“…7,8,16,17 In the present study, we had complete pain relief during the first 24 hours after surgery with smalldose intrathecal morphine, which has been demonstrated to result in effective analgesia for 18 to 36 hours after cesarean delivery. 7 Nonetheless, patients receiving ropivacaine showed a larger consumption of morphine as compared with those receiving bupivacaine, and this was likely related to the shorter duration of spinal block.…”