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  2. Normal pressure hydrocephalus - Wikipedia

    en.wikipedia.org/wiki/Normal_pressure_hydrocephalus

    The ICP gradually falls but remains slightly elevated, and the CSF pressure reaches a high normal level of 15 to 20 cm H 2 O. Measurements of ICP, therefore, are not usually elevated. Because of this, patients do not exhibit the classic signs that accompany increased intracranial pressure such as headache, nausea, vomiting, or altered ...

  3. Hydrocephalus - Wikipedia

    en.wikipedia.org/wiki/Hydrocephalus

    Hydrocephalus ex vacuo from vascular dementia as seen on MRI. Normal pressure hydrocephalus (NPH) is a particular form of chronic communicating hydrocephalus, characterized by enlarged cerebral ventricles, with only intermittently elevated cerebrospinal fluid pressure. Characteristic triad of symptoms are; dementia, apraxic gait and urinary ...

  4. Cerebral shunt - Wikipedia

    en.wikipedia.org/wiki/Cerebral_shunt

    IIH results in a raised intracranial pressure and can lead to permanent loss of vision. Normal pressure hydrocephalus, also known as Hakim-Adams syndrome Excess cerebrospinal fluid (CSF) occurs in the ventricles, and with normal or slightly elevated cerebrospinal fluid pressure

  5. The 6 most common headache types — and when to see a doctor

    www.aol.com/news/6-most-common-headache-types...

    A headache is a pain in the head, neck or face that is often described as a sensation of pressure that varies in location, frequency and severity, according to the National Institutes of Health.

  6. Aqueductal stenosis - Wikipedia

    en.wikipedia.org/wiki/Aqueductal_stenosis

    The ventricle then collapses and blood vessels can be torn in the process. This in turn can lead to headache, hemorrhage, or slit ventricle syndrome. Underdraining occurs when the valve pressure is too high and CSF flows out too slowly. This results in symptoms of hydrocephalus as the CSF is still collecting rather than being absorbed or ...

  7. Idiopathic intracranial hypertension - Wikipedia

    en.wikipedia.org/wiki/Idiopathic_intracranial...

    Occasionally, the CSF pressure measurement may be normal despite very suggestive symptoms. This may be attributable to the fact that CSF pressure may fluctuate over the course of the normal day. If the suspicion of problems remains high, it may be necessary to perform more long-term monitoring of the ICP by a pressure catheter.

  8. Intracranial pressure - Wikipedia

    en.wikipedia.org/wiki/Intracranial_pressure

    Intracranial pressure (ICP) is the pressure exerted by fluids such as cerebrospinal fluid (CSF) inside the skull and on the brain tissue. ICP is measured in millimeters of mercury and at rest, is normally 7–15 mmHg for a supine adult. This equals to 9–20 cmH 2 O, which is a common scale used in lumbar punctures. [1]

  9. CSF tap test - Wikipedia

    en.wikipedia.org/wiki/CSF_tap_test

    The CSF tap test, sometimes lumbar tap test or Miller Fisher Test, is a medical test that is used to decide whether shunting of cerebrospinal fluid (CSF) would be helpful in a patient with suspected normal pressure hydrocephalus (NPH).