Aspiration and transtracheal jet ventilation with different pressures and depths of chest compression

OBJECTIVETo evaluate aspiration prophylaxis during cardiopulmonary resuscitation (CPR) using transtracheal jet ventilation (TJV) with different pressure-depths of chest compression and chest compression alone without mechanical ventilation. DESIGNProspective, animal study. SETTINGAnimal research lab...

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Veröffentlicht in:Critical care medicine 1999-01, Vol.27 (1), p.142-145
Hauptverfasser: Jawan, Bruno, Cheung, Hak Kim, Chong, Zu Kong, Fung, Si Tung, Lee, Ju Hao
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container_end_page 145
container_issue 1
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container_title Critical care medicine
container_volume 27
creator Jawan, Bruno
Cheung, Hak Kim
Chong, Zu Kong
Fung, Si Tung
Lee, Ju Hao
description OBJECTIVETo evaluate aspiration prophylaxis during cardiopulmonary resuscitation (CPR) using transtracheal jet ventilation (TJV) with different pressure-depths of chest compression and chest compression alone without mechanical ventilation. DESIGNProspective, animal study. SETTINGAnimal research laboratory, Chang Gung Memorial Hospital, Kaohsiung Medical Center, Taiwan. SUBJECTSMongrel dogs (n = 10) weighing 8 to 12 kg. INTERVENTIONSEight mongrel dogs were anesthetized, paralyzed, and ventilated transtracheally with a jet ventilator at frequencies varied from 600 to 10 cycles/min. The airway pressures below and above the jetting port were measured. The mouth of the dog was filled with barium and chest radiographs were taken 10 mins after chest compression with 20-pound pressure and 5-cm depth in group 1 and 10-pound pressure and 3-cm depth in group 2 at each different jet frequency. Two additional dogs underwent the same procedures but received only chest compression without TJV. MEASUREMENTS AND MAIN RESULTSPulmonary aspiration was not noted in the chest radiographs from either group. The airway pressure changes between groups were not significantly affected by difference in pressures and depths of chest compression at the same jetting frequency. However, pulmonary aspiration occurred in the two dogs that received chest compression alone without TJV. CONCLUSIONSApplication of TJV during chest compression with different pressures and depths caused no pulmonary aspiration in dogs at frequencies between 600 and 10 cycles/min. The protection against aspiration disappeared if the dogs received only chest compression without TJV. The mechanism of preventing pulmonary aspiration in TJV is thought to be due to forceful unidirectional gas outflow through the larynx and higher airway pressure in the carina than in the upper airway. The airway pressures were not affected by different chest compression pressures and depths because the larynx stayed open during TJV and the air outflow could freely move out without increasing the pressure in the airway. (Crit Care Med 1999; 27:142-145)
doi_str_mv 10.1097/00003246-199901000-00042
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DESIGNProspective, animal study. SETTINGAnimal research laboratory, Chang Gung Memorial Hospital, Kaohsiung Medical Center, Taiwan. SUBJECTSMongrel dogs (n = 10) weighing 8 to 12 kg. INTERVENTIONSEight mongrel dogs were anesthetized, paralyzed, and ventilated transtracheally with a jet ventilator at frequencies varied from 600 to 10 cycles/min. The airway pressures below and above the jetting port were measured. The mouth of the dog was filled with barium and chest radiographs were taken 10 mins after chest compression with 20-pound pressure and 5-cm depth in group 1 and 10-pound pressure and 3-cm depth in group 2 at each different jet frequency. Two additional dogs underwent the same procedures but received only chest compression without TJV. MEASUREMENTS AND MAIN RESULTSPulmonary aspiration was not noted in the chest radiographs from either group. The airway pressure changes between groups were not significantly affected by difference in pressures and depths of chest compression at the same jetting frequency. However, pulmonary aspiration occurred in the two dogs that received chest compression alone without TJV. CONCLUSIONSApplication of TJV during chest compression with different pressures and depths caused no pulmonary aspiration in dogs at frequencies between 600 and 10 cycles/min. The protection against aspiration disappeared if the dogs received only chest compression without TJV. The mechanism of preventing pulmonary aspiration in TJV is thought to be due to forceful unidirectional gas outflow through the larynx and higher airway pressure in the carina than in the upper airway. The airway pressures were not affected by different chest compression pressures and depths because the larynx stayed open during TJV and the air outflow could freely move out without increasing the pressure in the airway. (Crit Care Med 1999; 27:142-145)</description><identifier>ISSN: 0090-3493</identifier><identifier>EISSN: 1530-0293</identifier><identifier>DOI: 10.1097/00003246-199901000-00042</identifier><identifier>PMID: 9934908</identifier><identifier>CODEN: CCMDC7</identifier><language>eng</language><publisher>Hagerstown, MD: Lippincott Williams &amp; Wilkins, Inc</publisher><subject>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy ; Animals ; Biological and medical sciences ; Cardiopulmonary Resuscitation - adverse effects ; Cardiopulmonary Resuscitation - methods ; Critical Care - methods ; Dogs ; Emergency and intensive respiratory care ; High-Frequency Jet Ventilation - adverse effects ; High-Frequency Jet Ventilation - methods ; Intensive care medicine ; Medical sciences ; Pneumonia, Aspiration - diagnostic imaging ; Pneumonia, Aspiration - etiology ; Pneumonia, Aspiration - prevention &amp; control ; Prospective Studies ; Radiography ; Tracheotomy</subject><ispartof>Critical care medicine, 1999-01, Vol.27 (1), p.142-145</ispartof><rights>1999 Lippincott Williams &amp; Wilkins, Inc.