School of Computer Science and Statistics, Trinity College Dublin, Dublin, Ireland.
School of Computer Science and Statistics, Trinity College Dublin, Dublin, Ireland.
Am J Infect Control. 2020 Feb;48(2):162-166. doi: 10.1016/j.ajic.2019.06.015. Epub 2019 Jul 27.
Poor quality handwashing contributes to the spread of nosocomial infections. We investigate the impact of automatic video auditing (AVA) with feedback on the quality and quantity of handwashing in a hospital setting.
AVA systems were mounted over all handwash sinks in a surgical unit. Phase 1 established baseline handwashing quality and quantity. Phase 2 examined the impact of real-time performance feedback, and phase 3 examined the incremental impact of weekly team performance reports. Phase 4 remeasured the baseline without feedback.
A total of 3,606 handwash events were audited. During phase 2 and 3, compliance with the World Health Organization technique improved from 15.7%-46% (P < .0001), and the average number of handwash events per patient per day increased from 0.91-2.25 (P < .0001). Performance returned to baseline in phase 4.
AVA with real-time feedback significantly improved the quality and quantity of handwashing. The combination of AVA with electronic monitoring will allow simultaneous auditing of hand hygiene quantity and quality. The impact of cognitive offloading onto the technology may have contributed to the return to baseline at the end of the study, and suggests further research is required in this area.
手部卫生质量差会导致医院感染的传播。我们调查了在医院环境中使用自动视频审核（AVA）并提供反馈对洗手质量和数量的影响。
在一个外科病房的所有洗手池上方安装 AVA 系统。第 1 阶段确定了洗手质量和数量的基线。第 2 阶段检查了实时绩效反馈的影响，第 3 阶段检查了每周团队绩效报告的增量影响。第 4 阶段在没有反馈的情况下重新测量基线。
共审核了 3606 次洗手事件。在第 2 阶段和第 3 阶段，符合世界卫生组织技术的比例从 15.7%-46%（P<0.0001）提高，每位患者每天的平均洗手次数从 0.91-2.25 增加（P<0.0001）。在第 4 阶段，性能恢复到基线。
实时反馈的 AVA 显著提高了洗手的质量和数量。AVA 与电子监测相结合将允许同时审核手卫生的数量和质量。将认知负担转移到技术上可能导致研究结束时回归基线，这表明需要在这一领域进行进一步研究。
