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*Studies from China reported (4% to 13%) of [[COVID-19]] patients to have received [[Positive airway pressure|non-invasive positive pressure ventilation (NIPPV)]].<ref name="AlhazzaniMøller2020">{{cite journal|last1=Alhazzani|first1=Waleed|last2=Møller|first2=Morten Hylander|last3=Arabi|first3=Yaseen M.|last4=Loeb|first4=Mark|last5=Gong|first5=Michelle Ng|last6=Fan|first6=Eddy|last7=Oczkowski|first7=Simon|last8=Levy|first8=Mitchell M.|last9=Derde|first9=Lennie|last10=Dzierba|first10=Amy|last11=Du|first11=Bin|last12=Aboodi|first12=Michael|last13=Wunsch|first13=Hannah|last14=Cecconi|first14=Maurizio|last15=Koh|first15=Younsuck|last16=Chertow|first16=Daniel S.|last17=Maitland|first17=Kathryn|last18=Alshamsi|first18=Fayez|last19=Belley-Cote|first19=Emilie|last20=Greco|first20=Massimiliano|last21=Laundy|first21=Matthew|last22=Morgan|first22=Jill S.|last23=Kesecioglu|first23=Jozef|last24=McGeer|first24=Allison|last25=Mermel|first25=Leonard|last26=Mammen|first26=Manoj J.|last27=Alexander|first27=Paul E.|last28=Arrington|first28=Amy|last29=Centofanti|first29=John E.|last30=Citerio|first30=Giuseppe|last31=Baw|first31=Bandar|last32=Memish|first32=Ziad A.|last33=Hammond|first33=Naomi|last34=Hayden|first34=Frederick G.|last35=Evans|first35=Laura|last36=Rhodes|first36=Andrew|title=Surviving Sepsis Campaign: Guidelines on the Management of Critically Ill Adults with Coronavirus Disease 2019 (COVID-19)|journal=Critical Care Medicine|volume=48|issue=6|year=2020|pages=e440–e469|issn=0090-3493|doi=10.1097/CCM.0000000000004363}}</ref>
*Studies from China reported (4% to 13%) of [[COVID-19]] patients to have received [[Positive airway pressure|non-invasive positive pressure ventilation (NIPPV)]].<ref name="AlhazzaniMøller2020">{{cite journal|last1=Alhazzani|first1=Waleed|last2=Møller|first2=Morten Hylander|last3=Arabi|first3=Yaseen M.|last4=Loeb|first4=Mark|last5=Gong|first5=Michelle Ng|last6=Fan|first6=Eddy|last7=Oczkowski|first7=Simon|last8=Levy|first8=Mitchell M.|last9=Derde|first9=Lennie|last10=Dzierba|first10=Amy|last11=Du|first11=Bin|last12=Aboodi|first12=Michael|last13=Wunsch|first13=Hannah|last14=Cecconi|first14=Maurizio|last15=Koh|first15=Younsuck|last16=Chertow|first16=Daniel S.|last17=Maitland|first17=Kathryn|last18=Alshamsi|first18=Fayez|last19=Belley-Cote|first19=Emilie|last20=Greco|first20=Massimiliano|last21=Laundy|first21=Matthew|last22=Morgan|first22=Jill S.|last23=Kesecioglu|first23=Jozef|last24=McGeer|first24=Allison|last25=Mermel|first25=Leonard|last26=Mammen|first26=Manoj J.|last27=Alexander|first27=Paul E.|last28=Arrington|first28=Amy|last29=Centofanti|first29=John E.|last30=Citerio|first30=Giuseppe|last31=Baw|first31=Bandar|last32=Memish|first32=Ziad A.|last33=Hammond|first33=Naomi|last34=Hayden|first34=Frederick G.|last35=Evans|first35=Laura|last36=Rhodes|first36=Andrew|title=Surviving Sepsis Campaign: Guidelines on the Management of Critically Ill Adults with Coronavirus Disease 2019 (COVID-19)|journal=Critical Care Medicine|volume=48|issue=6|year=2020|pages=e440–e469|issn=0090-3493|doi=10.1097/CCM.0000000000004363}}</ref>


Invasive mechanical ventilation
===Invasive mechanical ventilation===
The Chinese [[CDC]] reports the case-fatality rate to be higher than 50% in [[patients]] who received invasive mechanical ventilation.<ref name="WuMcGoogan2020">{{cite journal|last1=Wu|first1=Zunyou|last2=McGoogan|first2=Jennifer M.|title=Characteristics of and Important Lessons From the Coronavirus Disease 2019 (COVID-19) Outbreak in China|journal=JAMA|volume=323|issue=13|year=2020|pages=1239|issn=0098-7484|doi=10.1001/jama.2020.2648}}</ref>
*The vascular [[endothelium|endothelial]] injury in [[COVID-19-associated acute respiratory distress syndrome]] (CARDS) and diverse [[mortality rate]]s across the world in CARDS patients arbitrates the importance of different mechanical ventilation strategies.
*The Chinese [[CDC]] reports the case-fatality rate to be higher than 50% in [[patients]] who received invasive mechanical ventilation.<ref name="WuMcGoogan2020">{{cite journal|last1=Wu|first1=Zunyou|last2=McGoogan|first2=Jennifer M.|title=Characteristics of and Important Lessons From the Coronavirus Disease 2019 (COVID-19) Outbreak in China|journal=JAMA|volume=323|issue=13|year=2020|pages=1239|issn=0098-7484|doi=10.1001/jama.2020.2648}}</ref>
*According to the American Society of Anesthesiology based upon the experience of Chinese anesthesiologists, timely (neither premature nor late) [[intubation]] and ventilation most effectual breathing assistance.<ref name="urlStrategies for health care response to COVID-19 shared by Chinese anesthesiologists">{{cite web |url=https://www.asahq.org/about-asa/newsroom/news-releases/2020/03/strategies-for-health-care-response-to-covid-19-shared-by-chinese-anesthesiologists |title=Strategies for health care response to COVID-19 shared by Chinese anesthesiologists |format= |work= |accessdate=}}</ref>






