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The Effects of Intermittent Epidural Bolus on Fever During Labor Analgesia

Not Applicable
Conditions
Labor Pain
Signs and Symptoms
Pain
Pathological Conditions, Signs and Symptoms
Neurologic Manifestations
Interventions
Procedure: Epidural analgesia
Procedure: Combined spinal-epidural analgesia
Procedure: Continuous epidural infusion
Procedure: Intermittent epidural bolus
Registration Number
NCT01708668
Lead Sponsor
ShanWu Feng, M.D.
Brief Summary

Epidural analgesia is associated with maternal intra-partum fever during labor. Intermittent epidural injections appear to reduce the incidence of maternal intra-partum fever compared to continuous epidural infusion during labor analgesia. However, the optimal combination of bolus volume and administrating interval has not yet been compared. The purpose of this prospective, randomized, double-blind trial was to determine how intermittent epidural bolus reduced the incidence of maternal intra-partum fever compared with continuous epidural infusion during labor.

Detailed Description

Not available

Recruitment & Eligibility

Status
UNKNOWN
Sex
Female
Target Recruitment
12000
Inclusion Criteria
  • Nulliparous women
  • Required labor analgesia
  • Chinese
  • Spontaneous labor
Exclusion Criteria
  • Contraindications for epidural analgesia
  • Allergic to opioids and/or local anesthetics
  • Failed to performing epidural catheterization
  • Organic dysfunction
  • Those who were not willing to or could not finish the whole study at any time
  • Using or used in the past 14 days of the monoamine oxidase inhibitors
  • Alcohol addictive or narcotic dependent patients
  • Subjects with a nonvertex presentation or scheduled induction of labor
  • Twin gestation and breech presentation

