2Kristensen JD, Karlsten R, Gordh T. Spinal cord blood flow after intrathecal injection of ropivacaine:a screening for neurotoxic effects. Anesth Analg, 1996,82 : 636-640.
3Kristensen JD, Karlsten R, Gordh T. Spinal cord blood flow after intrathecal injection of ropivacaine and bupivacaine with or without epinephrine in rats. Acta Anaesthesiol Scand, 1998,42 : 685-690.
4McDonald SB,Liu SS,Kopacz DJ ,et al. Hyperbaric spinal ropivacaine: a comparison to bupivacaine in volunteers.Anesthesiology, 1999,90 : 971-977.
3Kshatri AM, McGrrity S J, Hahn MB, et al. Patient-cont- rolled analgesia using ropivacaine via an intrathecal cathe- ter[J]. RegAnesth Pain Med, 1998,23(3) : 320.