*[[COVID-19-associated acute respiratory distress syndrome]] (CARDS)
 
The vascular [[endothelium|endothelial]] injury in CARDS and diverse [[mortality rate]]s across the world in CARDS patients arbitrates the importance of different mechanical ventilation strategies.
*
 
Marini et al. suggest  
Marini et al. suggest  
**Lower PEEP: “type L,” characterized by low lung elastance (high compliance), lower lung weight as estimated by CT scan, and a low response to PEEP  
**Lower PEEP: “type L,” characterized by low lung elastance (high compliance), lower lung weight as estimated by CT scan, and a low response to PEEP  
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==Intubation==
==Intubation==
According to the American Society of Anesthesiology based upon the experience of Chinese anesthesiologists, timely (neither premature nor late) [[intubation]] and ventilation most effectual breathing assistance.<ref name="urlStrategies for health care response to COVID-19 shared by Chinese anesthesiologists">{{cite web |url=https://www.asahq.org/about-asa/newsroom/news-releases/2020/03/strategies-for-health-care-response-to-covid-19-shared-by-chinese-anesthesiologists |title=Strategies for health care response to COVID-19 shared by Chinese anesthesiologists |format= |work= |accessdate=}}</ref>


<ref name="MengQiu2020">{{cite journal|last1=Meng|first1=Lingzhong|last2=Qiu|first2=Haibo|last3=Wan|first3=Li|last4=Ai|first4=Yuhang|last5=Xue|first5=Zhanggang|last6=Guo|first6=Qulian|last7=Deshpande|first7=Ranjit|last8=Zhang|first8=Lina|last9=Meng|first9=Jie|last10=Tong|first10=Chuanyao|last11=Liu|first11=Hong|last12=Xiong|first12=Lize|title=Intubation and Ventilation amid the COVID-19 Outbreak|journal=Anesthesiology|volume=132|issue=6|year=2020|pages=1317–1332|issn=0003-3022|doi=10.1097/ALN.0000000000003296}}</ref>
<ref name="MengQiu2020">{{cite journal|last1=Meng|first1=Lingzhong|last2=Qiu|first2=Haibo|last3=Wan|first3=Li|last4=Ai|first4=Yuhang|last5=Xue|first5=Zhanggang|last6=Guo|first6=Qulian|last7=Deshpande|first7=Ranjit|last8=Zhang|first8=Lina|last9=Meng|first9=Jie|last10=Tong|first10=Chuanyao|last11=Liu|first11=Hong|last12=Xiong|first12=Lize|title=Intubation and Ventilation amid the COVID-19 Outbreak|journal=Anesthesiology|volume=132|issue=6|year=2020|pages=1317–1332|issn=0003-3022|doi=10.1097/ALN.0000000000003296}}</ref>
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===Stratagies to improve oxygenation===
===Stratagies to improve oxygenation===
====[[Mechanical ventilation initial ventilator settings#Proning|Prone position]] ventilation====
 
