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Fast-track ventilation strategy to cater for pandemic patient isolation surges

Identifieur interne : 000A66 ( Pmc/Checkpoint ); précédent : 000A65; suivant : 000A67

Fast-track ventilation strategy to cater for pandemic patient isolation surges

Auteurs : P. L. Yuen [République populaire de Chine] ; R. Yam [République populaire de Chine] ; R. Yung [République populaire de Chine] ; K. L. Choy [République populaire de Chine]

Source :

RBID : PMC:7114585

Abstract

SummaryBackground

The shortage of isolation facilities in hospitals was highlighted during the severe acute respiratory syndrome (SARS) pandemic in 2003. Yet, as the nature and scale of future pandemics cannot be adequately estimated, it is difficult to justify construction of sufficient isolation facilities. A fast-track and cost-effective ventilation strategy for the retrofitting of existing general wards could help hospitals deal with patient surges.

Aim

This article reviews the effectiveness of a fast-track, makeshift isolation approach employed during the SARS outbreak which involved installing simple window-mounted exhaust fans to create negative-pressure airflow in hospital general wards.

Methods

Computational fluid dynamics (CFD) was used to assess by simulation whether the approach adopted meets US Centers for Disease and Control and Prevention requirements for properly constructed isolation wards.

Findings

CFD simulation revealed that this makeshift approach could match the ventilation standards of isolation rooms. The approach was certainly effective as no secondary infections were reported in hospitals that used it during SARS.

Conclusions

When there is a shortfall in isolation facilities to accommodate a surge in patients, the proposed ventilation set-up could be quickly and widely implemented by existing general wards.


Url:
DOI: 10.1016/j.jhin.2012.04.013
PubMed: 22738612
PubMed Central: 7114585


Affiliations:


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PMC:7114585

Le document en format XML

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<p>The shortage of isolation facilities in hospitals was highlighted during the severe acute respiratory syndrome (SARS) pandemic in 2003. Yet, as the nature and scale of future pandemics cannot be adequately estimated, it is difficult to justify construction of sufficient isolation facilities. A fast-track and cost-effective ventilation strategy for the retrofitting of existing general wards could help hospitals deal with patient surges.</p>
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<title>Aim</title>
<p>This article reviews the effectiveness of a fast-track, makeshift isolation approach employed during the SARS outbreak which involved installing simple window-mounted exhaust fans to create negative-pressure airflow in hospital general wards.</p>
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<title>Methods</title>
<p>Computational fluid dynamics (CFD) was used to assess by simulation whether the approach adopted meets US Centers for Disease and Control and Prevention requirements for properly constructed isolation wards.</p>
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<title>Findings</title>
<p>CFD simulation revealed that this makeshift approach could match the ventilation standards of isolation rooms. The approach was certainly effective as no secondary infections were reported in hospitals that used it during SARS.</p>
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<title>Conclusions</title>
<p>When there is a shortfall in isolation facilities to accommodate a surge in patients, the proposed ventilation set-up could be quickly and widely implemented by existing general wards.</p>
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<name>
<surname>Yuen</surname>
<given-names>P.L.</given-names>
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<name>
<surname>Yam</surname>
<given-names>R.</given-names>
</name>
<email>MERY@cityu.edu.hk</email>
<xref rid="aff1" ref-type="aff">a</xref>
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<surname>Yung</surname>
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<aff id="aff1">
<label>a</label>
City University of Hong Kong, Hong Kong, China</aff>
<aff id="aff2">
<label>b</label>
Hong Kong Sanatorium and Hospital, Hong Kong, China</aff>
<aff id="aff3">
<label>c</label>
Hong Kong Polytechnic University, Hong Kong, China</aff>
<author-notes>
<corresp id="cor1">
<label></label>
Corresponding author. Address: SEEM Department, College of Science and Engineering, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong, China. Tel.: +86 852 3442 8417; fax: +86 852 3442 0172.
<email>MERY@cityu.edu.hk</email>
</corresp>
</author-notes>
<pub-date pub-type="pmc-release">
<day>26</day>
<month>6</month>
<year>2012</year>
</pub-date>
<pmc-comment> PMC Release delay is 0 months and 0 days and was based on .</pmc-comment>
<pub-date pub-type="ppub">
<month>8</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>26</day>
<month>6</month>
<year>2012</year>
</pub-date>
<volume>81</volume>
<issue>4</issue>
<fpage>246</fpage>
<lpage>250</lpage>
<history>
<date date-type="received">
<day>9</day>
<month>5</month>
<year>2011</year>
</date>
<date date-type="accepted">
<day>12</day>
<month>4</month>
<year>2012</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright © 2012 The Healthcare Infection Society. Published by Elsevier Ltd. All rights reserved.</copyright-statement>
<copyright-year>2012</copyright-year>
<copyright-holder>The Healthcare Infection Society</copyright-holder>
<license>
<license-p>Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.</license-p>
</license>
</permissions>
<abstract>
<title>Summary</title>
<sec>
<title>Background</title>
<p>The shortage of isolation facilities in hospitals was highlighted during the severe acute respiratory syndrome (SARS) pandemic in 2003. Yet, as the nature and scale of future pandemics cannot be adequately estimated, it is difficult to justify construction of sufficient isolation facilities. A fast-track and cost-effective ventilation strategy for the retrofitting of existing general wards could help hospitals deal with patient surges.</p>
</sec>
<sec>
<title>Aim</title>
<p>This article reviews the effectiveness of a fast-track, makeshift isolation approach employed during the SARS outbreak which involved installing simple window-mounted exhaust fans to create negative-pressure airflow in hospital general wards.</p>
</sec>
<sec>
<title>Methods</title>
<p>Computational fluid dynamics (CFD) was used to assess by simulation whether the approach adopted meets US Centers for Disease and Control and Prevention requirements for properly constructed isolation wards.</p>
</sec>
<sec>
<title>Findings</title>
<p>CFD simulation revealed that this makeshift approach could match the ventilation standards of isolation rooms. The approach was certainly effective as no secondary infections were reported in hospitals that used it during SARS.</p>
</sec>
<sec>
<title>Conclusions</title>
<p>When there is a shortfall in isolation facilities to accommodate a surge in patients, the proposed ventilation set-up could be quickly and widely implemented by existing general wards.</p>
</sec>
</abstract>
<kwd-group>
<title>Keywords</title>
<kwd>Air ventilation</kwd>
<kwd>Computational fluid dynamics</kwd>
<kwd>Infection control</kwd>
<kwd>Pandemic</kwd>
<kwd>Severe acute respiratory syndrome</kwd>
<kwd>Surge capacity</kwd>
</kwd-group>
</article-meta>
</front>
</pmc>
<affiliations>
<list>
<country>
<li>République populaire de Chine</li>
</country>
</list>
<tree>
<country name="République populaire de Chine">
<noRegion>
<name sortKey="Yuen, P L" sort="Yuen, P L" uniqKey="Yuen P" first="P. L." last="Yuen">P. L. Yuen</name>
</noRegion>
<name sortKey="Choy, K L" sort="Choy, K L" uniqKey="Choy K" first="K. L." last="Choy">K. L. Choy</name>
<name sortKey="Yam, R" sort="Yam, R" uniqKey="Yam R" first="R." last="Yam">R. Yam</name>
<name sortKey="Yung, R" sort="Yung, R" uniqKey="Yung R" first="R." last="Yung">R. Yung</name>
</country>
</tree>
</affiliations>
</record>

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