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 Cardiac output estimation after off-pump coronary artery bypass: A comparison of two different techniques

Dheeraj Arora, Rajesh Chand, Yatin Mehta, Naresh Trehan
Department Anaesthesiology and Critical Care, Escorts Heart Institute and Research Centre, New Delhi., India

Correspondence Address:
Yatin Mehta
Department of Anaesthesiology and Critical Care, Escorts Heart Institute and Research Centre, Okhla Road, New Delhi - 110025.
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.37939

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Year : 2007  |  Volume : 10  |  Issue : 2  |  Page : 132-136

 
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The present study compares the cardiac output (CO) estimated by a new, non-invsive continuous Doppler device (Ultrasonic cardiac output monitor-USCOM) with that by bolus thermodilution technique (TD). Thirty post off-pump coronary artery bypass graft surgery patients were studied in this prospective non­randomozed study. Right heart CO estimation by USCOM and TD was performed and measured in quadruplet. A total of 120 paired observations were made. The mean CO was 4.63 and 4.76 L/min as estimated by TD and USCOM respectively. For TD and USCOM, the CO had a mean bias (tendency of one technique to differ from other) of -0.13 L/min and limits of agreement (mean bias±2SD) at -0.86 and 0.59 L/min. The study reveals very good agreement between the values of CO estimated by USCOM and TD.






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  © Annals of Cardiac Anaesthesia | Published by Wolters Kluwer - Medknow
 Online since 5th January, 2008

 

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Dheeraj Arora, Rajesh Chand, Yatin Mehta, Naresh Trehan
Department Anaesthesiology and Critical Care, Escorts Heart Institute and Research Centre, New Delhi., India

Correspondence Address:
Yatin Mehta
Department of Anaesthesiology and Critical Care, Escorts Heart Institute and Research Centre, Okhla Road, New Delhi - 110025.
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-9784.37939

Rights and Permissions

The present study compares the cardiac output (CO) estimated by a new, non-invsive continuous Doppler device (Ultrasonic cardiac output monitor-USCOM) with that by bolus thermodilution technique (TD). Thirty post off-pump coronary artery bypass graft surgery patients were studied in this prospective non­randomozed study. Right heart CO estimation by USCOM and TD was performed and measured in quadruplet. A total of 120 paired observations were made. The mean CO was 4.63 and 4.76 L/min as estimated by TD and USCOM respectively. For TD and USCOM, the CO had a mean bias (tendency of one technique to differ from other) of -0.13 L/min and limits of agreement (mean bias±2SD) at -0.86 and 0.59 L/min. The study reveals very good agreement between the values of CO estimated by USCOM and TD.






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  © Annals of Cardiac Anaesthesia | Published by Wolters Kluwer - Medknow
 Online since 5th January, 2008