pain of labor
Conditions
Interventions
Low speed group:120ml/h (low speed)
Medium speed group:240ml/h (medium speed)
High speed group:360ml/h (high speed)
Sponsors
Shanghai First Maternity and Infant Hospital
Eligibility
Sex/Gender
Female
Age
20 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1. American Society of Anesthesiologists (ASA) Class I to II healthy full-term primipara, aged 20 to 40 years; 2. Single pregnancy, cephalic position; 3. Regular contractions, cervical dilation of 2~5cm; 4. Report a baseline pain score of >5 on the Pain Numerical Rating Scale (NRS).
Exclusion criteria
Exclusion criteria: 1. Body mass index (BMI) >35kg/m^2; 2. Complicated with cardiac and brain dysfunction; 3. Preeclampsia, history of drug abuse; 4. Medication for chronic pain, contraindications for intraspinal puncture; 5. Conditions that increase the risk of caesarean section (i.e. placenta previa, uterine abnormalities, or surgical history), fetal abnormalities. Patients were also excluded if delivery occurred within 1 hour of intraperitoneal analgesia.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the highest upper sensory block level to ice during the study period; | — |
Secondary
| Measure | Time frame |
|---|---|
| the presence of a sensory block level to ice =T4 for a patient at any time;hourly sensory block levels;hourly degree of motor block;hourly pain scores ;the number of patient controlled epidural analgesia demand boluses;ropivacaine consumption per hour;maternal satisfactory of labor analgesia;incidence of hypotension;incidence of other side effects; | — |
Countries
China
Contacts
Public ContactXu Zhendong
Shanghai First Maternity and Infant Hospital
Outcome results
None listed