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Hyponatraemia: Difference between revisions
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== Complications == | == Complications == | ||
=== Cerebral oedema === | |||
''Main article: [[Cerebral oedema]]'' | |||
Cerebral oedema is a potentially life-threatening complication of hyponatraemia, usually only seen in case of severe acute hyponatraemia. Oedema increases the intracranial pressure, which can cause [[cerebral herniation]]. | |||
=== Osmotic demyelination syndrome === | === Osmotic demyelination syndrome === | ||
Osmotic demyelination syndrome (ODS), previously called central pontine myelinolysis, is a complication of too rapid correction of severe chronic hyponatraemia. This is rare in case of sodium levels above 120 mmol/L or if the hyponatraemia has occured within a few days (as the body's compensatory mechanisms haven't kicked in yet). | Osmotic demyelination syndrome (ODS), previously called central pontine myelinolysis, is a complication of too rapid correction of severe chronic hyponatraemia. This is rare in case of sodium levels above 120 mmol/L or if the hyponatraemia has occured within a few days (as the body's compensatory mechanisms haven't kicked in yet). | ||
Symptoms of ODS occur a few days after the correction, and include cerebellar symptoms and other neurological deficits. Some may experience locked-in syndrome. | Symptoms of ODS occur a few days after the correction, and include cerebellar symptoms and other neurological deficits. Some may experience locked-in syndrome. It may be reversible in some cases. | ||