Hi Sam,
I have LP (lumbar-peritoneal) shunt implanted in 1988 3 months after my first AN surgery. It is still there but it is deemed by doctors to be no longer functioning because of the time passed. The doctor said that he has never seen a shunt that lasts longer than 10 years. It is good news, of course, because this means I am no longer shunt-dependent. I only needed the shunt for a few months while I healed but nobody wanted to risk taking it out. This is a very easy procedure, no big deal. It is also the easiest kind of shunt to have. It is invisible, not painful or bothersome in any way.
Another shunt is VP (ventricular-peritoneal). It goes from head to the stomach. It is a little more difficult to implant. That's the limit of my knowledge about it, may be somebody who has it can chime in.
Either way, no matter which shunt your doctor recommends, it is a fairly uncomplicated procedure that leads to absolutely discomfort in the future. I would not worry about it. Good luck!
Eve