Hypotension after induction
Conditions
Interventions
Observation group:None
Sponsors
The First Affiliated Hospital of Zhengzhou University
Eligibility
Sex/Gender
All
Age
65 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1) Aged between 65 and 75 years old; 2) Elderly patients with American Society of Anesthesiologists (ASA) physical status level I-III who are scheduled to undergo elective surgery under general anesthesia;.
Exclusion criteria
Exclusion criteria: 1) Patients who refuse to sign informed consent; 2) Body mass index (BMI) 30 kg/m2; 3) Hypertension; 4) Coronary heart disease, heart disease (including cardiomyopathy and moderate to severe valvular disease disease); 5) Pulmonary hypertension; 6) Peripheral arterial disease or atherosclerosis; 7) Preoperative cervical vascular ultrasound abnormalities (any degree of stenosis and anatomic variation); 8) Any patient with previous neck surgery or trauma.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Carotid artery velocity-time integral variability; | — |
Secondary
| Measure | Time frame |
|---|---|
| Baseline carotid artery velocity time integral.;Carotid artery peak blood flow velocity variability rate;Mean arterial pressure.;Heart rate.;Length of stay.;ICU occupancy rate.;Systolic blood pressure;Diastolic blood pressure; | — |
Countries
China
Contacts
Public ContactTian Dandan
The First Affiliated Hospital of Zhengzhou University
Outcome results
None listed