**Acknowledgements**

I would like to thank our heart valve center of cardiac surgery department of Beijing Anzhen Hospital, Capital Medical University. Their joint efforts made our center the first unit in China to successfully carry out interventional therapy technology for all four major heart valve diseases. Thanks to president Wei Yongxiang and vice president Zhou Yujie for their consistent strong support and trust in the development of new technology in our team. Thanks to professor Meng Xu, discipline director, for his planning and design, our center began to track the latest preface technology of TAVI technology as early as 2006 and kept close academic contact with the international advanced center. Thanks for the selfless dedication and support of our center's TAVI team, including cardiac surgery, cardiology, anesthesiology, imaging, hybrid operation room, intensive care unit, ultrasound department, interventional department, etc. At the same time, I also thank TAVI teams of other heart centers in China for their support and help.
