I'm not a doctor, but I do know that when I had an MRI and CT done here in Canada showing enlarged ventricles, they told me it was hydrocephalus. I never had ICP monitoring, so I can't say anything about that, but the headaches, vision problems, balance problems and lack of strength were all part of my symptoms. If there's increased pressure, maybe a shunt could help, but as I've said, I'm not a doctor, so I'm not sure. I think if I were you, I'd want to get a second opinion from a different neurologist and/or neurosurgeon. I have a VP shunt, but my balance is still off and I still get the headaches and balance problems. But after the shunt was in, I did have some dramatic improvement and I'm still better off now than I was before the shunt was put in. It might be worth a try to see if a neurosurgeon could do something. Jeff