[Local anesthetic effect of bupivacaine in pain relieving after cesarean section]

ABSTRACT

One of the most common causes of fear from the surgery in patients is post operative pain. Opioid analgesic and NSAIDs are commonly used to relieve pain in patients. Both groups have some side effects. In this study we evaluated the local anesthetic effect of bupivacain in pain relieving after cesarean section. This clinical-trial study was performed on 100 pregnant women who were referred to the Najmiyeh hospital in Tehran, Iran, for cesarean delivery. Pregnant women were randomly divided into two equal groups. Case group was injected bupivacaine 0.5% [10 ml subcutaneously] after the cesarean delivery. Pain Intensity was evaluated in 1st, 2nd, 4th, 6th, 9th and 12th hours after caesarean operation using Visual Analogue Scaling [VAS]. Sedative [Petedin] consumption was measured and was compared in both groups. Results were analyzed using student t-test and Mann- whiney test. The results of this study demonstrated that mean analgesic consumption in case group was 25.63 +/- 16 [mg] and it was 35.05 +/- 13.6 [mg] in control group [P<0.05]. Mann- Whitney test demonstrated that pain intensity is significantly lower in case group in 4th, 6th and 9th hours after cesarean operation compared to the control group. The data of this study shows that bupivacaine 0.5% can have a good sedative effect after cesarean operation