Fluid Management Based on Pleth Variability Index (PVI) Monitoring During High-risk Surgery

Oximetry monitoring is common practice in patients undergoing anesthesia. PVI continuous evaluation may be a possibility of agility and ease of obtaining accurate information about the state of cardiovascular responsiveness to volume expansion. This prospective and randomized study will try to demonstrate that the assessment of PVI is a simple and cost-saving method as compared to cardiac output or oxygen delivery monitoring technologies. Such a simple approach has therefore the potential for widespread application as it is not routinely feasible for anesthetists to use cardiac output or oxygen delivery monitoring technologies in many institutions, as well as in many countries.