The rate that propofol will be given will be standardized to minimize variability between anesthesiologists. Induction of anesthesia will be done with an infusion of 1000mcg/kg/min of propofol. This bolus will be followed by propofol infusion at a rate of 250-350 mcg/kg/min for 10 min, and then titrated to clinical needs by the anesthesia team.