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Intraoperative Monitoring clinical trials at UCSF
1 in progress, 0 open to new patients

  • Intraoperative Pleth Variability Index (PVI) Variability

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    Pleth Variability Index (PVI) is a variable that is derived from photoplethysmography (PPG) signal. It is used as a surrogate for intravascular volume status intraoperatively. PVI can have significant amount of baseline variability which appears to oscillate at a very low frequency (5-10 minute cycles). This study aims to investigate the origin of these baseline oscillations.