The two most common complications from a hydrochephalus shunt are malfunction due to blockage and infection, according to the Hydrocephalus Association. Other complications include over-drainage, under-drainage, seizures and abdominal complications.
Hydrocephalus is the buildup of fluid in the deep cavities of the brain, which are called ventricles. This buildup increases the size of the ventricles, which puts pressure on the brain, notes Mayo Clinic.
There is no prevention of or cure for hydrocephalus. The only available treatments involve surgery, and the most common procedure is surgical implantation of a flexible tube called a shunt, states the Hydrocephalus Association. A surgeon inserts the shunt into the ventricular system of the brain, which drains fluid from the ventricle into another area of the body, usually the abdominal cavity, which absorbs the fluid.