• J Clin Monit Comput · Jun 2009

    Comparative Study Clinical Trial

    Cardiac index value measurement by invasive, semi-invasive and non invasive techniques: a prospective study in postoperative off pump coronary artery bypass surgery patients.

    • Murali Chakravarthy, Subramanyam Rajeev, and Vivek Jawali.
    • Wockhardt Heart Institute, Bangalore, Karnataka, India. mailchakravarthy@gmail.com
    • J Clin Monit Comput. 2009 Jun 1;23(3):175-80.

    AbstractThe authors prospectively compared three techniques of continuous cardiac index measurements. They were, invasive Continuous Cardiac Index using thermodilution flow-directed Swan-Ganz pulmonary artery catheters, semi invasive Flotrac-arterial pressure derived cardiac index and the non invasive cardiac index measurement-body impedance plethsmography. The cardiac index measurements were made simultaneously in the postoperative period in 20 patients who underwent elective uncomplicated off pump coronary artery bypass graft. The values were collected once in 5 min over a period of 30-40 min. A set of 140 values were obtained from the cohorts in our study. Inter-changeability of the values of cardiac index was analysed using Bland-Altman and mountain plots. The cardiac index values ranged from 1.6 to 3.6 l/min/m(2). The values obtained were interchangeable. The bias and precision respectively were 0.02 and +/-0.06 for continuous cardiac index and Flotrac, 0.18 and +/-0.08 for Flotrac and body impedance plethysmography and 0.16 and +/-0.08 for continuous cardiac index and body impedance plethysmography. Flotrac appears to be more useful during off pump coronary artery bypass surgery.

      Pubmed     Full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        

    hide…

What will the 'Medical Journal of You' look like?

Start your free 21 day trial now.

We guarantee your privacy. Your email address will not be shared.