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
1Epidural analgesiaEpidural analgesia (EA) with continuous epidural infusion(CEI)
2Continuous epidural infusionCombined spinal-epidural analgesia (CSEA) with continuous epidural infusion(CEI)
3Epidural analgesiaEpidural analgesia (EA) with intermittent epidural bolus (IEB, 2.5 mL bolused every 15 minutes)
6Combined spinal-epidural analgesiaCombined spinal-epidural analgesia (CSEA) with intermittent epidural bolus (IEB, 2.5 mL bolused every 15 minutes)
8Combined spinal-epidural analgesiaCombined spinal-epidural analgesia (CSEA) with intermittent epidural bolus (IEB, 10ml bolused every 60 minutes)
1Continuous epidural infusionEpidural analgesia (EA) with continuous epidural infusion(CEI)
3Intermittent epidural bolusEpidural analgesia (EA) with intermittent epidural bolus (IEB, 2.5 mL bolused every 15 minutes)
7Combined spinal-epidural analgesiaCombined spinal-epidural analgesia (CSEA) with intermittent epidural bolus (IEB, 5ml bolused every 30 minutes)
7Intermittent epidural bolusCombined spinal-epidural analgesia (CSEA) with intermittent epidural bolus (IEB, 5ml bolused every 30 minutes)
6Intermittent epidural bolusCombined spinal-epidural analgesia (CSEA) with intermittent epidural bolus (IEB, 2.5 mL bolused every 15 minutes)
2Combined spinal-epidural analgesiaCombined spinal-epidural analgesia (CSEA) with continuous epidural infusion(CEI)
4Epidural analgesiaEpidural analgesia (EA) with intermittent epidural bolus (IEB, 5ml bolused every 30 minutes)
5Epidural analgesiaEpidural analgesia (EA) with intermittent epidural bolus (IEB, 10ml bolused every 60 minutes)
5Intermittent epidural bolusEpidural analgesia (EA) with intermittent epidural bolus (IEB, 10ml bolused every 60 minutes)
8Intermittent epidural bolusCombined spinal-epidural analgesia (CSEA) with intermittent epidural bolus (IEB, 10ml bolused every 60 minutes)
4Intermittent epidural bolusEpidural analgesia (EA) with intermittent epidural bolus (IEB, 5ml bolused every 30 minutes)
Primary Outcome Measures
NameTimeMethod
Maternal oral and tympanic temperatureAt time of initiation of analgesia and hourly thereafter until 4 hours postpartum (approximately 12 hours)
Secondary Outcome Measures
NameTimeMethod
Maternal serum tumor necrosis factor-αAt time of placental delivery and 3, 6 and 12 hours later
Cord serum tumor necrosis factor-αAt time of placental delivery
Maternal serum Interleukin-1βAt time of placental delivery and 3, 6 and 12 hours later
Cord serum Interleukin-1βAt time of placental delivery
Maternal serum Interleukin-6At time of placental delivery and 3, 6 and 12 hours later
Cord serum Interleukin-6At time of placental delivery
Maternal serum Interleukin-10At time of placental delivery and 3, 6 and 12 hours later
Cord serum Interleukin-10At time of placental delivery
Regression and correlation analyses between maternal and cord serum cytokinesAt twelve hours postpartum
Placental routine pathologic examinationAt time of placental delivery
Maternal and cord blood gase analysisAt time of placental delivery
Maternal modified Bromage scale and visual analogue scaleAt time of initiation of analgesia and hourly thereafter until 2 hours postpartum (approximately 10 hours)
Rescue boluses, n of rescue boluses, and the consumption of the ropivacaine/sufentanil mixtureAt two hours postpartum
Rates of cesarean delivery and instrument-assisted deliveryAt time of placental delivery
Indications of cesarean deliveryInitiation of analgesia to placental delivery (approximately 8 hours)
Duration of analgesiaInitiation of analgesia to 2 h postpartum (approximately 10 hours)
Durations of labor stagesFrom the beginning of regular contraction of uterus to the end of the labor (approximately 12 hours)
Maternal satisfaction with analgesiaAt two hours postpartum
Neonatal antibiotic treatmentOne week after baby was born
Maternal heart rate, respiratory rate, and blood pressureAt time of initiation of analgesia and hourly thereafter until 4 hours postpartum (approximately 12 hours)
Low back pain at 3 months after vaginal deliveryAt the third month after vaginal delivery
Breastfeeding success at 6 weeks after vaginal deliveryAt the sixth week after successful delivery
Maternal group B streptococcus (GBS) colonizationAt time of initiation of analgesia
Number of vaginal examinations, duration from rupture of the membranes to delivery, mode of membranes rupturedFrom initiation of analgesia to delivery (approximately 8 hours)
Neonatal weightAt delivery
Uterine artery, umbilical artery and vein, fetus middle cerebral artery by ultrasoundAt time of initiation of analgesia and hourly thereafter until delivery (approximately 8 hours)
Maternal serum epinephrine, norepinephrine, insulin, glucagon, corticotropin releasing hormone, adrenocorticotropic hormone, cortisol, blood glucose, oxytocin, prostaglandin E2 and prostaglandin F2 alphaAt time of initiation of analgesia and hourly thereafter until 4 hours postpartum (approximately 12 hours)
Maternal postpartum depressionAt time of delivery and daily thereafter until 1 year postpartum (approximately 1 year)
Neonatal Apgar scaleAt the first and fifth minutes after baby was born
Highest thoracic sensory level to alcoholAt three hours after initiation of analgesia
Uterine contractionAt time of initiation of analgesia and hourly thereafter until 4 hours postpartum (approximately 12 hours)
Neonatal rectal temperatureAt delivery, 30 min after delivery, and 1 h after delivery
Use of oxytocin after analgesiaAt twenty-four hours postpartum
Incidence of maternal side effectsInitiation of analgesia to 2 hour postpartum (approximately 10 hours)
Neonatal Neurologic and Adaptive Capacity ScoreAt 30 min, 2 h, and 24 h after baby was born
Maximal oxytocin doseAt twenty-four hours postpartum
Neonatal sepsis evaluationAt 30 min after baby was born
Fetal heart rateFrom initiation of analgesia to delivery (approximately 8 hours)

Trial Locations

Locations (1)

Nanjing Maternal and Child Health Care Hospital Affiliated to Nanjing Medical University

🇨🇳

Nanjing, Jiangsu, China

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