• S Albrecht, J Fechner, G Geisslinger, A B Maass, B Upadhyaya, H Moecke, C Haigh, and J Schüttler.
• Klinik für Anaesthesiologie, University of Erlangen-Nuremberg, Krankenhausstr. 12, D-91054, Erlangen, Germany.
• Anaesthesia. 2000 Apr 1; 55 (4): 315-22.

AbstractEighty patients undergoing major abdominal surgery using remifentanil-based anaesthesia were randomly allocated in a double-blind manner to receive an intravenous bolus of fentanyl, buprenorphine, morphine or piritramide 20 min before the end of surgery. A reduced dose was administered postoperatively when patients reported moderate pain. Subsequent analgesia was provided by patient-controlled analgesia (PCA). The mean time from the end of anaesthesia to spontaneous respiration was 9 +/- 5 min. At first pain assessment, 63% of patients reported no or mild pain; 80% of patients required the second opioid bolus, those receiving piritramide needed the bolus significantly later than patients receiving buprenorphine or fentanyl. First PCA requirement also occurred significantly later in the piritramide group. This technique provided effective postoperative pain relief and transition to routine PCA and did not compromise recovery.

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