Survey of trauma patients injured by falling or flying objects in Japan based on the Japan Trauma Data Bank

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ORIGINAL ARTICLE

Survey of trauma patients injured by falling or flying objects in Japan based on the Japan Trauma Data Bank Youichi Yanagawa1 · Kei Jitsuiki1 · Ken‑ichi Muramatsu1 · Saya Ikegami1 · Yoshihiro Kushida1 · Hiroki Nagasawa1 · Ryoto Nishio1 · Ikuto Takeuchi1 · Hiromichi Ohsaka1 · Yasumasa Oode1 · Kazuhiko Omori1 Received: 15 June 2020 / Accepted: 26 September 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020

Abstract Purpose  We retrospectively investigated patients injured by falling/flying objects using the Japan Trauma Data Bank (JTDB). Methods  The study collected information of the JTEB from January 2004 to May 2019. The subjects were divided into two groups: the unexpected accident (UA) group included cases in which the patient was injured by an unexpected accident; the labor accident (LA) group included cases in which the patient was injured at work. Results  A total of 1997 patients were enrolled as subjects (UA group, n = 383; LA group, n = 1134). In both groups, head injuries were the most frequent type of injury, followed by chest injuries. The median head abbreviated injury scale of the UA group was significantly higher than that of the LA group. In the UA group, the percentage of female patients, average age, and average TRISS value were significantly greater in comparison to the LA group. The frequency of emergency operations in the UA group was significantly lower in comparison to the LA group. The frequency of head injuries in the UA group was significantly greater than that in the LA group. The frequencies of upper extremity and lower extremity injuries in the UA group were significantly lower than those in the LA group. Conclusion  This is the first report to analyze trauma patients injured by falling/flying objects using the JTDB. Public health and emergency providers can use this information to anticipate the health-care needs after falling/flying object injuries. Keywords  Trauma · Falling object · Flying object · Mortality

Introduction The Japan Trauma Data Bank (JTDB) was established in 2003 and was authorized by the Japanese Association for the Surgery of Trauma (Trauma Surgery Committee) as well as the Japanese Association for Acute Medicine (Committee for Clinical Care Evaluation). In 2016, 256 major emergency medical institutions across Japan were included in the JTDB [1–4]. Most of the registered institutions are acute critical care and trauma centers. The data in the JTDB includes information on trauma patients injured by falling/ flying objects. However, there have been few reports concerning the treatment of such patients and the number of such patients in Japan is relatively small [5, 6]. In addition, * Youichi Yanagawa [email protected] 1



Department of Acute Critical Care Medicine, Shizuoka Hospital, Juntendo University, 1129 Nagaoka, Izunokuni City, Shizuoka 410‑2295, Japan

few reports have focused on trauma patients injured by falling/flying objects in Japan [7–10]. Accordingly, we retrospectively investigated the patients injured by fallin