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hydrocephalus (hīˌdrəsĕfˈələs), also known as water on the brain, developmental (congenital) or acquired condition in which there is an abnormal accumulation of body fluids within the skull. The congenital form may be associated with other abnormalities. The acquired form may follow meningitis or another cerebral inflammation or tumor. The accumulation of fluid causes compression of the brain and enlargement of the skull, sometimes with separation of bone structures. Paralysis and death may result or, at the least, mental retardation. Many forms of therapy, including surgery, have been attempted, but usually without much success in extreme cases.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



edema of the brain, an excessive increase in the amount of cerebrospinal fluid in the cranial cavity.

The cause of hydrocephalus is either excessive production of cerebrospinal fluid in the brain or obstruction of its efflux from the ventricles of the brain, as a result of inflammatory processes, tumors, or other diseases leading to closing of the apertures through which the fluid escapes from the ventricles. Congenital hydrocephalus is caused by congenital syphilis and toxoplasmosis; acquired hydrocephalus originates (usually in early childhood) after meningitides, menin-goencephalitides, head traumas, intoxications, and other afflictions. The most common symptom of hydrocephalus in children is an enlarged skull. In places where the bones of the skull did not knit normally, rounded, pulsating protrusions may form. Frequently there is strabismus and nystagmus. Sometimes a reduction of vision and hearing, headaches, and nausea are observed. Intelligence is diminished. Treatment of hydrocephalus calls for the removal of the cause, sometimes by surgery. It can be prevented by the elimination of conditions injurious to the mother during pregnancy and the prevention of neuroinfections during childhood.


Arendt, A. A. Gidrotsefaliia i ee khirurgicheskoe lechenie. Moscow,1948.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


, hydrocephaly
accumulation of cerebrospinal fluid within the ventricles of the brain because its normal outlet has been blocked by congenital malformation or disease. In infancy it usually results in great enlargement of the head
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Chen CC, Kasper E, Warnke P.Palliative stereotactic-endoscopic third ventriculostomy for the treatment of obstructive hydrocephalus from cerebral metastasis.
The most common complications encountered in adults in decreasing order of frequency were infarcts (31.25%), obstructive hydrocephalus (25%), cerebritis (9.37%) and ependymitis (6.25%).
la), along with obstruction of the mesencephalic duct and development of obstructive hydrocephalus (Fig.
The most common diagnosis group associated with hospitalization for neurocysticercosis was epilepsy/convulsions, which occurred in 57.3% of hospitalizations, followed by obstructive hydrocephalus (17.7%) and headache (12.4%) (Table 4).
The frequency of patients with NMOSD and obstructive hydrocephalus is greater than that in the general adult population [19].
Endoscopic third ventriculostomy (ETV) is a widely accepted treatment for obstructive hydrocephalus. The procedure was first performed by William Mixter, an urologist in 1923 using an ureteroscope to fenestrate the floor of the third ventricle8.
Nine patients (56%) presented with ventriculomegaly and obstructive hydrocephalus due to their intraventricular lesion.
Lipoma of the ambient cistern causing obstructive hydrocephalus. J Neurosurg Sci 1987;31:53-58.
A diagnosis of obstructive hydrocephalus was established.

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