Does epidural versus combined spinal-epidural analgesia prolong labor and increase the risk of instrumental and cesarean delivery in nulliparous women?
2009
Abstract Study Objective To compare duration of labor, mode of delivery, and local anesthetic consumed in women who received labor analgesia with epidural or combined spinal-epidural technique. Design Retrospective, observational study. Setting Delivery room of a university hospital. Patients 788 nulliparous women in labor at term with cervical dilation between three and 5 cm. Interventions In Group E (epidural alone), parturients received an epidural solution of 8 mL (levobupivacaine 0.125% with fentanyl 5 μg/mL). In Group CSE (combined spinal-epidural), parturients received a spinal injection of levobupivacaine two mg with fentanyl 15 μg (total volume two mL). Then an epidural catheter was placed in all patients and connected to a patient-controlled analgesia pump (basal infusion rate of 8 mL/hr of 0.1% levobupivacaine and fentanyl two μg/mL, patient-controlled bolus dose of three mL, and lockout time of 30 min). Measurements Labor duration, mode of delivery (spontaneous vaginal vs. instrumental delivery vs. cesarean section), and local anesthetic consumed, were recorded. Main Results Labor analgesia was performed with an epidural technique in 322 patients (40.9%), and a combined spinal-epidural technique in 466 patients (59.1%), of whom 39 Group E women (12.1%) and 46 Group CSE women (9.9%) required cesarean section ( P =ns). No differences in the mode of delivery were observed between the groups. Time from analgesia to delivery (Group E: 217 ± 111 min vs. Group CSE: 213 ± 115 min; P =ns), and epidural local anesthetic consumed (Group E: 35 ± 20 mL vs. Group CSE: 33 ± 20 mL; P =ns), were similar in both groups. Conclusions No significant differences were observed between epidural and combined spinal-epidural given for labor analgesia in nulliparous women in duration of labor, mode of delivery, or local anesthetic consumed.
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