Table 4. Blood Propofol and Blood Remifentanil Concentrations Associated with a 50% Probability of No Response to Intraabdominal Surgical Stimuli in the Individual Patients
Cprop; mean (± SD) measured blood propofol concentrations. Fitted C50(± SE) and γ, for remifentanil characterizing the probability of no response to surgical stimuli observed during the intraabdominal period of surgery in patients receiving remifentanil as a supplement to propofol at target concentrations of 2 μg/ml (group A), 4 μg/ml (group B), or 6 μg/ml (group C).