Articles: opioid-analgesics.
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Randomized Controlled Trial Comparative Study Clinical Trial
Epidural meperidine after cesarean section. A dose-response study.
Epidural meperidine is effective for postoperative analgesia, but the optimum dose has not been evaluated. ⋯ Epidural meperidine provides effective postoperative analgesia, although of relatively short duration. A single dose of 25 mg is superior to 12.5 mg, but there is no benefit from increasing the dose to 50 mg or greater.
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Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
Comparison of intravenous ketorolac, meperidine, and both (balanced analgesia) for renal colic.
To compare the analgesic efficacy and safety of IV ketorolac, the only nonsteroidal antiinflammatory drug indicated for parenteral use in acute pain in the United States, with IV meperidine and with a combination of the two agents in renal colic. ⋯ IV ketorolac, alone or in combination with meperidine, was superior to IV meperidine alone in moderate and severe renal colic. Because many subjects in all three treatment groups received supplemental meperidine and because response to ketorolac alone cannot be predicted, clinicians may choose to initiate treatment with a ketorolac-meperidine combination.
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Anesthesia and analgesia · Aug 1996
Randomized Controlled Trial Clinical TrialLarge-dose intrathecal morphine for coronary artery bypass grafting.
Aggressive control of pain during the immediate postoperative period after cardiac surgery, associated with decreased blood catecholamine levels, may decrease morbidity and mortality. This study investigated the use of large-dose intrathecal morphine for cardiac surgery and its effect on postoperative analgesic requirements and blood catecholamine levels. Patients were randomized to receive either 4.0 mg of intrathecal morphine (Group MS) or intrathecal saline placebo (Group NS). ⋯ Patients in Group MS required significantly less postoperative intravenous morphine than patients in Group NS. Although perioperative norepinephrine and epinephrine levels in Group MS patients tended to be lower than Group NS patients, the differences were not statistically significant. In conclusion, large-dose intrathecal morphine initiates reliable postoperative analgesia but does not reliably attenuate the stress response during and after cardiac surgery.
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Randomized Controlled Trial Clinical Trial
Effect of varying intravenous patient-controlled analgesia dose and lockout interval while maintaining a constant hourly maximum dose.
To investigate the effect on the use of intravenous patient-controlled analgesia (PCA) of varying the dose (D) and lockout interval (LI) while keeping the hourly maximum dose constant. ⋯ The use of 1.0 mg with a 6-minute lockout may represent appropriate dose titration because this group obtained equivalent analgesia, morphine use, and side effects as the two larger dose and lockout groups. However, the increased number of PCA attempts and missed attempts may reflect lower satisfaction with PCA therapy.
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J. Am. Vet. Med. Assoc. · Aug 1996
Randomized Controlled Trial Comparative Study Clinical TrialEpidural administration of bupivacaine, morphine, or their combination for postoperative analgesia in dogs.
To compare the analgesic effects of epidural administration of morphine (MOR), bupivacaine hydrochloride (BUP), their combination (COM), and 0.9% sterile NaCl solution (SAL) in dogs undergoing hind limb orthopedic surgeries. ⋯ Postoperative epidural administration of COM or BUP alone provides longer-lasting analgesia, compared with MOR or SAL.