Abdominoplasty is a major cosmetic surgery with a painful post operative period. Recently more and more anaesthetists are turning to regional analgesia for anterior abdominal wall surgery namely the Transversus Abdominis Plane (TAP) Block with or without ultrasound guidance.

The aim of this study is to evaluate the analgesic effect of TAP block ultrasound guided in post operative period of abdominoplasty.

To determine if TAP block have an analgesic effect in post operative period of abdominoplasty this study was made versus placebo: one group of patients will have a TAP block of levobupivacaine, the second group will have a TAP block with placebo before the surgery. Patient follow up includes data collected before surgery (at pré anesthesic visit and just before surgery) and data collected immediately after surgery (at post operative time) and at distance of the surgery (15 days and 3 months after the surgery). The principal aim is to show if TAP block have an analgesic effect in post operative period after abdominoplasty. To answer this question we will compare opioid intake during the two days after the surgery between the two groups.

Inclusion Criteria:

• ASA1 or 2 patients
• Undergoing abdominoplasty surgery in Centre François Xavier Michelet at Bordeaux University hospital
• Age >18 years old
• Patient agreement by signing an informed consent

Exclusion Criteria:

• Psychiatric or neurological disease
• Contraindication to regional anesthesia (haemostatic disorders, infection near to insertion point)
• Double surgery
• Long term opioid therapy
• Pregnancy or breast-feeding
• Allergy to any drug used in anesthesic or surgical procedure