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Hyponatremia-associated catatonia in an elderly male: A case report and review of literature

Catatonia is a condition characterized by abnormal behavior and reported to occur in various psychiatric as well as in medical illnesses. The association of hyponatremia and catatonia in the absence of confounding factors is a matter of debate. There are few case reports that found the association between hyponatremia and catatonia, but none of them reported in the absence of confounding factors. We report a case of an elderly male presented with catatonia in association with hyponatremia. Complete resolution of symptoms was associated with normalization of sodium and the use of a low dose of lorazepam. It is suggested that the evaluation of serum electrolyte levels should be an essential part of the evaluation of an older adult with catatonia.