Hypotension after induction of general anesthesia
Conditions
Interventions
Case series:None
Sponsors
The First Affiliated Hospital of Nanchang University
Eligibility
Sex/Gender
All
Age
65 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. ASA II-III; 2. Aged 65 to 75 years; 3. BMI: 15-30kg/m^2; 4. Patients undergoing elective gastrointestinal surgery under general anesthesia; 5. Retain spontaneous breathing, without sedation and disturbance of consciousness.
Exclusion criteria
Exclusion criteria: 1. Patients with severe cardiopulmonary disease before surgery; 2. Patients with arrhythmia; 3. A history of neck trauma or surgery; 4. Intra-abdominal hypertension; 5. Combined with other serious peripheral vascular diseases; 6. Ultrasound examination of inferior vena cava and carotid artery showed abnormalities such as stenosis and malformation.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Carotid corrected blood flow time;Carotid artery respiratory variations of peak blood flow velocity;inferior vena cava collapse rate;Maximum diameter of inferior vena cava;blood pressure;Heart rate;pulse pressure variation; | — |
Countries
China
Contacts
Public ContactLuo Foquan
The First Affiliated Hospital of Nanchang University
Outcome results
None listed