The effect of local anesthetic infiltration to the nerves which lies in the axilla on postoperative analgesia and opioid consumption in cancer breast surgery.

Thirty minutes prior induction of general anesthesia, Axillary Infiltration group: Patient in the supine position with the arm abducted. An anesthesiologist skilled with ultrasound guided regional anesthesia placed the ultrasound probe at the midclavicular level inferolaterally to locate the axillary artery and vein, and then moved laterally until the lower border of the pectoralis minor is identified at the level of the third or fourth rib. Needle advanced in the plane mode until the tip entered the area below the pectoralis half distance between the axillary vein and the rib and 20.5 ml of ropivacaine 0.5% was injected. The anesthesiologist is able to be sure that the quantity injected under ultrasound is in the fatty area of the axilla.