The syndrome of inappropriate antidiuretic hormone secretion (SIADH) is the most common cause of euvolemic hyponatremia in hospitalized patients. The prognosis of SIADH correlates with the underlying cause and the effects of severe hyponatremia and its overzealous correction. Rapid and complete recovery tends to be the rule with drug-induced SIADH when the offending agent is withdrawn.
Successful treatment of pulmonary or central nervous system infection also can lead to correction of SIADH. However, patients who present with neurologic symptoms or have severe hyponatremia even without symptoms may develop permanent neurologic impairment.
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Cite this: Vecihi Batuman. Fast Five Quiz: What Do You Know About the Syndrome of Inappropriate Antidiuretic Hormone Secretion? - Medscape - Jun 03, 2016.