• M Reinikainen, S Syväoja, and K Hara.
• Department of Anaesthesiology and Intensive Care, North Karelia Central Hospital, Joensuu, Finland.
• Acta Anaesthesiol Scand. 2014 Sep 1;58(8):973-9.

BackgroundWe evaluated the analgesic effect of ropivacaine infiltration into the surgical wound after caesarean section.MethodsIn a double-blind trial, 67 patients who were scheduled for caesarean section under spinal anaesthesia were randomly assigned to receive either 0.75% ropivacaine or placebo (NaCl 0.9%) through a multi-orifice catheter that was placed into the surgical wound, between the muscle fascia and the subcutaneous tissue. The study drug was administered as a bolus of 10 ml at the end of the operation, followed by an infusion at 2 ml/h for 48 h. All patients were also given paracetamol and ibuprofen. The primary outcome was the total amount of rescue oxycodone needed during the first 48 h post-operatively. Secondary outcomes included pain and patient satisfaction scores. Analyses were according to intention to treat.ResultsThe mean (± standard deviation) amount of oxycodone administered during the first 48 h was 47.5 ± 20.9 mg in the ropivacaine group and 57.8 ± 29.4 mg in the placebo group (95% confidence interval for the difference between means, -22.8-2.2 mg; P = 0.10). There were no differences between the groups in pain scores or in patient satisfaction scores.ConclusionContinuous wound infiltration with ropivacaine did not decrease the need for opioids and had no impact on pain scores or patient satisfaction after caesarean section.© 2014 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.

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