Information for the public
NICE only looked at this procedure for people for whom repeat open heart surgery isn't an option. There is not much good evidence about how well transapical transcatheter mitral valve-in-valve implantation for a failed surgically implanted mitral valve bioprosthesis works in the longer term, or how safe it is in these people. It should only be used if extra care is taken to explain the risks and extra steps are put in place to record and review what happens.
NICE is asking health professionals to send information about everyone who has the procedure and what happens to them afterwards to the National Institute for Cardiovascular Outcomes Research database (NICOR), so that the safety of the procedure and how well it works can be checked over time.
Your health professional should fully explain what is involved in having this procedure and discuss the possible benefits and risks with you. In particular, they should explain the uncertainty about the evidence on how likely it is to improve your symptoms and the possibility of severe complications. You should also be told how to find more information about the procedure. You should only be asked if you want this procedure after having this discussion. Your health professional should ask you if details of your procedure can be collected.