ABSTRACT
Post operation pain is seen in 30-70 percent of patients. Using local anesthetic is a safe, easy and cheap method for post opration pain management. In this study, the effects of lidocaine and bupivacaine lavage on post operation pain are assessed. In this double blind randomized control clinical trial, 90 healty women between 15-60 years old randomly allocated in 3 groups, lidocaine, bupivacaine and normal salin. After abdominal hysterectomy the medicine or placebo [in uniform package] is Administered in peritoneal cavity by surgeon and, 0, 2,6,12,24 and 48 hours after the surgery, the rate of pain was checked. Consumption of morphin and frequency of vomiting were measured and compared between groups using SPSS 12 software. Post operational pain relief was significantly lower in lidocaine group compared with bupivacaine and normal saline, however, morphin consumption and frequency of vomiting were the same in three groups. Based on the results, it can be concluded that intraperitoneal lidocaine provides significant pain relief for 12 hours after abdominal hysterectomy