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Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Critical Care giúp cho các bạn có thêm kiến thức về ngành y học đề tài: Cross-comparison of cardiac output trending accuracy of LiDCO, PiCCO, FloTrac and pulmonary artery catheters. | Hadian et al. Critical Care 2010 14 R212 http ccforum.eom content 14 6 R212 c CRITICAL CARE RESEARCH Open Access Cross-comparison of cardiac output trending accuracy of LiDCO PiCCO FloTrac and pulmonary artery catheters Mehrnaz Hadian1 3 Hyung Kook Kim1 Donald A Severyn2 Michael R Pinsky1 Abstract Introduction Although less invasive than pulmonary artery catheters PACs arterial pulse pressure analysis techniques for estimating cardiac output CO have not been simultaneously compared to PAC bolus thermodilution CO COtd or continuous CO CCO devices. Methods We compared the accuracy bias and trending ability of LiDCO PiCCO and FloTrac with PACs COtd CCO to simultaneously track CO in a prospective observational study in 17 postoperative cardiac surgery patients for the first 4 hours following intensive care unit admission. Fifty-five paired simultaneous quadruple CO measurements were made before and after therapeutic interventions volume vasopressor dilator and inotrope . Results Mean CO values for PAC LiDCO PiCCO and FloTrac were similar 5.6 1.5 5.4 1.6 5.4 1.5 and 6.1 1.9 L min respectively . The mean CO bias by each paired method was -0.18 PAC-LiDCO 0.24 PAC-PiCCO -0.43 PAC-FloTrac 0.06 LiDCO-PiCCO -0.63 LiDCO-FloTrac and -0.67 L min PiCCO-FloTrac with limits of agreement 1.96 standard deviation 95 confidence interval of 1.56 2.22 3.37 2.03 2.97 and 3.44 L min respectively. The instantaneous directional changes between any paired CO measurements displayed 74 PAC-LiDCO 72 PAC-PiCCO 59 PAC-FloTrac 70 LíDCO-PíCcO 71 LiDCO-FloTrac and 63 PiCCO-FloTrac concordance but poor correlation r2 0.36 0.11 0.08 0.20 0.23 and 0.11 respectively . For mean CO 5 L min measured by each paired devices the bias decreased slightly. Conclusions Although PAC COTD CCO FloTrac LiDCO and PiCCO display similar mean CO values they often trend differently in response to therapy and show different interdevice agreement. In the clinically relevant low CO range 5 L min agreement improved slightly. .
