Norepinephrine weaning in septic shock patients by closed loop control based on fuzzy logic

The rate of weaning of vasopressors drugs is usually an empirical choice made by the treating in critically ill patients. We applied fuzzy logic principles to modify intravenous norepinephrine (noradrenaline) infusion rates during norepinephrine infusion in septic patients in order to reduce the dur...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:American journal of respiratory and critical care medicine 2008-01, Vol.12 (6), p.R155-R155, Article R155
Hauptverfasser: Merouani, Mehdi, Guignard, Bruno, Vincent, François, Borron, Stephen W, Karoubi, Philippe, Fosse, Jean-Philippe, Cohen, Yves, Clec'h, Christophe, Vicaut, Eric, Marbeuf-Gueye, Carole, Lapostolle, Frederic, Adnet, Frederic
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page R155
container_issue 6
container_start_page R155
container_title American journal of respiratory and critical care medicine
container_volume 12
creator Merouani, Mehdi
Guignard, Bruno
Vincent, François
Borron, Stephen W
Karoubi, Philippe
Fosse, Jean-Philippe
Cohen, Yves
Clec'h, Christophe
Vicaut, Eric
Marbeuf-Gueye, Carole
Lapostolle, Frederic
Adnet, Frederic
description The rate of weaning of vasopressors drugs is usually an empirical choice made by the treating in critically ill patients. We applied fuzzy logic principles to modify intravenous norepinephrine (noradrenaline) infusion rates during norepinephrine infusion in septic patients in order to reduce the duration of shock. Septic patients were randomly assigned to norepinephrine infused either at the clinician's discretion (control group) or under closed-loop control based on fuzzy logic (fuzzy group). The infusion rate changed automatically after analysis of mean arterial pressure in the fuzzy group. The primary end-point was time to cessation of norepinephrine. The secondary end-points were 28-day survival, total amount of norepinephine infused and duration of mechanical ventilation. Nineteen patients were randomly assigned to fuzzy group and 20 to control group. Weaning of norepinephrine was achieved in 18 of the 20 control patients and in all 19 fuzzy group patients. Median (interquartile range) duration of shock was significantly shorter in the fuzzy group than in the control group (28.5 [20.5 to 42] hours versus 57.5 [43.7 to 117.5] hours; P < 0.0001). There was no significant difference in duration of mechanical ventilation or survival at 28 days between the two groups. The median (interquartile range) total amount of norepinephrine infused during shock was significantly lower in the fuzzy group than in the control group (0.6 [0.2 to 1.0] microg/kg versus 1.4 [0.6 to 2.7] microg/kg; P < 0.01). Our study has shown a reduction in norepinephrine weaning duration in septic patients enrolled in the fuzzy group. We attribute this reduction to fuzzy control of norepinephrine infusion. Trial registration: Clinicaltrials.gov NCT00763906.
doi_str_mv 10.1186/cc7149
format Article
fullrecord <record><control><sourceid>gale_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_2646320</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A191404976</galeid><sourcerecordid>A191404976</sourcerecordid><originalsourceid>FETCH-LOGICAL-b583t-5819c581fb7005586e90c3f8a50dd60f938b4cb6fb835d3724af58b36dee686f3</originalsourceid><addsrcrecordid>eNp1kt9rFDEQxxdRbK36J0jwoU9um2x-bPIiHEVt4bAvCoIPIckmd6m7yZrsVq5_vSl7eG1BApMw85mZLzOpqrcIniHE2bkxLSLiWXWMCGM1g-LH8_LGjNScYnpUvcr5BkLUcoZfVkdIQMYRwsfVz68x2dEHO25TseCPVcGHDfABZDtO3oC8jeYXGNXkbZgy0Dtg-phtB_oYR2BimFLsgVb3rhiAm-_udiW28eZ19cKpPts3-_uk-v7507eLy3p9_eXqYrWuNeV4qilHwhTjdAshpZxZAQ12XFHYdQw6gbkmRjOnOaYdbhuiHOUas85axpnDJ9XHpe4468F2puhMqpdj8oNKOxmVl48jwW_lJt7KhhGGG1gKfFgKbJ-kXa7W0ods0yAhxFRw3NyigosF1z7-p9_jiImDXBZUck_3WlP8Pds8ycFnY_teBRvnLBljgjaUFPD9E_AmzimUOUokKKEtorRAZwu0Ub0tSl0s_Uw5nR18WY11vvhXSCACiWjZob1JMedk3T_VCMr7j3TQ-e7hTA_Y_ufgv78BxRw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>195457155</pqid></control><display><type>article</type><title>Norepinephrine weaning in septic shock patients by