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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: J Am Coll Cardiol. 2014 May 7;63(25 0 0):2795–2804. doi: 10.1016/j.jacc.2014.04.015

Figure 1. Schematic depiction of caval-aortic access.

Figure 1

(A) A catheter directs a transfemoral vein guidewire from the inferior vena cava towards a snare target positioned in the adjoining abdominal aorta. (B) A catheter is advanced over the guidewire into the aorta and used to introduce a more rigid guidewire. (C) The valve introducer sheath is advanced from the vena cava into the aorta. (D) After completion of TAVR, the aorto-caval access tract is closed with a nitinol occluder.