Evaluation of face shields used during aerosol generating procedures.
Evaluation of face shields used during aerosol generating procedures.
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DOI：
10.1038/s41598-023-42403-8
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发表时间：
2023-09-20
影响因子：
4.6
通讯作者：
中科院分区：
文献类型：
--
作者：
经鼻可弯曲喉镜检查被认为是一种产生气雾剂的过程。研制了一种负压面罩(NPFS)，以控制患者在喉镜检查时排放的气雾剂。这项研究的目的是确定NPFS与标准一次性塑料面罩相比在控制病毒气雾剂方面的有效性。面罩被放置在模拟患者咳嗽的机器上。以MS2噬菌体作为SARS-CoV-2的替代物，用咳嗽机雾化。在面罩的内外都采集了雾化病毒的样本。传统塑料面罩内外的病毒气溶胶浓度差异无统计学意义(p = 0.12)。然而，在面罩外，所有测量的颗粒大小的颗粒浓度都显著降低。在以每分钟38.6万L(LPM)的流速运行的NPFS外，病毒和颗粒物浓度显著降低(p <； 0.01)。当NPFS以10LPM运行时，面罩上的病毒浓度没有显著差异(p = 0.09)。然而，测量的所有颗粒大小的数字颗粒浓度有显著差异(p <； 0.05)。
Transnasal flexible laryngoscopy is considered an aerosol generating procedure. A negative pressure face shield (NPFS) was developed to control aerosol from the patient during laryngoscopy. The purpose of this study was to determine the effectiveness of the NPFS at controlling virus aerosol compared to a standard disposable plastic face shield. The face shields were placed on a simulated patient coughing machine. MS2 bacteriophage was used as a surrogate for SARS-CoV-2 and was aerosolized using the coughing machine. The aerosolized virus was sampled on the inside and outside of the face shields. The virus aerosol concentration was not significantly different between the inside and outside of the traditional plastic face shield (p = 0.12). However, the particle concentrations across all particle sizes measured were significantly decreased outside the face shield. The virus and particle concentrations were significantly decreased (p < 0.01) outside the NPFS operating at a flow rate of 38.6 L per minute (LPM). When the NPFS was operated at 10 LPM, virus concentrations were not significantly different (p = 0.09) across the face shield. However, the number particle concentrations across all particle sizes measured were significantly different (p < 0.05).
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影响因子：
1.9
作者：
Hoffman HT;Walsh JE;Pratt A;Miller RM;Schwalje A;Stegall HR;Nonnenmann M
通讯作者：
Nonnenmann M
影响因子：
1.9
作者：
Hoffman, Henry T.;Miller, Robert M.;Diekema, Daniel J.
通讯作者：
Diekema, Daniel J.
DOI：
10.1111/j.2517-6161.1995.tb02031.x
发表时间：
1995-01-01
影响因子：
5.8
作者：
BENJAMINI, Y;HOCHBERG, Y
通讯作者：
HOCHBERG, Y
气溶胶生成程序和将急性呼吸道感染传播给医疗保健工作者的风险：系统评价。
影响因子：
3.7
作者：
Tran K;Cimon K;Severn M;Pessoa-Silva CL;Conly J
通讯作者：
Conly J
DOI：
10.3390/ijerph18041942
发表时间：
2021-02-17
影响因子：
--
作者：
Wendling JM;Fabacher T;Pébaÿ PP;Cosperec I;Rochoy M
通讯作者：
Rochoy M