Pectoral Nerve Block for Analgesia After Breast Augmentation

"After the anesthesic induction, the interventional team composed by at least a senior anaesthesiologist and a nurse anesthestic, will survey the patient and perform the Pecs blocks, whereas the anesthetic team is outside the room.~Realization of Pecs blocks 1 and 2 : the patient is in supine position with placing the upper limb in abduction position, a 100 mm needle is inserted under ultrasound using a linear US probe of high frequency after sheathing.~In the other group, sterilization, sheating and US are performed but the needle is not inserted."