Hi...sorry u r still in the hospital with this issue, and many do develop this issue post op...ICP...there is no reason or rhyme as to y the body either over produces CSF or it just does not absorb it fast enuff...so a tube (shunt) is place to divert the excess fluid to an area where it can be absorbed.
I hope that helps, the link Rylansmom posted is an article on different types of shunts...they are for syrinx's, but work much the same.
We do have a few members with shunts, and I am sure one of them will post a comment too.
Good luck, I pray u feel better soon
"selma"
I don't know enough to comment other than it will redirect the fluid. It is n option to reduce pressure in my head for pseudo tumor. I know Selma has talked about shunts I will go to her page and try to find it. I am sorry your recovery is complicated by the csf flow. I will pray.