Rajesh Chand1, Yatin Mehta, Naresh Trehan. 1. Department of Anesthesiology and Critical Care, Escorts Heart Institute and Research Centre, New Delhi, India.
Abstract
OBJECTIVE: To compare cardiac output (CO), stroke volume (SV), and cardiac index (CI) as estimated with a new, noninvasive Doppler device (Ultrasonic Cardiac Output Monitor [USCOM]; USCOM Ltd, Sydney, Australia) with those measured with the bolus thermodilution (TD) technique. DESIGN: Prospective nonrandomized study. SETTING: Postcardiac surgery recovery unit of a tertiary cardiac center. PARTICIPANTS: Fifty patients after off-pump coronary artery bypass (OPCAB) surgery. MEASUREMENT AND MAIN RESULTS: Both right-sided and left-sided CO were estimated with a USCOM continuous-wave (CW) Doppler device, and CO was determined with the bolus TD technique performed in triplicate. On comparing the right-sided CO, SV, and CI with those of TD, the mean bias was 0.03 L/min, 1.6 mL, and 0.02 L/min/m(2), respectively. The comparison of left-sided CO, SV, and CI with those of TD revealed a means bias of 0.14 L/min, 1.0 mL, and 0.08 L/min/m(2), respectively. CONCLUSION: This study showed excellent agreement between the values for CO, SV, and CI as determined with USCOM and TD. Since there was only 1 time period for CO estimation in each patient with both methods, the stability of this correlation needs to be further investigated over time.
OBJECTIVE: To compare cardiac output (CO), stroke volume (SV), and cardiac index (CI) as estimated with a new, noninvasive Doppler device (Ultrasonic Cardiac Output Monitor [USCOM]; USCOM Ltd, Sydney, Australia) with those measured with the bolus thermodilution (TD) technique. DESIGN: Prospective nonrandomized study. SETTING: Postcardiac surgery recovery unit of a tertiary cardiac center. PARTICIPANTS: Fifty patients after off-pump coronary artery bypass (OPCAB) surgery. MEASUREMENT AND MAIN RESULTS: Both right-sided and left-sided CO were estimated with a USCOM continuous-wave (CW) Doppler device, and CO was determined with the bolus TD technique performed in triplicate. On comparing the right-sided CO, SV, and CI with those of TD, the mean bias was 0.03 L/min, 1.6 mL, and 0.02 L/min/m(2), respectively. The comparison of left-sided CO, SV, and CI with those of TD revealed a means bias of 0.14 L/min, 1.0 mL, and 0.08 L/min/m(2), respectively. CONCLUSION: This study showed excellent agreement between the values for CO, SV, and CI as determined with USCOM and TD. Since there was only 1 time period for CO estimation in each patient with both methods, the stability of this correlation needs to be further investigated over time.
Authors: Shaun D Gregory; Helena Cooney; Sara Diab; Chris Anstey; Ogilvie Thom; John F Fraser Journal: J Clin Monit Comput Date: 2015-03-07 Impact factor: 2.502
Authors: H Bryant Nguyen; Daryl P Banta; Gail Stewart; Tommy Kim; Ramesh Bansal; James Anholm; William A Wittlake; Stephen W Corbett Journal: J Clin Monit Comput Date: 2010-06-20 Impact factor: 2.502
Authors: Walter Knirsch; Oliver Kretschmar; Maren Tomaske; Kathrina Stutz; Nicole Nagdyman; Christian Balmer; Achim Schmitz; Dominique Béttex; Felix Berger; Urs Bauersfeld; Markus Weiss Journal: Intensive Care Med Date: 2008-02-23 Impact factor: 17.440
Authors: Fernando Beltramo; Jondavid Menteer; Asma Razavi; Robinder G Khemani; Jacqueline Szmuszkovicz; Christopher J L Newth; Patrick A Ross Journal: Pediatr Cardiol Date: 2015-09-12 Impact factor: 1.655