Gardner A J, Kohler R M N, Levi C R, Iverson G L
Priority Research Centre for Stroke & Brain Injury, School of Medicine & Public Health, University of Newcastle, Callaghan, Australia.
DR KOHLER Sports Injuries Specialist, Gold Coast, Australia.
Int J Sports Med. 2017 Jan;38(1):71-75. doi: 10.1055/s-0042-116072. Epub 2016 Oct 13.
A new concussion interchange rule (CIR) was introduced in 2014 for the National Rugby League and National Youth Competition (NYC). The CIR allows a player suspected of having sustained a concussion to be removed from play and assessed without an interchange being tallied against the player's team. Participants included all NYC players who used the CIR during the 2014 season. 2 raters completed video analysis of 131 (of a total of 156 reported) uses of the CIR, describing injury characteristics, situational factors, and concussion signs. The incidence rate was 44.9 (95% CI: 38.5-52.3) uses of the CIR per 1 000 NYC player match hours, or approximately one CIR use every 1.3 games. Apparent loss of consciousness/unresponsiveness was observed in 13% of cases, clutching the head in 65%, unsteadiness of gait in 60%, and a vacant stare in 23%. Most incidences occurred from a hit-up (82%). There appeared to be some instances of video evidence of injury but the athlete was cleared to return to play in the same game. Video review appears to be a useful adjunct for identifying players suffering possible concussion. Further research is required on the usefulness of video review for identifying signs of concussive injury.
2014年，一项新的脑震荡换人规则（CIR）被引入国家橄榄球联盟和全国青年锦标赛（NYC）。该规则允许疑似脑震荡的球员被换下场并接受评估，且不计入球队的换人次数。参与者包括2014赛季使用该规则的所有NYC球员。两名评估人员对131次（共报告156次）CIR的使用情况进行了视频分析，描述了损伤特征、情境因素和脑震荡症状。发病率为每1000个NYC球员比赛小时有44.9次（95%置信区间：38.5 - 52.3）CIR的使用，即大约每1.3场比赛有一次CIR的使用。13%的病例出现明显意识丧失/无反应，65%的病例有抱头动作，60%的病例步态不稳，23%的病例目光呆滞。大多数发病情况是由撞击引起的（82%）。似乎存在一些有损伤视频证据但运动员仍被批准在同一场比赛中重返赛场的情况。视频审查似乎是识别可能遭受脑震荡球员的有用辅助手段。关于视频审查在识别脑震荡损伤迹象方面的有用性，还需要进一步研究。
