4 Cities for Assessing CAlcification PRognostic Impact After TAVI
4 Cities for Assessing CAlcification PRognostic Impact After TAVI
Transcatheter Aortic Valve Implantation (TAVI) indications are progressing rapidly as an
 alternative to conventional surgery for aortic stenosis cure. Despite a high rate of
 procedural success, some patients do not benefit from the procedure. The investigators
 hypothesis is that aortic stiffness may be of major prognostic significance after stenosis
 relief.

 The aim of this study is to test the prognostic impact of aortic stiffness estimated by the
 volume of calcifications of the thoracic aorta on the CT-scan performed systematically before
 the procedure. This prognostic value will be assessed in 4 independent cohorts issued from 4
 french cities (Lyon, Rouen, Paris, Clermont-Ferrand).
Inclusion Criteria:

 -  Age > 18

 -  Patient who underwent a transcatheter aortic valve implantation

 -  Patient who provided informed, written consent to participate to FRANCE TAVI study

 -  Patient for whom a CT-Scan performed before TAVI procedure is available.

 Exclusion Criteria:

 -  none