Hypotension
Conditions
Interventions
Group S1:Norepinephrine infusion at a rate of 0.025ug /kg/min
Group S2:Norepinephrine infusion at a rate of 0.05ug /kg/min
Group S3?:Norepinephrine infusion at rate of 0.075ug /kg/min
Group S4:Norepinephrine infusion at a rate of 0.1ug /kg/min
Group S5:Norepinephrine infusion at rate of 0.125ug /kg/min
Group T1:Norepinephrine infusion at rate of 0.025ug /kg/min
Group T2:Norepinephrine infusion at rate of 0.05ug /kg/min
Group T3:Norepinephrine infusion at rate of 0.075ug /kg/min
Group T4:Norepinephrine infusion at rate of 0.01ug /kg/min
Group T5?:Norepinephrine infusion at a rate of 0.125ug /kg/min
Sponsors
West China Second Hospital of Sichuan University
Eligibility
Sex/Gender
Female
Age
20 Years to 35 Years
Inclusion criteria
Inclusion criteria: Full-term, singleton pregnant women and parturients of twin pregnancy with a gestational age greater than 32 weeks scheduled for elective cesarean delivery were enrolled in the study.
Exclusion criteria
Exclusion criteria: 1. The maternal has serious cardiovascular and cerebrovascular diseases; 2. Pregnancy induced hypertension, diabetes mellitus, known fetal abnormalities; 3. Patients with contraindications to spinal anesthesia were excluded from the study. 4. Patients younger than 20 years old or older than 35 years old are also included; 5. Patients with high or low height ( 180cm); 5. Patients with BMI > 30 kg / m2 and ASA grade >= 3; 6. Parturients with single gestational age less than 36 weeks and systolic blood pressure < 100 mmHg.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Blood pressure; | — |
Countries
China
Contacts
Public ContactHuang Han
West China Second Hospital of Sichuan University
Outcome results
None listed