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Low-pressure hydrocephalus (LPH) is a condition whereby ventricles are enlarged and the individual experiences severe dementia, inability to walk, and incontinence – despite very low intracranial pressure (ICP). [1] Low pressure hydrocephalus appears to be a more acute form of normal pressure hydrocephalus. If not diagnosed in a timely ...
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).
Normal pressure hydrocephalus (NPH) looks at CSF flow values and velocities, which is important for diagnosis because NPH is idiopathic and has varying symptoms amongst patients including urinary incontinence, dementia, and gait disturbances. Increased aqueduct CSF stroke volume and velocity are indicators of NPH. [7]
Normal pressure hydrocephalus: Triad (Triad of Sandblom) Malena, Obstructive jaundice, Biliary colic: Hemobilia: Triad of Meigs' Syndrome: ascites, pleural effusion, benign ovarian tumor: Meigs' syndrome: Hemolytic–Uremic Syndrome Triad: Anaemia, Thrombocytopenia, Kidney failure (But see Pentad of TTP below) Hemolytic–uremic syndrome ...
Macewen's sign or Macewen sign (/ m ə ˈ k j uː ə n / mə-KEW-ən) is a sign used to help to diagnose hydrocephalus [1] (accumulation of excess cerebrospinal fluid) and brain abscesses. Tapping the skull near the junction of the frontal, temporal, and parietal bones will produce cracked pot sound. Positive test is indication of separated ...
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]
OPEC+ faces a major oil oversupply in 2025, challenging production increases. The coalition has tried to boost oil prices by holding back output. Instead, members are ceding control to non-OPEC ...
The four types of hydrocephalus are communicating, noncommunicating, ex vacuo, and normal pressure. Diagnosis is typically made by physical examination and medical imaging. [1] Hydrocephalus is typically treated by the surgical placement of a shunt system. [1] A procedure called a third ventriculostomy is an option in some people. [1]