[Infiltration with ropivacaine improves postoperative analgesia following caesarean section].

The analgesia produced by parietal infiltrations with local anesthetics (ALs) results from a block of conduction and the anti-inflammatory effect of the ALs. The duration of the reported analgesia is variable : limited to the duration of action of the ALs, or sometimes very prolonged. The purpose of this randomized, double-blind, study is to investigate the duration of the analgesia of a parietal infiltration after caesarian.