====[[Mechanical ventilation initial ventilator settings#Proning|Prone position ventilation]]====
*[[Mechanical ventilation initial ventilator settings#Proning|Prone positioning]] is thought to improve oxygenation by improving [[Ventilation-perfusion mismatch|ventilation/perfusion (V/Q) mismatching]] via reduced shunting of blood through under-ventilated lung tissue.
*[[Mechanical ventilation initial ventilator settings#Proning|Prone positioning]] is thought to improve oxygenation by improving [[Ventilation-perfusion mismatch|ventilation/perfusion (V/Q) mismatching]] via reduced shunting of blood through under-ventilated lung tissue.
*Research has shown that [[prone position]] ventilation in [[ARDS]] patients with acute hypoxemic [[respiratory failure]] and spontaneous or assisted breathing reduces the mortality by (28 and 90-days).<ref name="pmid29576824">{{cite journal |vauthors=Xie H, Zhou ZG, Jin W, Yuan CB, Du J, Lu J, Wang RL |title=Ventilator management for acute respiratory distress syndrome associated with avian influenza A (H7N9) virus infection: A case series |journal=World J Emerg Med |volume=9 |issue=2 |pages=118–124 |date=2018 |pmid=29576824 |pmc=5847497 |doi=10.5847/wjem.j.1920-8642.2018.02.006 |url=}}</ref>
*Research has shown that [[prone position]] ventilation in [[ARDS]] patients with acute hypoxemic [[respiratory failure]] and spontaneous or assisted breathing reduces the mortality by 28 and 90-days.<ref name="pmid29576824">{{cite journal |vauthors=Xie H, Zhou ZG, Jin W, Yuan CB, Du J, Lu J, Wang RL |title=Ventilator management for acute respiratory distress syndrome associated with avian influenza A (H7N9) virus infection: A case series |journal=World J Emerg Med |volume=9 |issue=2 |pages=118–124 |date=2018 |pmid=29576824 |pmc=5847497 |doi=10.5847/wjem.j.1920-8642.2018.02.006 |url=}}</ref>
The strategy was widely used in [[COVID-19]] patients in Wuhan, China.<ref name="MengQiu2020">{{cite journal|last1=Meng|first1=Lingzhong|last2=Qiu|first2=Haibo|last3=Wan|first3=Li|last4=Ai|first4=Yuhang|last5=Xue|first5=Zhanggang|last6=Guo|first6=Qulian|last7=Deshpande|first7=Ranjit|last8=Zhang|first8=Lina|last9=Meng|first9=Jie|last10=Tong|first10=Chuanyao|last11=Liu|first11=Hong|last12=Xiong|first12=Lize|title=Intubation and Ventilation amid the COVID-19 Outbreak|journal=Anesthesiology|volume=132|issue=6|year=2020|pages=1317–1332|issn=0003-3022|doi=10.1097/ALN.0000000000003296}}</ref>
*The strategy was widely used in [[COVID-19]] patients in Wuhan, China.<ref name="MengQiu2020">{{cite journal|last1=Meng|first1=Lingzhong|last2=Qiu|first2=Haibo|last3=Wan|first3=Li|last4=Ai|first4=Yuhang|last5=Xue|first5=Zhanggang|last6=Guo|first6=Qulian|last7=Deshpande|first7=Ranjit|last8=Zhang|first8=Lina|last9=Meng|first9=Jie|last10=Tong|first10=Chuanyao|last11=Liu|first11=Hong|last12=Xiong|first12=Lize|title=Intubation and Ventilation amid the COVID-19 Outbreak|journal=Anesthesiology|volume=132|issue=6|year=2020|pages=1317–1332|issn=0003-3022|doi=10.1097/ALN.0000000000003296}}</ref>
*[[Mechanical ventilation initial ventilator settings#Proning|Prone position]] is an early strategy rather than a desperate rescue therapy.<ref name="TeliasKatira2020">{{cite journal|last1=Telias|first1=Irene|last2=Katira|first2=Bhushan H.|last3=Brochard|first3=Laurent|title=Is the Prone Position Helpful During Spontaneous Breathing in Patients With COVID-19?|journal=JAMA|volume=323|issue=22|year=2020|pages=2265|issn=0098-7484|doi=10.1001/jama.2020.8539}}</ref> A study by Lin Ding et al. suggests that the early application of prone ventilation with HFNC and NIV, especially in [[COVID-19]] patients with moderate [[ARDS]], can help avoid intubation.<ref name="pmid32000806">{{cite journal |vauthors=Ding L, Wang L, Ma W, He H |title=Efficacy and safety of early prone positioning combined with HFNC or NIV in moderate to severe ARDS: a multi-center prospective cohort study |journal=Crit Care |volume=24 |issue=1 |pages=28 |date=January 2020 |pmid=32000806 |pmc=6993481 |doi=10.1186/s13054-020-2738-5 |url=}}</ref>
*[[Mechanical ventilation initial ventilator settings#Proning|Prone position]] is an early strategy rather than a desperate rescue therapy.<ref name="TeliasKatira2020">{{cite journal|last1=Telias|first1=Irene|last2=Katira|first2=Bhushan H.|last3=Brochard|first3=Laurent|title=Is the Prone Position Helpful During Spontaneous Breathing in Patients With COVID-19?|journal=JAMA|volume=323|issue=22|year=2020|pages=2265|issn=0098-7484|doi=10.1001/jama.2020.8539}}</ref> A study by Lin Ding et al. suggests that the early application of prone ventilation with HFNC and NIV, especially in [[COVID-19]] patients with moderate [[ARDS]], can help avoid intubation.<ref name="pmid32000806">{{cite journal |vauthors=Ding L, Wang L, Ma W, He H |title=Efficacy and safety of early prone positioning combined with HFNC or NIV in moderate to severe ARDS: a multi-center prospective cohort study |journal=Crit Care |volume=24 |issue=1 |pages=28 |date=January 2020 |pmid=32000806 |pmc=6993481 |doi=10.1186/s13054-020-2738-5 |url=}}</ref>
