Induction of general anaesthesia by effect-site target-controlled infusion of propofol: influence of pharmacokinetic model and ke0 value.

Abstract:

:We studied the use of a new ke0 value (0.6 min(-1)) for the Marsh pharmacokinetic model for propofol. Speed of induction and side-effects produced were compared with three other target-controlled infusion systems. Eighty patients of ASA physical status 1-2 were studied in four groups in a prospective, randomised study. Median (IQR [range]) induction times were shorter with the Marsh model in effect-site control mode with a ke0 of either 0.6 min(-1) (81 (61-101 [49-302])s, p < 0.01), or 1.2 min(-1) (78 (68-208 [51-325])s, p < 0.05), than with the Marsh model in blood concentration control (132 (90-246 [57-435])). The Schnider model in effect-site control produced induction times that were longer (298 (282-398 [58-513])s) than those observed with the Marsh model in blood control (p < 0.05), or either effect-site control mode (p < 0.001). There were no differences in the magnitude of blood pressure changes or frequency of apnoea between groups.

journal_name

Anaesthesia

journal_title

Anaesthesia

authors

Thomson AJ,Morrison G,Thomson E,Beattie C,Nimmo AF,Glen JB

doi

10.1111/anae.12597

subject

Has Abstract

pub_date

2014-05-01 00:00:00

pages

429-35

issue

5

eissn

0003-2409

issn

1365-2044

journal_volume

69

pub_type

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