Iced vs room-temperature injectates for cardiac index measurement during hypothermia and normothermia
Few data are available on the accuracy of thermodilution measurements of cardiac index with room-temperature injectates and a closed delivery system in patients with low cardiac indexes and/or hypothermic body temperatures. To compare iced and room-temperature injectates for thermodilution measureme...
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| Veröffentlicht in: | American journal of critical care 2010-07, Vol.19 (4), p.365-372 |
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| creator | Walsh, Elissa Adams, Sheila Chernipeski, Janine Cloud, Jenny Gillies, Elizabeth Fox, Robert Luckeroth, Patti Rice, Marsha Salamanca, Cora Sherman, Betty Nezworski, Andrea Ash, Tracey |
| description | Few data are available on the accuracy of thermodilution measurements of cardiac index with room-temperature injectates and a closed delivery system in patients with low cardiac indexes and/or hypothermic body temperatures.
To compare iced and room-temperature injectates for thermodilution measurement of cardiac index in postoperative cardiac surgical patients during hypothermia and normothermia.
In a convenience sample of cardiac surgical patients in a cardiac recovery unit, cardiac index was measured with both room-temperature and iced injectates during hypothermia (< or =36.0 degrees C) and normothermia (> or =36.1 degrees C and < or =38.0 degrees C). Device bias and precision were calculated and graphed by using the Bland-Altman method. A Student t test was used to determine differences between cardiac indexes by injectate temperature.
A total of 38 patients were studied. Mean bias and precision for room-temperature and iced injectates in all patients were 0.11 (SD, 0.27) during hypothermia and -0.03 (SD, 0.21) during normothermia. In hypothermic patients, cardiac index differed significantly between room-temperature and iced injectates (t(1,37) = 2.41, P = .02). Cardiac index measurements did not differ between room-temperature and iced injectates in normothermic patients (P = .33).
Although significant differences in thermodilution cardiac index were found between room-temperature and iced injectates during hypothermic body temperatures, these differences were small (mean, |
| doi_str_mv | 10.4037/ajcc2009255 |
| format | Article |
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To compare iced and room-temperature injectates for thermodilution measurement of cardiac index in postoperative cardiac surgical patients during hypothermia and normothermia.
In a convenience sample of cardiac surgical patients in a cardiac recovery unit, cardiac index was measured with both room-temperature and iced injectates during hypothermia (< or =36.0 degrees C) and normothermia (> or =36.1 degrees C and < or =38.0 degrees C). Device bias and precision were calculated and graphed by using the Bland-Altman method. A Student t test was used to determine differences between cardiac indexes by injectate temperature.
A total of 38 patients were studied. Mean bias and precision for room-temperature and iced injectates in all patients were 0.11 (SD, 0.27) during hypothermia and -0.03 (SD, 0.21) during normothermia. In hypothermic patients, cardiac index differed significantly between room-temperature and iced injectates (t(1,37) = 2.41, P = .02). Cardiac index measurements did not differ between room-temperature and iced injectates in normothermic patients (P = .33).
Although significant differences in thermodilution cardiac index were found between room-temperature and iced injectates during hypothermic body temperatures, these differences were small (mean, <0.11). These findings add to the results of the few studies on accuracy of room-temperature injectates for thermodilution measurement of cardiac index.</description><identifier>ISSN: 1062-3264</identifier><identifier>EISSN: 1937-710X</identifier><identifier>DOI: 10.4037/ajcc2009255</identifier><identifier>PMID: 19687516</identifier><language>eng</language><publisher>United States</publisher><subject>Adult ; Aged ; Aged, 80 and over ; Cardiac Output ; Cardiac Surgical Procedures ; Cold Temperature ; Female ; Humans ; Hypothermia, Induced - methods ; Male ; Middle Aged ; Nursing ; Postoperative Care - methods ; Thermodilution - methods</subject><ispartof>American journal of critical care, 2010-07, Vol.19 (4), p.365-372</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c325t-1109f0a71bd3554e8008d2e8212fe6f93a6b0291bbf28ab8399c0996b3ff87ca3</citedby><cites>FETCH-LOGICAL-c325t-1109f0a71bd3554e8008d2e8212fe6f93a6b0291bbf28ab8399c0996b3ff87ca3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19687516$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Walsh, Elissa</creatorcontrib><creatorcontrib>Adams, Sheila</creatorcontrib><creatorcontrib>Chernipeski, Janine</creatorcontrib><creatorcontrib>Cloud, Jenny</creatorcontrib><creatorcontrib>Gillies, Elizabeth</creatorcontrib><creatorcontrib>Fox, Robert</creatorcontrib><creatorcontrib>Luckeroth, Patti</creatorcontrib><creatorcontrib>Rice, Marsha</creatorcontrib><creatorcontrib>Salamanca, Cora</creatorcontrib><creatorcontrib>Sherman, Betty</creatorcontrib><creatorcontrib>Nezworski, Andrea</creatorcontrib><creatorcontrib>Ash, Tracey</creatorcontrib><title>Iced vs room-temperature injectates for cardiac index measurement during hypothermia and normothermia</title><title>American journal of critical care</title><addtitle>Am J Crit Care</addtitle><description>Few data are available on the accuracy of thermodilution measurements of cardiac index with room-temperature injectates and a closed delivery system in patients with low cardiac indexes and/or hypothermic body temperatures.
