Anesthetic management of a patient with congenital methemoglobinemia.

A knowledge of congenital methemoglobinemia is essential to deliver a safe anesthetic to this group of patients. We report the case of a 33-year-old patient with congenital methemoglobinemia undergoing a gynecological procedure, and discuss the anesthetic implications. The etiology, pathophysiology, classification, diagnosis, clinical manifestations, anesthetic considerations, treatment options, and postoperative management are also discussed.