Physiological Evaluation of Personal Protective Ensembles Recommended for Use in West Africa
Physiological Evaluation of Personal Protective Ensembles Recommended for Use in West Africa
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DOI：
10.1017/dmp.2017.13
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发表时间：
2017-10-01
影响因子：
2.7
通讯作者：
Shaffer, Ronald
中科院分区：
文献类型：
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作者：
Coca, Aitor;Quinn, Tyler;Shaffer, Ronald
个人防护装备（PPE）为医护人员提供了一道屏障，以防止人类接触埃博拉病毒和潜在的疾病传播。然而，PPE也可能因潜在增加的热应激而引入额外的生理负担。这项研究评估了在类似于西非的环境条件下，穿着3种不同的常用PPE套装进行连续轻度运动时，人体的生理和主观反应。方法6名健康人在环境舱中进行测试，（32 ℃，92%相对湿度），同时在跑步机上行走（3 MET，2.5 mph，0%坡度）60分钟。所有受试者均穿着医用擦洗服和PPE物品。E1也有一个面罩和防流体手术衣; E2还包括护目镜，工作服，和单独的头罩;和E3还包含一个高度不渗透的工作服，单独的头罩，和外科口罩覆盖N95呼吸器。结果心率和核心温度在运动结束时，E2和E3比E1显着更高。E2和E3的热和劳累的主观感受显着高于E1。结论热应激和PPE培训，以及实施的工作与休息的比例，以避免脱水和可能的热应激问题，建议。（公共卫生应急预案。2017;11：580-586）
Objective Personal protective equipment (PPE) provides health care workers with a barrier to prevent human contact with viruses like Ebola and potential transmission of the disease. However, PPE can also introduce an additional physiological burden from potentially increased heat stress. This study evaluated the human physiological and subjective responses to continuous light exercise within environmental conditions similar to those in West Africa while wearing 3 different, commonly used PPE ensembles (E1, E2, and E3).Methods Six healthy individuals were tested in an environmental chamber (32 degrees C, 92% relative humidity) while walking (3 METs, 2.5 mph, 0% incline) on a treadmill for 60 minutes. All subjects wore medical scrubs and PPE items. E1 also had a face shield and fluid-resistant surgical gown; E2 additionally included goggles, coverall, and separate hood; and E3 also contained a highly impermeable coverall, separate hood, and surgical mask cover over the N95 respirator.Results Heart rate and core temperature at the end of the exercise were significantly higher for E2 and E3 than for E1. Subjective perceptions of heat and exertion were significantly higher for E2 and E3 than for E1.Conclusions Heat stress and PPE training, as well as the implementation of a work-to-rest ratio that avoids dehydration and possible heat stress issues, are recommended. (Disaster Med Public Health Preparedness. 2017;11:580-586)