Water on the brain
In infants the most obvious sign of hydrocephalus is usually an abnormally large head. (That is one reason a baby’s head should be measured at every well-baby visit). Symptoms of hydrocephalus in an infant may include vomiting, sleepiness, irritability, an inability to look upwards, and seizures.
In older children and adults there is no head enlargement from hydrocephalus, but symptoms may include headache, nausea, vomiting and, sometimes, blurred vision. There may be problems with balance, delayed development in walking or talking, and poor coordination.
Irritability, fatigue, seizures, and personality changes such as an inability to concentrate or remember things may also develop. Drowsiness and double vision are common symptoms as hydrocephalus progresses.
Treatment of hydrocephalus involves the insertion of a shunt to let the excess fluid exit and relieve the pressure on the brain. The shunt is a flexible, plastic tube with a oneway valve. The shunt is inserted into the ventricular system of the brain to divert the flow of CSF into another area of the body, where the CSF can drain and be absorbed into the bloodstream.
The prognosis (outlook) with hydrocephalus depends the cause and the timing of the diagnosis and treatment. Many children treated for hydrocephalus are able to lead normal lives with few, if any, limitations. In some cases, cognitive impairments in language and non-language functions may occur. Problems with shunts such as infection or malfunction require revision of the shunt.
The word “hydrocephalus” in Greek literally means “watery head.”
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