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Pregabalin and dexamethasone in combination with paracetamol for postoperative pain control after abdominal hysterectomy. A randomized clinical trial.

Author(s): Mathiesen O, Rasmussen ML, Dierking G, Lech K, Hilsted KL, Fomsgaard JS, Lose G, Dahl JB

Affiliation(s): Department of Anaesthesia, Copenhagen University Hospital, Glostrup, Denmark. olemat@dadlnet.dk

Publication date & source: 2009-02, Acta Anaesthesiol Scand., 53(2):227-35. Epub 2008 Dec 6.

BACKGROUND: Multimodal analgesia may be important for optimal postoperative pain treatment and facilitation of early mobilization and recovery. We investigated the analgesic effect of pregabalin and dexamethasone in combination with paracetamol after abdominal hysterectomy. METHODS: One hundred and sixteen patients were randomly assigned to either group A (paracetamol+placebo x 2), group B (paracetamol+pregabalin+placebo) or group C (paracetamol+pregabalin+dexamethasone). According to randomization and preoperatively, patients received paracetamol 1000 mg, pregabalin 300 mg, dexamethasone 8 mg or placebo. General anaesthesia was performed. Postoperative pain treatment was paracetamol 1000 mg x 4 and patient-controlled intravenous morphine, 2.5 mg bolus. Nausea was treated with ondansetron. Morphine consumption, pain score (visual analogue scale) at rest and during mobilization, nausea, sedation, dizziness, number of vomits and consumption of ondansetron were recorded 2, 4 and 24 h after the operation. P<0.05 was considered statistically significant. RESULTS: The 24-h morphine consumption and pain score, both at rest and during mobilization, were not significantly different between treatment groups. The mean nausea score (P=0.002) was reduced in group C vs. A. The number of vomits was significantly reduced in both group B (P=0.041) and C (P=0.001) vs. A. Consumption of ondansetron was reduced in group C vs. A and B (P<0.001). Other side effects were not different between groups. CONCLUSION: Combinations of paracetamol and pregabalin, or paracetamol, pregabalin and dexamethasone did not reduce morphine consumption and pain score compared with paracetamol alone for patients undergoing abdominal hysterectomy. Dexamethasone reduced nausea, vomiting and use of ondansetron.

Page last updated: 2009-02-08

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