Evaluation of the Effectiveness of the Administration of Local Anesthetics Via Two Catheters Placed During Surgery, and Study of the Benefits on Respiratory Function and Therefore on Recovery Time

Currently intravenous analgesics are used for postoperative analgesia. But the analgesia of these products is tempered by their adverse effects (sedation, confusion, nausea or vomiting, delayed transit, urinary retention and pruritus) which can slow down postoperative recovery. The aim of this study is to evaluate the effectiveness of the administration of local anesthetics via two catheters placed during surgery, but also to study their benefit on respiratory function and therefore on recovery time and morphine sparing.