Evidence map›Paper›PMID 38985043›Full record

ArticleRevista latino-americana de enfermagem2024

Reuse of N95/PFF2 masks in clinical practice: morphological and structural analysis.

Viviane Lopes Vimieiro, Claysson Bruno Santos Vimieiro, Adriana Cristina de Oliveira

Abstract read
In one paragraph

Article in Revista latino-americana de enfermagem, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Viviane Lopes VimieiroUniversidade Federal de Minas Gerais, Escola de Enfermagem, Belo Horizonte, MG, Brazil.ORCID 0000-0001-6500-1344
Claysson Bruno Santos VimieiroPontifícia Universidade Católica de Minas Gerais, Belo Horizonte, MG, Brazil.ORCID 0000-0003-1916-0517
Adriana Cristina de OliveiraUniversidade Federal de Minas Gerais, Escola de Enfermagem, Belo Horizonte, MG, Brazil.ORCID 0000-0002-4821-6068

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveto analyze the integrity of N95/PFF2 masks in relation to fiber morphology, porosity, cracks and micro holes, as well as identify visible damage to their structure and components, after seven- and fifteen-day reuse protocols.

methodcross-sectional study. Structural and morphological characteristics of a new N95/PFF2 mask were analyzed in comparison with N95/PFF2 masks (n=10) used in seven- and fifteen-day protocols, through visual inspection and scanning electron microscopy.

resultsupon visual inspection, following the seven-day protocol, 40% and 60% of the N95/PFF2 masks showed, respectively, personal identification marks and external and internal dirt. Additionally, 20% exhibited loosening and/or tearing of the straps, while 100% showed some type of damage to the nose clips. In the fifteen-day protocol, all N95/PFF2 masks had dirt, loose straps and damaged nose clips, and 80% had folds. Electronic microscopy revealed an increase in pores and loosening in the weaves from seven days onwards, extending up to fifteen days, with the presence of micro holes and residues.

conclusionthe reuse of N95/PFF2 masks affects their structural and morphological integrity. It is crucial to carry out tests to measure the impact of this practice on the safety of health professionals.

Indexed as

Equipment ReuseCross-Sectional StudiesHumansMasksMicroscopy, Electron, ScanningN95 Respirators

Identifiers

PMID38985043
PMCPMC11251686

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.