Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Jornal Brasileiro de Pneumologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132014000300294 |
Resumo: | Objective: Discomfort and noncompliance with noninvasive ventilation (NIV) interfaces are obstacles to NIV success. Total face masks (TFMs) are considered to be a very comfortable NIV interface. However, due to their large internal volume and consequent increased CO2 rebreathing, their orifices allow proximal leaks to enhance CO2 elimination. The ventilators used in the ICU might not adequately compensate for such leakage. In this study, we attempted to determine whether ICU ventilators in NIV mode are suitable for use with a leaky TFM. Methods: This was a bench study carried out in a university research laboratory. Eight ICU ventilators equipped with NIV mode and one NIV ventilator were connected to a TFM with major leaks. All were tested at two positive end-expiratory pressure (PEEP) levels and three pressure support levels. The variables analyzed were ventilation trigger, cycling off, total leak, and pressurization. Results: Of the eight ICU ventilators tested, four did not work (autotriggering or inappropriate turning off due to misdetection of disconnection); three worked with some problems (low PEEP or high cycling delay); and one worked properly. Conclusions: The majority of the ICU ventilators tested were not suitable for NIV with a leaky TFM. |
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Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench studyVentilators, mechanicalPositive-pressure RespirationNoninvasive ventilationEquipment safetyEquipment failureMasks Objective: Discomfort and noncompliance with noninvasive ventilation (NIV) interfaces are obstacles to NIV success. Total face masks (TFMs) are considered to be a very comfortable NIV interface. However, due to their large internal volume and consequent increased CO2 rebreathing, their orifices allow proximal leaks to enhance CO2 elimination. The ventilators used in the ICU might not adequately compensate for such leakage. In this study, we attempted to determine whether ICU ventilators in NIV mode are suitable for use with a leaky TFM. Methods: This was a bench study carried out in a university research laboratory. Eight ICU ventilators equipped with NIV mode and one NIV ventilator were connected to a TFM with major leaks. All were tested at two positive end-expiratory pressure (PEEP) levels and three pressure support levels. The variables analyzed were ventilation trigger, cycling off, total leak, and pressurization. Results: Of the eight ICU ventilators tested, four did not work (autotriggering or inappropriate turning off due to misdetection of disconnection); three worked with some problems (low PEEP or high cycling delay); and one worked properly. Conclusions: The majority of the ICU ventilators tested were not suitable for NIV with a leaky TFM. Sociedade Brasileira de Pneumologia e Tisiologia2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132014000300294Jornal Brasileiro de Pneumologia v.40 n.3 2014reponame:Jornal Brasileiro de Pneumologia (Online)instname:Sociedade Brasileira de Pneumologia e Tisiologia (SBPT)instacron:SBPT10.1590/S1806-37132014000300013info:eu-repo/semantics/openAccessNakamura,Maria Aparecida MiyukiCosta,Eduardo Leite VieiraCarvalho,Carlos Roberto RibeiroTucci,Mauro Robertoeng2014-07-10T00:00:00Zoai:scielo:S1806-37132014000300294Revistahttp://www.jornaldepneumologia.com.br/default.aspONGhttps://old.scielo.br/oai/scielo-oai.php||jbp@jbp.org.br|| jpneumo@jornaldepneumologia.com.br1806-37561806-3713opendoar:2014-07-10T00:00Jornal Brasileiro de Pneumologia (Online) - Sociedade Brasileira de Pneumologia e Tisiologia (SBPT)false |
dc.title.none.fl_str_mv |
Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study |
title |
Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study |
spellingShingle |
Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study Nakamura,Maria Aparecida Miyuki Ventilators, mechanical Positive-pressure Respiration Noninvasive ventilation Equipment safety Equipment failure Masks |
title_short |
Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study |
title_full |
Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study |
title_fullStr |
Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study |
title_full_unstemmed |
Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study |
title_sort |
Performance of ICU ventilators during noninvasive ventilation with large leaks in a total face mask: a bench study |
author |
Nakamura,Maria Aparecida Miyuki |
author_facet |
Nakamura,Maria Aparecida Miyuki Costa,Eduardo Leite Vieira Carvalho,Carlos Roberto Ribeiro Tucci,Mauro Roberto |
author_role |
author |
author2 |
Costa,Eduardo Leite Vieira Carvalho,Carlos Roberto Ribeiro Tucci,Mauro Roberto |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Nakamura,Maria Aparecida Miyuki Costa,Eduardo Leite Vieira Carvalho,Carlos Roberto Ribeiro Tucci,Mauro Roberto |
dc.subject.por.fl_str_mv |
Ventilators, mechanical Positive-pressure Respiration Noninvasive ventilation Equipment safety Equipment failure Masks |
topic |
Ventilators, mechanical Positive-pressure Respiration Noninvasive ventilation Equipment safety Equipment failure Masks |
description |
Objective: Discomfort and noncompliance with noninvasive ventilation (NIV) interfaces are obstacles to NIV success. Total face masks (TFMs) are considered to be a very comfortable NIV interface. However, due to their large internal volume and consequent increased CO2 rebreathing, their orifices allow proximal leaks to enhance CO2 elimination. The ventilators used in the ICU might not adequately compensate for such leakage. In this study, we attempted to determine whether ICU ventilators in NIV mode are suitable for use with a leaky TFM. Methods: This was a bench study carried out in a university research laboratory. Eight ICU ventilators equipped with NIV mode and one NIV ventilator were connected to a TFM with major leaks. All were tested at two positive end-expiratory pressure (PEEP) levels and three pressure support levels. The variables analyzed were ventilation trigger, cycling off, total leak, and pressurization. Results: Of the eight ICU ventilators tested, four did not work (autotriggering or inappropriate turning off due to misdetection of disconnection); three worked with some problems (low PEEP or high cycling delay); and one worked properly. Conclusions: The majority of the ICU ventilators tested were not suitable for NIV with a leaky TFM. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132014000300294 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-37132014000300294 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1806-37132014000300013 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Pneumologia e Tisiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Pneumologia e Tisiologia |
dc.source.none.fl_str_mv |
Jornal Brasileiro de Pneumologia v.40 n.3 2014 reponame:Jornal Brasileiro de Pneumologia (Online) instname:Sociedade Brasileira de Pneumologia e Tisiologia (SBPT) instacron:SBPT |
instname_str |
Sociedade Brasileira de Pneumologia e Tisiologia (SBPT) |
instacron_str |
SBPT |
institution |
SBPT |
reponame_str |
Jornal Brasileiro de Pneumologia (Online) |
collection |
Jornal Brasileiro de Pneumologia (Online) |
repository.name.fl_str_mv |
Jornal Brasileiro de Pneumologia (Online) - Sociedade Brasileira de Pneumologia e Tisiologia (SBPT) |
repository.mail.fl_str_mv |
||jbp@jbp.org.br|| jpneumo@jornaldepneumologia.com.br |
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1750318345927786496 |