NORMAL-PRESSURE HYDROCEPHALUS. CASE REPORT
Abstract:
Normal-pressure hydrocephalus is a curable neurological disease, described by Adams and
Hakim in 1965, characterized by gait disturbance, urinary incontinence, dementia or cognitive disorders
that occur generally in the sixth and seventh decades of life. It has diverse etiology: post subarachnoid
hemorrhage, traumatic after posterior fossa surgery, stenosis of aqueduct of Sylvius. In 60% of cases, no
cause is identified. Imaging reveals enlargement of the lateral ventricles with compression or thinning of
the corpus callosum. Hakim and Adams (1965) offered the hypothesis of “hydraulic press” to explain
the enlargement of the ventricles. They said that the process begins with an initial period of increased
intraventricular pressure, leading to ventricular dilatation. After the pressure returns to normal, the
pulsation of the cerebrospinal fluid acts on a large area of the ventricular walls, as an increased
downforce.
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