The study is designed to evaluate and validate impact factors to success and complication using ultrasound guided short-axis out-of-plane dynamic approach, and validate the impaction.
The study including two phase: observational phase and validation phase. In observational phase, factors relative to success catheterization without posterior puncture and success in first attempt are evaluated. In validation phase, patients are randomized into different depth group with or without injection of saline. Success without posterior wall puncture, success in first attempt and overall, catheterization time are compared between groups.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
TRIPLE
Enrollment
60
deepen radial arterial depth by injection of saline to more than deep cutoff point relative to result.
Peking Union Medical College Hospital
Beijing, China
success without posterior wall puncture
success to puncture and catheterize of radial artery, without posterior wall puncture.
Time frame: Through study completion,an average of 5 minutes
success in first attempt
success puncture and catheterization in first attempt
Time frame: Through study completion,an average of 5 minutes
success overall
success catheterization with the maximum of 10 minutes
Time frame: Through study completion,an average of 5 minutes
time needed to catheterization
time required for successful puncturing and catheterization with the maximum of 10 minutes
Time frame: Through study completion,an average of 5 minutes
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