Comparison of Axillary Versus Subclavian Vein Strategies for Central Venous Catheterization Under Continuous Ultrasound Guidance

The first two attempts at central venous catheterization will be performed via the distal approach (axillary vein). The third and fourth attempts at central venous catheterization will be performed by the medial approach (subclavian vein). The same puncture material/devices will be used in both arms of the study.

The first two attempts at central venous catheterization will be performed by the medial approach (subclavian vein). The third and fourth attempts at central venous catheterization will be performed by the distal approach (axillary vein). The same puncture material/devices will be used in both arms of the study.