Underweight is associated with unfavourable short- and longterm outcomes after MitraClip therapy: a body mass index derived subgroup analysis of the German Transcatheter Mitral Valve Interventions (
                              
 
                                  Event:
                                  
                                    ESC Congress 2019
                                  
 
                                  Topic:
                                  
                                    Mitral Valve Intervention
                                  
 
                                  Session:
                                  
                                    Mitral valve intervention 2