The outcome of TAVI in patients with small annulus and the comparison between intra-annular and supra-annular devices in small anulus: From the analysis of the Japanese nationwide registry
                              
 
                                  Event:
                                  
                                    ESC Congress 2019
                                  
 
                                  Topic:
                                  
                                    Treatment
                                  
 
                                  Session:
                                  
                                    Transcatheter aortic interventions