Procedural complications: coronary obstruction

TAVI within failing surgical aortic bioprostheses

There is an elevated risk of coronary obstruction occurring in TAV-in-SAV procedures when compared to TAVI for native aortic stenosis. This section explores the nature of this complication, looking at the anatomy and resulting conditions such as haemodynamic instability and ventricular arrhythmia. What is the mechanism for coronary obstruction? What factors need to be considered in order to avoid this complication? Can the architecture of the surgical bioprosthesis itself increase the risk of coronary obstructions?  How to choose the best device? Learn more here...