hypotension after anesthesia
Conditions
Interventions
Gold Standard:Blood pressure meter
and 
Sponsors
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: (1) Patients, conforming to ASA I to III, scheduled for elective surgery under general anesthesia at the Union Hospital of Huazhong University of Science and Technology were recruited from December 2017 and from January to February 2018; (2) Adult patients; (3) Sentient spontaneously breathing patients.
Exclusion criteria
Exclusion criteria: (1) Patients with major peripheral vascular disease, severe vascular disease, unstable angina or ejection fraction less than 40%; (2) Patients with respiratory distress, increased intraabdominal pressure,anticipated dicult airway or mental incompetence; (3) Patients with autonomic nervous system disorders; (4) Patients with implanted pacemaker/cardioverter; (5) Patients who have currently taken angiotensin-converting enzyme inhibi- tor or angiotensin receptor blocker were also excluded; (6) Pregnant women; (7) Emergency surgical patients; (8) Patients with suddenvital-sign changes before anesthesia.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Maximum inferior vena cava area;Minimum inferior vena cava area;Maximum subclavian vein area;Minimum subclavian vein area;Mean artery pressure;Minimum mean artery pressure;Minimum heart rate;Collapsibility index of inferior vena cava diameter;Collapsibility index of inferior vena cava area;Collapsibility index of subclavian vein diameter;Collapsibility index of subclavian vein area;Acurracy;SPE, SEN; | — |
Secondary
| Measure | Time frame |
|---|---|
| Maximum inferior vena cava diameter;Minimum inferior vena cava diameter;Maximum subclavian vein diameter;blood pressure; | — |
Countries
China
Contacts
Public ContactYou Shang
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Outcome results
None listed