Camostat Mesylate for Protein-losing Enteropathy After Fontan Operation

Inclusion Criteria: * history of protein-losing enteropathy after Fontan operation * more than 6 months after Fontan operation * more than 3 months of protein-losing enteropathy history (ascites, edema, diarrhea, etc) and less than 3.0 mg/dL of serum albumin without evidence of renal or liver disease Exclusion Criteria: * inability to take oral camostate mesylate * hypersensitivity to camostate mesylate * patients with taking similar medication or prohibited combination drug * patients participating in other clinical trials * patients with diet limitation * patients with genetic disease such as galactose intolerance, Lapp lactase deficiency, glucose-galactose malabsorption