Presentation TCT 2013 Antegrade-transseptal, Retrograde or Trasapical Access to the Ascending Aorta Hemodynamic- a Comparision Study in a Porcine Model Presenter: Sabine Wipper, Christina Lohrenz, Oliver Ahlbrecht, Axel Larena-Avellaneda, Sebastian Carpenter, Eike Debus, Tilo K?lbel January 31, 2013