3Casati A, Putzu M. Bupivacaine,levobupivacaine and ropivacaine: are they clinically different.'? [J]. Best Pract Res Clin Anaesthesiol, 2005,19 (2) : 247-268.
4Lee YY, Nqan Kee WD, Chang HK, et al. Spinal ropivacaine for lower limb surgery;a dose-response study [J]. Anesth Analg, 2007,105 (2) : 520-523.
6Wang X, Xu JM, Zhou F, et al. Maternal Position and Development of Hypotension in Patients undergoing Cesarean Section under Combined Spinal - Epidural Anesthesia of Intrathecal Hyperbaric Ropivacaine[ J]. Med Sci Monit, 2015,21:52-58.
7Kim YS, Park JH, Lee SY, et al. Combined spinal - epidural anesthesia for lumbar discectomy in a patient with asymptomatic severe aortic stenosis: a case report [ J ]. Korean J Anesthesiol, 2014,67(2) :129-32.
8Hart G,Zhao GY, Li L, et al. Comparison of hemodynamics after combined spinal - epidural anesthesia between decubitus and sitting positions in aged patients undergoing total hip replacement [ J ]. Pharmacology,2014,93 (3 - 4 ) : 193-196.