* [[Mechanical ventilation initial ventilator settings#Proning|Prone position]] for awake, spontaneously breathing patients with COVID-19 severe hypoxemic [[respiratory failure]] was associated with improved oxygenation. In addition, patients with an Spo2 of 95% or greater after 1 hour of the [[Mechanical ventilation initial ventilator settings#Proning|Prone position]] was associated with a lower rate of intubation. <ref name="ThompsonRanard2020">{{cite journal|last1=Thompson|first1=Alison E.|last2=Ranard|first2=Benjamin L.|last3=Wei|first3=Ying|last4=Jelic|first4=Sanja|title=Prone Positioning in Awake, Nonintubated Patients With COVID-19 Hypoxemic Respiratory Failure|journal=JAMA Internal Medicine|year=2020|issn=2168-6106|doi=10.1001/jamainternmed.2020.3030}}</ref>
* [[Mechanical ventilation initial ventilator settings#Proning|Prone position]] for awake patients during spontaneous or assisted breathing during NIV or HFNC with mild-moderate [[ARDS]] was associated with an improved oxygenation.<ref name="SartiniTresoldi2020">{{cite journal|last1=Sartini|first1=Chiara|last2=Tresoldi|first2=Moreno|last3=Scarpellini|first3=Paolo|last4=Tettamanti|first4=Andrea|last5=Carcò|first5=Francesco|last6=Landoni|first6=Giovanni|last7=Zangrillo|first7=Alberto|title=Respiratory Parameters in Patients With COVID-19 After Using Noninvasive Ventilation in the Prone Position Outside the Intensive Care Unit|journal=JAMA|volume=323|issue=22|year=2020|pages=2338|issn=0098-7484|doi=10.1001/jama.2020.7861}}</ref> To answer the question about the effectiveness, two [[Randomized controlled trial|RCTs]] are in progress {{NCT04347941}} and {{NCT04350723}}.<ref name="TeliasKatira2020">{{cite journal|last1=Telias|first1=Irene|last2=Katira|first2=Bhushan H.|last3=Brochard|first3=Laurent|title=Is the Prone Position Helpful During Spontaneous Breathing in Patients With COVID-19?|journal=JAMA|volume=323|issue=22|year=2020|pages=2265|issn=0098-7484|doi=10.1001/jama.2020.8539}}</ref> In addition, patients with an Spo2 of 95% or greater after an hour of the [[Mechanical ventilation initial ventilator settings#Proning|Prone position]] was associated with a lower rate of intubation. <ref name="ThompsonRanard2020">{{cite journal|last1=Thompson|first1=Alison E.|last2=Ranard|first2=Benjamin L.|last3=Wei|first3=Ying|last4=Jelic|first4=Sanja|title=Prone Positioning in Awake, Nonintubated Patients With COVID-19 Hypoxemic Respiratory Failure|journal=JAMA Internal Medicine|year=2020|issn=2168-6106|doi=10.1001/jamainternmed.2020.3030}}</ref>
*The American Thoracic Society/European Society of Intensive Care Medicine/Society of Critical Care Medicine Clinical Practice and Surviving Sepsis Campaign guidelines strongly recommend (moderate evidence) [[Mechanical ventilation initial ventilator settings#Proning|Prone positioning]] for more than 12 hours/day in patients with severe [[ARDS]].<ref name="FanDel Sorbo2017">{{cite journal|last1=Fan|first1=Eddy|last2=Del Sorbo|first2=Lorenzo|last3=Goligher|first3=Ewan C.|last4=Hodgson|first4=Carol L.|last5=Munshi|first5=Laveena|last6=Walkey|first6=Allan J.|last7=Adhikari|first7=Neill K. J.|last8=Amato|first8=Marcelo B. P.|last9=Branson|first9=Richard|last10=Brower|first10=Roy G.|last11=Ferguson|first11=Niall D.|last12=Gajic|first12=Ognjen|last13=Gattinoni|first13=Luciano|last14=Hess|first14=Dean|last15=Mancebo|first15=Jordi|last16=Meade|first16=Maureen O.|last17=McAuley|first17=Daniel F.|last18=Pesenti|first18=Antonio|last19=Ranieri|first19=V. Marco|last20=Rubenfeld|first20=Gordon D.|last21=Rubin|first21=Eileen|last22=Seckel|first22=Maureen|last23=Slutsky|first23=Arthur S.|last24=Talmor|first24=Daniel|last25=Thompson|first25=B. Taylor|last26=Wunsch|first26=Hannah|last27=Uleryk|first27=Elizabeth|last28=Brozek|first28=Jan|last29=Brochard|first29=Laurent J.|title=An Official American Thoracic Society/European Society of Intensive Care Medicine/Society of Critical Care Medicine Clinical Practice Guideline: Mechanical Ventilation in Adult Patients with Acute Respiratory Distress Syndrome|journal=American Journal of Respiratory and Critical Care Medicine|volume=195|issue=9|year=2017|pages=1253–1263|issn=1073-449X|doi=10.1164/rccm.201703-0548ST}}</ref><ref name="RhodesEvans2017">{{cite journal|last1=Rhodes|first1=Andrew|last2=Evans|first2=Laura E.|last3=Alhazzani|first3=Waleed|last4=Levy|first4=Mitchell M.|last5=Antonelli|first5=Massimo|last6=Ferrer|first6=Ricard|last7=Kumar|first7=Anand|last8=Sevransky|first8=Jonathan E.|last9=Sprung|first9=Charles L.|last10=Nunnally|first10=Mark E.|last11=Rochwerg|first11=Bram|last12=Rubenfeld|first12=Gordon D.|last13=Angus|first13=Derek C.|last14=Annane|first14=Djillali|last15=Beale|first15=Richard J.|last16=Bellinghan|first16=Geoffrey J.|last17=Bernard|first17=Gordon R.|last18=Chiche|first18=Jean-Daniel|last19=Coopersmith|first19=Craig|last20=De Backer|first20=Daniel P.|last21=French|first21=Craig J.|last22=Fujishima|first22=Seitaro|last23=Gerlach|first23=Herwig|last24=Hidalgo|first24=Jorge Luis|last25=Hollenberg|first25=Steven M.