| Accuracy of a novel approach to measuring arterial thermodilution cardiac output during intra-aortic counterpulsation. | |
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MedLine Citation:
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PMID: 17370126 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To assess the agreement between a novel approach of arterial and the pulmonary artery bolus thermodilution for measuring cardiac output in critically ill patients during aortic counterpulsation. METHODS: Eighteen male patients aged 37-80 years, undergoing preoperative insertion of an intra-aortic balloon pump (IABP) and elective coronary artery bypass grafting. A thin 1.3FG thermistor was introduced through the pressure lumen to the tip of an 8FG IABP catheter, and the pump rate was set at 1:1. After arrival in the intensive care unit cardiac output (CO) was measured under haemodynamic steady-state conditions hourly for 8-11 h, and arterial bolus thermodilution (BCO(iabp)) and pulmonary artery bolus thermodilution (BCO(pulm)) were determined after the patients' admission to the intensive care unit. RESULTS: A total of 198 data pairs were obtained: 177 with aortic counterpulsation and 21 without. During aortic counterpulsation, median CO was 6.8 l/min for BCO(iabp) and 6.1 l/min for BCO(pulm), without aortic counterpulsation; corresponding values were 7.1 l/min for BCO(iabp) and 6.5 l/min for BCO(pulm) with aortic counterpulsation. Mean bias was +0.77 l/min, limits of agreement ( +/- 2 SD) were -1.27/+2.81 l/min, and mean error (2 SD/[(BCO(iabp )+ BCO(pulm))/2] was 31.4%. Without aortic counterpulsation, corresponding values were +0.43 l/min, -1.03/+1.87 l/min, and 22.4%. CONCLUSIONS: Agreement between BCO(iabp) and BCO(pulm) was satisfactory for CO values between 2.0 and 10 l/min only without aortic counterpulsation. BCO(iabp) CO measurements during aortic counterpulsation after coronary artery bypass grafting cannot be recommended at the present time. |
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Authors:
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Werner Baulig; Philipp Schuett; Oliver Goedje; Edith R Schmid |
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Publication Detail:
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Type: Journal Article Date: 2007-03-17 |
Journal Detail:
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Title: Journal of clinical monitoring and computing Volume: 21 ISSN: 1387-1307 ISO Abbreviation: J Clin Monit Comput Publication Date: 2007 Jun |
Date Detail:
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Created Date: 2007-06-01 Completed Date: 2007-08-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9806357 Medline TA: J Clin Monit Comput Country: Netherlands |
Other Details:
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Languages: eng Pagination: 147-53 Citation Subset: IM |
Affiliation:
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Division of Cardiac Anaesthesia, Institute of Anaesthesiology, University Hospital of Zurich, Raemistrasse 100, Zurich, 8091, Switzerland. werner.baulig@usz.ch |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Aorta / pathology* Carbon Dioxide / chemistry Cardiac Output* Counterpulsation* Humans Intensive Care Units Male Middle Aged Monitoring, Physiologic / methods* Reproducibility of Results Temperature Thermodilution / instrumentation, methods* |
| Chemical | |
Reg. No./Substance:
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124-38-9/Carbon Dioxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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