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Médecine du travail du personnel hospitalier

Comparing the protective performances of 3 types of N95 filtering facepiece respirators during chest compressions: A randomized simulation study

Auteur     Hyungoo Shin
Auteur     Jaehoon Oh
Auteur     Tae Ho Lim
Auteur     Hyunggoo Kang
Auteur     Yeongtak Song
Auteur     Sanghyun Lee
Volume     96
Numéro     42
Pages     e8308
Publication     Medicine
ISSN     1536-5964
Date     Oct 2017
Résumé     OBJECTIVE: Healthcare providers in emergency departments should wear respirators for infection protection. However, the wearer’s vigorous movements during cardiopulmonary resuscitation may affect the protective performance of the respirator. Herein, we aimed to assess the effects of chest compressions (CCs) on the protective performance of respirators. METHODS: This crossover study evaluated 30 healthcare providers from 1 emergency department who performed CC with real-time feedback. The first, second, and third groups started with a cup-type, fold-type, and valve-type respirator, respectively, after which the respirators were randomized for each group. The fit factors were measured using a quantitative fit testing device before and during the CC in each experiment. The protection rate was defined as the proportion of respirators achieving a fit factor ≥100. RESULTS: The fold-type respirator had a significantly greater protection rate at baseline (100.0% ± 0.0%) compared to the cup-type (73.6% ± 39.6%, P = .003) and valve-type respirators (87.5% ± 30.3%, P = .012). During the CC, the fit factor values significantly decreased for the cup-type (44.9% ± 42.8%, P < .001) and valve-type respirators (59.5% ± 41.7%, P = .002), but not for the fold-type respirator (93.2% ± 21.7%, P = .095). CONCLUSIONS: The protective performances of respirators may be influenced by CC. Healthcare providers should identify the respirator that provides the best fit for their intended tasks.

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