Asana Adjustment
Conditions
Keywords
Trendelenburg position, Prone Position, Hemodynamics, Intra-abdominal pressure, Cardiac output
Brief summary
The prone position is a special position often used for spinal surgery. As a special position of general anesthesia, after induction of general anesthesia, severe hemodynamic fluctuations often occur when the supine position is changed to the prone position, which seriously affects the patient's circulatory and respiratory functions.
Interventions
BEHAVIORALAsana adjustment
Adjust the operating table to 15° head height and foot low in advance. The patient is then slowly turned over from the transport table to the operating table and completed in the prone position. After the patient's hemodynamic stability is smooth, adjust the operating table to the level.
Sponsors
Zhuan Zhang
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No
Inclusion criteria
1. Prone spine surgery after general anesthesia is planned. 2. Age 18\ 85 years old. 3. ASA grade I or II. 4. BMI18.3-30kg/m2
Exclusion criteria
1. Unstable angina or myocardial infarction, coronary heart disease, congestive heart failure, structural heart disease, arrhythmia within 6 months; 2. Increased intracranial pressure and central nervous system injury or disease; 3. Severe hypertension 4. Patients with other diseases affecting their own circulatory system. 5. Have or have a history of severe mental disorders; 6. Bleeding volume \>600ml or intraoperative blood transfusion treatment. 7. Severe liver and kidney insufficiency
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in Blood pressure | Preoperatively,5 minute after anesthesia induction,Immediately before the prone position, Immediately after the prone position,1 minute after prone position, 3 minute after prone position,10 minute after prone position,Half an hour after prone position | Hemodynamics |
| Changes in the level of Cardiac output | Preoperatively,5 minute after anesthesia induction,Immediately before the prone position, Immediately after the prone position,1 minute after prone position, 3 minute after prone position,10 minute after prone position,Half an hour after prone position | Cardiac output |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Intra-abdominal pressure level | Preoperatively,5 minute after anesthesia induction,Immediately before the prone position, Immediately after the prone position,1 minute after prone position, 3 minute after prone position,10 minute after prone position,Half an hour after prone position | Intra-abdominal pressure |
| Vasoactive drugs | Intraoperatively | Vasoactive drug dosage |
Countries
China
Contacts
Primary ContactZhuan Zhang
Outcome results
None listed