Dataset Information

Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity.

ABSTRACT: BACKGROUND:Due to the SARS-CoV2 pandemic, medical face masks are widely recommended for a large number of individuals and long durations. The effect of wearing a surgical and a FFP2/N95 face mask on cardiopulmonary exercise capacity has not been systematically reported. METHODS:This prospective cross-over study quantitated the effects of wearing no mask (nm), a surgical mask (sm) and a FFP2/N95 mask (ffpm) in 12 healthy males (age 38.1?±?6.2 years, BMI 24.5?±?2.0 kg/m2). The 36 tests were performed in randomized order. The cardiopulmonary and metabolic responses were monitored by ergo-spirometry and impedance cardiography. Ten domains of comfort/discomfort of wearing a mask were assessed by questionnaire. RESULTS:The pulmonary function parameters were significantly lower with mask (forced expiratory volume: 5.6?±?1.0 vs 5.3?±?0.8 vs 6.1?±?1.0 l/s with sm, ffpm and nm, respectively; p?=?0.001; peak expiratory flow: 8.7?±?1.4 vs 7.5?±?1.1 vs 9.7?±?1.6 l/s; p?

SUBMITTER: Fikenzer S

PROVIDER: S-EPMC7338098 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity.

Fikenzer Sven S Uhe T T Lavall D D Rudolph U U Falz R R Busse M M Hepp P P Laufs U U

Clinical research in cardiology : official journal of the German Cardiac Society 20200706 12

<h4>Background</h4>Due to the SARS-CoV2 pandemic, medical face masks are widely recommended for a large number of individuals and long durations. The effect of wearing a surgical and a FFP2/N95 face mask on cardiopulmonary exercise capacity has not been systematically reported.<h4>Methods</h4>This prospective cross-over study quantitated the effects of wearing no mask (nm), a surgical mask (sm) and a FFP2/N95 mask (ffpm) in 12 healthy males (age 38.1 ± 6.2 years, BMI 24.5 ± 2.0 kg/m<sup>2</sup>) ...[more]

PMID: 32632523

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Project description:BackgroundWith the current COVID-19 pandemic, many healthcare facilities have been lacking a steady supply of filtering facepiece respirators. To better address this challenge, the decontamination and reuse of these respirators is a strategy that has been studied by an increasing number of institutions during the COVID-19 pandemic.MethodsWe conducted a systematic literature review in PubMed, PubMed Central, Embase, and Google Scholar. Studies were eligible when (electronically or in print) up to 17 June 2020, and published in English, French, German, or Spanish. The primary outcome was reduction of test viruses or test bacteria by log3 for disinfection and log6 for sterilization. Secondary outcome was physical integrity (fit/filtration/degradation) of the respirators after reprocessing. Materials from the grey literature, including an unpublished study were added to the findings.FindingsOf 938 retrieved studies, 35 studies were included in the analysis with 70 individual tests conducted. 17 methods of decontamination were found, included the use of liquids (detergent, benzalkonium chloride, hypochlorite, or ethanol), gases (hydrogen peroxide, ozone, peracetic acid or ethylene oxide), heat (either moist with or without pressure or dry heat), or ultra violet radiation (UVA and UVGI); either alone or in combination. Ethylene oxide, gaseous hydrogen peroxide (with or without peracetic acid), peracetic acid dry fogging system, microwave-generated moist heat, and steam seem to be the most promising methods on decontamination efficacy, physical integrity and filtration capacity.InterpretationA number of methods can be used for N95/FFP2 mask reprocessing in case of shortage, helping to keep healthcare workers and patients safe. However, the selection of disinfection or sterilization methods must take into account local availability and turnover capacity as well as the manufacturer; meaning that some methods work better on specific models from specific manufacturers.Systematic registration numberCRD42020193309.

Dataset Information

Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity.

Publications

Effects of surgical and FFP2/N95 face masks on cardiopulmonary exercise capacity.

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