7Loubert C, 0 Brien P J, Fernando R, et al. Epidural volume extension in combined spinal epidural anaesthesia for dective caesarean section: a randomized controUed trial. [J]. Anaesthesia, 2015,66 ( 5 ) : 341-347.
8Mebazaa MS, Ouerghi S, Ben Meftah R, et al. Reduction of bupivacaine dose in spinal anaesthesia for caesarean section may improve maternal satisfaction by reducing incidence of low blood pressure episodes [J]. Middle East J Anesthesiol, 2014,20(5 ) : 673-678.
9Serene Leo, Ban Leong Sng, Yvonne Lim,et al. A randomized compari- son of low doses of hyperbaric bupivacaine in combined spinal-epidu- ral anesthesia for cesarean delivery [J]. Anesthesia & Analgesia, 2012,109(5) : 1600-1605.
10Bremerich DH, Fetsch N ,Zwissler BC, et al. Comparison of intrathe- cal bupivacaine and levobupivacaine combined with opioids for Cae- sarean section [J]. Curr Med Res Opin, 2014,23(12) : 3047-3054.
