Bonz James W, Pope Joshua K, Wong Ambrose H, Ray Jessica M, Evans Leigh V
Department of Emergency Medicine Yale School of Medicine New Haven Connecticut USA.
AEM Educ Train. 2021 Feb 16;5(3):e10573. doi: 10.1002/aet2.10573. eCollection 2021 Jul.
Successful completion of life-saving procedures may benefit from a concise just-in-time (JIT) intervention. Video is an optimal medium for JIT training, but currently available video-based references are not optimized for a JIT format, especially in time-pressured situations prior to high-risk clinical contexts. We aimed to create and evaluate the efficacy of a brief video review of emergent Sengstaken-Blakemore tube (SBT) insertion for acutely decompensating variceal hemorrhage when used just prior to clinical performance in a simulated setting.
We created a less than 3-minute audio-optional JIT training video on SBT insertion. We recruited emergency medicine resident physicians to participate in a simulation scenario in which they had to quickly place an SBT. Participants were randomized to either a 3-minute procedure review by any media they chose (control) or review of the JIT video (intervention). Performance on a checklist created by a multidisciplinary group of SBT experts (passing score > 18 and maximum = 28) served as the primary outcome. We analyzed performance in checklist scores controlling level of training through a one-way analysis of covariance (ANCOVA). We analyzed rates of passing scores via a chi-square analysis.
We randomized 32 participants to media review (control) or JIT video (intervention). The intervention group had an overall mean (±SD) performance of 19.8 (±9.0) and the control group had a mean (±SD) score of 6.6 (±7.4). After adjusting for postgraduate year, we found a significant difference in final checklist scores between the two groups (mean difference = 12.8, 95% confidence interval [CI] = 7.6 to 18.0). Percentages of participants reaching a minimum passing score were two of 16 (12.5%) in the control group and 10 of 16 (62.5%) in the intervention group (odds ratio = 11.7, 95% CI = 9.9 to 13.5). Cohen's kappa indicated substantial agreement (κ = 0.714) between reviewer scores.
A readily available, focused, audio-optional JIT video increased performance for SBT insertion in a simulated setting. Future work may include testing of this format for more commonly performed emergency procedures and determination of effect on bedside performance in the clinical setting.
成功完成救生程序可能受益于简洁的即时(JIT)干预。视频是JIT培训的最佳媒介,但目前可用的基于视频的参考资料并未针对JIT格式进行优化,尤其是在高风险临床情况之前的时间紧迫情况下。我们旨在创建并评估在模拟环境中临床操作前使用的简短视频复习对急性失代偿性静脉曲张出血时紧急插入Sengstaken-Blakemore管(SBT)的效果。
我们创建了一个时长不到3分钟的关于SBT插入的可选择音频的JIT培训视频。我们招募急诊医学住院医师参与模拟场景,在该场景中他们必须快速放置SBT。参与者被随机分为两组,一组通过他们选择的任何媒介进行3分钟的操作复习(对照组),另一组复习JIT视频(干预组)。由SBT专家多学科小组创建的检查表上的表现(及格分数>18分,满分=28分)作为主要结果。我们通过单因素协方差分析(ANCOVA)分析检查表分数的表现,控制培训水平。我们通过卡方分析分析及格分数的比率。
我们将32名参与者随机分为媒介复习组(对照组)或JIT视频组(干预组)。干预组的总体平均(±标准差)表现为19.8(±9.0),对照组的平均(±标准差)分数为6.6(±7.4)。在调整研究生年级后,我们发现两组最终检查表分数存在显著差异(平均差异=12.8,95%置信区间[CI]=7.6至18.0)。达到最低及格分数的参与者百分比在对照组中为16人中的2人(12.5%),在干预组中为16人中的10人(62.5%)(优势比=11.7,95%CI=9.9至13.5)。Cohen's kappa表明评审员分数之间有实质性一致性(κ=0.714)。
一个随时可用、重点突出、可选择音频的JIT视频提高了模拟环境中SBT插入的表现。未来的工作可能包括测试这种格式在更常见的急诊程序中的应用,以及确定其对临床环境中床边操作的影响。