Comparison of Propofol to Precedex With Propofol for Emergence and Recovery in Patients Having Craniotomy Surgery

Subjects randomized to the comparison group will receive a standardized general anesthetic. Anesthesia will be induced with propofol 1.5 ? 2.5 mg/kg, rocuronium 0.6 mg/kg, and sufentanil 0.1 ? 1mcg/kg. Anesthesia will be maintained with an infusion with propofol 25 -200 mcg/kg/min, sufentanil 0.0025 - 0.03 mcg/kg/min, and zemuron as needed. For the Precedex group the drug will be infused at 0.3-0.7 mcg/kg/hr. Blood pressure will be maintained within 10% of baseline prior to opening of the dura, subsequently to be maintained between a systolic of 100 ? 130 mmHg. Hypertension will be managed with standardized amounts of labetalol and nicardipine. Morphine will be titrated as needed to a maximum of 0.05mcg/kg at the conclusion of case. Hemodynamic data and emergence evaluations will be collected in the operating room, pre-induction until the end of anesthesia and discharge from the operating room. There will be no further follow up.

evaulation of propofol for emergence from anesthesia