Epidural labor analgesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Full term (37 ~ 42 weeks), single fetus, first primiparia, maternal and family members all agreed to labor analgesia and signed informed consent. 2) Age 20-35 years, American Society of Anesthesiologists (ASA) Grade ?, height 150-170cm, body mass index <35kg/m2. 3) There are no contraindications to intraspinal anesthesia, such as coagulopathy, puncture site infection or injury, uncorrected maternal hypovolemia or hypotension, increased intracranial pressure, and severe spinal deformity. 4) The uterine opening was 2~3cm, and the obstetrician and midwife assessed that the uterine contractions were regular and in line with the conditions of natural birth. 5) No gestational diabetes mellitus, preeclampsia or eclampsia, placenta previa, no serious heart, brain, liver, kidney and other diseases, no intrauterine growth retardation or congenital growth abnormalities of the fetus.
Exclusion criteria
Exclusion criteria: 1) The subject cannot cooperate with intraspinal puncture. 2) The visual analog scale (VAS) score and the VAS score before analgesia were less than 6 points. 3) Those who dropped out of the experiment and those whose results were suspicious. 4) Puerpera who converted to cesarean section for various reasons during labor analgesia. 5) Allergies to local anesthetics or opioids. 6) Rapid cervical changes (cervical dilation =5cm) within 45 minutes of epidural analgesia. 7) Opioid analgesia before epidural analgesia.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The VAS score was evaluated by blunt acupuncture every 2 minutes within 30 minutes of epidural analgesia, and the median VAS time =3 was calculated; | — |
Secondary
| Measure | Time frame |
|---|---|
| Blood pressure, pulse, respiration, blood oxygen, Bromage score vas score; | — |
Countries
China
Contacts
The General Hospital of the PLA Northern Theater Command