spinal hypotension during cesarean delivery
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Women of American Society of Anesthesiologists (ASA) physical status II; 2. Aged 18-45 years; 3. Body mass index (BMI) 18.5-30 kg.m-2; 4. Women with a singleton fetus, gestational age >= 37 weeks, singleton undergoing elective cesarean section under spinal anesthesia were included; 5. Voluntary participation and signed informed consent form.
Exclusion criteria
Exclusion criteria: 1. Complicated with systemic diseases or chronic diseases (previous or new heart diseases, pregnancy-induced hypertension, preeclampsia, diabetes, cardiovascular and cerebrovascular diseases or kidney diseases); 2. Giant fetus or intrauterine growth restriction, polyhydramnios or oligohydramnios; 3. There are contraindications of spinal anesthesia; 4. Ten minutes after anesthesia, the plane did not reach T6.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| inferior vena cava index; | — |
Secondary
| Measure | Time frame |
|---|---|
| inferior vena cava maximum (expiratory) IVC diameter;inferior vena cava minimum (inspiratory) IVC diameter;fetal umbilical blood flow;Apgar score;cord blood gas analysis;spinal hypotension;Total amount of vasoactive drugs; | — |
Countries
China
Contacts
Shanghai First Maternity and Infant Hospital, school of Medicine, Tongji University