Conflicts of Interest Dr James Cockburn reports he is a proctor/advisor for Boston and Medtronic. Dr Sandeep Arunothayaraj reports he is a proctor for Edwards Lifesciences. Prof David Hildick-Smith reports he is a proctor/advisor for Boston, Edwards Lifesciences, Medtronic, and Abbott. The other authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request.
