Text and Data Mining valid from 2019-01-01
Received: 26 September 2018
Accepted: 21 December 2018
First Online: 1 January 2019
Compliance with ethical standards
: Drs. Watanabe, Shirai, Tada, Araki, Naganuma, Yamamoto, and Hayashida are proctors for transfemoral-TAVI, and Dr. Tabata is a proctor of transapical TAVI for Edwards Lifesciences. Drs. Watanabe, Shirai, Naganuma, and Yamamoto are proctors of transfemoral TAVI for Medtronic. The other authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.