Long-term persistence of inappropriate antidiuretic hormone secretion following minor head injury

While the syndrome of inappropriate antidiuretic hormone secretion (SIADH) is typically transient, it can persist after even minor head trauma, highlighting the importance of long-term follow-up in cases of post-traumatic hyponatremia.Urea therapy is effective and well-tolerated for managing chronic hyponatremia in SIADH, offering a sustainable long-term treatment option.Even mild hyponatremia can lead to subtle but impactful cognitive and motor symptoms.