• Acta Anaesthesiol Scand · Mar 2002

    Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial

    Remifentanil sedation compared with propofol during regional anaesthesia.

    • F S Servin, J C Raeder, J C Merle, M Wattwil, A L Hanson, M H Lauwers, A Aitkenhead, J Marty, K Reite, S Martisson, and L Wostyn.
    • Service d' Anesthésie-Réanimation Chirurgicale, Hôpital Bichat, Paris, France. frederique.servin@bch.ap-hop-paris.fr
    • Acta Anaesthesiol Scand. 2002 Mar 1;46(3):309-15.

    BackgroundThe short onset and offset of remifentanil may allow for accurate dosing of sedative effect with few side-effects and rapid recovery. In this study remifentanil is compared with propofol for sedation during successful regional anaesthetic blocks.MethodsAfter informed consent was given, 125 patients undergoing surgery under spinal or brachial plexus anaesthesia were randomized to receive, either propofol: bolus 500 microg/kg plus initial infusion 50 microgkg/min or remifentanil: bolus 0.5 microg/kg plus initial infusion 0.1 microgkg/min. Study drug infusion rate was titrated throughout the procedure according to level of sedation and side-effects. Pain, discomfort, sedation level and side-effects were recorded at regular intervals until discharge from the post operative care unit (PACU).ResultsTwo patients in the remifentanil group versus ten in the propofol group were treated for discomfort or pain during surgery (P<0.02). Due to a significantly higher rate of respiratory depression (46% vs. 19% with propofol, P<0.01) the mean remifentanil infusion rate was decreased to 0.078 +/- 0.028 microgkg/min, whereas it was kept stable with propofol. Propofol patients had significantly higher (P<0.05) sedation levels and experienced more frequent amnesia of the procedure. Eleven propofol patients experienced pain at injection site, versus two remifentanil patients (P<0.02). Nausea and vomiting were more frequent in the remifentanil patients during infusion (27% vs. 2% in the propofol group, P<0.001) but similar postoperatively. Time to discharge from PACU was similar in the two groups.ConclusionPropofol results in less respiratory depression and nausea when sedation is needed during a case with a successful regional block. Remifentanil may be considered as an alternative if pain during the procedure is a major concern or if amnesia is contraindicated.

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