Po. Maitre, DIPRIVAN(R) - EFFICIENT CONCENTRATIONS IN RELATION TO PHYSIOLOGICAL-PARAMETERS AND ASSOCIATED DRUGS, Annales francaises d'anesthesie et de reanimation, 13(4), 1994, pp. 505-509
According to the literature there is a large inter-individual variabil
ity, with blood concentrations often ranging from 1 to 3-fold. These v
ariations between patients reduce the value of recommended concentrati
ons. In practice it is more important to titrate the dose according to
the clinical response (or lack of response), rather than to blindly f
ollow the various dosage regimens proposed and, with which it is theor
etically possible to rapidly reach and then maintain the desired propo
fol concentration. In practice, what is the point of carefully maintai
ning a propofol concentration of 3.5 mug . mL-1 (theoretical maintenan
ce level for an average patient), if the latter (failing to comply wit
h the usual range of concentrations) needs a propofol level of 6 mug .
mL? In practice, we must titrate!