closed loop control based on fuzzy logic</title><source>MEDLINE</source><source>American Thoracic Society (ATS) Journals Online</source><source>DOAJ Directory of Open Access Journals</source><source>EZB-FREE-00999 freely available EZB journals</source><source>PubMed Central</source><source>Alma/SFX Local Collection</source><source>SpringerLink Journals - AutoHoldings</source><source>Journals@Ovid Complete</source><source>Springer Nature OA Free Journals</source><creator>Merouani, Mehdi ; Guignard, Bruno ; Vincent, François ; Borron, Stephen W ; Karoubi, Philippe ; Fosse, Jean-Philippe ; Cohen, Yves ; Clec'h, Christophe ; Vicaut, Eric ; Marbeuf-Gueye, Carole ; Lapostolle, Frederic ; Adnet, Frederic</creator><creatorcontrib>Merouani, Mehdi ; Guignard, Bruno ; Vincent, François ; Borron, Stephen W ; Karoubi, Philippe ; Fosse, Jean-Philippe ; Cohen, Yves ; Clec'h, Christophe ; Vicaut, Eric ; Marbeuf-Gueye, Carole ; Lapostolle, Frederic ; Adnet, Frederic</creatorcontrib><description>The rate of weaning of vasopressors drugs is usually an empirical choice made by the treating in critically ill patients. We applied fuzzy logic principles to modify intravenous norepinephrine (noradrenaline) infusion rates during norepinephrine infusion in septic patients in order to reduce the duration of shock. Septic patients were randomly assigned to norepinephrine infused either at the clinician's discretion (control group) or under closed-loop control based on fuzzy logic (fuzzy group). The infusion rate changed automatically after analysis of mean arterial pressure in the fuzzy group. The primary end-point was time to cessation of norepinephrine. The secondary end-points were 28-day survival, total amount of norepinephine infused and duration of mechanical ventilation. Nineteen patients were randomly assigned to fuzzy group and 20 to control group. Weaning of norepinephrine was achieved in 18 of the 20 control patients and in all 19 fuzzy group patients. Median (interquartile range) duration of shock was significantly shorter in the fuzzy group than in the control group (28.5 [20.5 to 42] hours versus 57.5 [43.7 to 117.5] hours; P &lt; 0.0001). There was no significant difference in duration of mechanical ventilation or survival at 28 days between the two groups. The median (interquartile range) total amount of norepinephrine infused during shock was significantly lower in the fuzzy group than in the control group (0.6 [0.2 to 1.0] microg/kg versus 1.4 [0.6 to 2.7] microg/kg; P &lt; 0.01). Our study has shown a reduction in norepinephrine weaning duration in septic patients enrolled in the fuzzy group. We attribute this reduction to fuzzy control of norepinephrine infusion. Trial registration: Clinicaltrials.gov NCT00763906.</description><identifier>ISSN: 1364-8535</identifier><identifier>ISSN: 1073-449X</identifier><identifier>EISSN: 1466-609X</identifier><identifier>EISSN: 1364-8535</identifier><identifier>EISSN: 1535-4970</identifier><identifier>DOI: 10.1186/cc7149</identifier><identifier>PMID: 19068113</identifier><language>eng</language><publisher>England: BioMed Central Ltd</publisher><subject>Adult ; Aged ; Care and treatment ; Dosage and administration ; Female ; France ; Fuzzy Logic ; Health aspects ; Humans ; Infusions, Intravenous ; Intensive Care Units ; Life Sciences ; Male ; Middle Aged ; Noradrenaline ; Norepinephrine - administration &amp; dosage ; Norepinephrine - therapeutic use ; Santé publique et épidémiologie ; Septic shock ; Shock, Septic - drug therapy ; Vasoconstrictor Agents - administration &amp; dosage ; Vasoconstrictor Agents - therapeutic use ; Ventilator weaning ; Withholding Treatment</subject><ispartof>American journal of respiratory and critical care medicine, 2008-01, Vol.12 (6), p.R155-R155, Article R155</ispartof><rights>COPYRIGHT 2008 BioMed Central Ltd.</rights><rights>Copyright National Library of Medicine - MEDLINE Abstracts 2008</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><rights>Copyright © 2008 Merouani et al.; licensee BioMed Central Ltd. 2008 Merouani et al.; licensee BioMed Central Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b583t-5819c581fb7005586e90c3f8a50dd60f938b4cb6fb835d3724af58b36dee686f3</citedby><cites>FETCH-LOGICAL-b583t-5819c581fb7005586e90c3f8a50dd60f938b4cb6fb835d3724af58b36dee686f3</cites><orcidid>0000-0001-6303-8557</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2646320/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC2646320/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19068113$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://inserm.hal.science/inserm-00359832$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Merouani, Mehdi</creatorcontrib><creatorcontrib>Guignard, Bruno</creatorcontrib><creatorcontrib>Vincent, François</creatorcontrib><creatorcontrib>Borron, Stephen W</creatorcontrib><creatorcontrib>Karoubi, Philippe</creatorcontrib><creatorcontrib>Fosse, Jean-Philippe</creatorcontrib><creatorcontrib>Cohen, Yves</creatorcontrib><creatorcontrib>Clec'h, Christophe</creatorcontrib><creatorcontrib>Vicaut, Eric</creatorcontrib><creatorcontrib>Marbeuf-Gueye, Carole</creatorcontrib><creatorcontrib>Lapostolle, Frederic</creatorcontrib><creatorcontrib>Adnet, Frederic</creatorcontrib><title>Norepinephrine weaning in septic shock patients by closed loop control based on fuzzy logic</title><title>American journal of respiratory and critical care medicine</title><addtitle>Crit Care</addtitle><description>The rate of weaning of vasopressors drugs is usually an empirical choice made by the treating in critically ill patients. We applied fuzzy logic principles to modify intravenous norepinephrine (noradrenaline) infusion rates during norepinephrine infusion in septic patients in order to reduce the duration of shock. Septic patients were randomly assigned to norepinephrine infused either at the clinician's discretion (control group) or under closed-loop control based on fuzzy logic (fuzzy group). The infusion rate changed automatically after analysis of mean arterial pressure in the fuzzy group. The primary end-point was time to cessation of norepinephrine. The secondary end-points were 28-day survival, total amount of norepinephine infused and duration of mechanical ventilation. Nineteen patients were randomly assigned to fuzzy group and 20 to control group. Weaning of norepinephrine was achieved in 18 of the 20 control patients and in all 19 fuzzy group patients. Median (interquartile range) duration of shock was significantly shorter in the fuzzy group than in the control group (28.5 [20.5 to 42] hours versus 57.5 [43.7 to 117.5] hours; P &lt; 0.0001). There was no significant difference in duration of mechanical ventilation or survival at 28 days between the two groups. The median (interquartile range) total amount of norepinephrine infused during shock was significantly lower in the fuzzy group than in the control group (0.6 [0.2 to 1.0] microg/kg versus 1.4 [0.6 to 2.7] microg/kg; P &lt; 0.01). Our study has shown a reduction in norepinephrine weaning duration in septic patients enrolled in the fuzzy group. We attribute this reduction to fuzzy control of norepinephrine infusion. Trial registration: Clinicaltrials.gov NCT00763906.</description><subject>Adult</subject><subject>Aged</subject><subject>Care and treatment</subject><subject>Dosage and administration</subject><subject>Female</subject><subject>France</subject><subject>Fuzzy Logic</subject><subject>Health aspects</subject><subject>Humans</subject><subject>Infusions, Intravenous</subject><subject>Intensive Care Units</subject><subject>Life Sciences</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Noradrenaline</subject><subject>Norepinephrine - administration &amp; dosage</subject><subject>Norepinephrine - therapeutic use</subject><subject>Santé publique et épidémiologie</subject><subject>Septic shock</subject><subject>Shock, Septic - drug therapy</subject><subject>Vasoconstrictor Agents - administration &amp; dosage</subject><subject>Vasoconstrictor Agents - therapeutic use</subject><subject>Ventilator weaning</subject><subject>Withholding