• CRNA · Feb 1995

    Randomized Controlled Trial Comparative Study Clinical Trial

    A comparison of intraoperative morphine sulfate and methadone hydrochloride on postoperative visual analogue scale pain scores and narcotic requirements.

    • D F Laur, J Sinkovich, and K Betley.
    • CRNA. 1995 Feb 1; 6 (1): 21-5.

    AbstractMorphine sulfate and methadone hydrochloride exhibit very different half-lives but are described as having an analgesic potency of one. The use of a drug like methadone may provide prolonged and constant analgesia in the perioperative setting. This double-blinded investigation used methadone and morphine intraoperatively and measured pain scores and narcotic requirements in the first 24 hours postoperatively. Thirty American Society of Anesthesiology (ASA) patients, physical status I through III, between the ages of 18 to 65 years were scheduled for orthopedic surgery and randomly assigned to receive morphine or methadone at 0.30 mg/kg. Fifteen patients received morphine and fifteen patients received methadone. There was no significant difference between the two groups in terms of age, height, weight, and ASA status. No statistically significant difference was observed among the two groups between the amount of analgesic requirements postoperatively or in the visual analogue scale pain score.

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