labor analgesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: ASA II; Aged 20 to 34 years; weight 60-85kg; Singleton pregnancy; nulliparous women; Gestational age 38-41 weeks; Willing and able to provide consent.
Exclusion criteria
Exclusion criteria: Scarred uterus; obstetric complications,including hypertensive disorders of pregnancy, HELLP, antepartum haemorrhage; History of neuropsychiatric diseases; Contraindications of spinal anesthesia; Estimated neonatal weight >=4000g.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| rate of cesarean section;labor duration; | — |
Countries
China
Contacts
Shandong Province Maternal and Child Health Care Hospital