intraoperative hypotension
Conditions
Interventions
High intra-abdominal pressure group 1:Norepinephrine infusion rate (0.0µg/kg/min)
High intra-abdominal pressure group 2:Norepinephrine infusion rate (0.025µg/kg/min)
High intra-abdominal pressure group 3:Norepinephrine infusion rate (0.05µg/kg/min)
High intra-abdominal pressure group 4:Norepinephrine infusion rate (0.075µg/kg/min)
High intra-abdominal pressure group 5:Norepinephrine infusion rate (0.1µg/kg/min)
non high intra-abdominal pressure group1:Norepinephrine infusion rate (0.0µg/kg/min)
non high intra-abdominal pressure group2:Norepinephrine infusion rate (0.025µg/kg/min)
non high intra-abdominal pressure group3:Norepinephrine infusion rate (0.05µg/kg/min)
non high intra-abdominal pressure group4:Norepinephrine infusion rate (0.075µg/kg/min)
non high intra-abdominal pressure group5:Norepinephrine infusion rate (0.1µg/kg/min)
Sponsors
International Peace Maternal and Child Health Hospital
Eligibility
Sex/Gender
Female
Age
20 Years to 45 Years
Inclusion criteria
Inclusion criteria: Women aged 20-45 years, with a height of 155-170 cm, ASA grade II, full-term (gestational age >37 weeks), singleton cephalic presentation, scheduled for elective cesarean section.
Exclusion criteria
Exclusion criteria: Emergency cesarean section, placental abruption, twin pregnancy, pathological obesity (BMI>37.5), concomitant obvious cardiovascular disease, contraindication to spinal anesthesia, preeclampsia and gestational hypertension, allergy to ropivacaine, and refusal to participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Systolic Blood Pressure;Norepinephrine half-maximal and effective infusion rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| intra-abdominal pressure;Norepinephrine dosage; | — |
Countries
China
Contacts
Public ContactMa Rui
International Peace Maternal and Child Health Hospital Anesthesiology Department
Outcome results
None listed