Normal-Pressure Hydrocephalus and Arthritis

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Abstract
Just 20 years ago, normal-pressure hydrocephalus was established as a clinical entity by Adams and colleagues in a landmark article in the Journal. 1 The clinical features include the triad of dementia, gait disorder, and urinary incontinence associated with ventricular dilatation in the absence of evidence of increased intracranial pressure.Although the delayed onset of hydrocephalus after subarachnoid hemorrhage and meningitis had been well established earlier, normal-pressure hydrocephalus attracted special interest because it was often idiopathic and occult and particularly because it entered into the differential diagnosis of the treatable dementias. The fact that the syndrome was reversed in some patients . . .