One would think that IVC filters would be a contraindication to insertion of a 25 FR. Biomedicus venous cannula from the femoral vein into the SVC. My initial strategy was to utilize fluoroscopy, identify the IVC filter, and leave the venous cannula right at the level of the filter. Then I would insert another venous cannula into the SVC. I decided to challenge this concept even further. Utilizing fluoroscopy, I passed the wire through the filter and thereafter passed the 25 Fr. cannula through the filter as well into the SVC. I have performed this maneuver on 6 separate occasions, with different types of IVC filters. I have not encountered any difficulties or complications. It leads one to believe how effective these filters really are!!!