Perioperative hypovolemia
Conditions
Interventions
Observation group:None
Sponsors
The First Affiliated Hospital of University of Science and Technology of China
Eligibility
Sex/Gender
All
Age
18 Years to 90 Years
Inclusion criteria
Inclusion criteria: 1. Patients undergoing elective general anesthesia surgery; 2. Patients who have given informed consent to participate in this study.
Exclusion criteria
Exclusion criteria: 1. Patients with carotid artery plaques or stenosis; 2. Patients undergoing ophthalmic, obstetric, or cardiac surgery; 3. Patients undergoing surgery at superficial locations, such as mass resection, epidermal debridement, etc.; 4. Patients planned to be transferred to the ICU or unplanned transferred to the ICU; 5. Patients with cardiac or renal insufficiency, atrial fibrillation, or paraplegia; 6. Patients who have been unable to eat for a long time before surgery. 7. Pregnant women and patients taking vasopressor drugs; 8. Patients who refuse to participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Carotid artery corrected blood flow time;Inferior vena cava variability; | — |
Countries
China
Contacts
Public ContactWei Xin
The First Affiliated Hospital of the University of Science and Technology of China
Outcome results
None listed