|last26=Jones|first26=Alan E.|last27=Karnad|first27=Dilip R.|last28=Kleinpell|first28=Ruth M.|last29=Koh|first29=Younsuk|last30=Lisboa|first30=Thiago Costa|last31=Machado|first31=Flavia R.|last32=Marini|first32=John J.|last33=Marshall|first33=John C.|last34=Mazuski|first34=John E.|last35=McIntyre|first35=Lauralyn A.|last36=McLean|first36=Anthony S.|last37=Mehta|first37=Sangeeta|last38=Moreno|first38=Rui P.|last39=Myburgh|first39=John|last40=Navalesi|first40=Paolo|last41=Nishida|first41=Osamu|last42=Osborn|first42=Tiffany M.|last43=Perner|first43=Anders|last44=Plunkett|first44=Colleen M.|last45=Ranieri|first45=Marco|last46=Schorr|first46=Christa A.|last47=Seckel|first47=Maureen A.|last48=Seymour|first48=Christopher W.|last49=Shieh|first49=Lisa|last50=Shukri|first50=Khalid A.|last51=Simpson|first51=Steven Q.|last52=Singer|first52=Mervyn|last53=Thompson|first53=B. Taylor|last54=Townsend|first54=Sean R.|last55=Van der Poll|first55=Thomas|last56=Vincent|first56=Jean-Louis|last57=Wiersinga|first57=W. Joost|last58=Zimmerman|first58=Janice L.|last59=Dellinger|first59=R. Phillip|title=Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock: 2016|journal=Intensive Care Medicine|volume=43|issue=3|year=2017|pages=304–377|issn=0342-4642|doi=10.1007/s00134-017-4683-6}}</ref>
*The American Thoracic Society/European Society of Intensive Care Medicine/Society of Critical Care Medicine Clinical Practice and Surviving Sepsis Campaign guidelines strongly recommend (moderate evidence) [[Mechanical ventilation initial ventilator settings#Proning|Prone positioning]] for more than 12 hours/day in patients with severe [[ARDS]].<ref name="FanDel Sorbo2017">{{cite journal|last1=Fan|first1=Eddy|last2=Del Sorbo|first2=Lorenzo|last3=Goligher|first3=Ewan C.|last4=Hodgson|first4=Carol L.|last5=Munshi|first5=Laveena|last6=Walkey|first6=Allan J.|last7=Adhikari|first7=Neill K. J.|last8=Amato|first8=Marcelo B. P.|last9=Branson|first9=Richard|last10=Brower|first10=Roy G.|last11=Ferguson|first11=Niall D.|last12=Gajic|first12=Ognjen|last13=Gattinoni|first13=Luciano|last14=Hess|first14=Dean|last15=Mancebo|first15=Jordi|last16=Meade|first16=Maureen O.|last17=McAuley|first17=Daniel F.|last18=Pesenti|first18=Antonio|last19=Ranieri|first19=V. Marco|last20=Rubenfeld|first20=Gordon D.|last21=Rubin|first21=Eileen|last22=Seckel|first22=Maureen|last23=Slutsky|first23=Arthur S.|last24=Talmor|first24=Daniel|last25=Thompson|first25=B. Taylor|last26=Wunsch|first26=Hannah|last27=Uleryk|first27=Elizabeth|last28=Brozek|first28=Jan|last29=Brochard|first29=Laurent J.|title=An Official American Thoracic Society/European Society of Intensive Care Medicine/Society of Critical Care Medicine Clinical Practice Guideline: Mechanical Ventilation in Adult Patients with Acute Respiratory Distress Syndrome|journal=American Journal of Respiratory and Critical Care Medicine|volume=195|issue=9|year=2017|pages=1253–1263|issn=1073-449X|doi=10.1164/rccm.201703-0548ST}}</ref><ref name="RhodesEvans2017">{{cite journal|last1=Rhodes|first1=Andrew|last2=Evans|first2=Laura E.|last3=Alhazzani|first3=Waleed|last4=Levy|first4=Mitchell M.|last5=Antonelli|first5=Massimo|last6=Ferrer|first6=Ricard|last7=Kumar|first7=Anand|last8=Sevransky|first8=Jonathan E.|last9=Sprung|first9=Charles L.|last10=Nunnally|first10=Mark E.|last11=Rochwerg|first11=Bram|last12=Rubenfeld|first12=Gordon D.|last13=Angus|first13=Derek C.|last14=Annane|first14=Djillali|last15=Beale|first15=Richard J.|last16=Bellinghan|first16=Geoffrey J.|last17=Bernard|first17=Gordon R.|last18=Chiche|first18=Jean-Daniel|last19=Coopersmith|first19=Craig|last20=De Backer|first20=Daniel P.|last21=French|first21=Craig J.|last22=Fujishima|first22=Seitaro|last23=Gerlach|first23=Herwig|last24=Hidalgo|first24=Jorge Luis|last25=Hollenberg|first25=Steven M.|last26=Jones|first26=Alan E.|last27=Karnad|first27=Dilip R.|last28=Kleinpell|first28=Ruth M.|last29=Koh|first29=Younsuk|last30=Lisboa|first30=Thiago Costa|last31=Machado|first31=Flavia R.|last32=Marini|first32=John J.|last33=Marshall|first33=John C.|last34=Mazuski|first34=John E.|last35=McIntyre|first35=Lauralyn A.|last36=McLean|first36=Anthony S.|last37=Mehta|first37=Sangeeta|last38=Moreno|first38=Rui P.|last39=Myburgh|first39=John|last40=Navalesi|first40=Paolo|last41=Nishida|first41=Osamu|last42=Osborn|first42=Tiffany M.|last43=Perner|first43=Anders|last44=Plunkett|first44=Colleen M.|last45=Ranieri|first45=Marco|last46=Schorr|first46=Christa A.|last47=Seckel|first47=Maureen A.|last48=Seymour|first48=Christopher W.|last49=Shieh|first49=Lisa|last50=Shukri|first50=Khalid A.|last51=Simpson|first51=Steven Q.|last52=Singer|first52=Mervyn|last53=Thompson|first53=B. Taylor|last54=Townsend|first54=Sean R.|last55=Van der Poll|first55=Thomas|last56=Vincent|first56=Jean-Louis|last57=Wiersinga|first57=W. Joost|last58=Zimmerman|first58=Janice L.|last59=Dellinger|first59=R. Phillip|title=Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock: 2016|journal=Intensive Care Medicine|volume=43|issue=3|year=2017|pages=304–377|issn=0342-4642|doi=10.1007/s00134-017-4683-6}}</ref>
 
