Document Detail

Comparison of the USCOM ultrasound cardiac output monitor with pulmonary artery catheter thermodilution in patients undergoing liver transplantation.
MedLine Citation:
PMID:  18581504     Owner:  NLM     Status:  MEDLINE    
The aim of the study was to compare the standard technique of cardiac output determination by pulmonary artery catheter thermodilution (PAC-TD) with a noninvasive ultrasound Doppler monitor (USCOM Pty., Ltd., Coffs Harbour, Australia) in surgery for liver transplantation. We wished to determine if the degree of accuracy would allow the ultrasound cardiac output monitor (USCOM) to be used as an alternative monitor in a clinical setting in which wide fluctuations in cardiac output could be expected. This was a prospective method comparison study, with 71 paired measurements obtained in 12 patients undergoing liver transplantation in a university teaching hospital. Bland-Altman analysis of the 2 techniques showed a bias of 0.39 L/minute, with the USCOM cardiac output lower compared with that of PAC-TD. The bias was small and did not vary with the magnitude of the cardiac output. The 95% limits of agreement were -1.47 and 2.25 L/minute. There was good repeatability for USCOM measurements, with a repeatability coefficient of 0.43 for USCOM versus 0.77 for PAC-TD. We conclude that USCOM is acceptable for the clinical determination of noninvasive cardiac output, particularly in situations in which tracking changes over time is more important than knowing the precise value. However, the utility of USCOM is limited by its inability to measure pulmonary artery pressure.
Lai-Sze Grace Wong; Boon-Hun Yong; Karl Kang Young; Lee-Sung Lau; King-Lik Cheng; Jeff Siu-Fan Man; Michael G Irwin
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article    
Journal Detail:
Title:  Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society     Volume:  14     ISSN:  1527-6473     ISO Abbreviation:  Liver Transpl.     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-07-10     Completed Date:  2008-09-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100909185     Medline TA:  Liver Transpl     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1038-43     Citation Subset:  IM    
Department of Anaesthesiology, Queen Mary Hospital, Hong Kong.
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MeSH Terms
Aorta / ultrasonography*
Cardiac Output*
Catheterization, Swan-Ganz
Liver Transplantation*
Middle Aged
Monitoring, Intraoperative / instrumentation*
Prospective Studies
Comment In:
Liver Transpl. 2008 Jul;14(7):917-8   [PMID:  18581507 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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