Ok, I'm going to try and explain what the attending neurosurgeon told us this evening. Any doctors, nurses (or spouses thereof) please excuse my ignorance.
She definitely has hydrocephalus. So hydrocephalus basically means one of the ventricles is enlarged with fluid and under pressure. This pressure pushes brain tissue up against the skull, and can sometimes even enlarge the head. In Shelby's case, this enlarged ventricle is also coupled with an area of the brain that is thinner than normal anyway. So, even when they relieve the pressure, that portion of the brain will still be a little undersized. The extent of that is unknown right now.
The affected area is the right, back, and upper portion of the brain. These areas control the motor skills and vision of her left side. The good news is that so far, her left side motor skills dont seem different than her right side. It sounds like the cognitive portions of the brain which are toward the front are much less affected. Of course the neurosurgeon can't really predict anything with much accuracy right now.
We will be coming back to Duke many times in the next few years. One thing we really like is that they have a developmental program here which, along with our pediatrition in Asheville, will be following Shelby's development progress and looking for anything unusual.
The bottom line is that surgery is fairly basic, and we won't know much about long term effects. The doctors have seen the whole spectrum from no impairment to pretty serious long term disabilities. The doctors seem pretty confident that she will not fall into the latter category.
We will update tomorrow after the surgery which is sometime in the afternoon. Keep us in your thoughts and prayers!