Effect of a remifentanil bolus dose on the cardiovascular response to emergence from anaesthesia and tracheal extubation

M A Shajar, J P Thompson, A P Hall, N A Leslie, A J Fox
British Journal of Anaesthesia 1999, 83 (4): 654-6
We have examined the effect of remifentanil on the haemodynamic response to emergence from anaesthesia and tracheal extubation in 40 ASA I-II female patients undergoing diagnostic laparoscopy, in a randomized, double-blind study. All patients received a standard general anaesthetic comprising propofol, vecuronium and 1% isoflurane with 66% nitrous oxide in oxygen. At the end of surgery, a bolus dose of remifentanil 1 microgram kg-1 (n = 20) or saline placebo (n = 20) was given and tracheal extubation was performed when standard criteria were achieved. Arterial pressure and heart rate were recorded non-invasively at 1-min intervals from the end of surgery. Remifentanil attenuated the increase in both mean arterial pressure (P < 0.001) and heart rate (P < 0.05) at extubation. Mean time to extubation was 7.2 (SEM 0.6) min and 4.0 (0.5) min in the remifentanil and saline groups, respectively (P < 0.001). There was no difference in the incidence of coughing at extubation, time to recovery from anaesthesia or time to fitness for discharge from the recovery room.

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