BJA Advance Access published online on May 28, 2008
British Journal of Anaesthesia, doi:10.1093/bja/aen126
Influence of systolic-pressure-variation-guided intraoperative fluid management on organ function and oxygen transport
1 Department of Anaesthesiology and Intensive Care Medicine
2 Department of Anaesthesiology and Intensive Care Medicine, Hospital Worms, Worms, Germany
3 Department of Informatics, Friedrich-Schiller-University of Jena, Jena, Germany
4 Department of Anaesthesiology and Intensive Care Medicine, University Witten/Herdecke, Medical Center Cologne-Merheim, Ostmerheimerstr. 200, D-51109 Cologne, Germany
* Corresponding author. E-mail: sakkas{at}kliniken-koeln.de
Background: Dynamic variables, for example, systolic pressure variation (SPV), are superior to filling pressures for assessing fluid responsiveness. We analysed the effects of SPV-guided intraoperative fluid management on organ function and perfusion when compared with routine care.
Methods: Eighty patients (44 female and 36 male) undergoing elective major abdominal surgery were randomly assigned to a control group [n=40, mean age 66 (SD 10), range 40–84 yr] or SPV group [n=40, age 61 (16), range 26–100 yr] in which intraoperative fluid management was guided by SPV (trigger: SPV>10%). Central venous O2 saturation (ScvO2), lactate and bilirubin, creatinine, indocyanine green plasma disappearance rate (ICG-PDR), and gastric mucosal CO2 tension were measured after induction of anaesthesia, after 3, 6, 12, and 24 h.
Results: Patient characteristics, duration of surgery [5.8 (2.5) vs 5.4 (2.5) h], and infusion volumes (median 4865 vs 4330 ml) were comparable between the groups. At 3 and 6 h, SPV (P=0.04, P=0.01) and 
down (P=0.005, P=0.01) were significantly higher in the control group. Oxygen transport and organ function were comparable: baseline and 24 h values for ICG-PDR: 28.5 (7.9) and 22.7 (7.8) vs 23.9 (6.9) and 26.1 (5.9)% min–1, 77.7 (6.6) and 72.6 (5.5) vs 79.3 (7.1) and 72.8 (6.7)% for ScvO2 and 1.0 (0.4) and 1.2 (0.6) vs 0.9 (0.2) and 1.3 (0.5) mmol litre–1 for lactate. Length of mechanical ventilation, ICU stay, and mortality were comparable.
Conclusions: In comparison with routine care, intraoperative SPV-guided treatment was associated with slightly increased fluid adminstration whereas organ perfusion and function was similar.
Keywords: arterial pressure, measurement; complications, multiple organ dysfunction syndrome; fluid, balance; heart, myocardial function; monitoring, intraoperative; surgery, abdominal
This work was presented in part at the Annual Meeting of the European Society of Intensive Care Medicine (ESICM), Berlin, 2004, and the International Congress of Intensive Care and Emergency Medicine (ISICM), Brussels, 2005.
Declaration of interest. Dr S.G.S. has received honoraria from and is a member of the Medical Advisory Board of Pulsion Medical Systems AG, Munich, Germany.
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