To test the hypothesis that approaching the internal jugular vein with the needle bevel down would produce less injury to the vessel wall compared to the bevel up approach during central venous catheterization.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Masking
NONE
Enrollment
338
approaching the IJV with the needle bevel facing down
approaching the IJV with the needle bevel facing up
Seoul National University Hospital
Seoul, Seoul, South Korea
posterior wall puncture of internal jugular vein
Time frame: immediately after catheterization
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