I looked this up on Google, but the name appears to be LDL apheresis, and there are several pieces about it. It appears to be a similar freatment to dialysis, but with different materials in the process.
I could not comment on it, obviously it is a very long term commitment, and only you can decide. It would be nice to know someone who has experienced it, but I suspect it is too new for many to have taken it. It Is also said to be very expensive, but if the NHS will pay, that does not affect you.