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Randomized Controlled Trial Finds Masimo PVI Improves Fluid Management During Surgery
Date:8/31/2010

ter®.  In the PVI group, 500mL of crystalloids were infused at induction, followed by 2mL per kg per hour continuous infusion. A 250mL bolus of colloid was added if the PVI exceeded 13% for more than 5 minutes. In the control group, 500mL of crystalloids were infused at induction, followed by continuous infusion of crystalloids (4 to 8mL per kg per hour) and a 250mL bolus of colloids was given to compensate acute blood losses (>50mL), maintain mean arterial pressure above 65mmHg and the central venous pressure above 6mmHg.  

The results showed that the PVI group received significantly lower amounts of intraoperative crystalloids (P=0.004) and total volume infused (P=0.049), and lactate levels were significantly lower during surgery (1.2 mmol/L +/- 0.6 vs 1.6 +/- 1.2, P=0.04), 24-hours post-operatively (1.4 +/- 0.3 vs 1.8 +/- 1.0, P=0.02), and 48-hour post-operatively (1.2 +/- 0.3 vs 1.4 +/- 0.4, P=0.03).  The researchers concluded that "PVI-based goal directed fluid management reduced the volume of intraoperative fluid infused and reduced both intraoperative and postoperative lactate levels."  Study authors also noted that the reduction in lactate levels for PVI-guided patients suggests that "PVI-guided fluid management may lead to fluid administration that is tailored to each individual patient's needs."

PVI is available as part of Masimo rainbow® SET platform—the first-and-only technology to noninvasively and continuously measure total hemoglobin (SpHb®), oxygen content (SpOC™), carboxyhemoglobin (SpCO®), methemoglobin (SpMet®), Pleth Variability Index (PVI®), perfusion index (PI), and acoustic respiration rate (RRa™), in addition to the 'gold standard' Measure-Through Motion and Low Perfusion performance of Masimo SET® oxyhemoglobin (SpO2), and pulse rate (PR).

"The clinical merit of using a dynamic index like PVI to guide fluid administration relates to a ti
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SOURCE Masimo Corporation
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