Labor pain
Conditions
Interventions
Experimental group1:35min interval time
Experimental group2:40min interval time
Experimental group3:45min interval time
Experimental group4:50min interval time
Experimental group5:55min interval time
Sponsors
Women and Children's Hospital Affiliated to Jiaxing University
Eligibility
Sex/Gender
Female
Age
20 Years to 37 Years
Inclusion criteria
Inclusion criteria: 1.Healthy singleton pregnancies; 2.Gestational age >= 37 weeks; 3.American Society of Anesthesiologists Physical Status ii; 4.Spontaneous onset of labor; 5.Latent phase of labor with cervical dilation of 2 - 5 cm; 6.Painful contractions requiring labor epidural analgesia.
Exclusion criteria
Exclusion criteria: 1.Preeclampsia or hypertension; 2.Preexisting or gestational diabetes; 3.BMI > 35 kg/m^2; 4.Any contraindication to regional anesthesia; 5.Allergy or hypersensitivity to ropivacaine or sufentanil; 6.If they had received opioids or sedatives within 4 hours preceding epidural insertion; 7.Labor duration < 60min.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Effective analgesic; | — |
Secondary
| Measure | Time frame |
|---|---|
| Characterize of epidural block;Neonatal outcomes; | — |
Countries
China
Contacts
Public ContactXiao Fei
Women and Children's Hospital Affiliated to Jiaxing University
Outcome results
None listed