</rights><rights>1999 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3842-3e14b6d0b82d7f1a7e786d77343444494adfed53bc143046efd971ab97e1071f3</citedby><cites>FETCH-LOGICAL-c3842-3e14b6d0b82d7f1a7e786d77343444494adfed53bc143046efd971ab97e1071f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4014,27914,27915,27916</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=1666691$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9934908$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Jawan, Bruno</creatorcontrib><creatorcontrib>Cheung, Hak Kim</creatorcontrib><creatorcontrib>Chong, Zu Kong</creatorcontrib><creatorcontrib>Fung, Si Tung</creatorcontrib><creatorcontrib>Lee, Ju Hao</creatorcontrib><title>Aspiration and transtracheal jet ventilation with different pressures and depths of chest compression</title><title>Critical care medicine</title><addtitle>Crit Care Med</addtitle><description>OBJECTIVETo evaluate aspiration prophylaxis during cardiopulmonary resuscitation (CPR) using transtracheal jet ventilation (TJV) with different pressure-depths of chest compression and chest compression alone without mechanical ventilation. DESIGNProspective, animal study. SETTINGAnimal research laboratory, Chang Gung Memorial Hospital, Kaohsiung Medical Center, Taiwan. SUBJECTSMongrel dogs (n = 10) weighing 8 to 12 kg. INTERVENTIONSEight mongrel dogs were anesthetized, paralyzed, and ventilated transtracheally with a jet ventilator at frequencies varied from 600 to 10 cycles/min. The airway pressures below and above the jetting port were measured. The mouth of the dog was filled with barium and chest radiographs were taken 10 mins after chest compression with 20-pound pressure and 5-cm depth in group 1 and 10-pound pressure and 3-cm depth in group 2 at each different jet frequency. Two additional dogs underwent the same procedures but received only chest compression without TJV. MEASUREMENTS AND MAIN RESULTSPulmonary aspiration was not noted in the chest radiographs from either group. The airway pressure changes between groups were not significantly affected by difference in pressures and depths of chest compression at the same jetting frequency. However, pulmonary aspiration occurred in the two dogs that received chest compression alone without TJV. CONCLUSIONSApplication of TJV during chest compression with different pressures and depths caused no pulmonary aspiration in dogs at frequencies between 600 and 10 cycles/min. The protection against aspiration disappeared if the dogs received only chest compression without TJV. The mechanism of preventing pulmonary aspiration in TJV is thought to be due to forceful unidirectional gas outflow through the larynx and higher airway pressure in the carina than in the upper airway. The airway pressures were not affected by different chest compression pressures and depths because the larynx stayed open during TJV and the air outflow could freely move out without increasing the pressure in the airway. (Crit Care Med 1999; 27:142-145)</description><subject>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Cardiopulmonary Resuscitation - adverse effects</subject><subject>Cardiopulmonary Resuscitation - methods</subject><subject>Critical Care - methods</subject><subject>Dogs</subject><subject>Emergency and intensive respiratory care</subject><subject>High-Frequency Jet Ventilation - adverse effects</subject><subject>High-Frequency Jet Ventilation - methods</subject><subject>Intensive care medicine</subject><subject>Medical sciences</subject><subject>Pneumonia, Aspiration - diagnostic imaging</subject><subject>Pneumonia, Aspiration - etiology</subject><subject>Pneumonia, Aspiration - prevention &amp; control</subject><subject>Prospective Studies</subject><subject>Radiography</subject><subject>Tracheotomy</subject><issn>0090-3493</issn><issn>1530-0293</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kU1PxCAQhonRrOvqTzDhYLxVobClHI3xKzHxomdCy5Dt2m0rUDf-e2c_1JOTMGSG9x3IAyGUsyvOtLpmGCKXRca11oxjleGS-QGZ8rnAItfikEwZ0ywTUotjchLjkjEu50pMyERr7LJySuAmDk2wqek7ajtHU7BdxFQvwLZ0CYl-QpeadqdYN2lBXeM9BOzSIUCMI6at1cGQFpH2nqI5Jlr3q60AjafkyNs2wtl-n5G3-7vX28fs-eXh6fbmOatFKfNMAJdV4VhV5k55bhWosnBKCSkkhpbWeXBzUdVcCiYL8E4rbiutgDPFvZiRy93cIfQfIz7CrJpYQ9vaDvoxmkLPi6JUEoXlTliHPsYA3gyhWdnwZTgzG8Lmh7D5JWy2hNF6vr9jrFbgfo17pHh-sT-3sbatR6B1E__mFxiao0zuZOu-TRDiezuuIZgN9rQw__2v-AYtb5RF</recordid><startdate>199901</startdate><enddate>199901</enddate><creator>Jawan, Bruno</creator><creator>Cheung, Hak Kim</creator><creator>Chong, Zu Kong</creator><creator>Fung, Si Tung</creator><creator>Lee, Ju