Journal of the Louisiana State Medical Society
Figure 3: Illustration of a proposed mechanism for migration of the shunt catheter with iatrogenic perforation of a vein during the tunneling of the catheter (top left) and subsequent migration of a portion of the catheter in the lumen of the vessel secondary to negative inspiratory pressure and blood flow (top right). A second proposed mechanism for intraluminal migration of the shunt catheter is via a portion of the catheter lying next to the vessel. After a period of time (bottom left), there is erosion through the vessel wall and movement of the catheter through the vein as a result of negative pressure and venous return (bottom right).
24 J La State Med Soc VOL 166 January/February 2014
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