None
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.Patients with gastrointestinal surgery in the Department of general surgery, Shanghai General hospital. 2.The patients were aged 18-80 years.
Exclusion criteria
Exclusion criteria: 1. The patient has severe vascular lesions (such as arterial obstruction and vascular replacement). 2. The patient has severe cardiac valve disease (such as aortic regurgitation or regurgitation). 3. The patient has severe arrhythmia (such as atrial fibrillation). 4. Emergency surgery. 5. Patients with incomplete skin at the sensor placement site (patients who cannot use noninvasive cardiac output monitoring). 6. The patient has other diseases that may affect cardiac output (such as overweight or massive ascites > 10% body weight). 7. Patients who did not sign informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cardiac output; | — |
Secondary
| Measure | Time frame |
|---|---|
| Stroke volume;Stroke variability;Peripheral vascular resistance; | — |
Countries
China
Contacts
Shanghai General Hospital