Delivery?Labor analgesia
Conditions
Interventions
Group 1:3 ml of 1.5% lidocaine
Group 2:5 ml of 1% lidocaine
Group 3:10 ml of 0.5% lidocaine
Sponsors
The 2nd Affiliated Hospital of Chongqing Medical University
Eligibility
Sex/Gender
Female
Age
20 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1. Singleton primipara; 2. Aged 20-40 years; 3. Pre-assessed as eligible for vaginal delivery; 4. Height between 155-170 cm, BMI between 18.5-35 kg/m²; 5. Cervical dilation between 2-6 cm; 6. No significant history of cardiopulmonary disease; 7. No history of surgical trauma; 8. American Society of Anesthesiologists (ASA) Grades I-III; 9. Patients are willing to participate and be able to understand and sign an informed consent form;
Exclusion criteria
Exclusion criteria: 1. Contraindications for spinal anesthesia, such as coagulopathy or ongoing anticoagulant therapy, infection at the puncture site, bacteremia, epidural abscess, increased intracranial pressure, severe hypovolemia; 2. Physical or mental disabilities, such as scoliosis and depression, alcohol or drug abuse; 3. Major organ diseases, such as hyperthyroidism, cardiopulmonary diseases, diabetes treated with insulin, and neuromuscular diseases; 4. Numerical Pain Rating Scale (NPRS) < 5; 5. Refusal to participate in the study;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The incidence of motor block; | — |
Secondary
| Measure | Time frame |
|---|---|
| Maternal Pulse oximetry (SPO2);Sensory block level;Maternal blood pressure;First stage of labor;frequency and intensity of uterine contractions;Pain scores;Time of analgesia onset;Maternal heart rate;Second stage of labor;neonatal Apgar score;fetal heart rate;Patient satisfaction score;Incidence of complications related to labor analges; | — |
Countries
China
Contacts
Public ContactChen Bing
The 2nd Affiliated Hospital of Chongqing Medical University
Outcome results
None listed