Abstract：
Medical waste bins are a potential source of microbial contamination in the hospital environment, while there is no clear guidance for the management of them. We aimed to assess the impact of medical waste bins on patient\'s environment.
This experimental study simulated microbial contamination by performing medical procedures on a patient model with fluorescent lotion. The waste bin was set as initially empty or two-thirds filled with waste, open or with a lid. The percentage of fluorescent-contaminated area in designated patient\'s environments was analyzed by 2 independent observers.
Among a total of 120 experiments, the sides of the bins were more contaminated in open-occupied bins compared to open-empty bins and in open-occupied bins compared to lid-occupied bins (median 1.9175% vs 0.0916% [P = .001] and 1.9175% vs 0.0899% [P = .003], respectively). The top of the bedside equipment trolley for preparing medical procedures was more contaminated in lid-occupied bins than open-occupied bins (median 0.0080% vs 0.0040%, P = .013).
In addition to reducing contamination of the bin itself, the manually operated lid had a potential risk of contributing to microbial transmission by contaminating the equipment trolley.
Medical waste bins should be kept no more than two-thirds full, and caution should be taken when using the manually operated lid, to avoid cross-contamination.
This experimental study simulated microbial contamination by performing medical procedures on a patient model with fluorescent lotion. The waste bin was set as initially empty or two-thirds filled with waste, open or with a lid. The percentage of fluorescent-contaminated area in designated patient\'s environments was analyzed by 2 independent observers.
Among a total of 120 experiments, the sides of the bins were more contaminated in open-occupied bins compared to open-empty bins and in open-occupied bins compared to lid-occupied bins (median 1.9175% vs 0.0916% [P = .001] and 1.9175% vs 0.0899% [P = .003], respectively). The top of the bedside equipment trolley for preparing medical procedures was more contaminated in lid-occupied bins than open-occupied bins (median 0.0080% vs 0.0040%, P = .013).
In addition to reducing contamination of the bin itself, the manually operated lid had a potential risk of contributing to microbial transmission by contaminating the equipment trolley.
Medical waste bins should be kept no more than two-thirds full, and caution should be taken when using the manually operated lid, to avoid cross-contamination.
摘要：
背景：医疗垃圾箱是医院环境中微生物污染的潜在来源，虽然对它们的管理没有明确的指导。我们旨在评估医疗垃圾箱对患者环境的影响。
方法：本实验研究通过在具有荧光洗剂的患者模型上执行医疗程序来模拟微生物污染。垃圾箱最初被设置为空的，或者三分之二的垃圾箱装满了废物，打开或带盖子。由两名独立观察者分析指定患者环境中荧光污染面积的百分比。
结果：在总共120个实验中，与开放式空箱相比，开放式空箱和开放式空箱相比，箱侧的污染程度更高（中位数为1.9175%vs.0.0916%[P=0.001]和1.9175%vs.0.0899%[P=0.003]，分别)。用于准备医疗程序的床边设备手推车的顶部在盖子占用的垃圾箱中的污染程度高于开放式占用的垃圾箱（中位数为0.0080％vs.0.0040%,P=0.013)。
结论：除了减少垃圾箱本身的污染，手动操作的盖子有可能通过污染设备手推车导致微生物传播。
结论：医疗垃圾箱应保持不超过三分之二，使用手动操作的盖子时应注意，避免交叉污染。
方法：本实验研究通过在具有荧光洗剂的患者模型上执行医疗程序来模拟微生物污染。垃圾箱最初被设置为空的，或者三分之二的垃圾箱装满了废物，打开或带盖子。由两名独立观察者分析指定患者环境中荧光污染面积的百分比。
结果：在总共120个实验中，与开放式空箱相比，开放式空箱和开放式空箱相比，箱侧的污染程度更高（中位数为1.9175%vs.0.0916%[P=0.001]和1.9175%vs.0.0899%[P=0.003]，分别)。用于准备医疗程序的床边设备手推车的顶部在盖子占用的垃圾箱中的污染程度高于开放式占用的垃圾箱（中位数为0.0080％vs.0.0040%,P=0.013)。
结论：除了减少垃圾箱本身的污染，手动操作的盖子有可能通过污染设备手推车导致微生物传播。
结论：医疗垃圾箱应保持不超过三分之二，使用手动操作的盖子时应注意，避免交叉污染。
