Something that has been on my mind a lot is the fact that since about a year or so I know that there’s a gradient over my St Jude 25mm that went in about four years ago. I had my surgery done in the UK but have since relocated to the Netherlands. This is where the consultant found that a) there’s a paravalvular leak and b) it is causing a gradient over the valve. I can still do all sports that I want (except maybe kickboxing) so no limits on straining the heart there which is a comforting thought but still. I have read this type of leak is common but I was just wondering if anyone else here has had this type of leak and what your experiences are with this phenomenon. Even though I have been a Mech-valver for almost four years now, I still get stressed out from time to time thinking about the possible consequences of things just not working they way they should such as this leak.