• Surg Gynecol Obstet · Mar 1992

    Randomized Controlled Trial Comparative Study Clinical Trial

    A randomized comparison of patient-controlled versus standard analgesic requirements in patients undergoing cholecystectomy.

    • D E Kenady, J F Wilson, R W Schwartz, C L Bannon, and D Wermeling.
    • Department of Surgery, University of Kentucky, Lexington.
    • Surg Gynecol Obstet. 1992 Mar 1; 174 (3): 216-20.

    AbstractIn the current study, 55 patients undergoing elective cholecystectomy were randomly allocated to receive postoperative analgesia (morphine sulfate) administered through either patient-controlled intravenous (PCA) or standard intramuscular (IM) routes. There were no significant differences in length of hospitalization or required dose of morphine sulfate. Patients randomized to PCA reported significantly improved subjective relief from pain and a smaller percentage of time in pain during each of the first two postoperative days. In addition, they reported less sedation and less interference with both postoperative breathing and pulmonary recovery than patients who received IM morphine. Theoretically, PCA regimens can deliver narcotic analgesia at a higher and more varied rate (with fewer side effects) compared with standard IM narcotic delivery, which is more limited by considerations of clinical doses. In PCA dosing, patients should experience less time in pain and sedation. The results of the current study support this premise.

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