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O Wenker. Questions and Answers - Part 15. The Internet Journal of Anesthesiology. 1999 Volume 4 Number 3.
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How are the 2 typical approaches for internal jugular vein cannulation
The chest X-ray shows a knotted pulmonary artery catheter in the right
Cardiac surgery was necessary to remove this PA catheter (shown in image below)
The knotted pulmonary catheter after removal from the right ventricle:
1. The high or anterior approach (blue mark in image)
2. The low or central approach (red mark in image)