Tranexamic Acid as a Successful Therapy in Turner Syndrome With Recurrent Overt Gastrointestinal Bleeding due to Small Intestinal Venous Anomalies.

Small intestinal venous abnormalities are an underrecognized condition as an etiology of overt gastrointestinal (GI) bleeding in patients with Turner syndrome. Evidence-based therapeutic options for these lesions are lacking in the published literature. A 47-year-old woman with Turner syndrome with a 30-year course of recurrent GI bleeding was found to harbor diffuse small intestinal venous ectasias through endoscopic imaging. Achievement of a 21-month clinical remission (elimination of hospitalizations for overt GI bleeding and normalization of hemoglobin concentration) was reached after initiation of tranexamic acid titrated to 2,600 mg daily.