The four of the non-hydroocephalus postmortem patients had complex cardiac malformation and other visceral anomalies. Nine of the 12 clinical examined patients had normal intellegence; in addition, 40 percent had either focal neurological deficits or gait abnormalities, and 60 percent had abnormal EEGs.
The NINDS notes that when more abnormalities occur in the brain along with Dandy-Walker syndrome, the shorter the patient's life span. Treatment is focused on the patient's particular problems, with excess fluid drainage being the hallmark treatment method; this reduces intracranial pressure and swelling. If treated early, intellectual development may not be as affected.
Elizabeth Stannard Gromisch received her bachelor’s of science degree in neuroscience from Trinity College in Hartford, CT in May 2009. She is the Hartford Women's Health Examiner and she writes about abuse on Suite 101.