Loss of blood volume
Conditions
Interventions
Gold Standard:Clinical outcomes: reactivity of patients to liquid therapy during spontaneous breathing
combined 
with 
 
of 
Sponsors
Women's Hospital School Of Medicine Zhejiang University
Eligibility
Sex/Gender
Female
Age
20 Years to 50 Years
Inclusion criteria
Inclusion criteria: Maternal for selective cesarean section;
Exclusion criteria
Exclusion criteria: All patients had electrolyte disturbance and infection, immunity, endocrine system disease before surgery, and took non-steroidal anti-inflammatory drugs and hormone drugs in recent time. Patients with central nervous system diseases, liver diseases, renal dysfunction, abnormal pulmonary function; carotid stenosis >50%; systolic blood pressure (SBP) >160 mmHg; non-sinus rhythm; heart valve disease; Left ventricular ejection fraction (EF) <50%; right ventricular dysfunction; chronic obstructive pulmonary disease (COPD); chronic pulmonary hypertension; chronic kidney disease.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Stroke volume;carotid Doppler parameters (Carotid diameter, velocity time integral, carotid blood flow, corrected flow time of the carotid artery (FTc) and peak velocity of blood flow (?Vpeak));respiratory variability of inferior vena cava; | — |
Secondary
| Measure | Time frame |
|---|---|
| occurrence of circulatory complications within 72 hours; | — |
Countries
China
Contacts
Public ContactXinzhong Chen
Women's Hospital School Of Medicine Zhejiang University
Outcome results
None listed