We will enroll patients submitted to breast surgery (in and outsettings) with regional
The blinded observers, in the first 48 hours post-operative, will evaluate (telephone
interview in outsetting) the pain intensity through the Numeric Rating Scale ( 0= no pain, 10
= worst possible pain) thereby recording the treatment procedures in accordance with usual
clinical practice. At the same time we will evaluate the presence of intraoperative or
postoperative complications related to regional anesthesia, the PONV rate (post-operative
nausea and vomiting) and the analgesic/antiemetic therapy.