An Observational Comparative Study of Cardiac Index Estimated By FloTrac and Intermittent Thermo Dilution in Off-Pump Coronary Artery Bypass GraftingManender Kumar Singla1*, Kanwalpreet Sodhi2, Anupam Shrivastava3, Kishore C Mukherjee4, Sonia Saini1 and Manpreet Singh Salooja4
- Corresponding Author:
- Dr. Manender Kumar Singla
Department of Cardiac Anesthesia
SPS Apollo Hospital, Ludhiana, India
E-mail: [email protected]
Received date: May 07, 2015; Accepted date: July 15, 2015; Published date: July 22, 2015
Citation:Singla MK, Sodhi K, Shrivastava A, Mukherjee KC, Saini S, et al. (2015) An Observational Comparative Study of Cardiac Index Estimated By FloTrac and Intermittent Thermo Dilution in Off-Pump Coronary Artery Bypass Grafting. Primary Health Care 5:198. doi:10.4172/2167-1079.1000198
Copyright: © 2015 Singla MK, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Objective: The purpose of this study was to determine the correlation between cardiac index (CI) measurements made using intermittent thermodilution (ITD) technique by pulmonary artery catheter (PAC) and arterial pulse-contour analysis by FloTrac. Design: Prospective observational study. Setting: Cardiac surgery unit in a 350 bedded tertiary care hospital in India. Participants: 31 adult patients undergoing elective off-pump coronary artery bypass grafting (OPCABG) Interventions: CI measurements performed by the two different methods at six time points during the surgery (before skin incision, during grafting of left anterior descending artery, obtuse marginal artery and right coronary/ posterior descending artery, after protamine administration and after shifting the patient to recovery room). Measurements and results: The techniques a weak correlation at all six time points during the OPCABG. The mean bias of 0.85 L/min/m2 and precision of 0.55 was found in the study population. The percentage error calculated using Critchley s criteria was found to be 46%. Conclusion: CI measurements obtained using FloTrac showed a limited correlation with those acquired by ITD technique at different stages of OPCABG. Further studies are required in other patient populations and clinical situations.