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Revision as of 16:10, 18 July 2020

Mechanical ventilation



Ventilatory support

Supplemental Oxygen

  • Surviving Sepsis Campaign has the following recommendations regarding the use of supplemental oxygen in COVID-19 patients:[1]
    • It is strongly recommended (with moderate-quality evidence) to start the supplemental oxygen if the Spo2 is < 90% in adults. A weak recommendation states starting the supplemental oxygen at < 92% saturation.
    • In COVID-19 positive adult patients with acute hypoxemic respiratory failure on supplemental oxygen therapy, Spo2 should be maintained no higher than 96% (strong recommendation by Surviving Sepsis Campaign). This based upon the systematic review and meta-analysis of 25 RCTs that showed a linear association between the death risk and higher Spo2 targets.

High Flow Nasal Cannula (HFNC)

Mechanical Ventilation

Non-Invasive Positive Pressure Ventilation

Invasive mechanical ventilation

  • The vascular endothelial injury in COVID-19-associated acute respiratory distress syndrome (CARDS) and diverse mortality rates across the world in CARDS patients arbitrates the importance of different mechanical ventilation strategies.
  • The Chinese CDC reports the case-fatality rate to be higher than 50% in patients who received invasive mechanical ventilation.[3]
  • According to the American Society of Anesthesiology based upon the experience of Chinese anesthesiologists, timely (neither premature nor late) intubation and ventilation most effectual breathing assistance.[4]



Marini et al. suggest

    • Lower PEEP: “type L,” characterized by low lung elastance (high compliance), lower lung weight as estimated by CT scan, and a low response to PEEP
    • Higher PEEP: Initially it was recommended that the guidelines for ARDS must be followed for respiratory support in SARS Cov2 patients. But the data from China helped inform and reform regarding the strategies. In Wuhan, patients with acute hypoxemic respiratory failure due to COVID-19 have a poor tolerance to high PEEP, likely as the result of the direct and severe lung damage by the virus and inflammatory reactions.[5]
  • it may be best to avoid high-frequency oscillatory ventilation in patients with COVID-19 due to concerns of aerosol generation.19,37,38
  • Lower tidal volume ventilation (6 mL/kg predicted body weight) is associated with reduced mortality and a greater number of ventilator-free days[6]
  • PBW (men) = 50 + 2.3 (height in inches – 60)
  • PBW (women) = 45.5 + 2.3 (height in inches – 60)
  • Higher positive end-expiratory pressure (PEEP) combined with lower tidal volume ventilation is associated with decreased mortality in patients with moderate or severe ARDS (PaO2/FIO2 ≤ 200)[7]
  • Cisatracurium, when started within the first 48 hours of ARDS diagnosis and continued for 48 hours, has been associated with improved 90-day survival, a greater number of ventilator-free days, and a decreased incidence of volutrauma[8]

ARDS Network Mechanical Ventilation Protocol

Intubation

[5] _The widely used practice in Wuhan, after lung recruitment maneuvers, is to set PEEP at 20 cm H2O and titrate down in a decrement of 2 to 3 cm H2O each time until the goals of oxygenation, plateau pressure, and compliance are all achieved. The commonly used PEEP in this patient population is less than 10 cm H2O. -No mode of ventilation has been suggested to be superior to others.

