Received: 6 July 2021
Accepted: 29 August 2021
First Online: 8 September 2021
: The study was conducted according to the guidelines of the Declaration of Helsinki, and approved by the Institutional Review Board of Ethics Committee of the Medical University of Vienna Ethics committee protocol number: 1414/2019). Requirement for individual patient consent was waived.
: Not applicable.
: Zimpfer has received grants from Edwards Lifesciences, Medtronic, Abbott and Berlin Heart. All authors have reported that they have no relationships relevant to the content. Edwards Lifesciences, Medtronic, Abbott and Berlin Heart have no role in the design of the study; the collection or analyses of the data; in the interpretation and the decision to publish the results.