The contractions and pain during childbirth
Conditions
Interventions
Study group:U-DDPEA group (0.U-DDPEA group (0.06% ropivacaine double-port spinal puncture epidural analgesia)
Control group:L-EP group (0.1% ropivacaine epidural analgesia)
Sponsors
Dalian Women and Children's Medical Group
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1. Nulliparous women with ASA physical status classification I–II; 2. Gestational age 37–42 weeks, singleton cephalic presentation, in spontaneous labor; 3. Cervical dilation of 2–3 cm, visual analog scale (VAS) score >=40 mm; 4. Willing to participate and have signed the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Contraindications to neuraxial anesthesia (e.g., coagulation disorders, spinal deformities) or allergy to local anesthetics; 2. Use of opioids or sedatives within 4 hours prior to delivery; 3. Presence of high-risk pregnancy conditions (e.g., preeclampsia, placenta previa); 4. BMI > 40 kg/m^2 or estimated fetal weight >= 4000 g (ultrasound indicating BPD >= 100 mm, HC >= 350 mm); 5. Refusal to participate or presence of communication difficulties, history of mental illness; 6. Accidental dural puncture during epidural insertion or delivery occurring within 1 hour after catheter placement.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Fetal position;Mode of delivery; | — |
Secondary
| Measure | Time frame |
|---|---|
| Duration of labor;Maternal and neonatal outcomes; | — |
Countries
China
Contacts
Public ContactJin Meihua
Dalian Women and Children's Medical Group
Outcome results
None listed