To compare iced and room-temperature injectates for thermodilution measurement of cardiac index in postoperative cardiac surgical patients during hypothermia and normothermia.
In a convenience sample of cardiac surgical patients in a cardiac recovery unit, cardiac index was measured with both room-temperature and iced injectates during hypothermia (< or =36.0 degrees C) and normothermia (> or =36.1 degrees C and < or =38.0 degrees C). Device bias and precision were calculated and graphed by using the Bland-Altman method. A Student t test was used to determine differences between cardiac indexes by injectate temperature.
A total of 38 patients were studied. Mean bias and precision for room-temperature and iced injectates in all patients were 0.11 (SD, 0.27) during hypothermia and -0.03 (SD, 0.21) during normothermia. In hypothermic patients, cardiac index differed significantly between room-temperature and iced injectates (t(1,37) = 2.41, P = .02). Cardiac index measurements did not differ between room-temperature and iced injectates in normothermic patients (P = .33).
Although significant differences in thermodilution cardiac index were found between room-temperature and iced injectates during hypothermic body temperatures, these differences were small (mean, <0.11). These findings add to the results of the few studies on accuracy of room-temperature injectates for thermodilution measurement of cardiac index.</description><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Cardiac Output</subject><subject>Cardiac Surgical Procedures</subject><subject>Cold Temperature</subject><subject>Female</subject><subject>Humans</subject><subject>Hypothermia, Induced - methods</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Nursing</subject><subject>Postoperative Care - methods</subject><subject>Thermodilution - methods</subject><issn>1062-3264</issn><issn>1937-710X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpNkEtLAzEYRYMotlZX7iU7FzKax0weSym-oOBGwd2QSb7YKc2kJjNi_70jrejqXi6HuzgInVNyXRIub8zKWkaIZlV1gKZUc1lISt4Ox04EKzgT5QSd5LwihJZKymM0oVooWVExRfBkweHPjFOMoeghbCCZfkiA224Ftjc9ZOxjwtYk1xo7zg6-cACTRyhA12M3pLZ7x8vtJvZLSKE12HQOdzGF3-EUHXmzznC2zxl6vb97mT8Wi-eHp_ntorCcVX1BKdGeGEkbx6uqBEWIcgwUo8yD8Job0RCmadN4pkyjuNaWaC0a7r2S1vAZutz9blL8GCD3dWizhfXadBCHXEvOBZPl6GiGrnakTTHnBL7epDaYtK0pqX-01v-0jvTF_ndoArg_du-RfwNBBHUa</recordid><startdate>201007</startdate><enddate>201007</enddate><creator>Walsh, Elissa</creator><creator>Adams, Sheila</creator><creator>Chernipeski, Janine</creator><creator>Cloud, Jenny</creator><creator>Gillies, Elizabeth</creator><creator>Fox, Robert</creator><creator>Luckeroth, Patti</creator><creator>Rice, Marsha</creator><creator>Salamanca, Cora</creator><creator>Sherman, Betty</creator><creator>Nezworski, Andrea</creator><creator>Ash, Tracey</creator><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>201007</creationdate><title>Iced vs room-temperature injectates for cardiac index measurement during hypothermia and normothermia</title><author>Walsh, Elissa ; Adams, Sheila ; Chernipeski, Janine ; Cloud, Jenny ; Gillies, Elizabeth ; Fox, Robert ; Luckeroth, Patti ; Rice, Marsha ; Salamanca, Cora ; Sherman, Betty ; Nezworski, Andrea ; Ash, Tracey</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c325t-1109f0a71bd3554e8008d2e8212fe6f93a6b0291bbf28ab8399c0996b3ff87ca3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Cardiac Output</topic><topic>Cardiac Surgical Procedures</topic><topic>Cold Temperature</topic><topic>Female</topic><topic>Humans</topic><topic>Hypothermia, Induced - methods</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Nursing</topic><topic>Postoperative Care - methods</topic><topic>Thermodilution - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Walsh, Elissa</creatorcontrib><creatorcontrib>Adams, Sheila</creatorcontrib><creatorcontrib>Chernipeski, Janine</creatorcontrib><creatorcontrib>Cloud, Jenny</creatorcontrib><creatorcontrib>Gillies, Elizabeth</creatorcontrib><creatorcontrib>Fox, Robert</creatorcontrib><creatorcontrib>Luckeroth, Patti</creatorcontrib><creatorcontrib>Rice, Marsha</creatorcontrib><creatorcontrib>Salamanca, Cora</creatorcontrib><creatorcontrib>Sherman, Betty</creatorcontrib><creatorcontrib>Nezworski, Andrea</creatorcontrib><creatorcontrib>Ash, Tracey</creatorcontrib><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>American journal of critical care</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Walsh, Elissa</au><au>Adams, Sheila</au><au>Chernipeski, Janine</au><au>Cloud, Jenny</au><au>Gillies, Elizabeth</au><au>Fox, Robert</au><au>Luckeroth, Patti</au><au>Rice, Marsha</au><au>Salamanca, Cora</au><au>Sherman, Betty</au><au>Nezworski, Andrea</au><au>Ash, Tracey</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Iced vs room-temperature injectates for cardiac index measurement during hypothermia and normothermia</atitle><jtitle>American journal of critical care</jtitle><addtitle>Am J Crit Care</addtitle><date>2010-07</date><risdate>2010</risdate><volume>19</volume><issue>4</issue><spage>365</spage><epage>372</epage><pages>365-372</pages><issn>1062-3264</issn><eissn>1937-710X</eissn><abstract>Few data are available on the accuracy of thermodilution measurements of cardiac index with room-temperature injectates and a closed delivery system in patients with low cardiac indexes and/or hypothermic body temperatures.
To compare iced and room-temperature injectates for thermodilution measurement of cardiac index in postoperative cardiac surgical patients during hypothermia and normothermia.
In a convenience sample of cardiac surgical patients in a cardiac recovery unit, cardiac index was measured with both room-temperature and iced injectates during hypothermia (< or =36.0 degrees C) and normothermia (> or =36.1 degrees C and < or =38.0 degrees C). Device bias and precision were calculated and graphed by using the Bland-Altman method. A Student t test was used to determine differences between cardiac indexes by injectate temperature.
A total of 38 patients were studied. Mean bias and precision for room-temperature and iced injectates in all patients were 0.11 (SD, 0.27) during hypothermia and -0.03 (SD, 0.21) during normothermia. In hypothermic patients, cardiac index differed significantly between room-temperature and iced injectates (t(1,37) = 2.41, P = .02). Cardiac index measurements did not differ between room-temperature and iced injectates in normothermic patients (P = .33).
Although significant differences in thermodilution cardiac index were found between room-temperature and iced injectates during hypothermic body temperatures, these differences were small (mean, <0.11). These findings add to the results of the few studies on accuracy of room-temperature injectates for thermodilution measurement of cardiac index.</abstract><cop>United States</cop><pmid>19687516</pmid><doi>10.4037/ajcc2009255</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adult Aged Aged, 80 and over Cardiac Output Cardiac Surgical Procedures Cold Temperature Female Humans Hypothermia, Induced - methods Male Middle Aged Nursing Postoperative Care - methods Thermodilution - methods |
| title | Iced vs room-temperature injectates for cardiac index measurement during hypothermia and normothermia |
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