| Cardiac output measurement by pulse dye densitometry in cardiac surgery. | |
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MedLine Citation:
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PMID: 16179040 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Summary The aim of this study was to compare the accuracy of pulse dye densitometry with that of bolus thermodilution cardiac output measurement in patients before and after elective coronary artery bypass grafting. Twenty-eight patients were studied. Agreement between mean thermodilution and pulse dye densitometry cardiac output values was assessed by Bland-Altman analysis. Preoperative median [range] cardiac output was 3.87 [2.37-6.0] l.min(-1) by thermodilution, and 3.11 [1.7-5.45] l.min(-1) by pulse dye densitometry using indocyanine green 5 mg. Pulse dye densitometry underestimated cardiac output (mean bias - 0.42 l.min(-1)); the limits of agreement were +/- 1.91 l.min(-1), and mean error was 50.3%, indicating low precision. Preoperative median [range] cardiac output was 3.85 [2.2-6.0] l.min(-1) for bolus thermodilution cardiac output and 4.2 [2.0-7.2] l.min(-1) for pulse dye densitometry using indocyanine green 20 mg. Mean bias was + 0.566 l.min(-1), the limits of agreement were +/- 2.51 l.min(-1) and mean error was 60.9%. Postoperative cardiac output data were not analysed because pulse dye densitometry signals were low or absent in > 50% of the patients. We conclude that pulse dye densitometry using indocyanine green 5 mg or 20 mg is inaccurate in anaesthetised patients before coronary artery bypass surgery and cannot be used after surgery because of a high incidence of low pulse dye densitometry signal amplitudes. |
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Authors:
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W Baulig; E O Bernhard; D Bettex; D Schmidlin; E R Schmid |
Publication Detail:
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Type: Comparative Study; Journal Article; Validation Studies |
Journal Detail:
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Title: Anaesthesia Volume: 60 ISSN: 0003-2409 ISO Abbreviation: Anaesthesia Publication Date: 2005 Oct |
Date Detail:
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Created Date: 2005-09-23 Completed Date: 2005-10-17 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370524 Medline TA: Anaesthesia Country: England |
Other Details:
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Languages: eng Pagination: 968-73 Citation Subset: AIM; IM |
Affiliation:
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Division of Cardiovascular Anaesthesia, University Hospital of Zürich, Rämistrasse 100, 8091 Zürich, Switzerland. werner.Baulig@usz.ch |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aged Aged, 80 and over Anthropometry Cardiac Output* Contrast Media Coronary Artery Bypass* Densitometry Female Humans Indocyanine Green / diagnostic use Male Middle Aged Perioperative Care / methods Reproducibility of Results Thermodilution |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 3599-32-4/Indocyanine Green |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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