在N95呼吸器重复使用和长期使用期间,适应测试失败的发生率N95呼吸器重复使用和长期使用
Ralph C Wang1, Nida F Degesys1, Jahan Fahimi1,2
1Department of Emergency Medicine, University of California, San Francisco.
JAMA network open
|January 26, 2024
概括
卫生保健工作者 (HCWs) 重复使用N95呼吸器导致一轮工作后38.7%的适应失败率. 与圆顶型相比,三折的N95显示出更高的不适合率,影响了呼吸器的有效性.
科学领域:
- 职业健康 职业健康 职业健康
- 传染病控制和控制传染病
- 呼吸系统保护 呼吸系统保护
背景情况:
- 由于COVID-19大流行导致N95呼吸器短缺,导致CDC为医疗保健工作者 (HCW) 延长使用和重复使用的指南.
- 有限的临床证据证实了N95呼吸器在现实环境中重复使用和长期使用的安全性和有效性.
研究的目的:
- 为了确定重复使用N95呼吸器的HCW中适应性测试失败的发生率.
- 为了比较不同类型N95呼吸器的适合性测试失败率.
主要方法:
- 一项前性队列研究,从2021年4月到2022年7月,涉及6个美国紧急部门的412名HCW.
- 医疗保健工作者在临床班次的一半以上的时间里重复使用N95呼吸器,班次后进行适应性测试.
- N95型号被分为圆顶型,三折型和嘴型,并对每种类型进行了适应测试.
主要成果:
- 一个轮班后N95适合失败的总累积发病率为38.7%.
- 适应失败率因N95类型而异:顶 (25.8%),嘴 (28.3%) 和三重 (61.3%).
- 与圆顶N95相比,三折的N95显示出与圆顶N95相比,不适合的风险明显更高 (aHR,1.75).
结论:
- 在急诊室重复使用N95呼吸器与相当高的适应性测试失败率有关.
- 与型相比,重复使用时,三折N95呼吸器具有更高的适合失败风险.
- 研究结果可以为流行病准备策略提供信息,包括N95的选择和再利用政策.
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