Perlite is a suitable model material for experiments investigating breathing in high density snow.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
08 02 2022
08 02 2022
Historique:
received:
05
03
2021
accepted:
20
01
2022
entrez:
9
2
2022
pubmed:
10
2
2022
medline:
9
3
2022
Statut:
epublish
Résumé
Outdoor breathing trials with simulated avalanche snow are fundamental for the research of the gas exchange under avalanche snow, which supports the development of the international resuscitation guidelines. However, these studies have to face numerous problems, including unstable weather and variable snow properties. This pilot study examines a mineral material perlite as a potential snow model for studies of ventilation and gas exchange parameters. Thirteen male subjects underwent three breathing phases-into snow, wet perlite and dry perlite. The resulting trends of gas exchange parameters in all tested materials were similar and when there was a significant difference observed, the trends in the parameters for high density snow used in the study lay in between the trends in dry and wet perlite. These findings, together with its stability and accessibility year-round, make perlite a potential avalanche snow model material. Perlite seems suitable especially for simulation and preparation of breathing trials assessing gas exchange under avalanche snow, and potentially for testing of new avalanche safety equipment before their validation in real snow.The study was registered in ClinicalTrials.gov on January 22, 2018; the registration number is NCT03413878.
Identifiants
pubmed: 35136116
doi: 10.1038/s41598-022-06015-y
pii: 10.1038/s41598-022-06015-y
pmc: PMC8827056
doi:
Substances chimiques
Perlite
0SG101ZGK9
Silicon Dioxide
7631-86-9
Aluminum Oxide
LMI26O6933
Banques de données
ClinicalTrials.gov
['NCT03413878']
Types de publication
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2070Informations de copyright
© 2022. The Author(s).
Références
JAMA. 2000 May 3;283(17):2266-71
pubmed: 10807386
PLoS One. 2015 Dec 14;10(12):e0144332
pubmed: 26666523
Aviat Space Environ Med. 2008 Aug;79(8):735-42
pubmed: 18717110
Wilderness Environ Med. 2001 Winter;12(4):256-62
pubmed: 11769922
Resuscitation. 2003 Jul;58(1):81-8
pubmed: 12867313
Resuscitation. 2021 Jan;158:175-182
pubmed: 33249253
Wilderness Environ Med. 2009 Spring;20(1):61-5
pubmed: 19364164
Resuscitation. 2020 Jan 1;146:155-160
pubmed: 31812665
Wilderness Environ Med. 2019 Jun;30(2):191-194
pubmed: 31005608
Resuscitation. 2013 Feb;84(2):239-43
pubmed: 22771873
PLoS Curr. 2013 Apr 16;5:
pubmed: 23857161
High Alt Med Biol. 2007 Spring;8(1):56-61
pubmed: 17394418
Inhal Toxicol. 2014 Apr;26(5):259-70
pubmed: 24601903
N Engl J Med. 2007 Jun 21;356(25):2655-6
pubmed: 17582084
Wilderness Environ Med. 2016 Jun;27(2):321-5
pubmed: 27140319
Resuscitation. 2016 Aug;105:173-6
pubmed: 27312137
Nature. 1994 Mar 3;368(6466):21
pubmed: 7969398
CMAJ. 2011 Apr 19;183(7):789-95
pubmed: 21422139
Scand J Med Sci Sports. 2014 Oct;24(5):823-9
pubmed: 23815413
Resuscitation. 2021 Apr;161:152-219
pubmed: 33773826
Sci Rep. 2017 Dec 15;7(1):17675
pubmed: 29247235
Resuscitation. 2013 May;84(5):539-46
pubmed: 23123559