Labor Pain
Conditions
Interventions
Group L2-3:The dural puncture epidural procedure was carried out at the L2-3 intervertebral space.
Group L3-4:The dural puncture epidural procedure was carried out at the L3-4 intervertebral space.
Group L4-5:The dural puncture epidural procedure was carried out at the L4-5 intervertebral space.
Sponsors
Obstetrics and Gynecology Hospital of Tongji University
Eligibility
Sex/Gender
Female
Age
20 Years to 40 Years
Inclusion criteria
Inclusion criteria: Parturients requesting labor analgesia for planned vaginal delivery, aged 20 to 40 years, with ASA I–II, singleton pregnancy, cephalic presentation, primiparous, at 37 to 42 weeks of gestation, experiencing regular uterine contractions with cervical dilation of 2 to 5 cm, and reporting a baseline pain score >=6 on the Numerical Rating Scale (NRS, ranging from 0 to 10; 0 indicating no pain and 10 indicating the worst imaginable pain).
Exclusion criteria
Exclusion criteria: Participants with a body mass index (BMI) >= 40 kg/m², serious pregnancy-related complications (such as cardiac or cerebral dysfunction, hypertensive disorders of pregnancy), contraindications to neuraxial anesthesia, chronic pain conditions, use of other sedatives or analgesics before labor analgesia, or known fetal abnormalities were excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| onset time to adequate labor analgesia; | — |
Secondary
| Measure | Time frame |
|---|---|
| NRS scores for contraction pain at 1h, 3h, 6h after the initial dose, and at full cervical dilation;times of PCA;ropivacaine consumption per hour;the highest sensory block level during analgesia;sacral sensory block level during the second stage of labor;Bromage score during analgesia;times and dosage of rescue analgesia; | — |
Countries
China
Contacts
Public ContactFang Xin
Obstetrics and Gynecology Hospital of Tongji University
Outcome results
None listed