New Clinical Study Finds Masimo Rainbow SET(R) Pulse CO-Oximetry(TM) Accurate in the Noninvasive Monitoring of Fluid Status During Surgery

UCSF Researchers Presented Study Data Demonstrating the Unique Ability of Masimo PVI(TM) to Reflect Acute Changes in Intravascular Fluid Volume at the International Anesthesia Research Society 83rd Scientific Congress

IRVINE, Calif.,, March 16 (HSMN NewsFeed) -- Masimo (Nasdaq: MASI ), the inventor of Pulse CO-Oximetry and Measure-Through Motion and Low-Perfusion pulse oximetry, today announce that a new clinical study, independently conducted by researchers from the University of California-San Francisco (UCSF), demonstrates that Masimo PVI accurately and reliably reflects acute changes in intravascular fluid volume (preload).(1) The study, presented at the International Anesthesia Research Society (IARS) 83rd Scientific Congress on March 14th in San Diego, Calif., affirms PVI as a highly predictive indicator of patient fluid status.

Assessing whether a patient needs fluid to increase their cardiac index (amount of blood the heart pumps each minute) is one of the biggest challenges anesthesiologists face during surgery. Although fluid administration is critical to optimizing patient status and enabling end organ preservation, unnecessary fluid administration is associated with increased morbidity and mortality(2) and traditional invasive measurements are only 50 to 60% accurate at predicting improvement in cardiac index after volume administration.(3) PVI--a new method for noninvasive and automatic assessment of fluid responsiveness--has been shown in multiple studies to predict fluid responsiveness in mechanically ventilated patients, helping clinicians to optimize fluid administration and improve patient outcomes.(4-6)

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