Di 1 jun yi da xue xue bao = Academic journal of the first medical college of PLA
-
Di Yi Jun Yi Da Xue Xue Bao · Jan 2003
Randomized Controlled Trial Clinical Trial[Determination of EC50 of ropivacaine and bupivacaine for postoperative epidural analgesia by up-down sequential allocation].
To determine the median effective concentration (EC50) of ropivacaine and bupivacaine for postoperative epidural analgesia, and compare the efficacy of the 2 analgesics. ⋯ Up-down sequential allocation is a simple, efficient and reliable method for EC50 determination of ropivacaine and bupivacaine, and the former has a lower efficacy during postoperative epidural analgesia.