| Evaluation of a new semi-continuous cardiac output system in the intensive care unit. | |
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MedLine Citation:
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PMID: 9669016 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: A new semi-continuous thermodilution cardiac output (CCO) system has been developed recently (Opti-Q and Q-vue Abbott critical care system). The aim of this study was to compare the accuracy and reproducibility of this new device with conventional ice-bolus thermodilution cardiac output (BCO). METHODS: Fifteen critically ill patients who needed pulmonary artery catheterization were prospectively investigated. Eighty seven paired data using BCO and CCO methods were compared. Reproducibility was assessed from 90 BCO and 87 CCO determinations by calculation of the mean standard error (SEM) and according to Bland and Altman methodology. RESULTS: The BCO and CCO ranged from 2.46 to 11.20 L.min-1 and from 1.75 to 10.05 L.min-1 respectively. Bias (mean difference between BCO and CCO) was null (0.002 L.min-1, P = 0.98), precision (SD of the bias) was 0.74 L.min-1 and the limits of agreement (mean difference +/- 1.96 SD) ranged from -1.45 to 1.45 L.min-1. The threshold to consider two cardiac outputs as different (3 x SEM) was equivalent for BCO and CCO (0.54 and 0.465 L.min-1 respectively). According to the Bland and Altman method, reproducibility of CCO was greater than that of BCO; bias of repeated measurements of BCO and CCO were 0.15 L.min-1 (P < 0.05) and 0.047 L.min-1 (NS), respectively. CONCLUSION: Compared with BCO, this new device was accurate but cannot be considered as interchangeable regarding the limits of agreement. Reproducibility of CCO was superior to BCO. |
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Authors:
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P Seguin; O Colcanap; A Le Rouzo; M Tanguy; Y M Guillou; Y Mallédant |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Canadian journal of anaesthesia = Journal canadien d'anesthésie Volume: 45 ISSN: 0832-610X ISO Abbreviation: Can J Anaesth Publication Date: 1998 Jun |
Date Detail:
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Created Date: 1998-10-01 Completed Date: 1998-10-01 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8701709 Medline TA: Can J Anaesth Country: CANADA |
Other Details:
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Languages: eng Pagination: 578-83 Citation Subset: IM |
Affiliation:
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Service d'Anesthesiologie-Réanimation Chirurgicale 1, CHR-U de Pontchaillou, Rennes, France. yMalledant.rennes@invivo.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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APACHE Aged Bias (Epidemiology) Cardiac Output / physiology* Catheterization, Swan-Ganz / instrumentation* Critical Illness Equipment Design Evaluation Studies as Topic Humans Ice Intensive Care* Monitoring, Physiologic / instrumentation* Prospective Studies Reproducibility of Results Respiratory Distress Syndrome, Adult / physiopathology Shock / physiopathology Shock, Cardiogenic / physiopathology Shock, Septic / physiopathology Thermodilution / instrumentation* |
| Chemical | |
Reg. No./Substance:
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0/Ice |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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