normal pressure hydrocephalus


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nor·mal pres·sure hy·dro·ceph·a·lus

a type of hydrocephalus developing usually in older people, due to failure of cerebrospinal fluid to be absorbed by the pacchionian granulations, and characterized clinically by progressive dementia, unsteady gait, urinary incontinence, and usually, a normal spinal fluid pressure.

normal pressure hydrocephalus

Etymology: L, norma, rule, premere, to press; Gk, hydor, water, kephale, head
a condition in which there is dilation of the ventricles without an increase in intracranial pressure. Classic symptoms are gait disturbance, memory/cognitive problems, and urinary incontinence. Diagnosis is made by lumbar puncture to remove cerebrospinal fluid and by watching to see if any of the symptoms improve.

normal pressure hydrocephalus

A misnomer referring to a condition seen in older adults that consists of low-grade hydrocephalus and intermittently elevated intracranial pressure, usually nocturnal, causing Hakim’s triad of symptoms (gait apraxia, urinary incontinence, dementia).

normal pressure hydrocephalus

Adult hydrocephalus, communicating hydrocephalus, idiopathic hydrocephalus Neurology A form of gradual onset progressive hydrocephalus, which accounts for ±5% of all dementias Etiology Idiopathic, obstruction to CSF flow; CSF is produced normally but not reabsorbed; the brain's ventricles enlarge to accommodate the ↑ volume of CSF; CSF pressure remains normal; it is accompanied by brain atrophy due to compression by the fluid-filled ventricles Risk factors Conditions causing obstruction of CSF–eg, closed head injury, neurosurgery with craniotomy, meningitis, subarachnoid hemorrhage. See Hydrocephalus.

nor·mal pres·sure hy·dro·ceph·a·lus

(nōr'măl presh'ŭr hī'drō-sef'ă-lŭs)
A type of hydrocephalus developing usually in older people, due to failure of cerebrospinal fluid to be absorbed by the pacchionian granulations, and characterized clinically by progressive dementia, unsteady gait, urinary incontinence, and usually, a normal spinal fluid pressure.
References in periodicals archive ?
NINDS Normal Pressure Hydrocephalus Information Page, National Institute of Neurological Disorders and Stroke, National Institute of Health, http://www.
Estimated incidence of normal pressure hydrocephalus and shunt outcome in patients residing in assisted-living and extended-care facilities.
Features of gait most responsive to tap test in normal pressure hydrocephalus.
Life NPH: Hope for people with normal pressure hydrocephalus.
The search terms used were: polyneuropathy and normal pressure hydrocephalus; Guillain-Barre syndrome and normal pressure hydrocephalus; and normal pressure hydrocephalus.
Guideline Committee for Idiopathic Normal Pressure Hydrocephalus, Japanese Society of Normal Pressure Hydrocephalus: clinical guidelines for idiopathic normal pressure hydrocephalus.
Comparison between the lumbar infusion and CSF tap tests to predict outcome after shunt surgery in suspected normal pressure hydrocephalus.
The term normal pressure hydrocephalus can be misleading because there are transient rises in intracranial pressure noted during intracranial monitoring of these patients.
Normal pressure hydrocephalus is a neurological disorder diagnosed by a triad of symptoms along with radiographic findings.
Outcome, the leading provider of Web-based solutions for quality initiatives and post-approval programs, today announced that NeuroKnowledge(TM), a joint program by Outcome and the American Association of Neurological Surgeons (AANS) has been selected by Codman & Shurtleff to power a 250-site registry for adult patients with normal pressure hydrocephalus (NPH).