Labor Pain
Conditions
Interventions
Multi-orifice catheter group:Multi-orifice catheter
Single-orifice catheter group:Single-orifice catheter
Sponsors
Shanghai First Maternity and Infant Hospital
Eligibility
Sex/Gender
All
Age
20 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1. Pregnant woman with natural delivery, single fetus, full term, cephalic presentation, primipara; 2. Age 20 - 40 years old; 3. ASA classification level II; 4. Regular prenatal check-ups during pregnancy; 5. Regular contractions (at least once every 5 minutes); 6. Cervix dilation to 2 - 5 cm, requiring epidural labor analgesia; 7. Self-rated pain VAS >= 50mm; 8. Inform about the methods, risks and purpose of this study. All participants are required to sign the informed consent form and voluntarily participate in this study.
Exclusion criteria
Exclusion criteria: 1.BMI>40 kg/m^2; 2. During pregnancy, there are severe comorbidities or other related complications such as heart disease, severe respiratory disorders, intrahepatic cholestasis of pregnancy, or severe preeclampsia; 3. During pregnancy, there is severe malnutrition, hypoproteinemia, severe or extremely severe anemia; 4. There are obstetric indications for cesarean section, including placenta previa, placental abruption, umbilical cord prolapse, abnormal fetal position, twin or multiple pregnancies; 5. There are contraindications for spinal puncture such as local infection, abnormal coagulation function, spinal space occupying lesions or spinal deformities; 6. Severe vulvar deformities or reproductive tract infections.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Ropivacaine dosage; | — |
Secondary
| Measure | Time frame |
|---|---|
| Sensory blockade ;Motor strength ; | — |
Countries
China
Contacts
Public ContactQian Li
Shanghai First Maternity and Infant Hospital
Outcome results
None listed