Articles: analgesics.
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Anesthesia and analgesia · Nov 1995
Randomized Controlled Trial Clinical TrialAnalgesia after thoracotomy: effects of epidural fentanyl concentration/infusion rate.
After thoracotomy some patients have discomfort, primarily in the rostral portion of their incisions. In this prospective, randomized study in 66 patients after lateral thoracotomy we evaluated whether, for equal fentanyl dosage in micrograms per kilogram, epidural infusion (lumbar catheter) of fentanyl 5 micrograms/mL provided better segmental analgesia (including the rostral portion of the incision) than a 10-micrograms/mL concentration infused at a rate half that used in the 5-micrograms/mL group. Ketorolac was used as an analgesic adjunct for nonincisional pain. ⋯ There were no significant differences in demographics, surgical procedure, intraoperative fentanyl dose, side effects, rates of epidural fentanyl infusion, or total epidural fentanyl doses at 12, 24, 36, 48, and 60 h postbolus. Analgesia was effective in both groups. Although overall comfort levels were lower (i.e., indicated greater comfort) in the 5-micrograms/mL group in 6 of 8 visual analog scores (VASs) for comfort level and 20 of 24 VRSs for comfort level scores, and mean VRSs for the rostral portion of the incision were lower (i.e., indicated greater comfort) in the 5-micrograms/mL group at 21 of 24 evaluation subsets (one statistically significant), statistical significance was achieved in only six evaluation subsets.(ABSTRACT TRUNCATED AT 250 WORDS)
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Randomized Controlled Trial Clinical Trial
Pre-emptive versus post-surgical administration of ketorolac for hysterectomy.
Seventy-seven women who underwent routine vaginal or abdominal hysterectomy were randomly allocated to receive intravenous ketorolac 30 mg either 30 min before surgical incision (pre-emptive group, n = 37), or at the end of the surgical procedure (post-surgical group, n = 40). The patients received routine post-operative care, which included morphine by patient-controlled analgesia, 1 mg per demand with a lockout of 6 min and a background infusion of 1 mg h-1. In addition, pain was assessed at 12 and 24 h using a 100 mm visual analogue scale (VAS), both at rest and on coughing. ⋯ There were no significant differences on univariate testing. Subsidiary stepwise multiple regression modelling identified age, weight, type of hysterectomy, and the timing of ketorolac administration as significant explanators of post-operative morphine consumption. A statistically significant pre-emptive analgesic effect was therefore identifiable, but the clinical significance is uncertain in relation to the other influences on post-operative analgesic requirements.
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Randomized Controlled Trial Comparative Study Clinical Trial
Intra-articular analgesia for arthroscopic meniscectomy.
Intra-articular morphine has been shown to provide prolonged analgesia after arthroscopic knee surgery; the addition of local anaesthetic agents has been reported to improve this analgesic effect. Pethidine possesses local anaesthetic properties, and therefore this study was designed to evaluate its analgesic efficacy after arthroscopic meniscectomy. Sixty patients were allocated randomly to receive intra-articular injections of pethidine 50 mg, morphine 5 mg or saline after elective arthroscopic meniscectomy. ⋯ Both treatment groups had significantly lower pain scores compared with the control group. Patients in the pethidine group had lower pain scores than those in the morphine group at 0.5, 1 and 2 h, but significantly higher scores at 12 and 24 h. These observations suggest that the local anaesthetic effect of pethidine may be responsible for the improved early analgesia, but its duration of action appears to be less than that of morphine.
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Randomized Controlled Trial Clinical Trial
Cost-effectiveness analysis of patient-controlled analgesia, intramuscular q.i.d. injection and p.r.n. injection for postoperative pain relief.
We conclude that the intravenous PCA method is a cost-effective technique. Although the PCA device is expensive, the cost-effectiveness analysis should give explicit figures for physicians and the hospital administrators to decide whether they should use the PCA instead of the conventional method.
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Pathologie-biologie · Nov 1995
Randomized Controlled Trial Comparative Study Clinical Trial[Calcium carbasalate-metoclopramide combination versus dihydroergotamine in the treatment of migraine attacks].
In this randomised, double-blind, cross-over study the association of calcium carbasalate+metoclopramide was compared with oral dihydroergotamine mesilate in the treatment of migraine attacks. 155 patients suffering from migraine, with or without aura were analysed; the main efficacy criteria being the evolution of the headache intensity: disappearance of headache 2 hours after administration or incomplete improvement (severe to moderate headache reduced to slight headache). There was a significantly greater reduction in headache intensity following administration of CSC-METO (p < 0.001), the percentage of patients showing recovery or improvement two hours after administration being 64.5% with CSC-METO compared to 43.5% with DHE. A significantly more marked improvement following administration of CSC-METO was also observed for nausea, photophobia, phonophobia, use of analgesic treatment, impact on normal activities and overall assessment by the patient and physician. The frequency of undesirable events was weak and identical for both treatments.