Hao</creator><general>Lippincott Williams &amp; Wilkins, Inc</general><general>Lippincott</general><scope>IQODW</scope><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>7X8</scope></search><sort><creationdate>199901</creationdate><title>Aspiration and transtracheal jet ventilation with different pressures and depths of chest compression</title><author>Jawan, Bruno ; Cheung, Hak Kim ; Chong, Zu Kong ; Fung, Si Tung ; Lee, Ju Hao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3842-3e14b6d0b82d7f1a7e786d77343444494adfed53bc143046efd971ab97e1071f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><topic>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Cardiopulmonary Resuscitation - adverse effects</topic><topic>Cardiopulmonary Resuscitation - methods</topic><topic>Critical Care - methods</topic><topic>Dogs</topic><topic>Emergency and intensive respiratory care</topic><topic>High-Frequency Jet Ventilation - adverse effects</topic><topic>High-Frequency Jet Ventilation - methods</topic><topic>Intensive care medicine</topic><topic>Medical sciences</topic><topic>Pneumonia, Aspiration - diagnostic imaging</topic><topic>Pneumonia, Aspiration - etiology</topic><topic>Pneumonia, Aspiration - prevention &amp; control</topic><topic>Prospective Studies</topic><topic>Radiography</topic><topic>Tracheotomy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jawan, Bruno</creatorcontrib><creatorcontrib>Cheung, Hak Kim</creatorcontrib><creatorcontrib>Chong, Zu Kong</creatorcontrib><creatorcontrib>Fung, Si Tung</creatorcontrib><creatorcontrib>Lee, Ju Hao</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Critical care medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jawan, Bruno</au><au>Cheung, Hak Kim</au><au>Chong, Zu Kong</au><au>Fung, Si Tung</au><au>Lee, Ju Hao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Aspiration and transtracheal jet ventilation with different pressures and depths of chest compression</atitle><jtitle>Critical care medicine</jtitle><addtitle>Crit Care Med</addtitle><date>1999-01</date><risdate>1999</risdate><volume>27</volume><issue>1</issue><spage>142</spage><epage>145</epage><pages>142-145</pages><issn>0090-3493</issn><eissn>1530-0293</eissn><coden>CCMDC7</coden><abstract>OBJECTIVETo evaluate aspiration prophylaxis during cardiopulmonary resuscitation (CPR) using transtracheal jet ventilation (TJV) with different pressure-depths of chest compression and chest compression alone without mechanical ventilation. DESIGNProspective, animal study. SETTINGAnimal research laboratory, Chang Gung Memorial Hospital, Kaohsiung Medical Center, Taiwan. SUBJECTSMongrel dogs (n = 10) weighing 8 to 12 kg. INTERVENTIONSEight mongrel dogs were anesthetized, paralyzed, and ventilated transtracheally with a jet ventilator at frequencies varied from 600 to 10 cycles/min. The airway pressures below and above the jetting port were measured. The mouth of the dog was filled with barium and chest radiographs were taken 10 mins after chest compression with 20-pound pressure and 5-cm depth in group 1 and 10-pound pressure and 3-cm depth in group 2 at each different jet frequency. Two additional dogs underwent the same procedures but received only chest compression without TJV. MEASUREMENTS AND MAIN RESULTSPulmonary aspiration was not noted in the chest radiographs from either group. The airway pressure changes between groups were not significantly affected by difference in pressures and depths of chest compression at the same jetting frequency. However, pulmonary aspiration occurred in the two dogs that received chest compression alone without TJV. CONCLUSIONSApplication of TJV during chest compression with different pressures and depths caused no pulmonary aspiration in dogs at frequencies between 600 and 10 cycles/min. The protection against aspiration disappeared if the dogs received only chest compression without TJV. The mechanism of preventing pulmonary aspiration in TJV is thought to be due to forceful unidirectional gas outflow through the larynx and higher airway pressure in the carina than in the upper airway. The airway pressures were not affected by different chest compression pressures and depths because the larynx stayed open during TJV and the air outflow could freely move out without increasing the pressure in the airway. (Crit Care Med 1999; 27:142-145)</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams &amp; Wilkins, Inc</pub><pmid>9934908</pmid><doi>10.1097/00003246-199901000-00042</doi><tpages>4</tpages></addata></record>
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subjects Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Animals
Biological and medical sciences
Cardiopulmonary Resuscitation - adverse effects
Cardiopulmonary Resuscitation - methods
Critical Care - methods
Dogs
Emergency and intensive respiratory care
High-Frequency Jet Ventilation - adverse effects
High-Frequency Jet Ventilation - methods
Intensive care medicine
Medical sciences
Pneumonia, Aspiration - diagnostic imaging
Pneumonia, Aspiration - etiology
Pneumonia, Aspiration - prevention & control
Prospective Studies
Radiography
Tracheotomy
title Aspiration and transtracheal jet ventilation with different pressures and depths of chest compression
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