Registry to Evaluate the Impact of a Valve Coordinator on Aortic Stenosis / TAVI Outcome - (German Pilot)

"A THV coordinator will be responsible for communication with the patients and the caregivers as well as for monitoring medical documentation and treatment pathways. The registry will consist of 3 phases:~* Determination of the status quo~* Dedicated reflection and training followed by implementation of tailored changes~* Determination of the effect"