Syndrome of inappropriate antidiuretic hormone after laparoscopic-assisted vaginal hysterectomy.

A 37-year-old woman undergoing laparoscopic-assisted vaginal hysterectomy experienced seizures and subsequent coma on the first postoperative day. Early recognition of the syndrome of inappropriate antidiuretic hormone with aggressive treatment and avoidance of hypoxia resulted in full recovery without sequelae. Menstruant women are 25 times more likely to die or suffer permanent brain damage from hyponatremic encephalopathy than menopausal women.