Tajima Takuya, Ota Osamu, Nagayama Masataka, Takahashi Masayasu, Yamada Mutsuo, Ishiyama Nobuo, Yoshida Ichiro, Takemura Masahiro, Hara Kenji, Akama Takao, Mitsumori Norio, Higashihara Junichiro, Toyama Yukimasa, Furuya Masahiro, Chosa Etsuo, Nakamura Akihiko
Division of Orthopaedic Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.
Medical control committee, Japan Rugby Top League, Tokyo, Japan.
Int J Sports Med. 2022 Sep;43(10):889-894. doi: 10.1055/a-1810-6509. Epub 2022 Jun 7.
Head Injury Assessment (HIA) is the screening tool for head injury during a rugby game. The purpose of this study was to investigate the epidemiology of HIA in the Japan Rugby Top League (JRTL). The incidences of HIA, defined concussion (per 1,000 player-hours) and repeated concussions were evaluated in three seasons (2016-17, 2017-18, 2018-19; total 360 games). The HIA incidence rates were 12.7 (95% confidence interval 9.5-15.9), 20.8 (16.8-24.9), and 25.0 (20.5-29.5) in each season. HIA-1 criteria 2, which is applied for suspected concussion cases, was performed for 46 cases in the 2016-17 season, 81 cases in the 2017-18 season, and 88 cases in the 2018-19 season. The concussion incidence rates were significantly greater in the 2017-18 season (9.6/1000 player-hours, 95% confidence interval 6.8-12.4) and the 2018-19 season (14.4, 11-17.8) compared to the 2016-17 season (4.8, 2.8-6.8). The number of repeated concussion cases in the same season was 1 in the 2016-17 season and 4 in both the 2017-18 and 2018-19 seasons. This study confirmed significantly higher HIA and concussion incidence rates over time. Although the HIA system might have been established in the three seasons in JRTL, comprehensive management needs to be improved to prevent repeated concussions.
头部损伤评估（HIA）是橄榄球比赛期间用于筛查头部损伤的工具。本研究的目的是调查日本橄榄球顶级联赛（JRTL）中HIA的流行病学情况。在三个赛季（2016 - 17、2017 - 18、2018 - 19；共360场比赛）中评估了HIA的发生率、定义的脑震荡（每1000球员小时）和反复脑震荡情况。每个赛季的HIA发生率分别为12.7（95%置信区间9.5 - 15.9）、20.8（16.8 - 24.9）和25.0（20.5 - 29.5）。适用于疑似脑震荡病例的HIA - 1标准2，在2016 - 17赛季实施了46例，2017 - 18赛季实施了81例，2018 - 19赛季实施了88例。与2016 - 17赛季（4.8，2.8 - 6.8）相比，2017 - 18赛季（9.6/1000球员小时，95%置信区间6.8 - 12.4）和2018 - 19赛季（14.4，11 - 17.8）的脑震荡发生率显著更高。2016 - 17赛季同赛季反复脑震荡病例数为1例，2017 - 18赛季和2018 - 19赛季均为4例。本研究证实随着时间推移HIA和脑震荡发生率显著升高。尽管JRTL在这三个赛季可能已经建立了HIA系统，但仍需要改进综合管理以预防反复脑震荡。
