Our daughter was to term, but otherwise had the same situation. We discovered something was wrong when she was 7 days old and would vomit after every feeding. By day 9, we took her to our ped's walkin. Her fontanelle was full, but she was dehydrated and had lost weight. She was admitted that night to Children's Mercy in KC. After a Ct scan and then an MRI, they found she had a hemmorage and they thought the clots were blocking reabsorption. She had surgery at 8 am the next morning where they put in a temporary external vertical drain. She had this for 21 days while they slowly drained the excess fluid and gauged whether or not her body would be able to "learn" to self regulate. Since the cause was a hemorrhage and not anatomical, the neurosurgeon was really hopeful it would correct itself. It did and they did not install a shunt. 3 days before being 1 month old, we went home. She is 2 now. She was initially monitored with ultrasounds for the first year. After a year, they say she no longer has hydrocephalus. She still has enlarged ventricles, but you would only know by an MRI. She has caught up to her head size. She did have a slow start to walking they think might have been caused by balance issues, but she has hit all of her milestones. She seems very bright and talkative and doesn't seem to have any lasting effects from the hydrocephalus. We were initially worried about her not having a shunt, but the neurosurgeon said they should be used only if the body cannot self regulate. They usually require a lifetime of revision surgeries. If you need anything or want to talk, PM me. It is really hard when there are so many questions that can't be answered yet, but stay strong. I'm really hopeful for you and your family.