Fluid Administered According to PVI Versus Fluid Management in Laparoscopic Trendelenburg Surgeries

masimo is a device for the continuous noninvasive measurement of arterial hemoglobin functional oxygen saturation (SpO2), pulse rate (PR), pleth variability index (PVi) and pleth respiratory rate (Rrp) PI (perfusion index).

intraoperative fluid deficit is calculated according to the 4-2-1 rule by summing up the hourly basal fasting level, intraoperative losses depending on the degree of tissue trauma (1-2mlt/kg/h in small-sized surgeries, 2-4mlt/kg/h in medium-sized surgeries, 4-8mlt/kg/h in large-sized surgeries), blood losses, urine and losses from the nasogastric tube. Fluid is given in this way.