Evaluation of the effects of repeated disinfection on medical exam gloves: Part 2. Changes in mechanical properties
Evaluation of the effects of repeated disinfection on medical exam gloves: Part 2. Changes in mechanical properties
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反复消毒对医用检查手套的影响评估：第2部分：机械性能的变化
DOI：
10.1080/15459624.2021.2015073
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发表时间：
2022
影响因子：
2
通讯作者：
LeMesurier, Roger
中科院分区：
文献类型：
--
作者：
Phalen, Robert N.;Patterson, Jonathan;Cuadros Olave, John;Mansfield, Samuel A.;Shless, Jared S.;Crider, Yoshika S.;Pitchik, Helen O.;Qazi, Alliya S.;Styczynski, Ashley;LeMesurier, Roger
由于严重短缺，许多医疗保健专业人员被迫将医用检查手套超出其预期的一次性用途。尽管现有文献有限，疾病预防控制中心还是提出了一套重复使用检查手套的指南，指出了三种广泛使用的消毒剂的最大治疗次数。这项研究探讨了这些处理如何影响乳胶和丁腈手套的机械性能。此外，还提出了拉伸性能（特别是弹性模量）变化的可接受阈值，作为退化的指示。该提议的标准也适用于文献中可用的类似研究，以确定适用性并帮助制定建议。三种不同的乳胶手套品牌和三种丁腈手套经过酒精类洗手液、稀释漂白剂或肥皂和水的反复处理。对从未处理和处理过的手套上切下的样品进行拉伸测试，以评估每种处理引起的弹性模量的变化。研究结果表明，乳胶手套在 CDC 推荐的指南中表现良好，即使用乙醇基洗手液进行 6 次重复处理，以及使用稀释漂白剂或肥皂和水进行 10 次重复处理。另一方面，丁腈检查手套的弹性模量发生了显着变化，各品牌的结果更加不确定。对于用稀释的漂白剂、肥皂和水进行处理尤其如此。需要进一步研究来调查消毒产品对丁腈检查手套机械完整性的影响。结果支持对丁腈检查手套使用乙醇基洗手液进行五次重复处理，这比 CDC 目前建议的阈值要低。这项研究还支持 CDC 建议的用肥皂和水重复处理 10 次的建议适用于乳胶检查手套，但不适用于丁腈检查手套。参与选择用于感染控制的一次性检查手套的职业安全和健康专业人员应考虑手套聚合物类型与可用消毒剂的兼容性，特别是在需要长期使用和重复消毒的情况下。
Many healthcare professionals have been forced, under acute shortages, to extend medical exam gloves beyond their intended single use. Despite limited available literature, the CDC proposed a set of guidelines for repeated exam gloves use, indicating a maximum number of treatments for three widely available disinfectants. This study examines how these treatments affect the mechanical properties of latex and nitrile gloves. Furthermore, an acceptability threshold is proposed for changes in tensile property, specifically elastic modulus, as an indication of degradation. This proposed criterion was also applied to similar studies available in the literature to determine applicability and aid in recommendation development. Three different latex glove brands and three nitrile brands were exposed to repeated treatments of an alcohol-based hand rub, diluted bleach, or soap and water. Tensile tests of samples cut from untreated and treated gloves were performed to assess the change in elastic modulus induced by each treatment. The findings suggest that latex gloves performed well within the CDC recommended guidelines of six repeated treatments for an ethanol-based hand rub and 10 repeated treatments of either dilute bleach or soap and water. Nitrile exam gloves, on the other hand, showed significant changes in elastic modulus, with more inconclusive results among brands. This was especially true for treatment with dilute bleach and soap and water. Further research is needed to investigate the effects of disinfection products on the mechanical integrity of nitrile exam gloves. The results support the use of five repeated treatments of ethanol-based hand rub for nitrile exam gloves, a lower threshold than currently recommended by the CDC. This research also supports that the CDC recommendation of 10 repeated treatment with soap and water is appropriate for latex exam gloves, but not for nitrile exam gloves. Occupational safety and health professionals involved in the selection of disposable exam gloves for infection control should consider the compatibility of the glove polymer type with available disinfectants, especially if extended use with repeated disinfection becomes necessary.
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