• Anaesthesia · Dec 1985

    Randomized Controlled Trial Comparative Study Clinical Trial

    Patient-controlled postoperative analgesia with alfentanil. Adaptive, on-demand intravenous alfentanil or pethidine compared double-blind for postoperative pain.

    • E A Welchew and J Hosking.
    • Anaesthesia. 1985 Dec 1; 40 (12): 1172-7.

    AbstractA double-blind study comparing alfentanil and pethidine given intravenously by an adaptive, patient-controlled on-demand analgesic system is described. It was demonstrated that, despite its well-known rapid onset of effect, alfentanil took several hours to achieve good quality analgesia. Nevertheless, it had a much more predictable consumption pattern than pethidine. Alfentanil was associated with significantly less sedation during the postoperative period than pethidine, and was also associated with a significantly greater urine output during the 24-hour period of study. There was no evidence of tolerance or accumulation with either of the two drugs.

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