Bupivacaine 2.5 mg/ml versus bupivacaine 0.625 mg/ml and sufentanil l μg/ml with or without epinephrine 1 μg/ml for epidural analgesia in labour

Howell, 1992, A review of prospectively controlled comparisons of epidural with non-epidural forms of pain relief during labour, International Journal of Obstetric Anesthesia, 1, 93, 10.1016/0959-289X(92)90008-R Ranta, 1994, Parturients' assessment of water blocks, pethidine, nitrous oxide, paracervical and epidural blocks in labour, International Journal of Obstetric Anesthesia, 3, 193, 10.1016/0959-289X(94)90067-1 Morgan, 1982, Effectiveness of pain relief in labour: survey of 1000 mothers, BMJ, 285, 689, 10.1136/bmj.285.6343.689 Thorp, 1989, The effect of continuous epidural analgesia on cesarean section for dystocia in nulliparous women, Am J Obstet Gynecol, 161, 670, 10.1016/0002-9378(89)90377-3 Peaceman, 1993, Factors that influence route of delivery - active versus traditional labour management, Am J Obstet Gynecol, 169, 940, 10.1016/0002-9378(93)90031-D Walton, 1984, Epidural analgesia and instrumental delivery, Anaesthesia, 39, 218, 10.1111/j.1365-2044.1984.tb07230.x Willdeck-Lund, 1979, Effect of segmental epidural block on the course of labour and the condition of the infant during the neonatal period, Acta Anaesthesiol Scand, 23, 301, 10.1111/j.1399-6576.1979.tb01455.x Vertommen, 1991, The effect of the addition of sufentanil to 0.125% of bupivacaine on the quality of analgesia during labor and on the incidence of the instrumental deliveries, Anesthesiology, 74, 809, 10.1097/00000542-199105000-00002 Chestnut, 1988, Continuous infusion epidural during labor: a randomised, double blind comparison of 0.0625% bupivacaine-0.0002% fentanyl versus 0.125% bupivacaine, Anesthesiology, 68, 754, 10.1097/00000542-198805000-00013 Chestnut, 1990, Continuous epidural infusion of 0.0625% bupivacaine-0.0002% fentanyl during the second stage of labor, Anesthesiology, 72, 613, 10.1097/00000542-199004000-00006 Abboud, 1985, Safety and efficacy of epinephrine added to bupivacaine for lumbar epidural analgesia in obstetrics, Anesth Analg, 64, 585, 10.1213/00000539-198506000-00005 Camann, 1993, Intrathecal sufentanil for labor analgesia. Effects of added epinephrine, Anesthesiology, 78, 870, 10.1097/00000542-199305000-00010 Grice, 1990, Labor analgesia with epidural bupivacaine plus fentanyl: enhancement with epinephrine and inhibition with 2-chloroprocaine, Anesthesiology, 72, 623, 10.1097/00000542-199004000-00008 Olofsson, 1998, Obstetric outcome following epidural analgesia with bupivacaine-adrenaline 0.25% or bupivacaine 0.125% with sufentanil - a prospective randomised controlled study in 1000 parturients, Acta Anaesthesiol Scand, 42, 284, 10.1111/j.1399-6576.1998.tb04918.x Carli, 1993, Does epidural analgesia influence the mode of delivery in primiparae managed actively?: A preliminary study of 1250 women, International Journal of Obstetric Anesthesia, 2, 15, 10.1016/0959-289X(93)90024-C Campbell, 1997, Addition of epinephrine to intrathecal bupivacaine and sufentanil for ambulatory labor analgesia, Anesthesiology, 86, 525, 10.1097/00000542-199703000-00003 Robertson, 1985, Epidural fentanyl, with and without epinephrine for post-caesarean section analgesia, Can Anaesth Soc J, 32, 502, 10.1007/BF03010800 Collins, 1983, Suppression by spinally administered epinephrine on noxiously evoked dorsal horn neuron activity in cats. Evidence for spinal epinephrine analgesia, Anesth Analg, 62, 253 Niemi, 1998, Adrenaline markedly improves thoracic epidural anesthesia, Acta Anaesthesiol Scand, 42, 897, 10.1111/j.1399-6576.1998.tb05348.x Phillips, 1988, Continuous infusion epidural analgesia in labor: The effect of adding sufentanil to 0.125% bupivacaine, Anesth Analg, 67, 462, 10.1213/00000539-198802001-00173 Camann, 1992, A comparison of intrathecal, epidural and intravenous sufentanil for labor analgesia, Anesthesiology, 77, 884, 10.1097/00000542-199211000-00008 Welchew, 1983, The optimum concentration for epidural fentanyl (a randomised, double-blind comparison with and without 1:200.000 adrenaline), Anaesthesia, 38, 1027, 10.1111/j.1365-2044.1983.tb12476.x Malinow, 1990, Effect of epinephrine on intrathecal fentanyl analgesia on patients undergoing postpartum tubal ligation, Anesthesiology, 73, 381, 10.1097/00000542-199009000-00003