Conditions: Surgery
Keywords: hemodynamic stability remifentanil
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 20
Healthy volunteers: no

Brief summary:
To identify a better method using a combination of routine anesthetic drugs to improve hemodynamic stability during Mayfield head pinning for craniotomy surgery.

Detailed description:
A randomized, placebo-controlled, double-blinded comparative effectiveness study to test hypothesis that addition of remifentanil bolus to a standard anesthetic drug regimen will better attenuate the hemodynamic response to the noxious stimulus of Mayfield head pin insertion than the standard anesthetic drug regimen.

Arms:
arm 1: Intravenous bolus of 10 mL of remifentanil (0.7 mcg/kg based on ideal body weight) will be given ninety seconds before head pinning as well as an intravenous bolus of propofol (0.7 mg/kg). arm 2: Intravenous bolus of 10 mL normal saline from study syringe will be given ninety seconds before head pinning as well as an intravenous bolus of propofol (0.7 mg/kg).

Interventions: intervention 1: Remifentanil intervention 2: Normal Saline
Intervention descriptions: intervention 1: Ninety seconds before pinning, an IV bolus of 10 mL of remifentanil (0.7 µg•kg-1 based on ideal body weight) will be administered from the study syringe and an IV bolus of propofol (0.7 mg•kg-1) will be administered intervention 2: Ninety seconds before pinning, an IV bolus of 10 mL of normal saline will be administered from the study syringe and an IV bolus of propofol (0.7 mg•kg-1) will be administered

Protocol document: