• Anaesthesia · Jul 2004

    Multicenter Study

    Propofol sedation using Diprifusor target-controlled infusion in adult intensive care unit patients.

    • T J McMurray, J R Johnston, K R Milligan, I S Grant, S J Mackenzie, F Servin, G Janvier, and J B Glen.
    • Royal Victoria Hospital, Belfast, UK.
    • Anaesthesia. 2004 Jul 1;59(7):636-41.

    AbstractThis multicentre, non-comparative study investigated the range of target blood propofol concentrations required to sedate 122 adult intensive care patients when propofol was administered using Diprifusor target-controlled infusion systems together with opioid analgesia. Depth of sedation was assessed with a modified Ramsay score and the target blood propofol setting was adjusted to achieve the sedation desired for each patient. A desired level of sedation was achieved for 84% of the sedation period. In postcardiac surgery patients the median time-weighted average propofol target setting was 1.34 microg.ml(-1) (10th - 90th percentiles: 0.79-1.93 microg.ml(-1)). Values in brain injured and general ICU patients were 0.98 (10th - 90th percentiles: 0.60-2.55) microg.ml(-1) and 0.42 (10th - 90th percentiles: 0.16-1.19) microg.ml(-1), respectively. Measured propofol concentrations were generally close to values predicted by the Diprifusor system. Target settings in the range of 0.2-2.0 microg.ml(-1) are proposed for propofol sedation in this setting with titration as required in individual patients.

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