Spontaneous Intracranial Hypotension

Spontaneous intracranial hypotension (SIH /cerebrospinal fluid loss syndrome) is an often unrecognized condition that can lead to a long course of suffering. The underlying cause of the disease is a loss of cerebrospinal fluid, usually triggered by a small tear in the dura mater in the spinal region caused by a sharp-edged microspur (calcified disc herniation) or, less commonly, by a tear in a nerve root pocket. The continuous loss of cerebrospinal fluid and the resulting negative intracranial pressure typically lead to orthostatic headaches with pain that increases in intensity when the patient is standing upright. Other symptoms include nausea, neck pain, tinnitus/hearing disturbances, double vision, impaired concentration and attention, sensitivity to noise, balance disturbances, and, in rare cases, impaired consciousness.


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