Stratagies to improve oxygenation

Prone position ventilation

  • Prone positioning is thought to improve oxygenation by improving ventilation/perfusion (V/Q) mismatching via reduced shunting of blood through under-ventilated lung tissue.
  • Research has shown that prone position ventilation in ARDS patients with acute hypoxemic respiratory failure and spontaneous or assisted breathing reduces the mortality by 28 and 90-days.[9]
  • The strategy was widely used in COVID-19 patients in Wuhan, China.[5]
  • Prone position is an early strategy rather than a desperate rescue therapy.[10] A study by Lin Ding et al. suggests that the early application of prone ventilation with HFNC and NIV, especially in COVID-19 patients with moderate ARDS, can help avoid intubation.[11]
  • Prone position for awake patients during spontaneous or assisted breathing during NIV or HFNC with mild-moderate ARDS was associated with an improved oxygenation.[12] To answer the question about the effectiveness, two RCTs are in progress Template:NCT04347941 and Template:NCT04350723.[10] In addition, patients with an Spo2 of 95% or greater after an hour of the Prone position was associated with a lower rate of intubation. [13]
  • The American Thoracic Society/European Society of Intensive Care Medicine/Society of Critical Care Medicine Clinical Practice and Surviving Sepsis Campaign guidelines strongly recommend (moderate evidence) Prone positioning for more than 12 hours/day in patients with severe ARDS.[14][15]

