1Boselli E, Debon R, Duflo F, et al. Ropivacaine 0.15% plus sufentanil 0.5μg/ml and ropivacaine 0.1% plus sufentanil 0.5μg/ml are equivalent for patient-controlled epidural analgesia during labor[J]. Anesth Analg, 2003,96:1 173.
2Vyver M, Halpem S, Joseph G. Patient-controlled epidural analgesia versus continous infasion for labor analgesia:a metar analysis[J].Br J Anaesth,2002,89(9):459.
4Stienstra R, Jonker T, Bourdrez P et al. Ropivacaine 0. 25% versus bupivacaine 0.25% for continuous epidural analgesia in labor : a double blind comparison [J]. Anesth Analg, 1995, 80 (2) : 285.
5Collis RE, Plaat FS, Morgan BM. Comparison of midwife top - ups, continuous infusion and patient - controlled epidural analgesia for maintaining morbility after a low- dose combined spinal -epidural [J]. Br J Anaesth, 1999, 82 (2): 233.
6Nakamura G, Ganem EM, Rugolo LM, et al. Effects on mo-ther and fetus of epidural and combined spinal -epiduraltechniques for labor analgesia [J]. Rev Assoc Med Bras.2009,55(4):405-409.
