A bit off topic - I had a (benign!) heart murmur a couple of years ago. Don't know if it was one of those MVP things - not heard that phrase and I'm definitely not lean/tall/thin either - but it turns out the flow was so strong and high (although BP
NOT high) that it was spilling over one of the valves, which was making the noise.
Had a scan - queueing up along with a load of preggie ladies - and actually saw my heart working in real time - including seeing the "overspill" causing the murmur.
One of the most miraculous things I've ever seen...............
