Correspondence enter the inferior vena cava from the iliac veins suggesting an obstructed common iliac system on that side. The right femoral route was then used successfully.We would like to suggest that when pulmonary artery catheters need to be sited via the femoral route that an image intensifier is used whenever possible. The large calibre of the inferior vena cava and the long catheter length which needs to be threaded make knotting of the catheter a real risk.
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