• J Clin Anesth · Dec 2016

    Randomized Controlled Trial

    Influence of high-dose intraoperative remifentanil with intravenous ibuprofen on postoperative morphine consumption in patients undergoing pancreaticoduodenectomy: a randomized trial.

    • Chang-Hoon Koo, Youn Joung Cho, Deok Man Hong, Yunseok Jeon, and Tae Kyong Kim.
    • Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
    • J Clin Anesth. 2016 Dec 1; 35: 47-53.

    Study ObjectiveHigh-dose remifentanil during surgery paradoxically increases postoperative pain intensity and morphine consumption. Cyclooxygenase inhibitors decrease prostaglandin synthesis, thereby antagonizing N-methyl-d-aspartate receptor activation, and may reduce hyperalgesia. This study was performed to evaluate whether postoperative morphine consumption increased following intraoperative continuous remifentanil infusion and whether this could be prevented by intravenous ibuprofen pretreatment.DesignA randomized controlled study.SettingSingle university hospital, study period from September 2014 to March 2015.PatientsOne hundred and twenty patients undergoing pancreaticoduodenectomy.InterventionsAfter induction of anesthesia, patients received remifentanil target-controlled infusion (effect site concentration of 4 ng/mL or 1 ng/mL) with or without intravenous ibuprofen (800 mg).MeasurementsPostoperative cumulative total morphine consumption and pain intensity were assessed.Main ResultsIntraoperative remifentanil use in patients receiving high-dose remifentanil was more than 3-fold higher than that in patients receiving low-dose remifentanil (2666.8 ± 858.4 vs 872.0 ± 233.3 μg, respectively; P< .001). However, cumulative total morphine consumption at postoperative 1, 3, 6, 12, 24, and 48 hours did not differ among the groups. There were no differences among the groups in the self-administered analgesic dose by the patients using a controlled analgesia device, number of self-administration attempts, numerical rating scale for pain, or analgesic side effects.ConclusionsWe found no influence on postoperative pain after high-dose remifentanil in patients undergoing pancreaticoduodenectomy. Addition of intravenous ibuprofen did not reduce postoperative morphine consumption or pain intensity.Copyright © 2016 Elsevier Inc. All rights reserved.

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