Journal
JOURNAL OF CARDIOTHORACIC AND VASCULAR ANESTHESIA
Volume 29, Issue 1, Pages 133-138Publisher
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1053/j.jvca.2014.04.011
Keywords
post-thoracotomy pain; patient-controlled analgesia; remifentanil; morphine
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Objectives: In this double-blind, randomized study, the authors compared the effects of a patient-controlled remifentanil and morphine combination with morphine alone on post-thoracotomy pain, analgesic consumption, and side effects. Design: A prospective, randomized, double-blind clinical study. Setting: University hospital. Participants: Volunteer patients at a university hospital undergoing elective thoracotomy surgery. Interventions: Patients were allocated randomly into 2 groups to receive patient-controlled analgesia: the morphine (M) group or the morphine plus remifentanil (MR) group. Pain, discomfort, sedation scores, cumulative patient-controlled morphine consumption, rescue analgesic (meperidine) requirement and side effects were recorded for 24 hours. Measurements and Main Results: Sixty patients were allocated randomly to receive intravenous patient-controlled analgesia with morphine alone (M) or morphine plus remifentanil (MR) in a double-blind manner. Patients were allowed to use bolus doses of morphine (0.02 mg/kg) or the same dose of a morphine plus remifentanil (0.2 mu g/kg) mixture every 10 minutes without a background infusion. VAS scores were lower in the MR group than in the M group at 30 minutes (p = 0.04), 1 hour (p = 0.03), and 2 hours (p = 0.04). Mean cumulative doses of morphine were not significantly different at 27.8 +/- 15 mg for the M group and 21.9 +/- 10.5 mg for the MR group. Significantly more patients needed meperidine in the M group (p = 0.039); these also experienced more nausea (p = 0.01). Conclusions: Coadministration of PCA remifentanil with morphine for the treatment of post-thoracotomy pain did not reduce morphine consumption but provided superior analgesia, less use of rescue analgesics, and fewer side effects compared to morphine alone. (C) 2014 Elsevier Inc. All rights reserved.
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