At a glance
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Early Compared With Late Neuraxial Analgesia in Nulliparous Labor Induction
In Brief
A clinical study evaluating combined spinal epidural analgesia and late analgesia (systemic) for Labor Pain and Pregnancy. Completed, enrolled 1,026 participants across 1 site.
Detailed Summary
The purpose of this study in nulliparous women undergoing induction of labor is to determine whether initiation of neuraxial analgesia compared to systemic opioid analgesia early in labor (\< 4 cm cervical dilation)affects the cesarean delivery rate.
Study Details
Timeline
Interventions
Analgesia was initiated in the early group using a standard needle-through-needle technique with intrathecal fentanyl 25 mcg and an epidural test dose of lidocaine 15 mg/ml and epinephrine 5 mcg/ml in 3ml. At the second analgesia request, the cervix was examined. Epidural analgesia was initiated with a dilute bupivicaine/fentanyl solution if the cervix was less than 4 cm. If the cervix was 4 cm or more, epidural analgesia was initiated with bupivicaine 1.25 mg/ml. If no cervical exam was performed at the second request for analgesia, the cervix was assumed to be at least 4 cm dilated. Thereafter, analgesia was maintained in all participants in the early group with patient-controlled epidural analgesia.
Analgesia was initiated in the late group with hydromorphone 1mg intramuscularly (IM) and 1 mg intravenously (IV). If the cervix was less than 4 cm at the second analgesia request, hydromorphone analgesia was repeated. Epidural analgesia was initiated with bupivicaine 1.25 mg/ml if the cervix was 4 cm or more. At the third analgesia request, epidural analgesia was initiated regardless of cervical dilation. Thereafter, epidural analgesia was maintained with patient controlled analgesia until delivery.