prediction of hypotension
Conditions
Interventions
Gold Standard:Clinical outcome: Hypotension was defined by a 30% reduction in the SBP or 20% reduction in the MAP from baseline or an absolute SBP of less than 90 mm Hg and MAP of less than 65 mm Hg.
flow 
and 
arteryrespiratory 
variations 
of 
blood 
Sponsors
Department of Anesthesiology, Affiliated Hospital of North Sichuan Medical College
Eligibility
Sex/Gender
All
Age
65 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. ASA PS I or II; 2. Adult patients (between 65 and 75 years); 3. BMI18-30kg/m2; 4. Undergoing any elective surgery under general anesthesia; 5. Carotid ultrasound detection of blood vessels without plaque stenosis and malformations.
Exclusion criteria
Exclusion criteria: 1. Severe arrhythmia; 2. Hypertension; 3. History of peripheral arterial diseases or atherosclerosis; 4. Heart disease, pulmonary hypertension, EF < 50%; 5. History of any previous neck surgery or trauma.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Carotid corrected blood flow time;Carotid artery respiratory variations of peak blood flow velocity;Non-invasive blood pressure;Heart rate;SEN, SPE, ACC, AUC of ROC, PPV, NPV; | — |
Countries
China
Contacts
Public ContactFaping Tu
Department of Anesthesiology,Affiliated Hospital of North Sichuan Medical College
Outcome results
None listed