A double-blind randomized controlled trial of patient-controlled epidural analgesia with or without a background infusion following initial spinal analgesia for labor pain

Ferrante, 1991, Patient-controlled epidural analgesia: demand dosing, Anesth Analg, 73, 547, 10.1213/00000539-199111000-00006 Gambling, 1993, Patient-controlled epidural analgesia in labour: varying bolus dose and lockout interval, Can J Anaesth, 40, 211, 10.1007/BF03037032 Ferrante, 1994, The role of continuous background infusions in patient-controlled epidural analgesia for labor and delivery, Anesth Analg, 79, 80, 10.1213/00000539-199407000-00015 Curry, 1994, Patient-controlled epidural analgesia in obstetric anaesthetic practice, Pain, 57, 125, 10.1016/0304-3959(94)90116-3 van der Vyver, 2002, Patient-controlled epidural analgesia versus continuous infusion for labour analgesia: a meta-analysis, Br J Anaesth, 89, 459, 10.1093/bja/89.3.459 Ledin Eriksson, 2003, PCEA compared to continuous epidural infusion in an ultra-low-dose regimen for labor pain relief: a randomized study, Acta Anaesthesiol Scand, 47, 1085, 10.1034/j.1399-6576.2003.00207.x Halpern, 2005, Recent advances in patient-controlled epidural analgesia for labour, Curr Opin Anaesthesiol, 18, 247, 10.1097/01.aco.0000169229.75938.c8 Stratmann, 2005, A randomized comparison of a five-minute versus fifteen-minute lockout interval for PCEA during labor, Int J Obstet Anesth, 14, 200, 10.1016/j.ijoa.2004.12.008 Carvalho, 2005, “Ultra-light” patient-controlled epidural analgesia during labor: effects of varying regimens on analgesia and physician workload, Int J Obstet Anesth, 14, 223, 10.1016/j.ijoa.2005.02.003 Paech, 1992, Patient-controlled epidural analgesia in labour–is a continuous infusion of benefit?, Anaesth Intensive Care, 20, 15, 10.1177/0310057X9202000103 Petry, 2000, Epidural PCA with bupivacaine 0.125%, sufentanil 0.75 microgram and epinephrine 1/800.000 for labor analgesia: is a background infusion beneficial?, Acta Anaesthesiol Belg, 51, 163 Boselli, 2004, Background infusion is not beneficial during labor patient-controlled analgesia with 0.1% ropivacaine plus 0.5 microg/ml sufentanil, Anesthesiology, 100, 968, 10.1097/00000542-200404000-00030 Missant, 2005, Patient-controlled epidural analgesia following combined spinal-epidural analgesia in labour: the effects of adding a continuous epidural infusion, Anaesth Intensive Care, 33, 452, 10.1177/0310057X0503300405 Bremerich, 2005, Comparison of continuous background infusion plus demand dose and demand-only parturient-controlled epidural analgesia (PCEA) using ropivacaine combined with sufentanil for labor and delivery, Int J Obstet Anesth, 14, 114, 10.1016/j.ijoa.2004.12.005 Saito, 2005, Patient-controlled epidural analgesia during labor using ropivacaine and fentanyl provides better maternal satisfaction with less local anesthetic requirement, J Anesth, 19, 208, 10.1007/s00540-005-0316-2 Sia, 2007, A comparison of a basal infusion with automated mandatory boluses in parturient-controlled epidural analgesia during labor, Anesth Analg, 104, 673, 10.1213/01.ane.0000253236.89376.60 Lyons, 2007, A comparison of minimum local anesthetic volumes and doses of epidural bupivacaine (0.125% w/v and 0.25% w/v) for analgesia in labor, Anesth Analg, 104, 412, 10.1213/01.ane.0000252458.20912.ef Rawal, 1988, Epidural versus combined spinal epidural block for cesarean section, Acta Anaesthesiol Scand, 32, 61, 10.1111/j.1399-6576.1988.tb02689.x Beaubien, 2000, Patient-controlled epidural analgesia with fentanyl-bupivacaine: influence of prior dural puncture, Reg Anesth Pain Med, 25, 254, 10.1016/S1098-7339(00)90007-5 Vartis, 1998, Potential intrathecal leakage of solutions injected into the epidural space following combined spinal epidural anaesthesia, Anaesth Intensive Care, 26, 256, 10.1177/0310057X9802600304 Thomas, 2005, Dural puncture with a 27-gauge Whitacre needle as part of a combined spinal-epidural technique does not improve labor epidural catheter function, Anesthesiology, 103, 1046, 10.1097/00000542-200511000-00019 Sezer, 2007, Efficacy of patient-controlled epidural analgesia after initiation with epidural or combined spinal-epidural analgesia, Int J Obstet Anesth, 16, 226, 10.1016/j.ijoa.2007.02.007