{{#ev:youtube|https://www.youtube.com/watch?v=lcBPaHQUvXY}}


Lung recruitment maneauvers

References

  1. ↑ 1.0 1.1 1.2 Alhazzani, Waleed; Møller, Morten Hylander; Arabi, Yaseen M.; Loeb, Mark; Gong, Michelle Ng; Fan, Eddy; Oczkowski, Simon; Levy, Mitchell M.; Derde, Lennie; Dzierba, Amy; Du, Bin; Aboodi, Michael; Wunsch, Hannah; Cecconi, Maurizio; Koh, Younsuck; Chertow, Daniel S.; Maitland, Kathryn; Alshamsi, Fayez; Belley-Cote, Emilie; Greco, Massimiliano; Laundy, Matthew; Morgan, Jill S.; Kesecioglu, Jozef; McGeer, Allison; Mermel, Leonard; Mammen, Manoj J.; Alexander, Paul E.; Arrington, Amy; Centofanti, John E.; Citerio, Giuseppe; Baw, Bandar; Memish, Ziad A.; Hammond, Naomi; Hayden, Frederick G.; Evans, Laura; Rhodes, Andrew (2020). "Surviving Sepsis Campaign: Guidelines on the Management of Critically Ill Adults with Coronavirus Disease 2019 (COVID-19)". Critical Care Medicine. 48 (6): e440–e469. doi:10.1097/CCM.0000000000004363. ISSN 0090-3493.
  2. ↑ Frat, Jean-Pierre; Thille, Arnaud W.; Mercat, Alain; Girault, Christophe; Ragot, Stéphanie; Perbet, Sébastien; Prat, Gwénael; Boulain, Thierry; Morawiec, Elise; Cottereau, Alice; Devaquet, Jérôme; Nseir, Saad; Razazi, Keyvan; Mira, Jean-Paul; Argaud, Laurent; Chakarian, Jean-Charles; Ricard, Jean-Damien; Wittebole, Xavier; Chevalier, Stéphanie; Herbland, Alexandre; Fartoukh, Muriel; Constantin, Jean-Michel; Tonnelier, Jean-Marie; Pierrot, Marc; Mathonnet, Armelle; Béduneau, Gaëtan; Delétage-Métreau, Céline; Richard, Jean-Christophe M.; Brochard, Laurent; Robert, René (2015). "High-Flow Oxygen through Nasal Cannula in Acute Hypoxemic Respiratory Failure". New England Journal of Medicine. 372 (23): 2185–2196. doi:10.1056/NEJMoa1503326. ISSN 0028-4793.
  3. ↑ Wu, Zunyou; McGoogan, Jennifer M. (2020). "Characteristics of and Important Lessons From the Coronavirus Disease 2019 (COVID-19) Outbreak in China". JAMA. 323 (13): 1239. doi:10.1001/jama.2020.2648. ISSN 0098-7484.
  4. ↑ "Strategies for health care response to COVID-19 shared by Chinese anesthesiologists".
  5. ↑ 5.0 5.1 5.2 Meng, Lingzhong; Qiu, Haibo; Wan, Li; Ai, Yuhang; Xue, Zhanggang; Guo, Qulian; Deshpande, Ranjit; Zhang, Lina; Meng, Jie; Tong, Chuanyao; Liu, Hong; Xiong, Lize (2020). "Intubation and Ventilation amid the COVID-19 Outbreak". Anesthesiology. 132 (6): 1317–1332. doi:10.1097/ALN.0000000000003296. ISSN 0003-3022.
  6. ↑ "Ventilation with lower tidal volumes as compared with traditional tidal volumes for acute lung injury and the acute respiratory distress syndrome. The Acute Respiratory Distress Syndrome Network". N Engl J Med. 342 (18): 1301–8. 2000. doi:10.1056/NEJM200005043421801. PMID 10793162.
  7. ↑ Briel M, Meade M, Mercat A, Brower RG, Talmor D, Walter SD; et al. (2010). "Higher vs lower positive end-expiratory pressure in patients with acute lung injury and acute respiratory distress syndrome: systematic review and meta-analysis". JAMA. 303 (9): 865–73. doi:10.1001/jama.2010.218. PMID 20197533.
  8. ↑ Papazian L, Forel JM, Gacouin A, Penot-Ragon C, Perrin G, Loundou A; et al. (2010). "Neuromuscular blockers in early acute respiratory distress syndrome". N Engl J Med. 363 (12): 1107–16. doi:10.1056/NEJMoa1005372. PMID 20843245. Review in: Ann Intern Med. 2011 Jan 18;154(2):JC1-3
  9. ↑ Xie H, Zhou ZG, Jin W, Yuan CB, Du J, Lu J, Wang RL (2018). "Ventilator management for acute respiratory distress syndrome associated with avian influenza A (H7N9) virus infection: A case series". World J Emerg Med. 9 (2): 118–124. doi:10.5847/wjem.j.1920-8642.2018.02.006. PMC 5847497. PMID 29576824.
  10. ↑ 10.0 10.1 Telias, Irene; Katira, Bhushan H.; Brochard, Laurent (2020). "Is the Prone Position Helpful During Spontaneous Breathing in Patients With COVID-19?". JAMA. 323 (22): 2265. doi:10.1001/jama.2020.8539. ISSN 0098-7484.
  11. ↑ Ding L, Wang L, Ma W, He H (January 2020). "Efficacy and safety of early prone positioning combined with HFNC or NIV in moderate to severe ARDS: a multi-center prospective cohort study". Crit Care. 24 (1): 28. doi:10.1186/s13054-020-2738-5. PMC 6993481 Check |pmc= value (help). PMID 32000806 Check |pmid= value (help).
  12. ↑ Sartini, Chiara; Tresoldi, Moreno; Scarpellini, Paolo; Tettamanti, Andrea; Carcò, Francesco; Landoni, Giovanni; Zangrillo, Alberto (2020). "Respiratory Parameters in Patients With COVID-19 After Using Noninvasive Ventilation in the Prone Position Outside the Intensive Care Unit". JAMA. 323 (22): 2338. doi:10.1001/jama.2020.7861. ISSN 0098-7484.
  13. ↑ Thompson, Alison E.; Ranard, Benjamin L.; Wei, Ying; Jelic, Sanja (2020). "Prone Positioning in Awake, Nonintubated Patients With COVID-19 Hypoxemic Respiratory Failure". JAMA Internal Medicine. doi:10.1001/jamainternmed.2020.3030. ISSN 2168-6106.
  14. ↑ Fan, Eddy; Del Sorbo, Lorenzo; Goligher, Ewan C.; Hodgson, Carol L.; Munshi, Laveena; Walkey, Allan J.; Adhikari, Neill K. J.; Amato, Marcelo B. P.; Branson, Richard; Brower, Roy G.; Ferguson, Niall D.; Gajic, Ognjen; Gattinoni, Luciano; Hess, Dean; Mancebo, Jordi; Meade, Maureen O.; McAuley, Daniel F.; Pesenti, Antonio; Ranieri, V. Marco; Rubenfeld, Gordon D.; Rubin, Eileen; Seckel, Maureen; Slutsky, Arthur S.; Talmor, Daniel; Thompson, B. Taylor; Wunsch, Hannah; Uleryk, Elizabeth; Brozek, Jan; Brochard, Laurent J. (2017). "An Official American Thoracic Society/European Society of Intensive Care Medicine/Society of Critical Care Medicine Clinical Practice Guideline: Mechanical Ventilation in Adult Patients with Acute Respiratory Distress Syndrome". American Journal of Respiratory and Critical Care Medicine. 195 (9): 1253–1263. doi:10.1164/rccm.201703-0548ST. ISSN 1073-449X.
  15. ↑ Rhodes, Andrew; Evans, Laura E.; Alhazzani, Waleed; Levy, Mitchell M.; Antonelli, Massimo; Ferrer, Ricard; Kumar, Anand; Sevransky, Jonathan E.; Sprung, Charles L.; Nunnally, Mark E.; Rochwerg, Bram; Rubenfeld, Gordon D.; Angus, Derek C.; Annane, Djillali; Beale, Richard J.; Bellinghan, Geoffrey J.; Bernard, Gordon R.; Chiche, Jean-Daniel; Coopersmith, Craig; De Backer, Daniel P.; French, Craig J.; Fujishima, Seitaro; Gerlach, Herwig; Hidalgo, Jorge Luis; Hollenberg, Steven M.; Jones, Alan E.; Karnad, Dilip R.; Kleinpell, Ruth M.; Koh, Younsuk; Lisboa, Thiago Costa; Machado, Flavia R.; Marini, John J.; Marshall, John C.; Mazuski, John E.; McIntyre, Lauralyn A.; McLean, Anthony S.; Mehta, Sangeeta; Moreno, Rui P.; Myburgh, John; Navalesi, Paolo; Nishida, Osamu; Osborn, Tiffany M.; Perner, Anders; Plunkett, Colleen M.; Ranieri, Marco; Schorr, Christa A.; Seckel, Maureen A.; Seymour, Christopher W.; Shieh, Lisa; Shukri, Khalid A.; Simpson, Steven Q.; Singer, Mervyn; Thompson, B. Taylor; Townsend, Sean R.; Van der Poll, Thomas; Vincent, Jean-Louis; Wiersinga, W. Joost; Zimmerman, Janice L.; Dellinger, R. Phillip (2017). "Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock: 2016". Intensive Care Medicine. 43 (3): 304–377. doi:10.1007/s00134-017-4683-6. ISSN 0342-4642.

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