel group (18.8% versus 42.4%, 39.1% versus 69.7%, respectively). Conclusions In hotel rooms, head and / or facial injuries due to falling from a bed were the most common types of injury, and they often needed more invasive procedures than home injuries. Injuries that tended to occur in hotel rooms are more predictable than home injuries. Modification of the surrounding environment has the potential to prevent unintentional injuries not only in the home environment but also in hotel rooms.

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Objective: Our tertiary emergency medical center is located near an amusement park, with an emergency physician from our emergency room (ER) being positioned at the first-aid station in the park. In this study, we examined patients transported from the amusement park to our ER facility, in order to clarify the role and efficiency of emergency physicians stationed at massgathering locations. Materials:Patients that were transported from an amusement park to our ER facility between April 2008 and March 2013 were included. Methods: We retrospectively investigated the pathophysiology, pre-hospital care, and prognosis of patients. Results:During the 5-year study period, 1,601 visitors transported by ambulance from the park to a hospital. Among these park visitors, 1, 107 were transported to our ER facility, with 189 being immediately hospitalized, including 66 critical cases that admitted to the intensive care unit (ICU). No mass-casualty accidents occurred at this amusement park during the study period.Nine patients had initial cardiopulmonary arrest (CPA) at the amusement park. All the patients suffering from CPA showed a return of spontaneous circulation (ROSC), but 2 of these patients eventually died. The 1-month survival rate was 77.8%. When limited to cardiogenic CPA, the 1-month survival rate was 85.7%. Conclusion:Mass-gathering areas, such as amusement parks, have the risk of medical emergencies that require critical care.Emergency physicians stationed onsite could promptly respond to medical events and offer pre-hospital care. To establish a ʻchain of survivalʼ that involves the emergency physicians may contribute to good prognosis for critical patients.