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Central pontine myelinolysis
Central pontine myelinolysis is a neurologic disease caused by severe damage of the myelin sheath of nerve cells in the brainstem, more precisely in the area termed the pons. Additional recommended knowledge
CausesThe most common cause is the rapid correction of low blood sodium levels (hyponatremia). Some scholars postulate that the real cause might be the lack of a substance that is essential for brain activity and is lacking due to malnutrition. The fact that this condition is most frequently observed in patients with general ill health (alcoholism, cachexia etc.) is in accordance with this assumption. [1] DiagnosisImaging by MRI demonstrates an area of high signal return on T2 weighted images. SymptomsFrequently observed symptoms in this disorder are sudden para or quadraparesis, dysphagia, dysarthria, double vision and loss of consciousness. The patient may experience locked-in syndrome where cognitive function is intact, but all muscles are paralyzed with the exception of eye blinking. TreatmentTo avoid myelinolysis, the correction of hyponatremia should not exceed 1 mEq/L per hour. [2][3] References
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Central_pontine_myelinolysis". A list of authors is available in Wikipedia. |