None listed
Conditions
Interventions
Group 1:PIEB bolus: 7 mL
Group 2:PIEB bolus: 8 mL
Group 3:PIEB bolus: 9 mL
Group 4:PIEB bolus: 10 mL
Group 5:PIEB bolus: 11 mL
Group 6:PIEB bolus: 12 mL
Sponsors
Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine
Eligibility
Sex/Gender
Female
Age
20 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1. ASA II to III, 37-42 weeks of gestation; 2. 20 years old =5 (NRS 0 to 10, where 0= no pain and 10= the most severe pain imaginable) are eligible for epidural analgesia.
Exclusion criteria
Exclusion criteria: 1. Morbid obesity; 2. Complications of pregnancy such as gestational diabetes mellitus, gestational hypertension, gestational heart disease, preeclampsia, etc.; 3. Drug abuse history, spinal anesthesia contraindications (such as coagulopathy, local anesthesia drug allergy, etc.); 4. The presence of conditions that increase the risk of caesarean section (such as placenta previa, uterine malformations, uterine surgery history); 5. Received opiates or sedatives 4 hours before labor pain relief; 6. Known fetal abnormalities; 7. Patients with epidural needle accident dura puncture, no cerebrospinal fluid reflux after DPE, pain score > 3 within 20 minutes after the first epidural dose, or completion of labor within 1 hour after the start of epidural labor analgesia will also be excluded from the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| effective labor analgesia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Numerical Rating Score for pain;sensory block level;Bromage score;adverse events; | — |
Countries
China
Contacts
Public ContactSong Yujie
Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine
Outcome results
None listed