Verification of two Alternative Do-it-yourself Equipment Respirators Seal as COVID-19 Protection (VADERS-CoV): a quality assessment pilot study

IF 0.1 Q4 ANESTHESIOLOGY

Acta anaesthesiologica Belgica Pub Date : 2020-05-26 DOI:10.1101/2020.05.23.20111054

Marco Pettinger, M. Momeni, Clemence Michaud, M. V. Van Dyck, David Kahn, Guillaume Lemaire

{"title":"Verification of two Alternative Do-it-yourself Equipment Respirators Seal as COVID-19 Protection (VADERS-CoV): a quality assessment pilot study","authors":"Marco Pettinger, M. Momeni, Clemence Michaud, M. V. Van Dyck, David Kahn, Guillaume Lemaire","doi":"10.1101/2020.05.23.20111054","DOIUrl":null,"url":null,"abstract":"Background During the ongoing COVID-19 pandemic, healthcare workers are facing shortage in personal protective equipment, especially adequate respirators. Alternative do-it-yourself respirators (ADR) emerge, without any proof of protection. Objective Verify seal potential of two ADR compared to a common FFP2 respirator. Design Quality assessment pilot study. Setting Tertiary Care Hospital. Participants Ten anaesthesiology residents. Interventions Participants performed quantitative face-fit tests (QNFT) with three respirators to evaluate seal. A common FFP2 respirator was used as baseline (control group). ADR tested in this study are an Anaesthesia Face Mask (AFM) and a full-face Modified Snorkelling Mask (MSM) with a 3D-printed connector, both in conjunction with a breathing system filter. Main outcome measures Non-inferior seal performance of ADR over FFP2, assessed by calculated QNFT based on measured individual fit factors, as defined by the Occupational Safety and Health Administration. Results For each respirator a total of 90 individual fit factor measurements were taken. Within the control group, seal failed in 37 (41%) measurements but only in 10 (11%) within the AFM group and in 6 (7%) within the MSM group (P < 0.001 respectively). However, when calculating the final, mean QNFT results, no statistically significant difference was found between respirators. Successful QNFT were determined for 5 out of 10 participants in the control group, for 8 in the AFM group (P = 0.25) and for 7 in the MSM group (P = 0.69). Conclusion Both ADR do have the potential to provide non inferior seal compared to a common FFP2 respirator. While AFM respirators are easily assembled, snorkelling masks must undergo significant but feasible modifications. Our results suggest that those ADR masks might be further investigated as they seem to be viable alternatives for situations when certified respirators are not available.","PeriodicalId":7024,"journal":{"name":"Acta anaesthesiologica Belgica","volume":" ","pages":""},"PeriodicalIF":0.1000,"publicationDate":"2020-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta anaesthesiologica Belgica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1101/2020.05.23.20111054","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ANESTHESIOLOGY","Score":null,"Total":0}

引用次数: 3

Abstract

Background During the ongoing COVID-19 pandemic, healthcare workers are facing shortage in personal protective equipment, especially adequate respirators. Alternative do-it-yourself respirators (ADR) emerge, without any proof of protection. Objective Verify seal potential of two ADR compared to a common FFP2 respirator. Design Quality assessment pilot study. Setting Tertiary Care Hospital. Participants Ten anaesthesiology residents. Interventions Participants performed quantitative face-fit tests (QNFT) with three respirators to evaluate seal. A common FFP2 respirator was used as baseline (control group). ADR tested in this study are an Anaesthesia Face Mask (AFM) and a full-face Modified Snorkelling Mask (MSM) with a 3D-printed connector, both in conjunction with a breathing system filter. Main outcome measures Non-inferior seal performance of ADR over FFP2, assessed by calculated QNFT based on measured individual fit factors, as defined by the Occupational Safety and Health Administration. Results For each respirator a total of 90 individual fit factor measurements were taken. Within the control group, seal failed in 37 (41%) measurements but only in 10 (11%) within the AFM group and in 6 (7%) within the MSM group (P < 0.001 respectively). However, when calculating the final, mean QNFT results, no statistically significant difference was found between respirators. Successful QNFT were determined for 5 out of 10 participants in the control group, for 8 in the AFM group (P = 0.25) and for 7 in the MSM group (P = 0.69). Conclusion Both ADR do have the potential to provide non inferior seal compared to a common FFP2 respirator. While AFM respirators are easily assembled, snorkelling masks must undergo significant but feasible modifications. Our results suggest that those ADR masks might be further investigated as they seem to be viable alternatives for situations when certified respirators are not available.

查看原文本刊更多论文

两种可供选择的自我防护设备呼吸器作为新冠肺炎防护（VADERS-CoV）的验证：一项质量评估试点研究

背景在持续的新冠肺炎大流行期间，医护人员面临个人防护设备短缺，尤其是足够的呼吸器。在没有任何防护证明的情况下，出现了替代性的自己动手呼吸器（ADR）。目的验证两种ADR与普通FFP2呼吸器的密封潜力。设计质量评估试点研究。设置三级护理医院。参与者10名麻醉师。干预措施参与者使用三个呼吸器进行了定量面部贴合度测试（QNFT），以评估密封性。使用普通的FFP2呼吸器作为基线（对照组）。本研究中测试的ADR是麻醉面罩（AFM）和带3D打印连接器的全脸改良浮潜面罩（MSM），两者都配有呼吸系统过滤器。主要结果测量ADR的密封性能优于FFP2，根据职业安全与健康管理局定义的测量的个人拟合因子，通过计算QNFT进行评估。结果对于每个呼吸器，总共进行了90次个体拟合因子测量。在对照组中，37次（41%）测量中密封失败，但在AFM组中仅10次（11%），在MSM组中仅6次（7%）（P分别<0.001）。然而，在计算最终平均QNFT结果时，呼吸器之间没有发现统计学上的显著差异。对照组10名参与者中有5名、AFM组8名（P=0.25）和MSM组7名（P=0.69）的QNFT成功。虽然AFM呼吸器很容易组装，但通气面罩必须经过重大但可行的修改。我们的研究结果表明，这些ADR口罩可能会被进一步调查，因为它们似乎是无法获得认证呼吸器的情况下的可行替代品。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Acta anaesthesiologica Belgica ANESTHESIOLOGY-

CiteScore

0.20

自引率

0.00%

发文量

期刊介绍： L’Acta Anaesthesiologica Belgica est le journal de la SBAR, publié 4 fois par an. L’Acta a été publié pour la première fois en 1950. Depuis 1973 l’Acta est publié dans la langue Anglaise, ce qui a été résulté à un rayonnement plus internationaux. Depuis lors l’Acta est devenu un journal à ne pas manquer dans le domaine d’Anesthésie Belge, offrant e.a. les textes du congrès annuel, les Research Meetings, … Vous en trouvez aussi les dates des Research Meetings, du congrès annuel et des autres réunions.