The primary hypothesis is that esmolol and lidocaine, when given without the use of a tourniquet, provide relief of propofol injection pain that is superior to placebo when assessed using the propofol pain scoring tool
The study will include three arms: lidocaine, esmolol, and placebo. Eligible patients will be 18-60 years old, ASA physical status 1-3, and scheduled for an elective surgical procedure. Patients will be randomized to receive lidocaine, esmolol, or placebo. Both the patients and the administering/observing providers will be blinded to the study drug or placebo being administered
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
33
1 mg/kg lidocaine to a max of 100 mg administered approximately 30 seconds prior to the administration of propofol, with pain score obtained before the propofol is administered.
0.5 mg/kg esmolol to a max of 50mg administered approximately 30 seconds prior to the administration of propofol, with pain score obtained before the propofol is administered.
saline water administered approximately 30 seconds prior to the administration of propofol, with pain score obtained before the propofol is administered.
Wake Forest Health Sciences
Winston-Salem, North Carolina, United States
Patient Pain Score
pain scoring system previously used by studies looking at various remedies to decrease Propofol injection pain - 0-10 with 0=no pain up to 10=worst pain imaginable
Time frame: following administration of a sub-induction dose of propofol, 0.5 mg/kg up to 50 mg, just prior to full induction
Heart Rate
heart rate is measured as numbers on a scale with normal 60-100
Time frame: heart rate is measured each minute for the first 10 minutes following induction
Systolic Blood Pressure
blood pressure measured in mmHg
Time frame: Systolic Blood Pressure is measured each minute for the first 10 minutes following induction
Oxygen Saturation Percentage
oxygen saturation is measured on a percentage, with normal range \>90%
Time frame: Oxygen saturation measured each minute for the first 10 minutes following induction
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