Treatment</subject><issn>1364-8535</issn><issn>1073-449X</issn><issn>1466-609X</issn><issn>1364-8535</issn><issn>1535-4970</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kt9rFDEQxxdRbK36J0jwoU9um2x-bPIiHEVt4bAvCoIPIckmd6m7yZrsVq5_vSl7eG1BApMw85mZLzOpqrcIniHE2bkxLSLiWXWMCGM1g-LH8_LGjNScYnpUvcr5BkLUcoZfVkdIQMYRwsfVz68x2dEHO25TseCPVcGHDfABZDtO3oC8jeYXGNXkbZgy0Dtg-phtB_oYR2BimFLsgVb3rhiAm-_udiW28eZ19cKpPts3-_uk-v7507eLy3p9_eXqYrWuNeV4qilHwhTjdAshpZxZAQ12XFHYdQw6gbkmRjOnOaYdbhuiHOUas85axpnDJ9XHpe4468F2puhMqpdj8oNKOxmVl48jwW_lJt7KhhGGG1gKfFgKbJ-kXa7W0ods0yAhxFRw3NyigosF1z7-p9_jiImDXBZUck_3WlP8Pds8ycFnY_teBRvnLBljgjaUFPD9E_AmzimUOUokKKEtorRAZwu0Ub0tSl0s_Uw5nR18WY11vvhXSCACiWjZob1JMedk3T_VCMr7j3TQ-e7hTA_Y_ufgv78BxRw</recordid><startdate>20080101</startdate><enddate>20080101</enddate><creator>Merouani, Mehdi</creator><creator>Guignard, Bruno</creator><creator>Vincent, François</creator><creator>Borron, Stephen W</creator><creator>Karoubi, Philippe</creator><creator>Fosse, Jean-Philippe</creator><creator>Cohen, Yves</creator><creator>Clec'h, Christophe</creator><creator>Vicaut, Eric</creator><creator>Marbeuf-Gueye, Carole</creator><creator>Lapostolle, Frederic</creator><creator>Adnet, Frederic</creator><general>BioMed Central Ltd</general><general>National Library of Medicine - MEDLINE Abstracts</general><general>American Thoracic Society</general><general>BioMed Central</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>7X8</scope><scope>1XC</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0001-6303-8557</orcidid></search><sort><creationdate>20080101</creationdate><title>Norepinephrine weaning in septic shock patients by closed loop control based on fuzzy logic</title><author>Merouani, Mehdi ; Guignard, Bruno ; Vincent, François ; Borron, Stephen W ; Karoubi, Philippe ; Fosse, Jean-Philippe ; Cohen, Yves ; Clec'h, Christophe ; Vicaut, Eric ; Marbeuf-Gueye, Carole ; Lapostolle, Frederic ; Adnet, Frederic</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b583t-5819c581fb7005586e90c3f8a50dd60f938b4cb6fb835d3724af58b36dee686f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Care and treatment</topic><topic>Dosage and administration</topic><topic>Female</topic><topic>France</topic><topic>Fuzzy Logic</topic><topic>Health aspects</topic><topic>Humans</topic><topic>Infusions, Intravenous</topic><topic>Intensive Care Units</topic><topic>Life Sciences</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Noradrenaline</topic><topic>Norepinephrine - administration &amp; dosage</topic><topic>Norepinephrine - therapeutic use</topic><topic>Santé publique et épidémiologie</topic><topic>Septic shock</topic><topic>Shock, Septic - drug therapy</topic><topic>Vasoconstrictor Agents - administration &amp; dosage</topic><topic>Vasoconstrictor Agents - therapeutic use</topic><topic>Ventilator weaning</topic><topic>Withholding Treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Merouani, Mehdi</creatorcontrib><creatorcontrib>Guignard, Bruno</creatorcontrib><creatorcontrib>Vincent, François</creatorcontrib><creatorcontrib>Borron, Stephen W</creatorcontrib><creatorcontrib>Karoubi, Philippe</creatorcontrib><creatorcontrib>Fosse, Jean-Philippe</creatorcontrib><creatorcontrib>Cohen, Yves</creatorcontrib><creatorcontrib>Clec'h, Christophe</creatorcontrib><creatorcontrib>Vicaut, Eric</creatorcontrib><creatorcontrib>Marbeuf-Gueye, Carole</creatorcontrib><creatorcontrib>Lapostolle, Frederic</creatorcontrib><creatorcontrib>Adnet, Frederic</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>American journal of respiratory and critical care medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Merouani, Mehdi</au><au>Guignard, Bruno</au><au>Vincent, François</au><au>Borron, Stephen W</au><au>Karoubi, Philippe</au><au>Fosse, Jean-Philippe</au><au>Cohen, Yves</au><au>Clec'h, Christophe</au><au>Vicaut, Eric</au><au>Marbeuf-Gueye, Carole</au><au>Lapostolle, Frederic</au><au>Adnet, Frederic</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Norepinephrine weaning in septic shock patients by closed loop control based on fuzzy logic</atitle><jtitle>American journal of respiratory and critical care medicine</jtitle><addtitle>Crit Care</addtitle><date>2008-01-01</date><risdate>2008</risdate><volume>12</volume><issue>6</issue><spage>R155</spage><epage>R155</epage><pages>R155-R155</pages><artnum>R155</artnum><issn>1364-8535</issn><issn>1073-449X</issn><eissn>1466-609X</eissn><eissn>1364-8535</eissn><eissn>1535-4970</eissn><abstract>The rate of weaning of vasopressors drugs is usually an empirical choice made by the treating in critically ill patients. We applied fuzzy logic principles to modify intravenous norepinephrine (noradrenaline) infusion rates during norepinephrine infusion in septic patients in order to reduce the duration of shock. Septic patients were randomly assigned to norepinephrine infused either at the clinician's discretion (control group) or under closed-loop control based on fuzzy logic (fuzzy group). The infusion rate changed automatically after analysis of mean arterial pressure in the fuzzy group. The primary end-point was time to cessation of norepinephrine. The secondary end-points were 28-day survival, total amount of norepinephine infused and duration of mechanical ventilation. Nineteen patients were randomly assigned to fuzzy group and 20 to control group. Weaning of norepinephrine was achieved in 18 of the 20 control patients and in all 19 fuzzy group patients. Median (interquartile range) duration of shock was significantly shorter in the fuzzy group than in the control group (28.5 [20.5 to 42] hours versus 57.5 [43.7 to 117.5] hours; P &lt; 0.0001). There was no significant difference in duration of mechanical ventilation or survival at 28 days between the two groups. The median (interquartile range) total amount of norepinephrine infused during shock was significantly lower in the fuzzy group than in the control group (0.6 [0.2 to 1.0] microg/kg versus 1.4 [0.6 to 2.7] microg/kg; P &lt; 0.01). Our study has shown a reduction in norepinephrine weaning duration in septic patients enrolled in the fuzzy group. We attribute this reduction to fuzzy control of norepinephrine infusion. Trial registration: Clinicaltrials.gov NCT00763906.</abstract><cop>England</cop><pub>BioMed Central Ltd</pub><pmid>19068113</pmid><doi>10.1186/cc7149</doi><orcidid>https://orcid.org/0000-0001-6303-8557</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1364-8535
ispartof American journal of respiratory and critical care medicine, 2008-01, Vol.12 (6), p.R155-R155, Article R155
issn 1364-8535
1073-449X
1466-609X
1364-8535
1535-4970
language eng
recordid cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_2646320
source MEDLINE; American Thoracic Society (ATS) Journals Online; DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals; PubMed Central; Alma/SFX Local Collection; SpringerLink Journals - AutoHoldings; Journals@Ovid Complete; Springer Nature OA Free Journals
subjects Adult
Aged
Care and treatment
Dosage and administration
Female
France
Fuzzy Logic
Health aspects
Humans
Infusions, Intravenous
Intensive Care Units
Life Sciences
Male
Middle Aged
Noradrenaline
Norepinephrine - administration & dosage
Norepinephrine - therapeutic use
Santé publique et épidémiologie
Septic shock
Shock, Septic - drug therapy
Vasoconstrictor Agents - administration & dosage
Vasoconstrictor Agents - therapeutic use
Ventilator weaning
Withholding Treatment
title Norepinephrine weaning in septic shock patients by closed loop control based on fuzzy logic
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-04T10%3A53%3A57IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Norepinephrine%20weaning%20in%20septic%20shock%20patients%20by%20closed%20loop%20control%20based%20on%20fuzzy%20logic&rft.jtitle=American%20journal%20of%20respiratory%20and%20critical%20care%20medicine&rft.au=Merouani,%20Mehdi&rft.date=2008-01-01&rft.volume=12&rft.issue=6&rft.spage=R155&rft.epage=R155&rft.pages=R155-R155&rft.artnum=R155&rft.issn=1364-8535&rft.eissn=1466-609X&rft_id=info:doi/10.1186/cc7149&rft_dat=%3Cgale_pubme%3EA191404976%3C/gale_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=195457155&rft_id=info:pmid/19068113&rft_galeid=A191404976&rfr_iscdi=true