Goal Directed Fluid Administration for Kidney Transplantation

The "treatment" group will initially be given a 1L bolus after induction over 20 minutes (first liter may be Lactated Ringers solution or Plasmalyte, subsequent fluid will be Plasmalyte) followed by maintenance infusion at a rate of 5mL/kg/hr until the graft kidney is removed from ice. After removing the organ from ice, the kidney recipient will be administered supplemental crystalloid until PVI is 10 or lower. Plasmalyte will be warmed in accordance to the departmental hypothermia protocol. A PVI of 12 or lower will be maintained until emergence of anesthesia, at which time the PVI monitor will be removed and all patients will be managed by existing standards (pain control, fluid replacement, hemodynamic goals, etc). a.At the time the treatment group begins receiving goal directed fluid therapy the anesthesia team is to wean any vasopressors aggressively with the goal of terminating infusion as quickly as is safe.

Control patients will be given a constant infusion of crystalloid (first liter may be Lactated Ringers solution or Plasmalyte, subsequent fluid will be Plasmalyte) at a rate determined by the following: 70mL/kg for the duration of the surgery, 1L bolus after induction (over 20-30 minutes) followed by the remainder as a constant infusion determined by (70mL/kg \* wt - 1000mL) / 160 minutes (using the local average of approximately 180 minutes of operative time). a.A Masimo PVI monitor will be placed on the patient on an extremity not affected by an AV fistula and recorded for evaluation, but no fluid administration decisions will be made based on it (providers will not have access to its values).