Non-tumoural aqueduct stenosis and normal pressure hydrocephalus in the elderly.
From 1981 to 1985 a prospective study on normal pressure hydrocephalus was performed. One of the aims of this study was to determine the site of CSF obstruction. Among 17 consecutive patients with a tentative diagnosis of normal pressure hydrocephalus, nine appeared to have non-communicating hydrocephalus most probably due to primary non-tumoural aqueduct stenosis. This unexpected finding provides evidence that non-tumoural aqueduct stenosis is a frequent cause of normal pressure hydrocephalus in older patients. Some clinical, aetiological and therapeutic aspects in this particular subgroup are discussed.
Vanneste
J
J
Hyman
R
R
D000368:Aged; D002535:Cerebral Aqueduct; D002557:Cerebrospinal Fluid Shunts; D003251:Constriction, Pathologic / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology*; D006850:Hydrocephalus, Normal Pressure / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D008297:Male; D011446:Prospective Studies; D014057:Tomography, X-Ray Computed