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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
60
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.
the Affiliated Hospital of Yangzhou University, Yangzhou University
Yangzhou, Jiangsu, China
RECRUITINGChange in Blood pressure
Hemodynamics
Time frame: 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
Changes in the level of Cardiac output
Cardiac output
Time frame: 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 level
Intra-abdominal pressure
Time frame: 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
Vasoactive drugs
Vasoactive drug dosage
Time frame: Intraoperatively
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