labor pain
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Term (37-41 gestational weeks); 2. Singleton pregnancy; 3. Aged 20-36 years old; 4. BMI 21.0-35.0 kg/m2; 5. ASA grade I or II.
Exclusion criteria
Exclusion criteria: 1. Contraindications of spinal anesthesia; 2. Known fetal malposition or abnormal birth canal conditions; 3. Known fetal abnormalities; 4. Pregnancy complications (high-risk pregnancies such as severe preeclampsia, placental abruption and placenta previa); 5. History of chronic pain; 6. Prenatal use of psychotropic drugs or poor cooperation with mental disorders; 7. Allergic history to opioid, ester or amide local anesthetics.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of breakthrough pain; | — |
Secondary
| Measure | Time frame |
|---|---|
| Analgesia onset time;VAS score;Bromage score;FHR;MAP;Frequency of contractions;VAS score at 15min after analgesia;Rate of cervical dilation;Maternal satisfaction;Duration of labor;delivery mode;Neonatal outcome;adverse reaction; | — |
Countries
China
Contacts
Maternal and Child Health Hospital of Anhui Province