| Evaluation of a commercial ultrasonographic hemodynamic recording system for the measurement of cardiac output in dogs. | |
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MedLine Citation:
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PMID: 19566471 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To evaluate the accuracy of a commercial ultrasonographic cardiac output (CO) monitoring system (UCOMS) in anesthetized Beagles as assessed by comparison with thermodilution CO (TDCO). ANIMALS: 8 healthy anesthetized Beagles. PROCEDURES: Simultaneous UCOMS and TDCO measurements of CO were obtained during 4 hemodynamic states: baseline anesthesia (0.5% to 1.5% isoflurane), a higher depth of anesthesia (2% to 3.5% isoflurane) to yield a >or= 15% reduction in systolic arterial blood pressure, IV infusion of colloidal solution to a mean right atrial pressure of >or= 15 mm Hg, and IV infusion of dobutamine at 5 microg/kg/min. Measurements were obtained at 2 probe positions: the subxiphoid region and the right thoracic inlet. Correlation and agreement of results between methods were determined via linear regression analysis and Bland-Altman plots. RESULTS: A significant positive correlation was detected between UCOMS andTDCO measurements obtained at the subxiphoid (R = 0.86) and thoracic inlet (R = 0.83) positions. Bland-Altman plots revealed minimal bias between methods (bias +/- SD, -0.03 +/- 0.73 L/min and -0.20 +/- 0.80 L/min for subxiphoid and thoracic inlet measurements, respectively). However, the percentage error associated with UCOMS measurements made at the 2 positions was > 45%. CONCLUSIONS AND CLINICAL RELEVANCE: When compared with the results of TDCO, CO measured with the UCOMS exceeded commonly accepted limits of error in healthy dogs. The UCOMS was, however, able to track changes in CO across hemodynamic states. Additional research is needed to assess the usefulness of the UCOMS for monitoring CO in critically ill dogs. |
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Authors:
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Brian A Scansen; John D Bonagura; Karsten E Schober; William W Muir |
Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: American journal of veterinary research Volume: 70 ISSN: 0002-9645 ISO Abbreviation: Am. J. Vet. Res. Publication Date: 2009 Jul |
Date Detail:
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Created Date: 2009-07-01 Completed Date: 2009-08-18 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0375011 Medline TA: Am J Vet Res Country: United States |
Other Details:
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Languages: eng Pagination: 862-8 Citation Subset: IM |
Affiliation:
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Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cardiac Output / physiology* Dogs / physiology* Female Male Ultrasonography / instrumentation, veterinary* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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