Articles: postoperative-pain.
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Randomized Controlled Trial Clinical Trial
Epidural clonidine after cesarean section. Appropriate dose and effect of prior local anesthetic.
Epidurally administered clonidine represents a new approach to postcesarean section pain therapy, yet the appropriate bolus dose and infusion to provide effective pain relief have not been defined. In addition, whether 2-chloroprocaine, a commonly used local anesthetic for intraoperative anesthesia, interferes with clonidine's analgesia, as it does with that of opioids, has not been examined. In this study, using a randomized, blinded design, 63 women received either bupivacaine or 2-chloroprocaine for epidural anesthesia for cesarean section and then received, upon request for analgesia in the recovery room, epidural clonidine 400 micrograms or 800 micrograms bolus, each followed by a 24-h infusion of 40 micrograms/h, or an equivalent volume bolus and infusion of saline. ⋯ Clonidine did not alter resolution of residual local anesthetic sensory blockade, as measured by 2- or 4-segment regression following either local anesthetic, but did prolong duration of motor blockade in women receiving bupivacaine. Clonidine produced small decreases in heart rate and blood pressure. One patient received iv fluids for hypotension; one had asymptomatic bradycardia resolving without therapy; and one had mild hypoxemia with snoring during clonidine-induced sedation, responding to supplemental oxygen.(ABSTRACT TRUNCATED AT 250 WORDS)
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Anaesth Intensive Care · Feb 1992
Randomized Controlled Trial Comparative Study Clinical TrialA double-blind randomised trial comparing postoperative analgesia after perioperative loading doses of methadone or morphine.
This double-blind randomised study compared postoperative analgesia after a loading regimen of methadone or morphine in thirty women undergoing abdominal hysterectomy. Methadone or morphine, 0.25 mg.kg-1, was given intravenously at induction of anaesthesia with further increments in the recovery room for analgesia if required. The mean (SD) total doses of methadone and morphine required were 0.43 (0.13) mg.kg-1 and 0.45 (0.15) mg.kg-1 respectively. ⋯ Ten patients in the methadone group did not request any further opioid analgesics while all patients in the morphine group made at least two requests for opioids. The overall postoperative course was remembered as less painful by patients in the methadone group (P less than 0.001). There was no significant respiratory depression or excessive sedation in either group.
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Recent research into the mechanisms of pain and pain management and the development of new pharmacological agents have greatly increased the possibilities for preventing and treating postoperative pain in the pediatric patient. This article briefly reviews the physiology of pain and the measurement and assessment of pain, and then discusses in some detail the various modalities useful in treating pain in the pediatric patient during the perioperative period.
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Clinical nursing research · Feb 1992
Randomized Controlled Trial Clinical TrialPatient-controlled analgesia for older adults.
Use of patient-controlled analgesia (PCA) was compared with nurse-administered intermittent intramuscular (IM) injections of morphine in older adults during their postoperative recovery. Data analyses indicated that the PCA and IM groups did not differ in pain intensity, pain distress, and satisfaction. The PCA group had significantly less sleep disturbance from pain than the IM group. Neither group was considered to have acceptable pain management.
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Acta Anaesthesiol Scand · Feb 1992
High frequency of cough after intravenous bolus injection of Ketogan (ketobemidone + N,N-dimethyl-3,3-diphenyl-1-methylallylamine chloride) for postoperative pain relief.
The frequency of cough 15-45 s after intravenous administration of a low dose of the opioid receptor agonist ketobemidone given for postoperative pain relief was assessed in 121 patients undergoing gynaecological or obstetrical operations. In patients subjected to caesarean section under spinal anaesthesia using bupivacaine, the frequency of an early cough reaction was 50.7%, whereas in patients previously exposed to opioids during the surgical procedure the frequency was 11.1%. This side-effect of ketobemidone has not been reported before.